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Author SHA1 Message Date
JellyTau CI bf03175b56 chore(updater): manifest for v0.11.2 2026-08-23 21:48:32 +00:00
596 changed files with 15 additions and 169293 deletions
-18
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@@ -1,18 +0,0 @@
node_modules
.git
.gitignore
.claude
.svelte-kit
build
dist
.env
.env.local
.vscode
.idea
target
*.apk
*.aab
*.log
coverage
src-tauri/gen
src-tauri/target
-23
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@@ -1,23 +0,0 @@
# Local Android release signing.
#
# Copy to `.env` and fill in. `.env` is gitignored and is the single source of
# truth for local release signing — scripts/write-keystore-properties.sh reads
# it and regenerates src-tauri/gen/android/keystore.properties before every
# release build, because `tauri android init` overwrites that file.
#
# Only needed for `bun run android:build:release`. Debug builds sign with the
# local debug keystore and need nothing here.
#
# CI does not use this file: build-release.yml reconstructs the keystore from
# the ANDROID_KEYSTORE_BASE64 secret and writes the same properties itself.
# Key alias inside the keystore.
ANDROID_KEY_ALIAS=jellytau
# Absolute path to the .jks. Keep it outside the repo, or in the gitignored
# android-keystore/ directory.
ANDROID_KEYSTORE_FILE=/absolute/path/to/jellytau-release.jks
# Keystore and key passwords. These are secrets — never commit the filled-in .env.
ANDROID_KEYSTORE_PASSWORD=
ANDROID_KEY_PASSWORD=
-103
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@@ -1,103 +0,0 @@
name: Bug report
about: Something behaves incorrectly
title: ""
labels: ["bug"]
body:
- type: markdown
attributes:
value: |
Security vulnerabilities do **not** go here — see
[SECURITY.md](../../SECURITY.md).
- type: textarea
id: what-happened
attributes:
label: What happened
description: What you did, what you expected, and what you got instead.
placeholder: |
1. Opened an album from the Music library
2. Tapped the third track
3. Playback started from the first track instead
validations:
required: true
- type: input
id: version
attributes:
label: JellyTau version
description: Settings scrolls to the bottom, or the filename you installed.
placeholder: "0.9.1"
validations:
required: true
- type: dropdown
id: platform
attributes:
label: Platform
options:
- Linux (AppImage)
- Linux (deb)
- Linux (rpm)
- Linux (Arch package)
- Windows
- Android
validations:
required: true
- type: markdown
attributes:
value: |
### Playback questions
If this involves playback, these three answers decide which of several
very different code paths you were on. "I don't know" is a fine answer.
- type: dropdown
id: source
attributes:
label: Was the media streaming or downloaded?
options:
- Streaming from the server
- Downloaded for offline use
- Not playback-related
validations:
required: true
- type: dropdown
id: transcode
attributes:
label: Was the server transcoding?
description: Jellyfin's dashboard shows this while something is playing.
options:
- Direct play
- Transcoding
- Don't know
- Not playback-related
- type: dropdown
id: kind
attributes:
label: Music or video?
options:
- Music
- Video (movie)
- Video (TV episode)
- Not playback-related
- type: textarea
id: logs
attributes:
label: Logs
description: |
Android: `adb logcat | grep -i jellytau`.
Linux: run from a terminal, or `RUST_LOG=debug jellytau` for more.
In the app, `localStorage.setItem("jellytau:logLevel","debug")` in the
webview console turns the frontend up too.
render: shell
- type: textarea
id: server
attributes:
label: Jellyfin server
description: Version, and anything unusual about the library layout.
placeholder: "10.9.11, series stored without season folders"
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name: Feature request
about: Suggest something JellyTau should do
title: ""
labels: ["enhancement"]
body:
- type: textarea
id: problem
attributes:
label: What are you trying to do?
description: |
The situation, not the solution. "I listen to albums in a fixed order and
lose my place when I switch devices" tells us more than "add a sync
button", and often has a better answer than the one you had in mind.
validations:
required: true
- type: textarea
id: proposal
attributes:
label: What would you like it to do?
validations:
required: true
- type: dropdown
id: platform
attributes:
label: Which platforms does this matter on?
multiple: true
options:
- Linux
- Windows
- Android
- type: textarea
id: alternatives
attributes:
label: Anything you have tried, or how other clients handle it
-22
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@@ -1,22 +0,0 @@
## What and why
<!-- What changes, and the reason. The diff shows the what; the why is what
the commit log is for. -->
## How it was verified
<!-- What you actually ran or clicked. "Tests pass" on its own says little;
"played a transcoded episode on Android, seeked twice, backgrounded it"
says a lot. -->
## Checklist
- [ ] `bun run check`, `bun run test`, `bun run format:check`, `bun run lint`
- [ ] `cargo fmt`, `cargo clippy --all-targets -- -D warnings`, `cargo test`
- [ ] `bun run check:boundary` — no Jellyfin taxonomy in the frontend
- [ ] New requirement-implementing code carries a `TRACES:` comment, and every
ID it names exists in `docs/requirements.md` (`bun run traces:validate`)
- [ ] **Bug fix:** a test that reproduces it was written *first* and observed
failing before the fix
- [ ] Android source edits were made in `src-tauri/android/src` and synced with
`scripts/sync-android-sources.sh` (never edit `gen/` directly)
-298
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@@ -1,298 +0,0 @@
name: '🏗️ Build and Test JellyTau'
on:
push:
branches:
- master
paths-ignore:
- '**/*.md'
pull_request:
branches:
- master
paths-ignore:
- '**/*.md'
workflow_dispatch:
env:
# Incremental state is never reused between CI runs -- pure disk cost.
CARGO_INCREMENTAL: 0
jobs:
test:
name: Run Tests
# A release push triggers build-release.yml on the tag, which runs this exact
# test suite itself — and on a single-slot runner the two ~1h workflows would
# otherwise serialize/contend. Skip the duplicate for chore(release) commits.
# (head_commit is absent on pull_request/workflow_dispatch; startsWith(null,…)
# is false there, so those events still run.)
if: "!startsWith(github.event.head_commit.message, 'chore(release)')"
runs-on: linux/amd64
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Cache Rust dependencies
uses: actions/cache@v3
with:
# Registry only -- never src-tauri/target. That directory is ~16 GB and
# was cached under five separate keys, which filled the runner's 74 GB
# disk at ~1.15 GB/day (23 GB in 20 days, measured Aug 2026).
# registry/src is omitted too: cargo re-extracts it for free from
# registry/cache (155 MB of .crate tarballs vs 1.1 GB extracted).
path: |
~/.cargo/registry/index
~/.cargo/registry/cache
~/.cargo/git/db
# One shared key across every job. The old per-job keys existed to stop
# debug/release target artifacts clobbering each other; with target no
# longer cached, registry contents are target-independent, so all jobs
# want the same crates. First job to finish saves; the rest restore.
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
restore-keys: |
${{ runner.os }}-cargo-registry-
- name: Cache Node dependencies
uses: actions/cache@v3
with:
path: |
~/.bun/install/cache
node_modules
key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lock') }}
restore-keys: |
${{ runner.os }}-bun-
- name: Install dependencies
run: |
bun install
# Tripwire for domain-taxonomy leaks into the presentation layer (a
# multi-type includeItemTypes query defining a category in the frontend).
# See scripts/check-frontend-boundary.sh and
# docs/specs/scoped-search-boundary.md.
- name: Check frontend/backend boundary
run: bash scripts/check-frontend-boundary.sh
# The docs are the maintained source of truth for architecture and
# process, and they cross-reference each other heavily. A rename that
# misses a link turns a doc into a dead end silently. Pure shell + git —
# no tool is installed at job time.
- name: Check documentation links
run: bash scripts/check-doc-links.sh
# Formatting, linting and type-checking were all configured in this repo
# and enforced by nothing: .prettierrc described a tree where 199 files did
# not match it, eslint.config.js ran in no workflow and in no hook, and
# `bun run check` ran only in build-release.yml — i.e. a type error could
# sit on master until somebody cut a tag. These three steps are what make
# those configs load-bearing. All are project deps installed by
# `bun install`; nothing is fetched at job time.
# Cheap tripwire for a class of defect this repo kept hitting: tooling on
# a rarely-taken path. scripts/build-android.sh ran `npm install` on its
# clean-build branch -- in a bun project, ignoring bun.lock and
# re-resolving the tree, which is how the Tauri plugin crate/package
# versions drifted apart and broke a release build. It survived because
# clean builds are rare.
- name: Check build tooling
run: bash scripts/check-tooling.sh
- name: Check formatting
run: bun run format:check
# RATCHET — this number only ever goes DOWN. Same policy as MIN_THRESHOLD
# in traceability-check.yml and the coverage thresholds in
# vitest.config.ts. 159 is what the tree carried when the gate went in; the
# backlog is real findings (dead bindings, unkeyed {#each}, `any` at the
# IPC boundary) that eslint.config.js documents rule by rule, each parked
# at "warn" until its class is cleared and it can be promoted to "error".
# Lower this as you clear them. Never raise it to make a build pass.
- name: Lint
run: bun run lint -- --max-warnings=158
- name: Check TypeScript
run: |
bunx svelte-kit sync
bun run check
# Tauri refuses to build when a plugin's Rust crate and npm package are on
# different minor versions. Nothing here runs `tauri build` -- that only
# happens on a tag -- so a mismatch introduced on master stayed invisible
# until the release build, which is where it was found: v0.10.0 prep hit
# `tauri-plugin-log (v2.8.0) : @tauri-apps/plugin-log (v2.9.0)`. `cargo
# check`, clippy, the tests and svelte-check had all passed.
#
# `tauri info` performs the same comparison the bundler does, without a
# build. Grepping its output is crude, but the alternative is discovering
# this at tag time again.
- name: Check Tauri plugin versions match
run: |
set -e
if bunx tauri info 2>&1 | tee /tmp/tauri-info.txt | grep -q "version mismatched"; then
echo "::error::A Tauri plugin's Rust crate and npm package versions disagree."
echo "::error::The release build will refuse to start. Align them in"
echo "::error::src-tauri/Cargo.toml and package.json (both are pinned exactly)."
grep -A6 "version mismatched" /tmp/tauri-info.txt || true
exit 1
fi
echo "✅ Tauri plugin crate/package versions agree."
# Coverage rather than a bare `bun run test`: same suite, plus the
# thresholds in vitest.config.ts, so a large untested module or a deleted
# test fails here instead of being noticed months later.
- name: Run frontend tests
run: |
bunx svelte-kit sync
bun run test:coverage
# CLAUDE.md has required `cargo fmt` + `cargo clippy` before every commit
# for as long as the rule has existed, but nothing in CI checked either,
# so the requirement rested entirely on memory. Both components are baked
# into the builder image (Dockerfile.builder: `rustup component add
# rustfmt clippy`) — nothing is installed at job time.
- name: Check Rust formatting
run: |
cd src-tauri
cargo fmt --all -- --check
# Clippy is a hard gate. It was advisory while the tree carried a warning
# backlog; that backlog is gone (0 warnings on 1.97.1, the pinned
# toolchain), so a warning here is now new breakage rather than old noise.
#
# This only means anything because src-tauri/rust-toolchain.toml pins the
# compiler: clippy's lint set moves between releases, so an unpinned gate
# would fail on whatever the runner happened to install. The pin and this
# flag stand or fall together — if you unpin, drop this back to advisory.
- name: Run clippy
run: |
cd src-tauri
cargo clippy --all-targets -- -D warnings
- name: Run Rust tests
run: |
cd src-tauri
cargo test
cd ..
# Fast per-commit Android compile check. This does NOT build a shippable APK:
# the full signed release APK is built only on tag pushes by build-release.yml
# (which runs sync-android-sources.sh + signing). Running the full bundle here
# too would duplicate a ~15min build and, without the sync step, produced an
# unsigned APK missing our custom sources/icons/proguard rules anyway.
# `cargo check` for the Android target (~1min) catches Android-specific Rust
# breakage without linking, bundling, or signing.
android-check:
name: Android Compile Check
runs-on: linux/amd64
needs: test
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
env:
ANDROID_HOME: /opt/android-sdk
ANDROID_SDK_ROOT: /opt/android-sdk
NDK_HOME: /opt/android-sdk/ndk/27.0.11902837
ANDROID_NDK_HOME: /opt/android-sdk/ndk/27.0.11902837
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Cache Rust dependencies
uses: actions/cache@v3
with:
# Registry only -- never src-tauri/target. That directory is ~16 GB and
# was cached under five separate keys, which filled the runner's 74 GB
# disk at ~1.15 GB/day (23 GB in 20 days, measured Aug 2026).
# registry/src is omitted too: cargo re-extracts it for free from
# registry/cache (155 MB of .crate tarballs vs 1.1 GB extracted).
path: |
~/.cargo/registry/index
~/.cargo/registry/cache
~/.cargo/git/db
# One shared key across every job. The old per-job keys existed to stop
# debug/release target artifacts clobbering each other; with target no
# longer cached, registry contents are target-independent, so all jobs
# want the same crates. First job to finish saves; the rest restore.
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
restore-keys: |
${{ runner.os }}-cargo-registry-
- name: Cache Node dependencies
uses: actions/cache@v3
with:
path: |
~/.bun/install/cache
node_modules
key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lock') }}
restore-keys: |
${{ runner.os }}-bun-
- name: Install dependencies
run: bun install
- name: Cargo check (aarch64-linux-android)
run: |
TC="$NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin"
export CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER="$TC/aarch64-linux-android24-clang"
export CC_aarch64_linux_android="$TC/aarch64-linux-android24-clang"
export AR_aarch64_linux_android="$TC/llvm-ar"
cd src-tauri
cargo check --target aarch64-linux-android --lib
# Supply-chain gate. Until this job existed the project had no vulnerability
# scanning of any kind: nothing checked the ~500-crate Rust graph or the JS
# dependencies against a CVE feed, and nothing checked that everything we
# redistribute is licence-compatible with shipping JellyTau under MIT.
#
# The first run of this found eight vulnerabilities and one unsoundness
# (bytes, four in rustls-webpki, time, two in quick-xml, rand) — all fixed by
# `cargo update`, none of which anybody had reason to run.
#
# Runs in parallel with android-check rather than after `test`: a dependency
# advisory has nothing to do with whether the tests pass, and finding out
# sooner is the point.
security:
name: Supply Chain
runs-on: linux/amd64
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Cache Rust dependencies
uses: actions/cache@v3
with:
path: |
~/.cargo/registry/index
~/.cargo/registry/cache
~/.cargo/git/db
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
restore-keys: |
${{ runner.os }}-cargo-registry-
# cargo-deny is baked into the builder image. It fetches the RustSec
# advisory database at run time — that is *data*, like the crates
# `bun install` fetches, not a toolchain install, so the 🔴 rule in
# CLAUDE.md is not in play here.
#
# Config and every documented exception live in src-tauri/deny.toml.
# Vulnerabilities and unsoundness are hard failures with no override;
# unmaintained transitive crates that have no safe upgrade (Tauri's GTK3
# stack, the unic-* tables) are ignored there by ID, each with a reason.
- name: cargo-deny (advisories, licences, bans, sources)
run: |
cd src-tauri
cargo deny check
# Advisory for now, deliberately. The Rust graph was clean after one
# update pass, so gating it costs nothing; the JS graph has not been
# audited before and a first run that fails the build teaches everyone to
# ignore this job. Promote to a hard gate once the output is empty and
# stays empty — same approach that got clippy from advisory to -D warnings.
- name: bun audit (advisory)
run: |
bun install
bun audit || echo "::warning::bun audit reported findings — advisory for now, see CLAUDE.md"
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name: Build & Release
on:
push:
tags:
- 'v*'
workflow_dispatch:
inputs:
version:
description: 'Version to build (e.g., v1.0.0)'
required: false
env:
RUST_BACKTRACE: 1
CARGO_TERM_COLOR: always
# Incremental state is never reused between CI runs -- pure disk cost.
CARGO_INCREMENTAL: 0
jobs:
test:
name: Run Tests
runs-on: linux/amd64
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Cache Rust dependencies
uses: actions/cache@v3
with:
# Registry only -- never src-tauri/target. That directory is ~16 GB and
# was cached under five separate keys, which filled the runner's 74 GB
# disk at ~1.15 GB/day (23 GB in 20 days, measured Aug 2026).
# registry/src is omitted too: cargo re-extracts it for free from
# registry/cache (155 MB of .crate tarballs vs 1.1 GB extracted).
path: |
~/.cargo/registry/index
~/.cargo/registry/cache
~/.cargo/git/db
# One shared key across every job. The old per-job keys existed to stop
# debug/release target artifacts clobbering each other; with target no
# longer cached, registry contents are target-independent, so all jobs
# want the same crates. First job to finish saves; the rest restore.
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
restore-keys: |
${{ runner.os }}-cargo-registry-
- name: Cache Node dependencies
uses: actions/cache@v3
with:
path: |
~/.bun/install/cache
node_modules
key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lock') }}
restore-keys: |
${{ runner.os }}-bun-
- name: Install dependencies
run: bun install
- name: Run frontend tests
run: |
bunx svelte-kit sync
bun run test --run
continue-on-error: false
# Same gate as build-and-test.yml. A release must not ship from a tree
# that would fail the per-commit checks. rustfmt/clippy come from the
# builder image; nothing is installed here.
- name: Check Rust formatting
run: |
cd src-tauri
cargo fmt --all -- --check
continue-on-error: false
# Advisory until the ~51 pre-existing warnings are cleared; see the longer
# note in build-and-test.yml. Tighten both to `-- -D warnings` together.
- name: Run clippy (advisory)
run: |
cd src-tauri
cargo clippy --all-targets
- name: Run Rust tests
run: bun run test:rust
continue-on-error: false
- name: Check TypeScript
run: bun run check
continue-on-error: false
build-linux:
name: Build Linux
runs-on: linux/amd64
needs: test
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Cache Rust dependencies
uses: actions/cache@v3
with:
# Registry only -- never src-tauri/target. That directory is ~16 GB and
# was cached under five separate keys, which filled the runner's 74 GB
# disk at ~1.15 GB/day (23 GB in 20 days, measured Aug 2026).
# registry/src is omitted too: cargo re-extracts it for free from
# registry/cache (155 MB of .crate tarballs vs 1.1 GB extracted).
path: |
~/.cargo/registry/index
~/.cargo/registry/cache
~/.cargo/git/db
# One shared key across every job. The old per-job keys existed to stop
# debug/release target artifacts clobbering each other; with target no
# longer cached, registry contents are target-independent, so all jobs
# want the same crates. First job to finish saves; the rest restore.
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
restore-keys: |
${{ runner.os }}-cargo-registry-
- name: Cache Node dependencies
uses: actions/cache@v3
with:
path: |
~/.bun/install/cache
node_modules
key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lock') }}
restore-keys: |
${{ runner.os }}-bun-
- name: Install dependencies
run: bun install
# The Linux job previously had no version step at all, so a tagged release
# built Linux packages from whatever version happened to be committed.
- name: Set app version from tag
run: ./scripts/set-version.sh "${GITHUB_REF#refs/tags/}"
if: startsWith(github.ref, 'refs/tags/v')
# TAURI_SKIP_UPDATER is gone: it was suppressing the updater artifacts
# (.AppImage.tar.gz + .sig) that the update manifest points at, back when
# there was no updater to feed. With the signing key present, `tauri build`
# emits and signs them.
#
# If TAURI_SIGNING_PRIVATE_KEY is ever absent the build fails loudly rather
# than quietly shipping an unsigned release that no client will accept --
# which is the behaviour we want.
# Same hazard as the Windows job: the bundle directory is never cleaned by
# cargo and the runner reuses src-tauri/target, while the copy step below
# globs bundle/deb/*.deb and friends. Windows is where this actually bit
# (v0.8.2 shipped thirteen stale installers), but only because Linux
# packaging is newer -- the glob is identical. Remove the directory so a
# stale artifact cannot exist to be copied.
- name: Clear previous bundle output
run: rm -rf src-tauri/target/release/bundle
- name: Build for Linux
run: bun run tauri build
env:
# linuxdeploy's bundled `strip` cannot parse the `.relr.dyn` section
# modern toolchains emit, and fails on every bundled library:
# strip: libzstd.so.1: unknown type [0x13] section `.relr.dyn'
# failed to bundle project `failed to run linuxdeploy`
# Ubuntu 23.10+ links with -z pack-relative-relocs by default, so this
# image hits it. Skipping strip is linuxdeploy's documented escape
# hatch; the cost is a larger AppImage. Found by building the target
# locally before tagging -- nothing in CI builds the app, so a release
# would have been the first time anyone discovered the AppImage target
# does not work.
NO_STRIP: "true"
TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
- name: Prepare Linux artifacts
run: |
mkdir -p dist/linux
# Match by extension, not by product name. Bundle filenames follow
# `productName`, so renaming the app (jellytau -> JellyTau) made the
# old `jellytau_*.deb` glob match nothing — and because the copy was
# wrapped in `if [ -f ... ]`, the artifact simply vanished from the
# release with no error. Each bundle directory holds one file.
#
# `if [ -f "dir/"*.ext ]` was also wrong on its own terms: with more
# than one match `test` gets extra arguments and fails.
#
# No `shopt -s nullglob` here: the runner executes `run:` blocks with
# POSIX sh, where shopt does not exist -- it exited 127 and killed the
# step (which is why v0.9.0 and v0.9.1 built but never published).
# Without nullglob an unmatched pattern stays literal, so test each
# candidate instead. Same POSIX-only rule as traceability-check.yml.
#
# Tauri v2 signs the .AppImage ITSELF and writes <name>.AppImage.sig
# beside it -- there is no .AppImage.tar.gz unless
# bundle.createUpdaterArtifacts is set to "v1Compatible". The updater
# downloads the same AppImage a human does and verifies that .sig, so
# both files must ship or the manifest points at a signature nobody
# can fetch.
for bundle in \
src-tauri/target/release/bundle/appimage/*.AppImage \
src-tauri/target/release/bundle/appimage/*.AppImage.sig \
src-tauri/target/release/bundle/deb/*.deb \
src-tauri/target/release/bundle/rpm/*.rpm; do
[ -e "$bundle" ] || continue
cp -v "$bundle" dist/linux/
done
# An AppImage that did not build means no updater artifact either, and
# the release notes have advertised an AppImage for months. Fail rather
# than publish a release whose manifest points at nothing.
if ! ls dist/linux/*.AppImage >/dev/null 2>&1; then
echo "::error::No AppImage produced -- check bundle.targets in tauri.conf.json"
exit 1
fi
# A release with no Linux package is a failure, not a quiet success.
if [ -z "$(ls -A dist/linux/)" ]; then
echo "::error::No Linux bundles found under src-tauri/target/release/bundle/"
exit 1
fi
ls -lah dist/linux/
- name: Upload Linux build artifact
uses: actions/upload-artifact@v3
with:
name: jellytau-linux
path: dist/linux/
retention-days: 7
build-windows:
name: Build Windows
runs-on: linux/amd64
needs: test
# Cross-compiled from Linux via the official Tauri path (MSVC + cargo-xwin),
# baked into the builder image. No toolchain installs here — the image has
# cargo-xwin, clang/clang-cl, lld, llvm, nsis and the msvc target.
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Cache Rust dependencies
uses: actions/cache@v3
with:
# Registry only -- never src-tauri/target. That directory is ~16 GB and
# was cached under five separate keys, which filled the runner's 74 GB
# disk at ~1.15 GB/day (23 GB in 20 days, measured Aug 2026).
# registry/src is omitted too: cargo re-extracts it for free from
# registry/cache (155 MB of .crate tarballs vs 1.1 GB extracted).
path: |
~/.cargo/registry/index
~/.cargo/registry/cache
~/.cargo/git/db
# One shared key across every job. The old per-job keys existed to stop
# debug/release target artifacts clobbering each other; with target no
# longer cached, registry contents are target-independent, so all jobs
# want the same crates. First job to finish saves; the rest restore.
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
restore-keys: |
${{ runner.os }}-cargo-registry-
- name: Cache Windows CRT/SDK (cargo-xwin)
uses: actions/cache@v3
with:
path: ~/.cache/cargo-xwin
# Contents track the xwin version baked into the builder image, not our
# lockfile -- keying this on Cargo.lock re-downloaded the whole SDK on
# every release bump. Bump the suffix by hand if the image's xwin moves.
key: ${{ runner.os }}-cargo-xwin-v1
- name: Cache Node dependencies
uses: actions/cache@v3
with:
path: |
~/.bun/install/cache
node_modules
key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lock') }}
restore-keys: |
${{ runner.os }}-bun-
# The tag is the single source of truth for a release version; the script
# stamps every file that carries it (package.json, tauri.conf.json,
# Cargo.toml, Cargo.lock). This step used to sed only tauri.conf.json, so
# the other three shipped whatever was committed.
- name: Set app version from tag
run: ./scripts/set-version.sh "${GITHUB_REF#refs/tags/}"
if: startsWith(github.ref, 'refs/tags/v')
- name: Build Windows (NSIS installer + exe)
run: OUTPUT_DIR="$PWD/dist/windows" WIN_BUNDLES=nsis ./scripts/build-windows-cross.sh
env:
TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
- name: List Windows artifacts
run: ls -lah dist/windows/
- name: Upload Windows build artifact
uses: actions/upload-artifact@v3
with:
name: jellytau-windows
path: dist/windows/
retention-days: 7
build-android:
name: Build Android
runs-on: linux/amd64
needs: test
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
env:
ANDROID_HOME: /opt/android-sdk
ANDROID_SDK_ROOT: /opt/android-sdk
ANDROID_NDK_HOME: /opt/android-sdk/ndk/27.0.11902837
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Cache Rust dependencies
uses: actions/cache@v3
with:
# Registry only -- never src-tauri/target. That directory is ~16 GB and
# was cached under five separate keys, which filled the runner's 74 GB
# disk at ~1.15 GB/day (23 GB in 20 days, measured Aug 2026).
# registry/src is omitted too: cargo re-extracts it for free from
# registry/cache (155 MB of .crate tarballs vs 1.1 GB extracted).
path: |
~/.cargo/registry/index
~/.cargo/registry/cache
~/.cargo/git/db
# One shared key across every job. The old per-job keys existed to stop
# debug/release target artifacts clobbering each other; with target no
# longer cached, registry contents are target-independent, so all jobs
# want the same crates. First job to finish saves; the rest restore.
key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
restore-keys: |
${{ runner.os }}-cargo-registry-
- name: Cache Node dependencies
uses: actions/cache@v3
with:
path: |
~/.bun/install/cache
node_modules
key: ${{ runner.os }}-bun-${{ hashFiles('**/bun.lock') }}
restore-keys: |
${{ runner.os }}-bun-
- name: Install dependencies
run: bun install
# Stamp before `android init`: it derives its generated project (including
# the initial versionCode) from tauri.conf.json.
- name: Set app version from tag
run: ./scripts/set-version.sh "${GITHUB_REF#refs/tags/}"
if: startsWith(github.ref, 'refs/tags/v')
- name: Initialize Android project
run: bun run tauri android init
# Re-run after init: tauri.properties only exists now, and its
# autogenerated versionCode (0.0.15 -> 15) is both tiny and NOT monotonic
# against the 1000 floor already shipped in the field. The script rewrites
# it as 1000 + major*10000 + minor*100 + patch. Runs unconditionally so
# untagged builds get a sane code too, derived from git describe.
- name: Pin a monotonic Android versionCode
run: ./scripts/set-version.sh "${GITHUB_REF#refs/tags/}"
- name: Sync custom Android sources & gradle config
run: ./scripts/sync-android-sources.sh
- name: Write signing keystore
run: |
echo "${{ secrets.ANDROID_KEYSTORE_BASE64 }}" | base64 -d > "$RUNNER_TEMP/jellytau-release.jks"
cat > src-tauri/gen/android/keystore.properties <<EOF
storeFile=$RUNNER_TEMP/jellytau-release.jks
storePassword=${{ secrets.ANDROID_KEYSTORE_PASSWORD }}
keyAlias=${{ secrets.ANDROID_KEY_ALIAS }}
keyPassword=${{ secrets.ANDROID_KEY_PASSWORD }}
EOF
# `--apk` is a boolean flag, not `--apk true`. tauri-cli took a value here
# until 2.10; from 2.11 the stray `true` is parsed as a positional and the
# command fails with "unexpected argument 'true' found" before building.
# This line and scripts/build-android.sh must agree.
- name: Build signed Android APK
run: bun run tauri android build --apk --target aarch64
- name: Collect & verify signed APK
run: |
mkdir -p dist/android
APK=$(find src-tauri/gen/android/app/build/outputs/apk -name '*-release.apk' | head -1)
if [ -z "$APK" ]; then echo "❌ No release APK produced"; exit 1; fi
cp "$APK" dist/android/jellytau-release.apk
APKSIGNER=$(find "$ANDROID_SDK_ROOT/build-tools" -name apksigner | sort -V | tail -1)
echo "🔏 Verifying signature with $APKSIGNER"
"$APKSIGNER" verify --print-certs dist/android/jellytau-release.apk
ls -lah dist/android/
- name: Upload Android build artifact
uses: actions/upload-artifact@v3
with:
name: jellytau-android
path: dist/android/
retention-days: 7
create-release:
name: Create Release
runs-on: linux/amd64
needs: [build-linux, build-windows, build-android]
if: startsWith(github.ref, 'refs/tags/v')
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: Get version from tag
id: tag_name
run: |
echo "VERSION=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
echo "RELEASE_NAME=JellyTau ${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
- name: Download Linux artifacts
uses: actions/download-artifact@v3
with:
name: jellytau-linux
path: artifacts/linux/
- name: Download Windows artifacts
uses: actions/download-artifact@v3
with:
name: jellytau-windows
path: artifacts/windows/
- name: Download Android artifacts
uses: actions/download-artifact@v3
with:
name: jellytau-android
path: artifacts/android/
# Runs before the SBOM, the checksums and the upload -- everything
# downstream describes this set of files, so a stale artifact must be
# caught before it gets hashed into SHA256SUMS and published as though it
# belonged to this release.
#
# See the script for the eight months of releases that shipped their
# predecessors' Windows installers.
- name: Verify artifacts belong to this release
run: |
./scripts/check-release-artifacts.sh \
"${{ steps.tag_name.outputs.VERSION }}" \
artifacts/linux artifacts/windows artifacts/android
# Software Bill of Materials, one per half of the app. Without it there is
# no answer to "does this release contain <vulnerable crate>?" other than
# rebuilding the tag and re-resolving it. cargo-cyclonedx is in the builder
# image; the JS side is read straight from the lockfile bun install used.
- name: Generate SBOM
run: |
set -e
mkdir -p artifacts/sbom
cd src-tauri
cargo cyclonedx --format json
find . -maxdepth 2 -name "*.cdx.json" -exec cp -v {} ../artifacts/sbom/ \;
cd ..
bun install --frozen-lockfile
bun pm ls --all > artifacts/sbom/frontend-dependencies.txt
ls -lah artifacts/sbom/
# Checksums over everything being published. A release of unsigned Linux
# and Windows binaries with no checksum gives a user no way at all to tell
# a corrupted or substituted download from a good one — and the AppImage
# and NSIS installer are both fetched over plain HTTP redirects.
#
# Written with paths relative to the asset directory so `sha256sum -c
# SHA256SUMS` works in the directory a user downloaded into.
# The update manifest. Built before the checksums so latest.json is not
# itself hashed into SHA256SUMS (it is metadata about the release, not a
# download), and after the artifacts exist so the signatures can be read.
#
# Why a dedicated `updater` branch and a raw-file URL: this Gitea serves
# /releases/download/<tag>/<asset> but returns 404 for
# /releases/latest/download/<asset>, so there is no stable "latest release"
# URL to point a client at. The gitea-pages branch is force-pushed whole by
# publish-docs.yml, so hosting the manifest there would delete it on the
# next docs build. An orphan branch that only ever contains latest.json is
# the one location both stable and ours.
- name: Build update manifest (latest.json)
id: manifest
run: |
set -e
VERSION="${{ steps.tag_name.outputs.VERSION }}"
# The manifest carries the bare version; the tag carries the v prefix.
PLAIN="${VERSION#v}"
BASE="${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/releases/download/${VERSION}"
# Tauri matches on "<os>-<arch>". We ship one desktop arch today.
APPIMAGE_SIG=""
NSIS_SIG=""
APPIMAGE_URL=""
NSIS_URL=""
# Tauri v2 signs the AppImage itself; <name>.AppImage.sig sits beside
# it. Verified against a real signed build before tagging -- the
# v1-style .AppImage.tar.gz is never produced with
# createUpdaterArtifacts: true.
for f in artifacts/linux/*.AppImage; do
[ -e "$f" ] || continue
case "$f" in *.sig) continue;; esac
APPIMAGE_URL="${BASE}/$(basename "$f")"
[ -e "$f.sig" ] && APPIMAGE_SIG="$(cat "$f.sig")"
done
for f in artifacts/windows/*-setup.exe; do
[ -e "$f" ] || continue
NSIS_URL="${BASE}/$(basename "$f")"
[ -e "$f.sig" ] && NSIS_SIG="$(cat "$f.sig")"
done
# A manifest with an empty signature is worse than no manifest: the
# client rejects it after downloading the whole payload.
if [ -z "$APPIMAGE_SIG" ] || [ -z "$NSIS_SIG" ]; then
echo "::error::Missing updater signature (appimage='$APPIMAGE_SIG' nsis='$NSIS_SIG')."
echo "::error::Check that TAURI_SIGNING_PRIVATE_KEY reached both desktop build jobs."
exit 1
fi
# What the in-app update prompt shows. Same reviewed source as the
# release body -- the CHANGELOG section for this version, not the
# traceability draft.
NOTES="$(awk -v ver="## $VERSION" '$0==ver{f=1;next} /^## /{if(f)exit} f' CHANGELOG.md | head -c 4000)"
[ -n "$NOTES" ] || NOTES="See the release page for details."
jq -n \
--arg version "$PLAIN" \
--arg notes "$NOTES" \
--arg pub_date "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
--arg lin_sig "$APPIMAGE_SIG" --arg lin_url "$APPIMAGE_URL" \
--arg win_sig "$NSIS_SIG" --arg win_url "$NSIS_URL" \
'{
version: $version,
notes: $notes,
pub_date: $pub_date,
platforms: {
"linux-x86_64": { signature: $lin_sig, url: $lin_url },
"windows-x86_64": { signature: $win_sig, url: $win_url }
}
}' > latest.json
echo "📄 latest.json:"
cat latest.json
- name: Publish latest.json to the updater branch
env:
GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
AUTO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
set -e
TOKEN="${GITEA_TOKEN:-$AUTO_TOKEN}"
HOST="$(echo "$GITHUB_SERVER_URL" | sed -E 's#^https?://##')"
REMOTE="https://oauth2:${TOKEN}@${HOST}/${GITHUB_REPOSITORY}.git"
# Built in a scratch repo, NOT by switching branches in the checkout.
# `git checkout --orphan` here would leave every later step standing on
# a one-commit branch -- and the next step but one runs
# `bun run release:notes`, which resolves a commit range against the
# real history and would silently produce nothing.
WORK="$RUNNER_TEMP/updater-branch"
rm -rf "$WORK"
mkdir -p "$WORK"
cp latest.json "$WORK/latest.json"
cd "$WORK"
git init -q
git config user.email "ci@jellytau"
git config user.name "JellyTau CI"
git add latest.json
git commit -qm "chore(updater): manifest for ${{ steps.tag_name.outputs.VERSION }}"
echo "🚀 Force-pushing update manifest to the updater branch"
# Force-push: the branch holds exactly one file and no history worth
# keeping, same shape as publish-docs.yml's gitea-pages.
git push -f "$REMOTE" HEAD:refs/heads/updater
echo "✅ Served at ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/raw/branch/updater/latest.json"
- name: Generate SHA256SUMS
run: |
set -e
mkdir -p artifacts/release
find artifacts/linux artifacts/windows artifacts/android -type f -exec cp -v {} artifacts/release/ \;
cd artifacts/release
sha256sum * > SHA256SUMS
echo "🔐 Published checksums:"
cat SHA256SUMS
# Verify what we just wrote, so a broken checksum file fails the
# release rather than shipping and failing for users.
sha256sum -c SHA256SUMS
# The published body is the hand-written CHANGELOG.md section for this
# version. `bun run release:notes` is printed into the job log as a
# drafting aid, but is NOT published: CLAUDE.md is explicit that its
# output is "a reviewed draft, not a final changelog", and publishing it
# unreviewed proved the point -- a range containing a repo-wide prettier
# sweep resolved to nearly the whole requirement matrix and produced notes
# claiming one release had added the entire application.
#
# A missing CHANGELOG section fails the release. A release whose notes say
# nothing is worse than one that waits for a maintainer to write two
# sentences, and the checklist already requires that entry.
- name: Prepare release notes
id: release_notes
run: |
set -e
VERSION="${{ steps.tag_name.outputs.VERSION }}"
echo "📋 Traceability draft (for reference; not published):"
bun run release:notes 2>/dev/null || echo "(could not derive a draft)"
echo ""
# The section between this version's heading and the next one.
CHANGES=$(awk -v ver="## $VERSION" '$0==ver{f=1;next} /^## /{if(f)exit} f' CHANGELOG.md)
if [ -z "$(echo "$CHANGES" | tr -d '[:space:]')" ]; then
echo "::error::CHANGELOG.md has no '## $VERSION' section."
echo "::error::Add the entry for this version and re-tag; see docs/release-checklist.md."
exit 1
fi
{
echo "$CHANGES"
echo ""
echo "### Downloads"
echo ""
echo "| Platform | File |"
echo "|---|---|"
echo "| Linux (portable) | \`*.AppImage\` — \`chmod +x\` and run |"
echo "| Linux (Debian/Ubuntu) | \`*.deb\` — \`sudo dpkg -i\` |"
echo "| Linux (Fedora/openSUSE) | \`*.rpm\` — \`sudo rpm -i\` |"
echo "| Windows | \`*-setup.exe\` (NSIS). Unsigned — SmartScreen may warn on first run. |"
echo "| Android | \`*.apk\` sideload, or \`*.aab\` for Play Console |"
echo ""
echo "Desktop builds check for updates from here and can install a new"
echo "version in place, verifying its signature first."
echo ""
echo "### Verifying your download"
echo ""
echo "\`\`\`bash"
echo "sha256sum -c SHA256SUMS"
echo "\`\`\`"
echo ""
echo "\`SHA256SUMS\` covers every file in this release. An SBOM"
echo "(\`*.cdx.json\`, \`frontend-dependencies.txt\`) lists what went into it."
echo ""
echo "### Requirements"
echo ""
echo "- **Linux:** 64-bit, GLIBC 2.29+"
echo "- **Windows:** 64-bit Windows 10 or later"
echo "- **Android:** 8.0 or later, ~50 MB free"
echo ""
echo "---"
echo "Report a problem: ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/issues"
} > release_notes.md
echo "📝 Release notes:"
cat release_notes.md
- name: Publish Gitea release & upload assets
env:
# GITEA_TOKEN (a PAT) is preferred; falls back to the auto-provided token.
GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
AUTO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
set -e
command -v jq >/dev/null || { echo "❌ jq is required on the runner"; exit 1; }
VERSION="${{ steps.tag_name.outputs.VERSION }}"
API="${GITHUB_SERVER_URL}/api/v1"
REPO="${GITHUB_REPOSITORY}"
TOKEN="${GITEA_TOKEN:-$AUTO_TOKEN}"
case "$VERSION" in *rc*|*beta*|*alpha*) PRE=true;; *) PRE=false;; esac
PAYLOAD=$(jq -n \
--arg tag "$VERSION" \
--arg name "JellyTau $VERSION" \
--rawfile body release_notes.md \
--argjson pre "$PRE" \
'{tag_name:$tag, name:$name, body:$body, draft:false, prerelease:$pre}')
echo "📦 Creating release $VERSION on $REPO"
# -f drops on HTTP error; capture status so an existing release (409) is handled gracefully.
HTTP=$(curl -sS -o resp.json -w '%{http_code}' -X POST "$API/repos/$REPO/releases" \
-H "Authorization: token $TOKEN" \
-H "Content-Type: application/json" \
-d "$PAYLOAD")
if [ "$HTTP" = "201" ]; then
RELEASE_ID=$(jq -r '.id' resp.json)
elif [ "$HTTP" = "409" ]; then
echo "️ Release $VERSION already exists; fetching its id to upload assets"
RELEASE_ID=$(curl -fsS "$API/repos/$REPO/releases/tags/$VERSION" \
-H "Authorization: token $TOKEN" | jq -r '.id')
else
echo "❌ Failed to create release (HTTP $HTTP):"; cat resp.json; exit 1
fi
echo "Release id=$RELEASE_ID"
# artifacts/release/ holds a copy of every platform artifact plus the
# SHA256SUMS generated over exactly that set, so the checksums describe
# precisely what is uploaded. artifacts/sbom/ rides along.
for f in artifacts/release/* artifacts/sbom/*; do
[ -f "$f" ] || continue
echo "⬆️ Uploading $(basename "$f")"
curl -fsS -X POST \
"$API/repos/$REPO/releases/$RELEASE_ID/assets?name=$(basename "$f")" \
-H "Authorization: token $TOKEN" \
-F "attachment=@$f" >/dev/null
done
echo "✅ Release $VERSION published with assets"
-123
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@@ -1,123 +0,0 @@
name: Publish Documentation
# Renders the markdown docs (docs/*.md) into an mdBook site, builds the Rust
# API reference with cargo doc, and force-pushes the combined output to the
# orphan `gitea-pages` branch that the Gitea Pages server serves.
#
# The published matrix is regenerated during the build, so it is never stale.
on:
push:
branches:
- master
concurrency:
# Only one docs publish at a time; a newer push supersedes an in-flight run.
group: publish-docs
cancel-in-progress: true
jobs:
publish-docs:
name: Build & publish docs to gitea-pages
runs-on: linux/amd64
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
steps:
- name: Checkout code
uses: actions/checkout@v4
with:
fetch-depth: 0
# bun is baked into jellytau-builder (see Dockerfile.builder); no setup-bun
# action needed — fetching it stalls on this Gitea runner.
- name: Install dependencies
run: bun install
# mdBook is baked into jellytau-builder (Dockerfile.builder, MDBOOK_VERSION).
# It used to be curl'd from GitHub releases straight into /usr/local/bin
# right here, which was a toolchain install at job time — the exact thing
# CLAUDE.md's 🔴 rule forbids — and made every docs publish depend on
# GitHub's CDN answering. To move the version, bump it in the image.
- name: Confirm mdBook is present
run: mdbook --version
- name: Regenerate traceability matrix (keep published copy current)
run: bun run traces:markdown
- name: Assemble mdBook sources
run: |
set -e
# mdBook's src is docs/. Drop in the SUMMARY and the generated
# intro + API redirect pages (build artifacts, not committed).
cp docs-site/SUMMARY.md docs/SUMMARY.md
cat > docs/README.md <<'EOF'
# JellyTau Documentation
Cross-platform Jellyfin client — business logic in a Rust backend,
SvelteKit + TypeScript frontend, talking over Tauri v2 IPC.
- **[Requirements Specification](requirements.md)** — user, integration, and development requirements.
- **[Traceability Matrix](traceability.md)** — generated map from requirements to code (regenerated on every publish).
- **[Architecture](architecture/README.md)** — backend, frontend, data flow, platform backends.
- **[Rust API Reference](api/index.html)** — rustdoc for the `src-tauri` backend.
_This site is published automatically from `master` by the `publish-docs` CI job._
EOF
cat > docs/api-redirect.md <<'EOF'
# Rust API Reference
The full backend API reference is generated by `cargo doc` (rustdoc).
👉 **[Open the Rust API Reference](api/index.html)**
EOF
- name: Build mdBook site
run: mdbook build docs-site --dest-dir "$GITHUB_WORKSPACE/site"
- name: Build Rust API docs (cargo doc)
working-directory: src-tauri
# --no-deps keeps it to our own crate (fast, focused); document private
# items so internal modules/commands appear.
run: |
cargo doc --no-deps --document-private-items
# The backend modules/commands live in the LIB crate (jellytau_lib);
# the bin crate (jellytau) is a near-empty shim. Land on the lib.
echo '<meta http-equiv="refresh" content="0; url=jellytau_lib/index.html">' \
> target/doc/index.html
- name: Assemble published output
run: |
set -e
mkdir -p "$GITHUB_WORKSPACE/site/api"
cp -r src-tauri/target/doc/. "$GITHUB_WORKSPACE/site/api/"
# Disable Jekyll processing on the pages branch.
touch "$GITHUB_WORKSPACE/site/.nojekyll"
ls -la "$GITHUB_WORKSPACE/site"
- name: Push to gitea-pages branch
env:
# PAT preferred; falls back to the auto-provided token (same pattern
# as build-release.yml).
GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
AUTO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
set -e
TOKEN="${GITEA_TOKEN:-$AUTO_TOKEN}"
REPO="${GITHUB_REPOSITORY}"
HOST="$(echo "$GITHUB_SERVER_URL" | sed -E 's#^https?://##')"
REMOTE="https://oauth2:${TOKEN}@${HOST}/${REPO}.git"
cd "$GITHUB_WORKSPACE/site"
git init -q
git config user.name "gitea-actions"
git config user.email "actions@gitea.tourolle.paris"
git checkout -q -b gitea-pages
git add -A
# POSIX sh has no ${VAR::N} substring expansion — cut instead.
SHORT_SHA="$(printf '%s' "$GITHUB_SHA" | cut -c1-8)"
git commit -q -m "docs: publish site from ${SHORT_SHA}"
echo "🚀 Force-pushing to gitea-pages"
git push -f "$REMOTE" gitea-pages
-187
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@@ -1,187 +0,0 @@
name: Traceability Validation
on:
push:
branches:
- master
- main
- develop
pull_request:
branches:
- master
- main
- develop
jobs:
validate-traces:
runs-on: linux/amd64
name: Check Requirement Traces
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:2026.08.1
steps:
- name: Checkout repository
uses: actions/checkout@v4
with:
fetch-depth: 0
# bun is baked into jellytau-builder (see Dockerfile.builder); no setup-bun
# action needed — fetching it stalls on this Gitea runner.
- name: Install dependencies
run: bun install
- name: Extract traces
run: |
echo "🔍 Extracting requirement traces..."
bun run traces:json > traces-report.json
- name: Validate traces
run: |
set -e
echo "📊 Validating requirement traceability..."
echo ""
# Denominators come from docs/requirements.md at run time — NEVER
# hardcode them here. This step previously divided by frozen literals
# (UR/39, IR/24, DR/48, JA/3, total 114) while the file had grown to
# 211 requirements, so it reported 158% coverage and the threshold
# below could never trip. See docs/traceability-ci.md.
TOTAL_TRACES=$(jq '.totalTraces' traces-report.json)
COVERED=$(jq '.coverage.covered' traces-report.json)
TOTAL_REQS=$(jq '.coverage.total' traces-report.json)
COVERAGE=$(jq '.coverage.percent' traces-report.json)
echo "✅ TRACES Found: $TOTAL_TRACES"
echo ""
echo "📋 Coverage Summary (traced / defined):"
for T in UR IR DR JA; do
TRACED=$(jq --arg t "$T" '[.byType[$t][] | select(. != null)] | length' traces-report.json)
DEFINED=$(jq --arg t "$T" '.defined[$t]' traces-report.json)
echo " $T: $TRACED / $DEFINED"
done
echo ""
echo "📈 Overall Coverage: $COVERED / $TOTAL_REQS ($COVERAGE%)"
echo ""
# Traced IDs that requirements.md does not define (typo, or a deleted
# requirement). These do not count toward coverage.
ORPHANED=$(jq -c '.coverage.orphaned' traces-report.json)
if [ "$ORPHANED" != "[]" ]; then
echo "⚠️ Traced but not defined in requirements.md: $ORPHANED"
echo ""
fi
# A ratio above 100% means the computation is broken — the exact
# condition that hid the stale-denominator bug. Fail loudly.
if [ "$COVERAGE" -gt 100 ]; then
echo "❌ ERROR: Coverage ($COVERAGE%) exceeds 100% — the gate is miscomputing."
echo " Orphaned IDs: $ORPHANED"
exit 1
fi
# Minimum coverage. RATCHET POLICY: this number only ever goes UP.
#
# It sits a few points under the coverage actually achieved, so a real
# regression trips it. It was 50 while true coverage was 86%, which
# meant nearly half the matrix could rot before CI said a word — a
# gate that cannot fail is not a gate.
#
# When coverage rises durably, raise this to just under the new figure
# (`bun run traces:coverage` prints it). Never lower it to make a red
# build pass — add the missing TRACES comments instead.
#
# Keep in sync with MIN_COVERAGE_PERCENT in scripts/extract-traces.ts;
# scripts/extract-traces.test.ts fails if the two drift apart.
MIN_THRESHOLD=89
if [ "$COVERAGE" -lt "$MIN_THRESHOLD" ]; then
echo "❌ ERROR: Coverage ($COVERAGE%) is below minimum threshold ($MIN_THRESHOLD%)"
exit 1
fi
echo "✅ Coverage is acceptable ($COVERAGE% >= $MIN_THRESHOLD%)"
# Every ID named by a TRACES comment must be defined as a table row in
# docs/requirements.md. The extractor used to accept any well-formed ID
# silently, so a typo or a rename that missed a call site passed CI
# unnoticed (DR-189 and UT-188 lived in three source files, defined
# nowhere, for months). This covers UT/IT too, which the coverage
# orphan list above deliberately ignores.
- name: Validate requirement IDs
run: bun run traces:validate
- name: Check modified files
if: github.event_name == 'pull_request'
run: |
echo "🔍 Checking modified files for traces..."
echo ""
# Get changed files
CHANGED=$(git diff --name-only origin/${{ github.base_ref }}...HEAD | grep -E '\.(ts|tsx|svelte|rs)$' || echo "")
if [ -z "$CHANGED" ]; then
echo "✅ No TypeScript/Rust files changed"
exit 0
fi
echo "📝 Changed files:"
echo "$CHANGED" | sed 's/^/ /'
echo ""
# Check each file
# Pipe into the loop instead of a here-string (<<<) so this step works
# under POSIX sh/dash, not just bash. Use `case` instead of `[[ == ]]`
# for the same reason. The loop runs in a subshell (so a counter var
# wouldn't survive), so we record warnings in a temp file and count it
# afterwards.
MISSING_FILE=$(mktemp)
echo "$CHANGED" | while IFS= read -r file; do
# Skip test files
case "$file" in
*.test.*) continue ;;
esac
if [ -f "$file" ]; then
if ! grep -q "TRACES:" "$file"; then
echo "⚠️ Missing TRACES: $file"
echo "$file" >> "$MISSING_FILE"
fi
fi
done
MISSING_TRACES=$(wc -l < "$MISSING_FILE" | tr -d ' ')
rm -f "$MISSING_FILE"
if [ "$MISSING_TRACES" -gt 0 ]; then
echo ""
echo "📝 Recommendation: Add TRACES comments to new/modified code"
echo " Format: // TRACES: UR-001, UR-002 | DR-003"
echo ""
echo "💡 For more info, see: scripts/README.md"
fi
- name: Generate full report
if: always()
run: |
echo "📄 Generating full traceability report..."
bun run traces:markdown
- name: Display report summary
if: always()
run: |
echo ""
echo "📊 Full Report Generated"
echo "📁 Location: docs/traceability.md"
echo ""
head -50 docs/traceability.md || true
- name: Save artifacts
if: always()
uses: actions/upload-artifact@v3
with:
name: traceability-reports
path: |
traces-report.json
docs/traceability.md
retention-days: 30
-67
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@@ -1,67 +0,0 @@
# OS files
.DS_Store
Thumbs.db
# Node.js
node_modules
npm-debug.log*
yarn-debug.log*
yarn-error.log*
pnpm-debug.log*
# Use bun (see packageManager in package.json); ignore other package managers' lockfiles
package-lock.json
yarn.lock
pnpm-lock.yaml
# Build output
/build
/dist
/.svelte-kit
/package
# Environment variables
.env
.env.*
!.env.example
# Testing
coverage
.nyc_output
*.lcov
# Vitest
.vitest
# Vite
vite.config.js.timestamp-*
vite.config.ts.timestamp-*
# IDE
.idea
.vscode
*.swp
*.swo
*~
# Logs
logs
*.log
# Android signing keystore (NEVER commit)
android-keystore/
# Local machine-specific Android NDK toolchain paths (do not commit)
src-tauri/.cargo/config.toml
# Docs site build artifacts (generated by the publish-docs CI job into docs/)
/docs/SUMMARY.md
/docs/README.md
/docs/api-redirect.md
/docs-site/book/
# Arch packaging build artifacts (vendored cargo cache, makepkg workdir, output package)
/.cargo-arch/
/packaging/arch/pkg/
/packaging/arch/src/
/packaging/arch/*.pkg.tar.zst
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@@ -1,35 +0,0 @@
# Dependencies & build output
node_modules/
.svelte-kit/
# Scratch worktrees (git-ignored) — full checkouts of this repo
.claude/
build/
dist/
coverage/
/package/
# Rust backend (rustfmt owns this tree)
src-tauri/
# Generated by tauri-specta — regenerated on every Rust build, never hand-edited
src/lib/api/bindings.ts
# Lockfiles and generated data
bun.lock
*.lcov
# Generated docs (built by the publish-docs CI job)
docs/SUMMARY.md
docs/README.md
docs/api-redirect.md
docs-site/book/
# Hand-maintained Markdown (docs/, CHANGELOG.md, README.md, ...). Prettier
# reflows tables and wrapped prose, which would swamp real doc diffs and fight
# the hand-tuned layout of docs/requirements.md and docs/traceability.md
# (the latter is generated by scripts/extract-traces.ts).
**/*.md
# CI workflow YAML — formatting churn here would obscure real pipeline diffs.
.gitea/
-20
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@@ -1,20 +0,0 @@
{
"$schema": "https://json.schemastore.org/prettierrc",
"printWidth": 100,
"tabWidth": 2,
"useTabs": false,
"semi": true,
"singleQuote": false,
"quoteProps": "as-needed",
"trailingComma": "all",
"bracketSpacing": true,
"arrowParens": "always",
"endOfLine": "lf",
"plugins": ["prettier-plugin-svelte"],
"overrides": [
{
"files": "*.svelte",
"options": { "parser": "svelte" }
}
]
}
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# JellyTau
A cross-platform Jellyfin client. Business logic lives in a Rust backend
(`src-tauri/`); a SvelteKit + TypeScript frontend (`src/`) handles presentation
and talks to it over Tauri v2 IPC. Targets **Linux** (libmpv, WebKitGTK HTML5
`<video>` for transcoded playback) and **Android** (ExoPlayer).
Package manager is **bun**.
## Build / Run / Test
All routine tasks go through `package.json` scripts and helper scripts in
`scripts/`:
```bash
bun install # install deps
bun run dev # vite dev server (frontend)
bun run tauri dev # run the desktop app
bun run check # svelte-check (types)
bun run test # vitest (frontend unit/integration)
bun run test:rust # cargo test (scripts/test-rust.sh)
bun run test:all # full suite (scripts/test-all.sh)
bun run lint # eslint (src/, scripts/, root configs)
bun run format:check # prettier
# Android — canonical entry points (see scripts/):
bun run android:build # debug APK
bun run android:build:release # release APK
bun run android:deploy # install to connected device
bun run android:dev # build + deploy
bun run android:logs # logcat
```
The **debug** build type carries `applicationIdSuffix ".debug"`, so
`com.dtourolle.jellytau.debug` ("JellyTau Debug") installs *alongside* a release
build with its own data dir — never uninstall the release app to test a debug
one. `./scripts/build-and-deploy.sh release --device --debug` puts an
R8-minified *release* build in that same slot, signed with the local debug
keystore, for validating minification without the real key. Only the
applicationId is suffixed; Kotlin classes stay in the `namespace` package
`com.dtourolle.jellytau`, so JNI lookups and R8 keep rules are unaffected. See
[README_ANDROID_BUILD.md](src-tauri/android/README_ANDROID_BUILD.md).
CI runs on **Gitea Actions** (`.gitea/workflows/`), not GitHub. Use the `gh` CLI
only against the mirror if one exists; the canonical remote is
`gitea.tourolle.paris`.
> **🔴 CI installs no system tools.** Never add an `apt-get`, `rustup`,
> `sdkmanager`, mingw/nsis, or any other *toolchain/system-package* install to a
> CI workflow step. Every build, test, and packaging **tool** must already live
> in the Docker image the job runs in — the unified builder (`Dockerfile.builder`
> → `gitea.tourolle.paris/dtourolle/jellytau-builder`) for Android/Linux/Windows,
> or `Dockerfile.arch` for Arch. If a job needs a tool the image lacks, **add it
> to the image, rebuild + push it** (`scripts/build-builder-image.sh`), and use
> it from CI — do not install it at job time. This keeps builds reproducible and
> fast, and is why the packaging stages are thin `FROM ${BUILDER_IMAGE}` layers.
>
> `bun install` (fetching the project's own JS deps per the lockfile) is **not**
> a violation — that's project dependencies, not a toolchain. The rule is about
> system tools, not npm/bun/cargo *packages* declared by the project.
## Before Committing
- Frontend: `bun run check`, `bun run test`, `bun run format:check` and
`bun run lint` (0 errors; the warning count is a CI ratchet) must pass.
- Rust: `cd src-tauri && cargo fmt` then `cargo clippy`, plus `bun run test:rust`.
- **Boundary**: `bun run check:boundary` must pass — no domain taxonomy (Jellyfin
item-type category sets) leaked into the frontend. See below.
- **Traceability**: new requirement-implementing code must carry a `// TRACES:`
comment (see below).
- **Android source edits**: edit `src-tauri/android/src` (the canonical tree),
then run `scripts/sync-android-sources.sh` to sync into the `gen/` tree.
Never edit the generated `gen/` sources directly.
## Traceability (TRACES)
This project practices requirement-driven development: code that implements a
requirement is tagged with a `TRACES:` comment linking it to requirement IDs, and
an extraction tool builds the traceability matrix. **When you add or change code
that implements a requirement, add/update its TRACES comment.** Internal helpers
and requirement-less code stay untraced.
Format — `// TRACES: <URs> | <DRs> | <tests>`, e.g.:
```rust
/// TRACES: UR-005 | DR-001
pub enum PlayerState { }
```
```typescript
// TRACES: UR-005, UR-026 | DR-029
export function autoplayNextEpisode() { }
```
ID types: **UR** user requirement, **IR** integration, **DR** development, **JA**
Jellyfin API, **UT** unit test, **IT** integration test. Requirements are defined
in [docs/requirements.md](docs/requirements.md); the generated matrix is
[docs/traceability.md](docs/traceability.md).
Tooling:
```bash
bun run traces # extract traces (default format)
bun run traces:json # JSON — e.g. | jq '.byType' or '.requirements."UR-005"'
bun run traces:markdown # regenerate docs/traceability.md
bun run traces:coverage # coverage gate — exits non-zero below the threshold
bun run traces:validate # dangling-ID gate — every traced ID must be defined
git diff --name-only | xargs grep -L "TRACES:" # find untraced changed files
```
Every ID a `TRACES:` comment names must exist as a table row in
`docs/requirements.md``traces:validate` fails otherwise, so a typo or a
rename that missed a call site can no longer pass silently.
**CI is Gitea Actions** (`.gitea/workflows/`, remote `gitea.tourolle.paris`), not
GitHub. `traceability-check.yml` fails the build if coverage drops below
**89%** (`MIN_THRESHOLD`, a *ratchet* — raise it as coverage climbs, never lower
it to make a build pass) or if any traced ID is undefined; `build-and-test.yml`
runs frontend tests **with coverage thresholds**, `bun run check`, `format:check`,
a `--max-warnings` eslint ratchet, Rust tests, `cargo fmt --check`, `cargo clippy
-D warnings`, and an Android `cargo check`. See
[docs/traceability-ci.md](docs/traceability-ci.md)
and [docs/traces-quick-ref.md](docs/traces-quick-ref.md).
### Traces drive release notes
Prefer traceability over raw commit subjects when writing release notes for
[docs/release-checklist.md](docs/release-checklist.md). Raw `git log` subjects are
noisy; the TRACES graph gives a semantic summary of *what capabilities* the
release touched.
```bash
bun run release:notes # <latest tag>..HEAD
bun run release:notes v0.0.15..HEAD # explicit range
```
[scripts/release-notes.ts](scripts/release-notes.ts) resolves a commit range's
changed files → their `TRACES:` IDs → descriptions in
[docs/requirements.md](docs/requirements.md), then groups **UR** into *Features*
and **DR/IR** into *Improvements* (deduped, so many commits touching one
requirement collapse to one line). It also lists changed files that carry no
TRACES so nothing is silently dropped — those still need a manual line. Treat the
output as a reviewed draft, not a final changelog.
## Architecture
- **Rust backend** (`src-tauri/src/`) — all business logic: auth, catalog,
sessions, downloads, offline cache, playback control. Commands grouped by
domain in `src-tauri/src/commands/` (`auth.rs`, `catalog.rs`, `player/`,
`download/`, `offline.rs`, `sessions.rs`, …).
- **Svelte frontend** (`src/`) — presentation only. Stores in
`src/lib/stores/`, API wrappers in `src/lib/api/`, components in
`src/lib/components/`.
- **Playback layers** — Linux uses libmpv for direct playback and a WebKitGTK
HTML5 `<video>` element for HLS-transcoded (h264) streams; Android uses
ExoPlayer with a foreground media service + `MediaSessionCompat`.
- **tauri-specta** generates TypeScript bindings and typed events from the Rust
command/event definitions (registered via the Builder in `src-tauri/src/lib.rs`).
**Read the architecture docs before making structural changes** — they are the
canonical, maintained source; this file only summarizes. See
[docs/architecture/README.md](docs/architecture/README.md) and:
| Doc | Contents |
|-----|----------|
| [01-rust-backend.md](docs/architecture/01-rust-backend.md) | Player/session state machines, playback mode, queue, commands |
| [02-svelte-frontend.md](docs/architecture/02-svelte-frontend.md) | Stores, repository architecture, MiniPlayer, autoplay, nav guard |
| [03-data-flow.md](docs/architecture/03-data-flow.md) | Cache-first query flow, playback initiation, mode transfer |
| [04-type-sync-and-threading.md](docs/architecture/04-type-sync-and-threading.md) | **Rust↔TS type sync, the IPC camelCase convention + param table, locking** |
| [05-platform-backends.md](docs/architecture/05-platform-backends.md) | MpvBackend (Linux), ExoPlayerBackend (Android), MediaSession, HTML5 adapter |
| [06-downloads-and-offline.md](docs/architecture/06-downloads-and-offline.md) | Download manager/worker, smart cache, offline commands |
| [07-connectivity.md](docs/architecture/07-connectivity.md) | HTTP retry, ConnectivityMonitor, reachability model |
| [08-database-design.md](docs/architecture/08-database-design.md) | Tables, relationships, key queries |
| [09-security.md](docs/architecture/09-security.md) | Token storage, secure storage, network security |
Release process lives in [docs/release-checklist.md](docs/release-checklist.md)
and [docs/build/build-release.md](docs/build/build-release.md).
### Core principles (from the architecture docs)
- **Playback state is one-directional.** The player (ExoPlayer on Android, MPV on
Linux, session poller in remote mode) is the **authoritative source** of state
— position, pause, seeking, rate, track changes. The Svelte UI, OS
`MediaSession`/lockscreen, and MPRIS are **consumers**; they reflect what the
player reports and never determine it.
- **Unified player boundary.** UI controls playback *only* through the frontend
facade `src/lib/player/index.ts` (`playerController`) — never by calling
`commands.player*` directly. Webview HTML5 `<video>` reports its state back
into Rust via `src/lib/player/html5Adapter.ts` and the `player_report_*`
commands, so the controller stays the single source of truth in both native
and HTML5 modes.
- **Reachability from real traffic.** Server online/offline is derived from the
outcome of actual repository requests (reported to `ConnectivityMonitor`), not
a side-channel poller. The `/System/Info/Public` probe runs *only while
offline*, as a recovery detector.
- **Poison-tolerant locking.** Access shared `std::sync` state via the
`MutexSafe`/`RwLockSafe` helpers in `utils/lock.rs`, which recover a poisoned
lock instead of cascading a panic across the player.
- **Graceful backend init.** If a native player backend fails to initialize, the
app falls back to a no-op backend and emits `backend-init-failed` rather than
crashing.
- **Domain vocabulary lives in Rust.** The frontend is presentation-only and must
not encode Jellyfin's *taxonomy* — e.g. the set of item types that defines a
category like "Music". Send an opaque scope/enum across the boundary and let the
backend expand it. Single-type presentation (`itemType: "Movie"`, "this page
shows albums") is fine; a *category → set of types* mapping in `src/` is a leak.
`bun run check:boundary` is the tripwire; the real gate is the spec's layer
assignment. The canonical example lives in Rust:
`SearchScope::item_types()` in `repository/types.rs` expands an opaque scope the
frontend sends. See [scoped-search-boundary.md](docs/specs/scoped-search-boundary.md)
for the incident this rule came from — note the tripwire missed that leak for
months because the mapping was assigned to a named const rather than written
inline at the query, so **a green `check:boundary` is not proof**; it flags
item-type array literals only, not run-time-built sets or `switch`/`||`
taxonomy.
## Writing specs
New feature specs go in [docs/specs/](docs/specs/) — see its
[README](docs/specs/README.md) for the index and what is already built.
**Start from
[SPEC-TEMPLATE.md](docs/specs/SPEC-TEMPLATE.md)** — its "Layer assignment" section
forces each piece of *logic* to be placed in the correct layer (Rust = domain,
frontend = presentation) *with a reason*, which is what prevents boundary leaks.
Before accepting a spec, run it past
[SPEC-REVIEW-CHECKLIST.md](docs/specs/SPEC-REVIEW-CHECKLIST.md). Do **not** frame
a spec around "no Rust changes required" — correct layer placement is the goal,
not minimal backend churn.
### 🔴 A spec becomes an architecture doc when it ships
`docs/specs/` holds **only work that has not shipped**. There is no "Implemented"
resting state for a spec file: when the last acceptance criterion is met, fold
the design into [docs/architecture/](docs/architecture/README.md) and **delete
the spec in the same commit**.
This is not tidying. A directory that mixes promises with descriptions makes both
unreliable — you cannot tell from a file whether it describes the build or
proposes a change to it, and stale specs then quietly disagree with the code
while reading as authority.
- **Every spec names its destination up front** — the template's "Destination on
completion" line. Deciding at spec time which architecture doc will absorb it
is a design check in itself: a feature that fits no existing doc is usually a
feature whose layer assignment is unclear.
- **Carry the reasoning, not the plan.** The architecture doc gets the *why* a
future change still needs — invariants, rejected alternatives that would be
re-attempted, the defect a piece of code exists to prevent. Acceptance
criteria, phase breakdowns and migration steps die with the spec; git history
keeps them.
- **Deferred work outlives its spec.** Anything the spec listed as out-of-scope
and still worth doing goes beside the code it concerns, not into the void.
- **Rewrite inbound references before deleting** — source comments and CI
scripts cite spec paths, and `check-doc-links` only sees markdown.
- **Partially implemented is a real status.** A spec stays until *all* of it
ships, with the header naming what is left.
## Conventions
### Rust Backend
- Use `#[tauri::command]` for all IPC handlers.
- Prefer `async` commands for I/O-bound work.
- Return `Result<T, String>` from commands (the established convention here).
- Use `tauri::State<>` for shared state.
- Group related commands in domain modules under `commands/`.
- Use official Tauri plugins before writing custom native code.
### Frontend
- Use `invoke<T>()` from `@tauri-apps/api/core`, or the tauri-specta bindings.
- Define TS types matching the Rust structs; prefer the generated bindings.
- Handle IPC errors with try/catch.
- Use `@tauri-apps/api/path` for paths (never hardcode).
- Use `@tauri-apps/api/event` for backend→frontend events.
### 🔴 IPC parameter naming (Tauri v2)
The command **name** must match the Rust function name exactly
(`invoke("player_play_queue", …)`). But **parameter names do NOT** — Tauri v2's
`#[tauri::command]` macro auto-converts snake_case Rust params to **camelCase**
on the frontend:
```rust
#[tauri::command]
pub async fn cmd(repository_handle: String) { }
```
```typescript
await invoke("cmd", { repositoryHandle: "…" }); // camelCase, auto-converted
```
Nested struct fields need `#[serde(rename_all = "camelCase")]`; tagged unions use
`#[serde(tag = "type")]` and both sides must match the tag. Note: tauri-specta
tagged responses keep the Rust field names as-is (e.g. `new_url`, not `newUrl`).
### Events
- Backend events use **kebab-case** names (`download-event`, `search-event`).
- Emit from Rust via `emit(...)`; consume on the frontend via
`@tauri-apps/api/event` or the tauri-specta typed event bindings.
### Security
- Declare minimum permissions in `src-tauri/capabilities/`.
- Keep the CSP restrictive in `tauri.conf.json`.
- Validate all inputs in Rust command handlers.
- **Never read credentials** (tokens/keys from keyring, env, or stores) without
asking the user first.
## Gotchas (hard-won)
- **Never call sync/blocking APIs from event callbacks** that can re-enter the
player or hold a lock — it deadlocks. On Android, bind a locked
`AutoplayDecision` to a `let` *before* matching; a tokio `MutexGuard` held in
the `match` scrutinee deadlocks the `AdvanceToNext` arm.
- **VideoPlayer native mode**: no lifecycle calls after an `await` in `onMount`
(it flips to HTML5 mode and breaks Android seek).
- **Transcoded resume/seek**: `get_video_stream_url` must return the HLS
`master.m3u8`, not `stream.mp4`, or transcoded playback never starts.
- **Downloads** cap at 3 concurrent; the backend pump auto-starts pending rows.
Don't loop `startDownload` from the frontend.
- **Parallel Claude sessions**: the user may run concurrent sessions. Unexpected
file changes may be another session — check `git diff` before "repairing".
## Testing
### 🔴 Bug fixes: failing test FIRST, then the fix
When fixing a bug, **write a test that reproduces it and watch it fail before
touching the fix.** Red → green, in that order:
1. Write a test that exercises the broken behavior and **run it — it must fail**,
proving the test actually catches the bug (a test that passes before the fix
proves nothing).
2. Apply the fix.
3. Re-run — the test now passes, and so does the rest of the suite.
Never fix first and backfill the test afterward: a test written against
already-fixed code can pass for the wrong reason and silently fails to guard the
regression. If the logic is buried in a component, extract the pure part into a
plain `.ts` module (e.g. `episodeStrip.ts`) so it can be unit-tested — the same
pattern as `TrackList.logic.test.ts`.
```bash
# Rust
cd src-tauri && cargo test
cd src-tauri && cargo test test_name # single test
# Frontend
bun run test
bun run test:coverage
# Tauri IPC param-naming integration tests (guard the camelCase rule):
bun run test -- tauriIntegration.test.ts
```
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# Code of Conduct
## The short version
Be decent to people. Assume the person you are talking to is acting in good
faith and knows things you do not.
## What that means here
**Expected:**
- Criticise code, decisions and ideas — not the people who wrote them.
- Accept that "no" is a complete answer. This is a small project with a
maintainer who has finite time; a declined feature request is not a slight.
- Give people room to be new. Everyone was once confused by Tauri's IPC.
- Assume a bug report is someone trying to help, even when it arrives terse or
frustrated.
**Not accepted:**
- Harassment, personal attacks, or demeaning remarks — including about someone's
identity, background, or level of experience.
- Sexualised language or imagery, and unwelcome attention of any kind.
- Publishing someone's private information without their permission.
- Persistently derailing discussions, or badgering people who have already
answered you.
## Scope
This applies in the issue tracker, pull requests, commit messages and any other
project space, and to anyone taking part — maintainer included.
## Reporting
Email **duncan@tourolle.paris**. Reports are read by the maintainer and handled
privately.
Responses range from a quiet word through to removing comments or blocking an
account, depending on what happened. If a report concerns the maintainer, and
that makes reporting to them pointless, you are free to say so publicly — a
project this size has no separate committee to appeal to, and pretending
otherwise would be dishonest.
## Attribution
Adapted in spirit from the [Contributor Covenant](https://www.contributor-covenant.org),
shortened to what a single-maintainer project can actually honour.
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# Contributing to JellyTau
Thanks for looking. This file is the short version of how the project is built
and what has to be true before a change lands. The long version lives in
[CLAUDE.md](CLAUDE.md) and [docs/architecture/](docs/architecture/README.md),
which are maintained rather than decorative — read them before a structural
change.
## Getting set up
Package manager is **bun**. You will also need a Rust toolchain (the exact
version is pinned in [src-tauri/rust-toolchain.toml](src-tauri/rust-toolchain.toml)
— rustup honours it automatically) and the Tauri Linux dependencies.
```bash
bun install
bun run hooks:install # do this once: it enables the pre-commit gates
bun run tauri dev
```
`hooks:install` points `core.hooksPath` at [scripts/hooks/](scripts/hooks/), so
hook updates arrive with a `git pull` instead of needing a re-install.
## What has to pass
Everything below runs in CI, and the fast half runs in the pre-commit hook. None
of it is advisory:
```bash
bun run check # svelte-check — 0 errors
bun run test # vitest
bun run format:check # prettier
bun run lint # eslint — 0 errors; the warning count is a ratchet
bun run check:boundary # no Jellyfin taxonomy in the frontend
bun run test:rust # cargo test
cd src-tauri && cargo fmt --all && cargo clippy --all-targets -- -D warnings
cd src-tauri && cargo deny check # advisories, licences, bans, sources
```
`bun run test:all` runs the whole set.
Several of these are **ratchets** — a number that only ever moves in the
improving direction:
| Ratchet | Where | Rule |
|---|---|---|
| eslint `--max-warnings` | [.gitea/workflows/build-and-test.yml](.gitea/workflows/build-and-test.yml) | only goes down |
| Coverage thresholds | [vitest.config.ts](vitest.config.ts) | only go up |
| Traceability coverage | [.gitea/workflows/traceability-check.yml](.gitea/workflows/traceability-check.yml) | only goes up |
Never relax one to make a build pass. Fix the thing it caught.
## The two rules that surprise people
**1. Bug fixes start with a failing test.** Write a test that reproduces the bug
and *watch it fail* before you touch the fix. A test written against
already-fixed code can pass for the wrong reason and guards nothing. If the logic
is trapped in a component, extract the pure part into a plain `.ts` module and
test that — see `episodeStrip.ts` or `TrackList.logic.ts` for the pattern.
**2. Domain vocabulary lives in Rust.** The frontend is presentation-only. It
must not encode Jellyfin's *taxonomy* — for example, the set of item types that
makes up a category like "Music". Send an opaque scope across the IPC boundary
and let the backend expand it. `bun run check:boundary` is a tripwire, not a
proof: it only flags item-type array literals, so a green run does not mean you
are clear. [docs/specs/scoped-search-boundary.md](docs/specs/scoped-search-boundary.md)
describes the leak that made this a rule.
## Traceability
Code that implements a requirement carries a `TRACES:` comment naming the
requirement IDs, and a tool builds the matrix from those comments:
```rust
/// TRACES: UR-005 | DR-001
```
Every ID must exist as a row in [docs/requirements.md](docs/requirements.md) —
`bun run traces:validate` fails on a typo or a stale rename. Internal helpers and
requirement-less code stay untraced; do not sprinkle IDs to raise the number.
If you add a requirement, add its row. If you implement one, tag the code.
## Commits and pull requests
- Conventional-commit subjects: `fix(player): …`, `feat(updater): …`, `ci: …`.
- Explain **why** in the body, not what the diff already shows. The commit log
is the main record of why things are the way they are here, and it is used to
draft release notes.
- One concern per commit. A formatting sweep and a behaviour change in the same
commit is unreviewable.
- Rebase rather than merge-commit onto `master`.
## Specs
New features start from [docs/specs/SPEC-TEMPLATE.md](docs/specs/SPEC-TEMPLATE.md).
Its "Layer assignment" section is the point: each piece of logic gets placed in
Rust or the frontend *with a reason*. Review against
[docs/specs/SPEC-REVIEW-CHECKLIST.md](docs/specs/SPEC-REVIEW-CHECKLIST.md). Do
not frame a spec around "no Rust changes required" — correct placement is the
goal, not minimal backend churn.
## CI
CI is **Gitea Actions** (`.gitea/workflows/`), not GitHub.
🔴 **CI installs no system tools.** Every build, test and packaging tool must
already be in the Docker builder image. If a job needs a tool the image lacks,
add it to [Dockerfile.builder](Dockerfile.builder), rebuild and push the image,
and pin the new tag — do not `apt-get` it at job time. Details in
[docs/build/ci-operations.md](docs/build/ci-operations.md).
Fetching the project's own declared dependencies (`bun install`, cargo crates,
an advisory database) is not a toolchain install and is fine.
## Reporting bugs
Use the issue templates. For anything involving playback, include what the
platform was, whether the media was streaming or downloaded, and whether it was
transcoding — those three answers determine which of several code paths you were
actually on.
Security issues go to [SECURITY.md](SECURITY.md), not the tracker.
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# Multi-stage build for JellyTau - Tauri Jellyfin client
#
# The desktop packaging stages (desktop-linux-build, windows-cross) build FROM
# the unified registry builder image, which carries every packaging tool. Declared
# here (before the first FROM) so it's in scope for those stages' FROM lines.
# Override for local iteration: --build-arg BUILDER_IMAGE=jellytau-builder:latest
ARG BUILDER_IMAGE=gitea.tourolle.paris/dtourolle/jellytau-builder:latest
FROM ubuntu:24.04 AS builder
ENV DEBIAN_FRONTEND=noninteractive \
ANDROID_HOME=/opt/android-sdk \
NDK_VERSION=27.0.11902837 \
SDK_VERSION=34 \
RUST_BACKTRACE=1 \
PATH="/root/.bun/bin:/root/.cargo/bin:$PATH" \
CARGO_HOME=/root/.cargo
# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
# Build essentials
build-essential \
curl \
wget \
git \
ca-certificates \
unzip \
# JDK for Android
openjdk-17-jdk-headless \
# Android build tools
android-sdk-platform-tools \
# Additional development tools
pkg-config \
libssl-dev \
libclang-dev \
llvm-dev \
# Tauri Linux desktop dependencies (needed for `cargo test` on the host target)
libglib2.0-dev \
libgtk-3-dev \
libwebkit2gtk-4.1-dev \
libjavascriptcoregtk-4.1-dev \
libsoup-3.0-dev \
librsvg2-dev \
libayatana-appindicator3-dev \
# mpv player library (linked via libmpv-sys)
libmpv-dev \
&& rm -rf /var/lib/apt/lists/*
# Install Node.js 20.x from NodeSource
RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
apt-get install -y --no-install-recommends nodejs && \
rm -rf /var/lib/apt/lists/*
# Install Bun
RUN curl -fsSL https://bun.sh/install | bash && \
ln -s /root/.bun/bin/bun /usr/local/bin/bun
# Install Rust using rustup
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y && \
. $HOME/.cargo/env && \
rustup target add aarch64-linux-android && \
rustup target add armv7-linux-androideabi && \
rustup target add x86_64-linux-android
# Setup Android SDK
RUN mkdir -p $ANDROID_HOME && \
mkdir -p /root/.android && \
echo '### User Sources for `android` cmd line tool ###' > /root/.android/repositories.cfg && \
echo 'count=0' >> /root/.android/repositories.cfg
# Download and setup Android Command Line Tools
RUN wget -q https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip -O /tmp/cmdline-tools.zip && \
unzip -q /tmp/cmdline-tools.zip -d $ANDROID_HOME && \
rm /tmp/cmdline-tools.zip && \
mkdir -p $ANDROID_HOME/cmdline-tools/latest && \
mv $ANDROID_HOME/cmdline-tools/* $ANDROID_HOME/cmdline-tools/latest/ 2>/dev/null || true
# Setup Android SDK components
RUN $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager --sdk_root=$ANDROID_HOME \
"platforms;android-$SDK_VERSION" \
"build-tools;34.0.0" \
"ndk;$NDK_VERSION" \
--channel=0 2>&1 | grep -v "Warning" || true
# Set NDK environment variable
ENV NDK_HOME=$ANDROID_HOME/ndk/$NDK_VERSION
# Create working directory
WORKDIR /app
# Copy project files
COPY . .
# Install Node.js dependencies
RUN bun install
# Install Rust dependencies
RUN cd src-tauri && cargo fetch && cd ..
# Build stage - Tests
FROM builder AS test
WORKDIR /app
RUN echo "Running tests..." && \
bunx svelte-kit sync && \
bun run test && \
cd src-tauri && cargo test && cd .. && \
echo "All tests passed!"
# Build stage - APK
FROM builder AS android-build
WORKDIR /app
RUN cd src-tauri && cargo fetch && cd .. && \
echo "Building Android APK..." && \
bun run build && \
bun run tauri android build --apk true && \
echo "APK build complete!"
# Desktop packaging stages build FROM the unified registry builder image (see the
# BUILDER_IMAGE ARG at the top), which already carries every packaging tool
# (rpm/file for Linux, cargo-xwin + nsis + the x86_64-pc-windows-msvc rust
# target for Windows). ONE source of dependency truth, shared with CI — no
# per-stage apt/rustup here.
#
# NOTE: Windows uses the MSVC target via cargo-xwin, NOT mingw/GNU — the GNU
# toolchain cannot bundle an NSIS installer from Linux. See
# scripts/build-windows-cross.sh.
# Linux desktop packaging environment (deb + rpm; Arch is Dockerfile.arch).
# Thin layer over the builder — the actual build runs at container-run time on
# the bind-mounted source (see docker-compose.yml / scripts/build-desktop-linux.sh),
# matching the `dev` service model. Run standalone with:
# docker run --rm -v "$PWD:/app" -v "$PWD/dist:/app/dist" <img> \
# bash -c "OUTPUT_DIR=/app/dist scripts/build-desktop-linux.sh"
FROM ${BUILDER_IMAGE} AS desktop-linux-build
WORKDIR /app
CMD ["bash", "-c", "OUTPUT_DIR=/app/dist scripts/build-desktop-linux.sh"]
# Windows cross-compile environment (MSVC target via cargo-xwin). Video works via
# WebView2 and audio via the webview <audio> backend; NSIS installer is produced
# from Linux by cargo-xwin. Default bundles NSIS; override WIN_BUNDLES=none for
# exe-only. Build runs at container-run time like above.
FROM ${BUILDER_IMAGE} AS windows-cross
WORKDIR /app
CMD ["bash", "-c", "OUTPUT_DIR=/app/dist WIN_BUNDLES=${WIN_BUNDLES:-nsis} scripts/build-windows-cross.sh"]
# Final output stage
FROM ubuntu:24.04 AS final
RUN apt-get update && apt-get install -y --no-install-recommends \
android-sdk-platform-tools \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY --from=android-build /app/src-tauri/gen/android/app/build/outputs/apk /app/apk
VOLUME ["/app/apk"]
CMD ["/bin/bash", "-c", "echo 'APK files are available in /app/apk' && ls -lh /app/apk/"]
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# JellyTau Arch Linux package builder.
#
# Tauri has no pacman bundle target, so we build a real .pkg.tar.zst with makepkg
# from packaging/arch/PKGBUILD. makepkg refuses to run as root, so we create a
# non-root `builder` user with passwordless sudo (for `makepkg -s` pacman calls).
#
# docker build -f Dockerfile.arch -t jellytau-arch .
# docker run --rm -v "$PWD/dist:/out" jellytau-arch
FROM archlinux:latest
RUN pacman -Syu --noconfirm \
base-devel git sudo \
rust cargo nodejs \
webkit2gtk-4.1 mpv gtk3 libayatana-appindicator \
libsoup3 pkgconf openssl \
&& pacman -Scc --noconfirm
# Bun is not in the official repos; install the upstream binary.
RUN curl -fsSL https://bun.sh/install | bash && \
ln -s /root/.bun/bin/bun /usr/local/bin/bun
# Non-root build user with passwordless sudo for makepkg's dependency step.
RUN useradd -m builder && \
echo 'builder ALL=(ALL) NOPASSWD: ALL' > /etc/sudoers.d/builder && \
ln -sf /root/.bun/bin/bun /usr/local/bin/bun
WORKDIR /app
COPY . .
RUN chown -R builder:builder /app
USER builder
ENV OUTPUT_DIR=/out
RUN mkdir -p /out
VOLUME ["/out"]
# Default: build the package. Output lands in /out (mount it to collect the pkg).
CMD ["bash", "-c", "OUTPUT_DIR=/out scripts/build-arch.sh"]
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# JellyTau Builder Image
# Pre-built image with all dependencies for building, testing, and packaging:
# - Android APK (SDK/NDK), Linux desktop (deb/rpm),
# - Windows cross via the official Tauri path: MSVC target + cargo-xwin + NSIS
# Arch packages build in a separate archlinux image (Dockerfile.arch) since
# makepkg is Arch-specific.
# Push to your registry: docker build -f Dockerfile.builder -t gitea.tourolle.paris/dtourolle/jellytau-builder:latest .
FROM ubuntu:24.04
ENV DEBIAN_FRONTEND=noninteractive \
ANDROID_HOME=/opt/android-sdk \
NDK_VERSION=27.0.11902837 \
SDK_VERSION=36 \
BUILD_TOOLS_VERSION=35.0.0 \
RUST_BACKTRACE=1 \
PATH="/root/.bun/bin:/root/.cargo/bin:$PATH" \
CARGO_HOME=/root/.cargo
# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
build-essential \
curl \
wget \
git \
ca-certificates \
unzip \
jq \
openjdk-17-jdk-headless \
pkg-config \
libssl-dev \
libclang-dev \
llvm-dev \
# Tauri Linux desktop dependencies (needed for `cargo test` on the host target)
libglib2.0-dev \
libgtk-3-dev \
libwebkit2gtk-4.1-dev \
libjavascriptcoregtk-4.1-dev \
libsoup-3.0-dev \
librsvg2-dev \
libayatana-appindicator3-dev \
# mpv player library (linked via libmpv-sys)
libmpv-dev \
&& rm -rf /var/lib/apt/lists/*
# Install Node.js 20.x from NodeSource
RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
apt-get install -y --no-install-recommends nodejs && \
rm -rf /var/lib/apt/lists/*
# Install Bun
RUN curl -fsSL https://bun.sh/install | bash && \
ln -s /root/.bun/bin/bun /usr/local/bin/bun
# Install Rust using rustup, pinned to an exact release.
#
# 🔴 RUST_VERSION must equal `channel` in src-tauri/rust-toolchain.toml.
#
# The two are a pair. rust-toolchain.toml is what makes a developer's `cargo
# clippy` agree with CI's; this line is what makes the image already contain that
# toolchain. If they drift, rustup silently downloads the pinned version the
# first time cargo runs inside a job — a toolchain install at job time, which
# CLAUDE.md's "🔴 CI installs no system tools" rule forbids (and which costs
# ~1min plus a network dependency on every build).
#
# 🔴 Changing this line does NOT change CI on its own: the image must be
# rebuilt and pushed (`scripts/build-builder-image.sh`) before the new pin is
# authoritative. Bump rust-toolchain.toml and this line together, rebuild, push,
# then merge.
#
# Was: `sh -s -- -y` (latest stable, whatever it happened to be on rebuild day).
ENV RUST_VERSION=1.97.1
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | \
sh -s -- -y --profile minimal --default-toolchain "$RUST_VERSION" && \
. $HOME/.cargo/env && \
rustup default "$RUST_VERSION" && \
rustup target add aarch64-linux-android && \
rustup target add armv7-linux-androideabi && \
rustup target add x86_64-linux-android && \
rustup component add rustfmt clippy && \
rustc --version && \
cargo clippy --version
# Setup Android SDK
RUN mkdir -p $ANDROID_HOME && \
mkdir -p /root/.android && \
echo '### User Sources for `android` cmd line tool ###' > /root/.android/repositories.cfg && \
echo 'count=0' >> /root/.android/repositories.cfg
# Download and setup Android Command Line Tools
RUN wget -q https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip -O /tmp/cmdline-tools.zip && \
unzip -q /tmp/cmdline-tools.zip -d $ANDROID_HOME && \
rm /tmp/cmdline-tools.zip && \
mkdir -p $ANDROID_HOME/cmdline-tools/latest && \
mv $ANDROID_HOME/cmdline-tools/* $ANDROID_HOME/cmdline-tools/latest/ 2>/dev/null || true
# Accept all SDK licenses up front so Gradle can install/use components non-interactively
RUN yes | $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager --sdk_root=$ANDROID_HOME --licenses > /dev/null
# Install Android SDK components (must match the compileSdk/targetSdk in the generated Gradle project)
RUN $ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager --sdk_root=$ANDROID_HOME \
"platform-tools" \
"platforms;android-$SDK_VERSION" \
"build-tools;$BUILD_TOOLS_VERSION" \
"ndk;$NDK_VERSION" \
--channel=0 2>&1 | grep -v "Warning" || true
# Set NDK environment variable
ENV NDK_HOME=$ANDROID_HOME/ndk/$NDK_VERSION
# Gradle distribution. `tauri android init` regenerates gen/android with a
# wrapper pointing at services.gradle.org, so every Android job would otherwise
# download ~130MB of Gradle at build time — slow, and a hard failure when the
# CDN hiccups ("Unexpected end of file from server"). Ship the distribution in
# the image instead; scripts/sync-android-sources.sh repoints the regenerated
# wrapper at this local copy. Keep GRADLE_VERSION in sync with the version
# Tauri's generated wrapper requests.
ENV GRADLE_VERSION=8.14.3 \
GRADLE_HOME=/opt/gradle/gradle-8.14.3
RUN mkdir -p /opt/gradle/dist && \
wget -q "https://services.gradle.org/distributions/gradle-${GRADLE_VERSION}-bin.zip" \
-O "/opt/gradle/dist/gradle-${GRADLE_VERSION}-bin.zip" && \
unzip -q "/opt/gradle/dist/gradle-${GRADLE_VERSION}-bin.zip" -d /opt/gradle && \
"$GRADLE_HOME/bin/gradle" --version
ENV PATH="$GRADLE_HOME/bin:$PATH"
# ---------------------------------------------------------------------------
# Desktop packaging tools — kept in a trailing layer ON PURPOSE so that adding
# or changing a packaging tool doesn't invalidate the expensive apt/rust/Android
# layers above (a tool tweak becomes a ~1-2 min rebuild, not ~15). Covers Linux
# (deb/rpm) and Windows cross (MSVC via cargo-xwin + NSIS).
RUN apt-get update && apt-get install -y --no-install-recommends \
# Linux desktop packaging: rpmbuild for the .rpm bundle (deb needs nothing extra)
rpm \
file \
# Windows cross-compile (official Tauri path: MSVC target via cargo-xwin).
# clang provides clang-cl, the MSVC-compatible C compiler cc-rs uses to build
# C deps (bundled sqlite, ring, ...); lld = linker; llvm = llvm-lib/ar etc;
# nsis = installer generator.
clang \
lld \
llvm \
nsis \
# AppImage bundling. linuxdeploy embeds xdg-open into the AppImage and
# aborts the whole bundle if it is missing:
# failed to bundle project: xdg-open binary not found
# It is present on most desktop distros, which is why the AppImage built on
# a developer machine and failed here. desktop-file-utils and zsync are the
# other two linuxdeploy commonly wants (desktop-file-validate, and zsync for
# delta updates), added together so a missing one does not cost another
# image rebuild and another failed release build.
xdg-utils \
desktop-file-utils \
zsync \
&& rm -rf /var/lib/apt/lists/* \
# Ubuntu's clang package ships clang but NOT the clang-cl alias that cc-rs
# invokes for MSVC targets. clang-cl is the same binary in MSVC-compat mode,
# so provide it as a symlink.
&& ln -sf /usr/bin/clang /usr/local/bin/clang-cl
# Windows rust target + cargo-xwin (downloads the MSVC CRT/SDK at build time).
RUN . $HOME/.cargo/env && \
rustup target add x86_64-pc-windows-msvc && \
cargo install --locked cargo-xwin
# ---------------------------------------------------------------------------
# Supply-chain and docs tooling.
#
# cargo-deny — advisories/licences/bans/sources gate (src-tauri/deny.toml),
# run by the `security` job. It fetches the RustSec advisory
# database at run time; that is *data*, not a toolchain, so it
# does not breach the no-installs-in-CI rule.
# cargo-cyclonedx — SBOM for the Rust half of a release.
# mdbook — builds the docs site. It used to be curl'd from GitHub
# releases *inside* the job (publish-docs.yml), which was both a
# breach of that rule and a hard dependency on GitHub's CDN
# being up at publish time. Pinned to the version that job used.
ENV MDBOOK_VERSION=v0.4.40
RUN . $HOME/.cargo/env && \
cargo install --locked cargo-deny cargo-cyclonedx && \
wget -q "https://github.com/rust-lang/mdBook/releases/download/${MDBOOK_VERSION}/mdbook-${MDBOOK_VERSION}-x86_64-unknown-linux-gnu.tar.gz" \
-O /tmp/mdbook.tar.gz && \
tar -xzf /tmp/mdbook.tar.gz -C /usr/local/bin && \
rm /tmp/mdbook.tar.gz && \
cargo deny --version && \
cargo cyclonedx --version && \
mdbook --version
WORKDIR /app
ENTRYPOINT ["/bin/bash"]
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MIT License
Copyright (c) 2026 Duncan Tourolle
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
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<h1 align="center">
<img src="docs/assets/logo.png" alt="JellyTau logo" width="120" /><br />
JellyTau
</h1>
A cross-platform Jellyfin client built with Tauri, SvelteKit, and TypeScript.
Business logic lives in a Rust backend; a UI-rich Svelte frontend handles
presentation and talks to it over Tauri's IPC. Targets Linux (libmpv) and
Android (ExoPlayer).
## Getting Started
This project uses [bun](https://bun.sh) as its package manager.
```bash
# Activate the Rust environment (fish shell)
source "$HOME/.cargo/env.fish"
# Install dependencies
bun install
# Run in development
bun run tauri dev
# Type-check the frontend
bun run check
# Build for Linux
bun run tauri build
# Build for Android
bun run tauri android build
```
For the full set of build, test, and Android helper scripts, see
[scripts/README.md](scripts/README.md).
## Documentation
| Topic | Location |
|-------|----------|
| Architecture overview & subsystem docs | [docs/architecture/](docs/architecture/) |
| Requirements, traceability & technical debt | [docs/requirements.md](docs/requirements.md) |
| Build & release process | [docs/build/build-release.md](docs/build/build-release.md) |
| Docker builds | [docs/build/docker.md](docs/build/docker.md) |
| Traceability tooling & CI | [docs/traceability.md](docs/traceability.md), [docs/traceability-ci.md](docs/traceability-ci.md) |
| Release checklist | [docs/release-checklist.md](docs/release-checklist.md) |
| UX flows | [docs/ux-flows.md](docs/ux-flows.md) |
| CI operations (builder image, secrets, runner) | [docs/build/ci-operations.md](docs/build/ci-operations.md) |
## Contributing
[CONTRIBUTING.md](CONTRIBUTING.md) covers the setup, the gates a change has to
pass, and the two rules that catch people out (bug fixes start with a failing
test; Jellyfin's taxonomy stays in Rust). Please also read the
[Code of Conduct](CODE_OF_CONDUCT.md).
Found a security problem? Do not open an issue — see [SECURITY.md](SECURITY.md).
## Verifying a download
Every release publishes `SHA256SUMS` covering all of its artifacts, plus an SBOM
of what went into the build:
```bash
sha256sum -c SHA256SUMS
```
Desktop builds update themselves from Settings → Updates, verifying each payload
against JellyTau's signing key before installing. Android installs are handled by
the system installer, so the app links to the releases page instead.
## Recommended IDE Setup
[VS Code](https://code.visualstudio.com/) +
[Svelte](https://marketplace.visualstudio.com/items?itemName=svelte.svelte-vscode) +
[Tauri](https://marketplace.visualstudio.com/items?itemName=tauri-apps.tauri-vscode) +
[rust-analyzer](https://marketplace.visualstudio.com/items?itemName=rust-lang.rust-analyzer).
## License
MIT
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@@ -1,60 +0,0 @@
# Security Policy
## Reporting a vulnerability
Email **duncan@tourolle.paris** with `[JellyTau security]` in the subject.
Please do **not** open a public issue for a vulnerability — JellyTau handles
Jellyfin credentials and media, and an unfixed issue in a public tracker is an
advisory for everyone running it.
Include what you have: what the problem is, how to reproduce it, the version and
platform, and what you think an attacker could do with it. A rough report is
worth more than a polished one that never gets sent.
You can expect an acknowledgement within a week. If a fix is warranted it will
ship in the next release, and you will be credited in the release notes unless
you would rather not be.
## Supported versions
JellyTau is a single-maintainer project without long-term support branches.
**Only the latest release receives fixes.** Desktop builds can update themselves
(Settings → Updates); on Android, install the latest APK from the releases page.
## What is in scope
The application and its build pipeline:
- The Tauri backend (`src-tauri/`) and the Svelte frontend (`src/`)
- Credential storage — the system keyring and its encrypted-file fallback
- The Android player service and its JNI bridge
- The loopback media server used for downloaded playback
- The release pipeline: artifact signing, the update manifest, the builder image
**Out of scope:** vulnerabilities in Jellyfin itself (report those to the
Jellyfin project), and issues that require an already-compromised device or a
malicious server the user deliberately configured and trusted.
## What the project already does
Not a guarantee, but so you know what has been considered:
- **Credentials** never go in plaintext config: the system keyring is used where
available, with an AES-GCM encrypted file as fallback (see
[docs/architecture/09-security.md](docs/architecture/09-security.md)).
- **The webview runs under a restrictive CSP**, and the asset protocol is scoped
to the thumbnail cache directory only.
- **Path confinement** is enforced on the cache and download roots — a
server-supplied id cannot decide where a file lands (DR-210, DR-211).
- **Queries and URLs bind or encode their inputs** rather than interpolating
them (DR-212).
- **Dependencies are scanned on every build** by `cargo deny` against the RustSec
advisory database, and licence-checked against an allow-list (DR-216).
- **Releases carry `SHA256SUMS` and an SBOM**, so you can verify a download and
find out what went into it.
- **Desktop updates are signature-verified** against a key held only in CI before
anything is installed (DR-217).
Windows installers are **not** Authenticode-signed — SmartScreen will warn on
first run. That is a cost and identity problem, not an oversight; verify the
download against `SHA256SUMS` instead.
-860
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@@ -1,860 +0,0 @@
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"lockfileVersion": 1,
"configVersion": 1,
"workspaces": {
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}
}
-114
View File
@@ -1,114 +0,0 @@
version: "3.8"
services:
# Test service - runs tests only
test:
build:
context: .
dockerfile: Dockerfile
target: test
container_name: jellytau-test
volumes:
- .:/app
environment:
- RUST_BACKTRACE=1
command: bash -c "bun run test && cd src-tauri && cargo test && cd .. && echo 'All tests passed!'"
# Android build service - builds APK after tests pass
android-build:
build:
context: .
dockerfile: Dockerfile
target: android-build
container_name: jellytau-android-build
volumes:
- .:/app
- android-cache:/root/.cargo
- android-bun-cache:/root/.bun
environment:
- RUST_BACKTRACE=1
- ANDROID_HOME=/opt/android-sdk
depends_on:
- test
ports:
- "5172:5172" # In case you want to run dev server
# Linux desktop packages - deb + rpm + pacman into ./dist
desktop-linux-build:
build:
context: .
dockerfile: Dockerfile
target: desktop-linux-build
args:
# Defaults to the registry builder (Dockerfile's ARG). Point at a locally
# built builder with: BUILDER_IMAGE=jellytau-builder:latest docker compose ...
BUILDER_IMAGE: ${BUILDER_IMAGE:-gitea.tourolle.paris/dtourolle/jellytau-builder:latest}
container_name: jellytau-desktop-linux-build
volumes:
- .:/app
- cargo-cache:/root/.cargo
- bun-cache:/root/.bun
environment:
- RUST_BACKTRACE=1
- OUTPUT_DIR=/app/dist
command: bash -c "OUTPUT_DIR=/app/dist scripts/build-desktop-linux.sh"
# Arch Linux package (.pkg.tar.zst via makepkg) into ./dist
arch-build:
build:
context: .
dockerfile: Dockerfile.arch
container_name: jellytau-arch-build
volumes:
- ./dist:/out
environment:
- RUST_BACKTRACE=1
- OUTPUT_DIR=/out
# Windows cross-compile (MSVC via cargo-xwin). Emits NSIS installer + .exe to
# ./dist. Override WIN_BUNDLES=none for exe-only.
windows-cross:
build:
context: .
dockerfile: Dockerfile
target: windows-cross
args:
BUILDER_IMAGE: ${BUILDER_IMAGE:-gitea.tourolle.paris/dtourolle/jellytau-builder:latest}
container_name: jellytau-windows-cross
volumes:
- .:/app
- cargo-cache:/root/.cargo
- bun-cache:/root/.bun
environment:
- RUST_BACKTRACE=1
- OUTPUT_DIR=/app/dist
- WIN_BUNDLES=${WIN_BUNDLES:-nsis}
command: bash -c "OUTPUT_DIR=/app/dist WIN_BUNDLES=${WIN_BUNDLES:-nsis} scripts/build-windows-cross.sh"
# Development container - for interactive development
dev:
build:
context: .
dockerfile: Dockerfile
target: builder
container_name: jellytau-dev
volumes:
- .:/app
- cargo-cache:/root/.cargo
- bun-cache:/root/.bun
- node-modules:/app/node_modules
environment:
- RUST_BACKTRACE=1
- ANDROID_HOME=/opt/android-sdk
- NDK_HOME=/opt/android-sdk/ndk/27.0.11902837
working_dir: /app
stdin_open: true
tty: true
command: /bin/bash
volumes:
cargo-cache:
bun-cache:
android-cache:
android-bun-cache:
node-modules:
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@@ -1,61 +0,0 @@
# Summary
[Introduction](README.md)
# Requirements & Traceability
- [Requirements Specification](requirements.md)
- [Traceability Matrix](traceability.md)
- [Traceability CI](traceability-ci.md)
- [Traces Quick Reference](traces-quick-ref.md)
# Architecture
- [Overview](architecture/README.md)
- [Rust Backend](architecture/01-rust-backend.md)
- [Svelte Frontend](architecture/02-svelte-frontend.md)
- [Data Flow](architecture/03-data-flow.md)
- [Type Sync & Threading](architecture/04-type-sync-and-threading.md)
- [Platform Backends](architecture/05-platform-backends.md)
- [Downloads & Offline](architecture/06-downloads-and-offline.md)
- [Connectivity](architecture/07-connectivity.md)
- [Database Design](architecture/08-database-design.md)
- [Security](architecture/09-security.md)
# UX
- [UX Flows](ux-flows.md)
# Specs — Pending Work
- [Specs Index](specs/README.md)
- [Spec Template](specs/SPEC-TEMPLATE.md)
- [Spec Review Checklist](specs/SPEC-REVIEW-CHECKLIST.md)
- [Playback Backend Unification](specs/playback-backend-unification.md)
- [Linux Native Video Spike](specs/linux-native-video-spike.md)
- [Backend-Owned Stream Selection](specs/backend-owned-stream-selection.md)
- [Player Facade Enforcement](specs/player-facade-enforcement.md)
- [Windows Native Audio Backend](specs/windows-native-audio-backend.md)
- [libmpv2 Migration](specs/libmpv2-migration.md)
- [Read-Through Media Cache](specs/read-through-media-cache.md)
- [Scoped Search](specs/scoped-search.md)
- [Scoped Search Boundary](specs/scoped-search-boundary.md)
- [Scoped Search Boundary — Implementation](specs/scoped-search-boundary-implementation.md)
- [Frontend Domain Model](specs/frontend-domain-model.md)
- [Desktop Native Video](specs/desktop-native-video.md)
- [Build Provenance](specs/build-provenance.md)
# Build & Release
- [Build & Release](build/build-release.md)
- [Release Checklist](release-checklist.md)
- [Native Player Verification](native-player-verification.md)
- [Desktop Packaging](build/build-desktop-packages.md)
- [Windows Build](build/build-windows.md)
- [Defect Windows](defect-windows.md)
- [Docker](build/docker.md)
- [Builder Image](build/build-builder-image.md)
---
[Rust API Reference (rustdoc)](api-redirect.md)
-25
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# mdBook config for the published JellyTau documentation site.
# The book's `src` is the repo `docs/` directory (see [build] below); this file
# and SUMMARY.md live in docs-site/ to avoid cluttering docs/. The publish-docs
# CI job copies SUMMARY.md into docs/ at build time, renders, and pushes the
# result (plus the rustdoc API under /api/) to the orphan `gitea-pages` branch.
[book]
title = "JellyTau Documentation"
description = "Requirements, traceability, and architecture for the JellyTau Jellyfin client."
authors = ["Duncan Tourolle"]
language = "en"
# Sources live in the repo docs/ dir (one level up from this book root).
src = "../docs"
[output.html]
default-theme = "navy"
preferred-dark-theme = "navy"
git-repository-url = "https://gitea.tourolle.paris/dtourolle/jellytau"
edit-url-template = "https://gitea.tourolle.paris/dtourolle/jellytau/_edit/master/docs/{path}"
[output.html.fold]
enable = true
level = 1
[output.html.search]
enable = true
-857
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@@ -1,857 +0,0 @@
# Rust Backend Architecture
**Location**: `src-tauri/src/`
## Media Session State Machine
**Location**: `src-tauri/src/player/session.rs`
The media session tracks the high-level playback context (what kind of media is being consumed) and persists beyond individual playback states. This enables persistent UI (miniplayer for audio) and proper transitions between content types.
**Architecture Note:** The session manager is a separate app-level state manager (not inside PlayerController), coordinated by the commands layer. This maintains clean separation of concerns.
```mermaid
stateDiagram-v2
[*] --> Idle
Idle --> AudioActive : play_queue(audio)
Idle --> MovieActive : play_item(movie)
Idle --> TvShowActive : play_item(episode)
state "Audio Session" as AudioSession {
[*] --> AudioActive
AudioActive --> AudioInactive : playback_ended
AudioInactive --> AudioActive : resume/play
AudioActive --> AudioActive : next/previous
}
state "Movie Session" as MovieSession {
[*] --> MovieActive
MovieActive --> MovieInactive : playback_ended
MovieInactive --> MovieActive : resume
}
state "TV Show Session" as TvShowSession {
[*] --> TvShowActive
TvShowActive --> TvShowInactive : playback_ended
TvShowInactive --> TvShowActive : next_episode/resume
}
AudioSession --> Idle : dismiss/clear_queue
AudioSession --> MovieSession : play_item(movie)
AudioSession --> TvShowSession : play_item(episode)
MovieSession --> Idle : dismiss/playback_complete
MovieSession --> AudioSession : play_queue(audio)
TvShowSession --> Idle : dismiss/series_complete
TvShowSession --> AudioSession : play_queue(audio)
note right of Idle
No active media session
Queue may exist but not playing
No miniplayer/video player shown
end note
note right of AudioSession
SHOW: Miniplayer (always visible)
- Active: Play/pause/skip controls enabled
- Inactive: Play button to resume queue
Persists until explicit dismiss
end note
note right of MovieSession
SHOW: Full video player
- Active: Video playing/paused
- Inactive: Resume dialog
Auto-dismiss when playback ends
end note
note right of TvShowSession
SHOW: Full video player + Next Episode UI
- Active: Video playing/paused
- Inactive: Next episode prompt
Auto-dismiss when series ends
end note
```
**Session State Enum:**
```rust
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
#[serde(tag = "type", rename_all = "snake_case")]
pub enum MediaSessionType {
/// No active session - browsing library
Idle,
/// Audio playback session (music, audiobooks, podcasts)
/// Persists until explicitly dismissed
Audio {
/// Last/current track being played
last_item: Option<MediaItem>,
/// True = playing/paused, False = stopped/ended
is_active: bool,
},
/// Movie playback (single video, auto-dismiss on end)
Movie {
item: MediaItem,
is_active: bool, // true = playing/paused, false = ended
},
/// TV show playback (supports next episode auto-advance)
TvShow {
item: MediaItem,
series_id: String,
is_active: bool, // true = playing/paused, false = ended
},
}
```
**State Transitions & Rules:**
| From State | Event | To State | UI Behavior | Notes |
|------------|-------|----------|-------------|-------|
| Idle | `play_queue(audio)` | Audio (active) | Show miniplayer | Creates audio session |
| Idle | `play_item(movie)` | Movie (active) | Show video player | Creates movie session |
| Idle | `play_item(episode)` | TvShow (active) | Show video player | Creates TV session |
| Audio (active) | `playback_ended` | Audio (inactive) | Miniplayer stays visible | Queue preserved |
| Audio (inactive) | `play/resume` | Audio (active) | Miniplayer enabled | Resume from queue |
| Audio (active/inactive) | `dismiss` | Idle | Hide miniplayer | Clear session |
| Audio (active/inactive) | `play_item(movie)` | Movie (active) | Switch to video player | Replace session |
| Movie (active) | `playback_ended` | Idle | Hide video player | Auto-dismiss |
| Movie (active) | `dismiss` | Idle | Hide video player | User dismiss |
| TvShow (active) | `playback_ended` | TvShow (inactive) | Show next episode UI | Wait for user choice |
| TvShow (inactive) | `next_episode` | TvShow (active) | Play next episode | Stay in session |
| TvShow (inactive) | `series_complete` | Idle | Hide video player | No more episodes |
**Key Design Decisions:**
1. **Audio Sessions Persist**: Miniplayer stays visible even when queue ends, allows easy resume
2. **Video Sessions Auto-Dismiss**: Movies auto-close when finished (unless paused)
3. **Single Active Session**: Playing new content type replaces current session
4. **Explicit Dismiss for Audio**: User must click close button to clear audio session
5. **Session != PlayerState**: Session is higher-level, PlayerState tracks playing/paused/seeking
**Edge Cases Handled:**
- Album finishes: Session goes inactive, miniplayer shows last track with play disabled
- User wants to dismiss: Close button clears session -> Idle
- Switch content types: New session replaces old (audio -> movie)
- Paused for extended time: Session persists indefinitely
- Playback errors: Session stays inactive, allows retry
- Queue operations while idle: Queue exists but no session created until play
## Player State Machine (Low-Level Playback)
**Location**: `src-tauri/src/player/state.rs`
The player uses a deterministic state machine with 6 states (operates within a media session):
```mermaid
stateDiagram-v2
[*] --> Idle
Idle --> Loading : Load
Loading --> Playing : MediaLoaded
Playing --> Paused : Pause
Paused --> Playing : Play
Paused --> Seeking : Seek
Seeking --> Playing : PositionUpdate
Playing --> Idle : Stop
Paused --> Idle : Stop
Idle --> Error : Error
Loading --> Error : Error
Playing --> Error : Error
Paused --> Error : Error
Seeking --> Error : Error
state Playing {
[*] : position, duration
}
state Paused {
[*] : position, duration
}
state Seeking {
[*] : target
}
state Error {
[*] : error message
}
```
**State Enum:**
```rust
pub enum PlayerState {
Idle,
Loading { media: MediaItem },
Playing { media: MediaItem, position: f64, duration: f64 },
Paused { media: MediaItem, position: f64, duration: f64 },
Seeking { media: MediaItem, target: f64 },
Error { media: Option<MediaItem>, error: String },
}
```
**Event Enum:**
```rust
pub enum PlayerEvent {
Load(MediaItem),
Play,
Pause,
Stop,
Seek(f64),
Next,
Previous,
MediaLoaded(f64), // duration
PositionUpdate(f64), // position
PlaybackEnded,
Error(String),
}
```
## Playback Mode State Machine
**Location**: `src-tauri/src/playback_mode/mod.rs`
The playback mode manages whether media is playing locally on the device or remotely on another Jellyfin session (TV, browser, etc.):
```mermaid
stateDiagram-v2
[*] --> Idle
Idle --> Local : play_queue()
Idle --> Remote : transfer_to_remote(session_id)
Local --> Remote : transfer_to_remote(session_id)
Local --> Idle : stop()
Remote --> Local : transfer_to_local()
Remote --> Idle : session_disconnected()
Remote --> Idle : stop()
state Local {
[*] : Playing on device
[*] : ExoPlayer active
[*] : Volume buttons -> device
}
state Remote {
[*] : Controlling session
[*] : session_id
[*] : Volume buttons -> remote
[*] : Android: VolumeProvider active
}
state Idle {
[*] : No active playback
}
```
**State Enum:**
```rust
pub enum PlaybackMode {
Local, // Playing on local device
Remote { session_id: String }, // Controlling remote Jellyfin session
Idle, // No active playback
}
```
**State Transitions:**
| From | Event | To | Side Effects |
|------|-------|-----|----|
| Idle | `play_queue()` | Local | Start local playback |
| Idle | `transfer_to_remote(session_id)` | Remote | Send queue to remote session |
| Local | `transfer_to_remote(session_id)` | Remote | Stop local, send queue to remote, enable remote volume (Android) |
| Local | `stop()` | Idle | Stop local playback |
| Remote | `transfer_to_local()` | Local | Get remote state, stop remote, start local at same position, disable remote volume |
| Remote | `stop()` | Idle | Stop remote playback, disable remote volume |
| Remote | `session_disconnected()` | Idle | Session lost, disable remote volume |
**Integration with Player State Machine:**
- When `PlaybackMode = Local`: Player state machine is active (Idle/Loading/Playing/Paused/etc.)
- When `PlaybackMode = Remote`: Player state is typically Idle (remote session controls playback)
- When `PlaybackMode = Idle`: Player state is Idle
**Android Volume Control Integration:**
When transitioning to `Remote` mode on Android:
1. Call `enable_remote_volume(initial_volume)`
2. VolumeProviderCompat intercepts hardware volume buttons
3. PlaybackStateCompat is set to STATE_PLAYING (shows volume UI)
4. Volume commands routed to remote session via Jellyfin API
When transitioning away from `Remote` mode:
1. Call `disable_remote_volume()`
2. Volume buttons return to controlling device volume
3. PlaybackStateCompat set to STATE_NONE
4. VolumeProviderCompat is cleared
## Media Item & Source
**Location**: `src-tauri/src/player/media.rs`
```rust
pub struct MediaItem {
pub id: String,
pub title: String,
pub artist: Option<String>,
pub album: Option<String>,
pub duration: Option<f64>,
pub artwork_url: Option<String>,
pub media_type: MediaType,
pub source: MediaSource,
}
pub enum MediaType {
Audio,
Video,
}
pub enum MediaSource {
Remote {
stream_url: String,
jellyfin_item_id: String,
},
Local {
file_path: PathBuf,
jellyfin_item_id: Option<String>,
},
DirectUrl {
url: String,
},
}
```
The `MediaSource` enum enables:
- **Remote**: Streaming from Jellyfin server
- **Local**: Downloaded/cached files (future offline support)
- **DirectUrl**: Direct URLs (channel plugins, external sources)
## Queue Manager
**Location**: `src-tauri/src/player/queue.rs`
```rust
pub struct QueueManager {
items: Vec<MediaItem>,
current_index: Option<usize>,
shuffle: bool,
repeat: RepeatMode,
shuffle_order: Vec<usize>, // Fisher-Yates permutation
history: Vec<usize>, // For back navigation in shuffle
}
pub enum RepeatMode {
Off,
All,
One,
}
```
**Queue Navigation Logic:**
```mermaid
flowchart TB
QM[QueueManager]
QM --> Shuffle
QM --> Repeat
QM --> History
subgraph Shuffle["Shuffle Mode"]
ShuffleOff["OFF<br/>next() returns index + 1"]
ShuffleOn["ON<br/>next() follows shuffle_order[]"]
end
subgraph Repeat["Repeat Mode"]
RepeatOff["OFF<br/>next() at end: -> None"]
RepeatAll["ALL<br/>next() at end: -> wrap to index 0"]
RepeatOne["ONE<br/>next() returns same item"]
end
subgraph History["History"]
HistoryDesc["Used for previous()<br/>in shuffle mode"]
end
```
## Favorites System
**Location**:
- Commands: `src-tauri/src/commands/favorites.rs` (offline drain),
`src-tauri/src/commands/repository.rs` (query + toggle),
`src-tauri/src/commands/storage/` (local `user_data` writes)
- Repository: `get_favorites` on the trait, implemented by `online.rs`,
`offline.rs` and `hybrid.rs`
- Frontend: `src/lib/services/favorites.ts`,
`src/lib/components/FavoriteButton.svelte`, `/library/favorites`
Favouriting has two halves that are easy to confuse: **marking** an item, which
has existed since UR-017, and **browsing** what was marked, which arrived with
UR-067…069 (DR-113 … DR-120). Both go through the repository, not around it.
### Marking
Optimistic local write, then server sync:
```mermaid
flowchart TB
UI[FavoriteButton] -->|Click| Service[toggleFavorite]
Service -->|"1. Optimistic"| LocalDB[("SQLite user_data<br/>is_favorite, pending_sync")]
Service -->|"2. Sync"| Repo[Repository]
Repo -->|POST / DELETE| JellyfinAPI["/Users/{id}/FavoriteItems/{itemId}"]
Service -->|"3. Mark synced"| LocalDB
Drain["spawn_favorites_drain<br/>(background task)"] -->|"pending_sync = 1"| Repo
```
1. The local row is updated immediately, so the heart fills without a round trip.
2. The repository is asked to mark or unmark on the server.
3. On success `pending_sync` is cleared; on failure the row stays pending.
4. A **background drain** (`spawn_favorites_drain`, started in `lib.rs` setup)
retries pending rows, so a favourite marked offline still reaches the server
(DR-120). This is the same pattern as the sync-queue drain — see
[Background workers](#background-workers).
### Browsing
`get_favorites(scope, options)` answers "what did this user favourite", across
libraries, with the **scope owned by Rust** — the frontend sends a
[`SearchScope`](#search-scope-and-the-taxonomy-boundary) variant and never names
an item type. `HybridRepository` splits it the same way it splits every query:
| Method | Used for |
|--------|----------|
| `get_favorites_cache_only` | The instant leg — the local `user_data` join |
| `get_favorites_server_only` | The reconciliation leg |
| `get_favorites` | Cache-first with server merge, per the repository's usual policy |
`GetItemsOptions.favorites_only` is the other entry point: it filters an
*existing* library listing rather than starting a cross-library query (DR-116),
which is what a library page's favourites filter uses.
Server favourite state is mirrored into the local `user_data` table on catalog
sync (DR-113/DR-114), so a favourite marked in another Jellyfin client shows up
here — before this, `MediaItem.user_data` was left empty and no query anywhere
asked for favourites.
**Tauri commands**:
| Command | Description |
|---------|-------------|
| `repository_get_favorites` | Cross-library favourites for a scope |
| `repository_mark_favorite` / `repository_unmark_favorite` | Toggle on the server, through the repository |
| `storage_toggle_favorite` | Local optimistic write (`is_favorite`, `pending_sync`) |
| `storage_mark_synced` | Clear `pending_sync` after a successful server write |
**Frontend surfaces** (DR-117 … DR-119): the `/library/favorites` page with a
scope selector, favourite rows on home (`favoriteMovies` / `favoriteShows` /
`favoriteMusic` in `stores/home.ts`), a favourites tile per category in the
library mosaic, and `FavoriteButton` mounted wherever a whole item is shown —
movie, series, episode, album, artist and playlist detail views as well as the
mini player.
## Player Backend Trait
**Location**: `src-tauri/src/player/backend.rs`
```rust
pub trait PlayerBackend: Send + Sync {
fn load(&mut self, media: &MediaItem) -> Result<(), PlayerError>;
fn play(&mut self) -> Result<(), PlayerError>;
fn pause(&mut self) -> Result<(), PlayerError>;
fn stop(&mut self) -> Result<(), PlayerError>;
fn seek(&mut self, position: f64) -> Result<(), PlayerError>;
fn set_volume(&mut self, volume: f32) -> Result<(), PlayerError>;
fn position(&self) -> f64;
fn duration(&self) -> Option<f64>;
fn state(&self) -> PlayerState;
fn is_loaded(&self) -> bool;
fn volume(&self) -> f32;
}
```
**Implementations:**
- `NullBackend` - Mock backend for testing
- `MpvBackend` - Linux playback via libmpv (see [05-platform-backends.md](05-platform-backends.md))
- `ExoPlayerBackend` - Android playback via ExoPlayer/Media3 (see [05-platform-backends.md](05-platform-backends.md))
## Player Controller
**Location**: `src-tauri/src/player/mod.rs`
The `PlayerController` orchestrates playback:
```rust
pub struct PlayerController {
backend: Arc<Mutex<Box<dyn PlayerBackend>>>,
queue: Arc<Mutex<QueueManager>>,
muted: bool,
sleep_timer: Arc<Mutex<SleepTimerState>>,
autoplay_settings: Arc<Mutex<AutoplaySettings>>,
autoplay_episode_count: Arc<Mutex<u32>>, // Session-based counter
repository: Arc<Mutex<Option<Arc<dyn MediaRepository>>>>,
event_emitter: Arc<Mutex<Option<Arc<dyn PlayerEventEmitter>>>>,
// ... other fields
}
```
**Key Methods:**
- `play_item(item)`: Load and play single item (resets autoplay counter)
- `play_queue(items, start_index)`: Load queue and start playback (resets autoplay counter)
- `next()` / `previous()`: Queue navigation (resets autoplay counter)
- `toggle_shuffle()` / `cycle_repeat()`: Mode changes
- `set_sleep_timer(mode)` / `cancel_sleep_timer()`: Sleep timer control
- `on_playback_ended()`: Autoplay decision making (checks sleep timer, episode limit, queue)
## Playlist System
**Location**: `src-tauri/src/commands/playlist.rs`, `src-tauri/src/repository/`
**TRACES**: UR-014 | JA-019 | JA-020
The playlist system provides full CRUD operations for Jellyfin playlists with offline support through the cache-first repository pattern.
**Types:**
```rust
/// A media item within a playlist, with its distinct playlist entry ID
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct PlaylistEntry {
/// Jellyfin's PlaylistItemId (distinct from the media item ID)
pub playlist_item_id: String,
#[serde(flatten)]
pub item: MediaItem,
}
/// Result of creating a new playlist
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct PlaylistCreatedResult {
pub id: String,
}
```
**Key Design Decision**: `PlaylistEntry` wraps a `MediaItem` with a distinct `playlist_item_id`. This is critical because removing items from a playlist requires the playlist entry ID (not the media item ID), since the same track can appear multiple times.
**MediaRepository Trait Methods:**
```rust
async fn create_playlist(&self, name: &str, item_ids: Option<Vec<String>>) -> Result<PlaylistCreatedResult, RepoError>;
async fn delete_playlist(&self, playlist_id: &str) -> Result<(), RepoError>;
async fn rename_playlist(&self, playlist_id: &str, name: &str) -> Result<(), RepoError>;
async fn get_playlist_items(&self, playlist_id: &str) -> Result<Vec<PlaylistEntry>, RepoError>;
async fn add_to_playlist(&self, playlist_id: &str, item_ids: Vec<String>) -> Result<(), RepoError>;
async fn remove_from_playlist(&self, playlist_id: &str, entry_ids: Vec<String>) -> Result<(), RepoError>;
async fn move_playlist_item(&self, playlist_id: &str, item_id: &str, new_index: u32) -> Result<(), RepoError>;
```
**Cache Strategy:**
- **Write operations** (create, delete, rename, add, remove, move): Delegate directly to online repository
- **Read operation** (`get_playlist_items`): Uses cache-first parallel racing (100ms cache timeout, server fallback)
- Background cache update after server fetch via `save_playlist_items_to_cache()`
**Playlist Tauri Commands:**
| Command | Parameters | Returns |
|---------|------------|---------|
| `playlist_create` | `handle, name, item_ids?` | `PlaylistCreatedResult` |
| `playlist_delete` | `handle, playlist_id` | `()` |
| `playlist_rename` | `handle, playlist_id, name` | `()` |
| `playlist_get_items` | `handle, playlist_id` | `Vec<PlaylistEntry>` |
| `playlist_add_items` | `handle, playlist_id, item_ids` | `()` |
| `playlist_remove_items` | `handle, playlist_id, entry_ids` | `()` |
| `playlist_move_item` | `handle, playlist_id, item_id, new_index` | `()` |
## Tauri Commands (Player)
**Location**: `src-tauri/src/commands/player.rs`
| Command | Parameters | Returns |
|---------|------------|---------|
| `player_play_item` | `PlayItemRequest` | `PlayerStatus` |
| `player_play_queue` | `items, start_index, shuffle` | `PlayerStatus` |
| `player_play` | - | `PlayerStatus` |
| `player_pause` | - | `PlayerStatus` |
| `player_toggle` | - | `PlayerStatus` |
| `player_stop` | - | `PlayerStatus` |
| `player_next` | - | `PlayerStatus` |
| `player_previous` | - | `PlayerStatus` |
| `player_seek` | `position: f64` | `PlayerStatus` |
| `player_set_volume` | `volume: f32` | `PlayerStatus` |
| `player_toggle_shuffle` | - | `QueueStatus` |
| `player_cycle_repeat` | - | `QueueStatus` |
| `player_get_status` | - | `PlayerStatus` |
| `player_get_queue` | - | `QueueStatus` |
| `player_get_session` | - | `MediaSessionType` |
| `player_dismiss_session` | - | `()` |
| `player_set_sleep_timer` | `mode: SleepTimerMode` | `()` |
| `player_cancel_sleep_timer` | - | `()` |
| `player_set_video_settings` | `settings: VideoSettings` | `VideoSettings` |
| `player_get_video_settings` | - | `VideoSettings` |
| `player_set_autoplay_settings` | `settings: AutoplaySettings` | `AutoplaySettings` |
| `player_get_autoplay_settings` | - | `AutoplaySettings` |
| `player_on_playback_ended` | - | `()` |
## Domain Vocabulary Owned by Rust
The frontend is presentation-only and must not encode Jellyfin's *taxonomy* — the
rule in [CLAUDE.md](../../CLAUDE.md) and
[scoped-search-boundary.md](../specs/scoped-search-boundary.md). These are the
places where that vocabulary actually lives.
### Search scope and the taxonomy boundary
**Location**: `src-tauri/src/repository/types.rs`
`SearchScope` is the canonical example the boundary rule is taught from. The
frontend sends an opaque variant; Rust expands it into Jellyfin item types:
```rust
pub enum SearchScope { All, Music, Movies, Tv }
impl SearchScope {
/// The Jellyfin item types this scope requests, or `None` for `All`.
pub fn item_types(self) -> Option<Vec<String>> { }
/// The scope a library of this Jellyfin `CollectionType` belongs to.
pub fn for_collection_type(collection_type: &str) -> Option<SearchScope> { }
}
```
Two details that are load-bearing:
- `All` returns `None`, **not** the union of every listed type. An explicit
`includeItemTypes` list filters out anything not named in it, so a union would
silently drop People, folders, and any type nobody enumerated. Callers must
omit the filter entirely on `None`.
- `for_collection_type` maps a Jellyfin `CollectionType` to a favourites
category (DR-175). It changes when *Jellyfin* renames a collection type, not
when the library page is redesigned — which is the test for whether something
belongs on this side of the boundary.
⚠️ **The result side has not moved yet.** `GROUP_ITEM_TYPES` in
`src/lib/utils/searchScope.ts` still maps result groups to item types in the
frontend, and `check:boundary` does not match its shape. Tracked as Stage 2 of
[scoped-search-boundary-implementation.md](../specs/scoped-search-boundary-implementation.md).
### Library exclusions
**Location**: `src-tauri/src/repository/exclusions.rs` (TRACES: UR-076 | DR-209)
Folders the user has chosen to keep out of music browsing — a "Podcasts" folder
inside a music library being the canonical case. Excluded **by item id**, not by
name, in a process-wide `RwLock<Vec<String>>` restored from the database at
startup, and applied by the repository layer to every music query (libraries,
artists, albums, genres, search, home rows).
The id is normalised (`trim`, strip `-`, lowercase) because Jellyfin writes the
same GUID both dashed and undashed depending on the endpoint. The predecessor was
a frontend filter matching the English string "Podcasts" — wrong in three ways at
once, and the reason this lives in the repository.
The set is process-wide rather than a field on a repository for the same reason
as `online::STREAMING_QUALITY`: it is a preference about *this user's browsing*,
not about a server session, so it must survive a repository being rebuilt on
re-login.
### Streaming quality ladder
**Location**: `src-tauri/src/settings.rs` (TRACES: UR-074 | DR-162)
`StreamingQuality` is a bandwidth ladder (`Original`, 20/10/8/4/2/1 Mbps,
720 kbps), not a resolution picker: it exists to fit a connection, and the
resolution cap is chosen *from* the bitrate so the encoder does not spend a small
budget on pixels it cannot afford.
| Method | Answers |
|--------|---------|
| `max_bitrate()` | Total bits/s (video + audio), `None` for `Original` |
| `audio_bitrate()` | The audio share — shrinks down the ladder, so 384 kbps is not a third of the budget at the bottom |
| `video_bitrate()` | Total minus audio, so the two together honour the ceiling |
| `max_height()` | Resolution ceiling that suits the bitrate |
The ceiling goes to `PlaybackInfo` as `MaxStreamingBitrate` **and** into the
device profile. Sending it there — not just on the transcode URL — is what makes
the cap real: a stream the server decides to *direct play* is served at the
source file's own bitrate, and no URL parameter afterwards can reduce it.
#### Two levels of ceiling
**Location**: `src-tauri/src/repository/online.rs` (TRACES: UR-074, UR-079 | DR-226)
There are two, and they are not the same thing:
| | Set by | Lives until | Read via |
|---|---|---|---|
| **Device default** | Settings (`player_set_video_settings`) | Persisted; restored at startup | `streaming_quality()` |
| **Per-playback override** | The in-player picker (`player_set_stream_quality`) | The next item starts playing | `playback_quality_override()` |
`effective_streaming_quality()` resolves the pair — override first, else default —
and **is the only thing stream construction may read**. Every URL builder and the
`PlaybackInfo` negotiation go through it, for the reason the process-wide static
existed in the first place: if the negotiation and the URL builder disagree, the
cap leaks — the negotiation authorises a direct play the builder then never gets
to constrain, or the reverse.
> The override exists because a single global cannot express "this 4K remux needs
> a ceiling, that podcast does not". The picker had documented itself as a "this
> film, this connection" control since it was written, but was implemented by
> writing the *default* — so dropping one awkward film to 2 Mbps silently capped
> every video played afterwards for the rest of the process, with Settings still
> showing the old value. It is cleared on every `player_play_item` /
> `player_play_queue` / `player_play_tracks`, which is what stops it surviving
> into an autoplayed next episode where nobody would reopen the picker.
### Stream selection
**Location**: `src-tauri/src/repository/stream_selection.rs`,
`OnlineRepository::get_stream_selection` (TRACES: UR-070, UR-079 | DR-225, DR-227, DR-228)
**Rust decides *what stream*. The player decides *how to deliver it*.** That line
is the whole design. A backend with genuine adaptive selection (ExoPlayer over a
multi-variant playlist) is left to do it; Rust chooses what to request and never
paces bytes.
`get_stream_selection` returns one self-describing `StreamSelection` in place of
the bare URL `get_video_stream_url` used to hand out:
| Field | Carries |
|---|---|
| `url` | What to open |
| `transport` | `Hls` / `Progressive` / `LocalFile` — how to fetch it |
| `playback_kind` | `DirectPlay` / `DirectStream` / `Transcode` — what the server is doing to the source |
| `rendition` | The negotiated ceiling and codecs; `None` for a direct play, which *is* the source |
| `available` | The quality ladder as it applies to this media source (DR-227) |
| `needs_transcoding` | Derived from `playback_kind`, so the rule is answered once |
Both enums are serde-tagged (`{"type":"hls"}`) so the frontend matches a
discriminant rather than comparing text.
> **Why `transport` exists.** `VideoPlayer.svelte` chose its loader with
> `url.includes(".m3u8")`, in two places. Rust *built* that URL and knows exactly
> what it is; re-deriving it downstream by substring match is a domain fact
> reconstructed in the presentation layer — the same class of error as leaking
> item-type taxonomy, and one that fails silently in **both** directions: a
> progressive file served from a path containing the substring gets an HLS
> loader, and a playlist served from a path without it does not.
>
> The paths that never negotiate get the same shape from Rust rather than letting
> a caller assemble one — `media_local_selection` for a downloaded file,
> `LiveStreamInfo.transport` for a live channel — so there is no second place
> where a transport is decided.
#### The playback-kind decision
`decide_playback_kind` is a free function and pure, so every branch is testable
from `PlaybackInfo` fixtures without a server. Order matters — the two
client-side overrides come first, because each describes a case where the
server's answer is right about the *file* and wrong about what this app will do
with it:
1. **Undecodable audio → `Transcode`.** Jellyfin 10.11.5 honours a
DirectPlayProfile's container and video codec but *ignores its audio codec*,
so it offers direct play for an E-AC-3 track the webview renders in silence.
A silent direct play is worse than a transcode.
2. **A pinned audio track → `Transcode`.** Not a defect in the server's answer, a
different question: the file has one default track and the viewer asked for
another.
3. Otherwise `supports_direct_play``DirectPlay`, else `supports_direct_stream`
`DirectStream`, else `Transcode`.
A direct **stream** is a remux — codecs copied, container repackaged. It is cheap
and is deliberately *not* counted as transcoding; conflating the two would report
a free passthrough as a server-side re-encode.
> **What this is worth, measured.** Against the development server (Jellyfin
> 10.11.5), 400 items sampled for codec mix and 40 put through a real negotiation
> per profile:
>
> | Profile | Direct play |
> |---|---|
> | Linux / WebKitGTK (`h264` only, 2ch) | 3/40 — **7%** |
> | Android / ExoPlayer (`h264,hevc,vp8,vp9,av1,mpeg4` + `ac3,eac3`, 6ch) | 34/40 — **85%** |
>
> The library is ~80% hevc (`hevc+eac3` alone is a third of it), which is why the
> two diverge so hard.
>
> **Read that 85% as a ceiling, not a result.** It was measured with a profile
> containing `ac3,eac3`. The Android device this was later run on reports neither
> in its `MediaCodecList` — no Dolby licence, which is normal for a tablet — so
> eac3 content, about a third of the sampled library, correctly transcodes there.
> What any given device achieves depends on its own codec list, and on the
> profile being derived from the renderer at all (DR-234), which it was not when
> the figure was taken.
>
> **The payoff is still overwhelmingly Android**, because that is where a real
> decoder is already doing the work. Linux stays near 7% until libmpv decodes the
> picture — the h264-only profile is a WebKitGTK constraint, not a JellyTau
> choice, and is what `linux-native-video-spike.md` exists to remove. A reviewer
> should not expect this code to fix Linux on its own.
#### The quality ladder per source
`quality_options_for_source(source_bitrate)` returns every rung, each marked with
`exceeds_source`: true when that rung's ceiling is at or above what the source
itself carries, so selecting it produces the same bytes as `Original`. The
frontend draws the list and drops the redundant rungs; it does not decide which
they are.
- `Original` is never marked — it *is* the source.
- An unreported source bitrate (some containers have none; the sampled library
has `avi` files with no bitrate at all) marks **nothing** redundant, keeping
every rung offered. That is the safe direction: the viewer keeps every choice.
#### No adaptive ladder to preserve
**TRACES: UR-079 | DR-229 (Won't Do)**
Mid-playback re-negotiation on throughput was scoped and dropped on measurement.
A master playlist from this server carries exactly **one** `EXT-X-STREAM-INF`:
Jellyfin builds it from the single rendition the request asked for rather than
publishing a ladder. So there is no adaptation for hls.js to be preserving and
none that mpv would lose — the claim that there was is recorded in
`playback-backend-unification.md` and does not hold. "Adapt mid-stream" collapses
into "pick well at open", which is what the two levels of ceiling and the
per-source ladder already are.
Kept here because it is a measurement, not an opinion: a server that *does*
publish a ladder would change the answer, and the re-negotiation path below is
the hook that work would build on.
#### Re-negotiation
One mechanism, not two. `player_seek_video`, `player_switch_audio_track` and
`player_set_stream_quality` all return a tagged `strategy` saying who reloads —
the backend handles a native backend itself and hands the webview a
`StreamSelection` for `reloadSource`. Note the wire wart: tauri-specta keeps
these response fields snake_case (`seek_offset`), while the `strategy` tag itself
is camelCase.
The frontend names a variant and nothing else; the labels the picker shows are
served over IPC — from `available` on the selection, or
`player_get_streaming_qualities` for the Settings list.
## Background workers
Three long-lived tasks are spawned from the Tauri `setup` hook in `lib.rs`. All
three exist because *when* something happens is a backend policy, not something
a page load should decide.
| Worker | Location | Responsibility |
|--------|----------|----------------|
| `spawn_catalog_indexer` | `commands/catalog.rs` | Keeps the local FTS5 catalog fresh (DR-109, IR-030) |
| `spawn_favorites_drain` | `commands/favorites.rs` | Retries favourite toggles made while offline (DR-120) |
| `spawn_sync_queue_drain` | `commands/sync_drain.rs` | Drains the offline mutation queue (DR-131) |
### Catalog indexer
Replaces the frontend's startup-only `syncCatalog()` call. It ticks on
`CATALOG_INDEX_TICK` and runs a pass when three things hold: a repository exists,
the server is reachable, and the index is due per `index_is_due`. A tick is
nearly free — one indexed `app_settings` lookup — which is what makes it
responsive to events it cannot subscribe to, such as signing in: a fresh install
would otherwise sit unindexed until the next scheduled pass.
`index_is_due` treats both "never indexed" and an unparseable stored timestamp as
due; a corrupt timestamp should trigger a re-index, not silently freeze the
catalog. A failed pass is never fatal — it leaves the existing index in place and
warns. Progress is emitted on `CATALOG_INDEX_EVENT` for the staleness hint in the
UI.
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# Svelte Frontend Architecture
## Store Structure
**Location**: `src/lib/stores/`
```mermaid
flowchart TB
subgraph Stores
subgraph auth["auth.ts"]
AuthState["AuthState<br/>- user<br/>- serverUrl<br/>- token<br/>- isLoading"]
end
subgraph playerStore["player.ts"]
PlayerStoreState["PlayerState<br/>- kind<br/>- media<br/>- position<br/>- duration"]
end
subgraph queueStore["queue.ts"]
QueueState["QueueState<br/>- items<br/>- index<br/>- shuffle<br/>- repeat"]
end
subgraph libraryStore["library.ts"]
LibraryState["LibraryState<br/>- libraries<br/>- items<br/>- loading"]
end
subgraph Derived["Derived Stores"]
DerivedList["isAuthenticated, currentUser<br/>isPlaying, isPaused, currentMedia<br/>hasNext, hasPrevious, isShuffle<br/>libraryItems, isLibraryLoading"]
end
end
```
## Music Library Architecture
**Category-Based Navigation:**
JellyTau's music library uses a category-based navigation system with a dedicated landing page that routes users to specialized views for different content types.
**Route Structure:**
```mermaid
graph TD
Music["/library/music<br/>(Landing page with category cards)"]
Tracks["Tracks<br/>(List view only)"]
Artists["Artists<br/>(Grid view)"]
Albums["Albums<br/>(Grid view)"]
Playlists["Playlists<br/>(Grid view)"]
Genres["Genres<br/>(Genre browser)"]
Music --> Tracks
Music --> Artists
Music --> Albums
Music --> Playlists
Music --> Genres
```
**View Enforcement:**
Ordinal content (where position carries meaning) is always a list. Everything
else honours the user's persisted grid/list preference — see
[ux-flows.md §5A.2](../ux-flows.md).
| Content Type | View Mode | Toggle Visible | Component Used |
|--------------|-----------|----------------|----------------|
| Tracks | List (forced — ordinal) | No | `TrackList` |
| Artists | User preference | Yes | `LibraryGrid` |
| Albums | User preference | Yes | `LibraryGrid` |
| Playlists | User preference | Yes | `LibraryGrid` |
| Genres | User preference (both levels) | Yes | `LibraryGrid` |
| Album Detail Tracks | List (forced — ordinal) | No | `TrackList` |
| Season Episodes | List (forced — ordinal) | No | `SeasonSection` |
**TrackList Component:**
The `TrackList` component (`src/lib/components/library/TrackList.svelte`) is a dedicated component for displaying songs in list format:
- **No Thumbnails**: Track numbers only (transform to play button on hover)
- **Desktop Layout**: Table with columns: #, Title, Artist, Album, Duration
- **Mobile Layout**: Compact rows with track number and metadata
- **Configurable Columns**: `showArtist` and `showAlbum` props control column visibility
- **Click Behavior**: Clicking a track plays it and queues all filtered tracks
**Example Usage:**
```svelte
<TrackList
tracks={filteredTracks}
loading={loading}
showArtist={true}
showAlbum={true}
/>
```
**LibraryGrid view mode:**
`LibraryGrid` reads the global `viewMode` store (persisted to `localStorage`)
and renders `LibraryListView` or the card grid accordingly. The `showViewToggle`
prop controls whether the toggle buttons appear in the page header; the grid
itself always follows the stored preference.
A `forceGrid` prop previously existed to pin pages to grid regardless of
preference. No caller ever passed it, so it was removed — pages that were
documented as "forced grid" have in practice always honoured the toggle.
## Playback Reporting Service
**Location**: `src/lib/services/playbackReporting.ts`
The playback reporting service ensures playback progress is synced to both the Jellyfin server AND the local SQLite database. This dual-write approach enables:
- Offline "Continue Watching" functionality
- Sync queue for when network is unavailable
- Consistent progress across app restarts
```mermaid
sequenceDiagram
participant VideoPlayer
participant PlaybackService as playbackReporting.ts
participant LocalDB as Local SQLite<br/>(Tauri Commands)
participant Jellyfin as Jellyfin Server
VideoPlayer->>PlaybackService: reportPlaybackProgress(itemId, position)
par Local Storage (always works)
PlaybackService->>LocalDB: invoke("storage_update_playback_progress")
LocalDB-->>PlaybackService: Ok (pending_sync = true)
and Server Sync (if online)
PlaybackService->>Jellyfin: POST /Sessions/Playing/Progress
Jellyfin-->>PlaybackService: Ok
PlaybackService->>LocalDB: invoke("storage_mark_synced")
end
```
**Service Functions:**
- `reportPlaybackStart(itemId, positionSeconds)` - Called when playback begins
- `reportPlaybackProgress(itemId, positionSeconds, isPaused)` - Called periodically (every 10s)
- `reportPlaybackStopped(itemId, positionSeconds)` - Called when player closes or video ends
**Tauri Commands:**
| Command | Description |
|---------|-------------|
| `storage_update_playback_progress` | Update position in local DB (marks `pending_sync = true`) |
| `storage_mark_played` | Mark item as played, increment play count |
| `storage_get_playback_progress` | Get stored progress for an item |
| `storage_mark_synced` | Clear `pending_sync` flag after successful server sync |
**Database Schema Notes:**
- The `user_data` table stores playback progress using Jellyfin IDs directly (as TEXT)
- Playback progress can be tracked even when the full item metadata hasn't been downloaded yet
**Resume Playback Feature:**
- When loading media for playback, the app checks local database for saved progress
- If progress exists (>30 seconds watched and <90% complete), shows resume dialog
- User can choose to "Resume" from saved position or "Start from Beginning"
- For video: Uses `startTimeSeconds` parameter in stream URL to begin transcoding from resume point
- For audio: Seeks to resume position after loading via MPV backend
- Implemented in `src/routes/player/[id]/+page.svelte`
## Repository Architecture (Rust-Based)
**Location**: `src-tauri/src/repository/`
```mermaid
classDiagram
class MediaRepository {
<<trait>>
+get_libraries()
+get_items(parent_id, options)
+get_item(item_id)
+search(query, options)
+get_latest_items(parent_id, limit)
+get_resume_items(parent_id, limit)
+get_next_up_episodes(series_id, limit)
+get_genres(parent_id)
+get_playback_info(item_id)
+report_playback_start(item_id, position_ticks)
+report_playback_progress(item_id, position_ticks, is_paused)
+report_playback_stopped(item_id, position_ticks)
+mark_favorite(item_id)
+unmark_favorite(item_id)
+get_person(person_id)
+get_items_by_person(person_id, options)
+get_image_url(item_id, image_type, options)
+create_playlist(name, item_ids)
+delete_playlist(playlist_id)
+rename_playlist(playlist_id, name)
+get_playlist_items(playlist_id)
+add_to_playlist(playlist_id, item_ids)
+remove_from_playlist(playlist_id, entry_ids)
+move_playlist_item(playlist_id, item_id, new_index)
}
class OnlineRepository {
-http_client: Arc~HttpClient~
-server_url: String
-user_id: String
-access_token: String
-connectivity: Option~Arc~ConnectivityMonitor~~
+new()
+with_connectivity()
-report_outcome()
}
class OfflineRepository {
-db_service: Arc~DatabaseService~
-server_id: String
-user_id: String
+new()
+cache_library()
+cache_items()
+cache_item()
}
class HybridRepository {
-online: Arc~OnlineRepository~
-offline: Arc~OfflineRepository~
+new()
-parallel_race()
-cache_with_timeout()
}
MediaRepository <|.. OnlineRepository
MediaRepository <|.. OfflineRepository
MediaRepository <|.. HybridRepository
HybridRepository --> OnlineRepository
HybridRepository --> OfflineRepository
```
**Key Implementation Details:**
1. **Cache-First Racing Strategy** (`hybrid.rs`):
- Runs cache (SQLite) and server (HTTP) queries in parallel
- Cache has 100ms timeout
- Returns cache result if it has meaningful content
- Falls back to server result otherwise
- Background cache updates planned
- **Connectivity feedback**: `OnlineRepository` reports the outcome of every server request to the `ConnectivityMonitor` (classified via `RepoError`). This is the source of truth for the offline/online banner — see [07-connectivity.md](07-connectivity.md). The frontend `connectivity` store is a pure reflection of the resulting events; `navigator.onLine` is only an advisory hint that triggers an immediate recheck.
2. **Handle-Based Resource Management** (`repository.rs` commands):
```rust
// Frontend creates repository with UUID handle
repository_create(server_url, user_id, access_token, server_id) -> String (UUID)
// All operations use handle for identification
repository_get_libraries(handle: String) -> Vec<Library>
repository_get_items(handle: String, ...) -> SearchResult
// Cleanup when done
repository_destroy(handle: String)
```
- Enables multiple concurrent repository instances
- Thread-safe with `Arc<Mutex<HashMap<String, Arc<HybridRepository>>>>`
- No global state conflicts
3. **Frontend API Layer** (`src/lib/api/repository-client.ts`):
- Thin TypeScript wrapper over Rust commands
- Maintains handle throughout session
- All methods: `invoke<T>("repository_operation", { handle, ...args })`
- ~100 lines (down from 1061 lines)
## Playback Mode System
**Location**: `src-tauri/src/playback_mode/mod.rs`
The playback mode system manages transitions between local device playback and remote Jellyfin session control:
```rust
pub enum PlaybackMode {
Local, // Playing on local device
Remote { session_id: String }, // Controlling remote session
Idle, // Not playing
}
pub struct PlaybackModeManager {
current_mode: PlaybackMode,
player_controller: Arc<Mutex<PlayerController>>,
jellyfin_client: Arc<JellyfinClient>,
}
```
**Key Operations:**
1. **Transfer to Remote** (`transfer_to_remote(session_id)`):
```mermaid
sequenceDiagram
participant UI
participant Manager as PlaybackModeManager
participant Player as PlayerController
participant Jellyfin as Jellyfin API
UI->>Manager: transfer_to_remote(session_id)
Manager->>Player: Extract queue items
Manager->>Manager: Get Jellyfin IDs from queue
Manager->>Jellyfin: POST /Sessions/{id}/Playing
Note over Jellyfin: Start playback with queue
Manager->>Jellyfin: POST /Sessions/{id}/Playing/Seek
Note over Jellyfin: Seek to current position
Manager->>Player: Stop local playback
Manager->>Manager: Set mode to Remote
```
2. **Transfer to Local** (`transfer_to_local(item_id, position_ticks)`):
- Stops remote session playback
- Prepares local player to resume
- Sets mode to Local
**Tauri Commands** (`playback_mode.rs`):
- `playback_mode_get_current()` -> Returns current PlaybackMode
- `playback_mode_transfer_to_remote(session_id)` -> Async transfer
- `playback_mode_transfer_to_local(item_id, position_ticks)` -> Async transfer back
- `playback_mode_is_transferring()` -> Check transfer state
- `playback_mode_set(mode)` -> Direct mode setting
**Frontend Store** (`src/lib/stores/playbackMode.ts`):
- Thin wrapper calling Rust commands
- Maintains UI state (isTransferring, transferError)
- Listens to mode change events from Rust
## Database Service Abstraction
**Location**: `src-tauri/src/storage/db_service.rs`
Async database interface wrapping synchronous `rusqlite` to prevent blocking the Tokio runtime:
```rust
#[async_trait]
pub trait DatabaseService: Send + Sync {
async fn execute(&self, query: Query) -> Result<usize, DatabaseError>;
async fn execute_batch(&self, queries: Vec<Query>) -> Result<(), DatabaseError>;
async fn query_one<T, F>(&self, query: Query, mapper: F) -> Result<T, DatabaseError>
where F: FnOnce(&Row) -> Result<T> + Send + 'static;
async fn query_optional<T, F>(&self, query: Query, mapper: F) -> Result<Option<T>, DatabaseError>
where F: FnOnce(&Row) -> Result<T> + Send + 'static;
async fn query_many<T, F>(&self, query: Query, mapper: F) -> Result<Vec<T>, DatabaseError>
where F: Fn(&Row) -> Result<T> + Send + 'static;
async fn transaction<F, T>(&self, f: F) -> Result<T, DatabaseError>
where F: FnOnce(Transaction) -> Result<T> + Send + 'static;
}
pub struct RusqliteService {
connection: Arc<Mutex<Connection>>,
}
impl DatabaseService for RusqliteService {
async fn execute(&self, query: Query) -> Result<usize, DatabaseError> {
let conn = self.connection.clone();
tokio::task::spawn_blocking(move || {
// Execute query on blocking thread pool
}).await?
}
// ... other methods use spawn_blocking
}
```
**Key Benefits:**
- **No Freezing**: All blocking DB ops run in thread pool via `spawn_blocking`
- **Type Safety**: `QueryParam` enum prevents SQL injection
- **Future Proof**: Easy to swap to native async DB (tokio-rusqlite)
- **Testable**: Can mock DatabaseService for tests
**Usage Pattern:**
```rust
// Before (blocking - causes UI freeze)
let conn = database.connection();
let conn = conn.lock().unwrap(); // BLOCKS
conn.query_row(...) // BLOCKS
// After (async - no freezing)
let db_service = database.service();
let query = Query::with_params("SELECT ...", vec![...]);
db_service.query_one(query, |row| {...}).await // spawn_blocking internally
```
## Component Hierarchy
```mermaid
graph TD
subgraph Routes["Routes (src/routes/)"]
LoginPage["Login Page"]
LibLayout["Library Layout"]
LibDetail["Album/Series Detail"]
MusicCategory["Music Category Landing"]
Tracks["Tracks"]
Artists["Artists"]
Albums["Albums"]
Playlists["Playlists"]
Genres["Genres"]
Downloads["Downloads Page"]
Settings["Settings Page"]
PlayerPage["Player Page"]
end
subgraph PlayerComps["Player Components"]
AudioPlayer["AudioPlayer"]
VideoPlayer["VideoPlayer"]
MiniPlayer["MiniPlayer"]
Controls["Controls"]
Queue["Queue"]
SleepTimerModal["SleepTimerModal"]
SleepTimerIndicator["SleepTimerIndicator"]
end
subgraph SessionComps["Sessions Components"]
CastButton["CastButton"]
SessionModal["SessionPickerModal"]
SessionCard["SessionCard"]
SessionsList["SessionsList"]
RemoteControls["RemoteControls"]
end
subgraph LibraryComps["Library Components"]
LibGrid["LibraryGrid"]
LibListView["LibraryListView"]
TrackList["TrackList"]
PlaylistDetail["PlaylistDetailView"]
DownloadBtn["DownloadButton"]
MediaCard["MediaCard"]
end
subgraph PlaylistComps["Playlist Components"]
CreatePlaylistModal["CreatePlaylistModal"]
AddToPlaylistModal["AddToPlaylistModal"]
end
subgraph CommonComps["Common Components"]
ScrollPicker["ScrollPicker"]
end
subgraph OtherComps["Other Components"]
Search["Search"]
FavoriteBtn["FavoriteButton"]
DownloadItem["DownloadItem"]
end
LibLayout --> PlayerComps
LibLayout --> LibDetail
MusicCategory --> Tracks
MusicCategory --> Artists
MusicCategory --> Albums
MusicCategory --> Playlists
MusicCategory --> Genres
LibDetail --> LibraryComps
Playlists --> PlaylistComps
Playlists --> PlaylistDetail
Downloads --> DownloadItem
PlayerPage --> PlayerComps
MiniPlayer --> CastButton
CastButton --> SessionModal
SleepTimerModal --> ScrollPicker
PlayerComps --> LibraryComps
```
## MiniPlayer Behavior
**Location**: `src/lib/components/player/MiniPlayer.svelte`
The MiniPlayer is a persistent bottom bar for audio playback that supports touch gestures and playback controls.
**Touch Gesture Handling:**
The MiniPlayer uses touch events to distinguish between taps (on controls) and swipe-up gestures (to expand to full player page):
```typescript
function handleTouchStart(e: TouchEvent) {
touchStartX = e.touches[0].clientX;
touchStartY = e.touches[0].clientY;
touchEndX = touchStartX; // Initialize to start position
touchEndY = touchStartY; // Prevents taps being treated as swipes
isSwiping = true;
}
```
**Key Design Decision**: `touchEndX`/`touchEndY` must be initialized to the start position in `handleTouchStart`. Without this, a pure tap (no `touchmove` event fired) would compute the swipe distance against (0,0), making every tap look like a massive swipe-up and inadvertently navigating to the player page.
**Skip Button State:**
The MiniPlayer's next/previous buttons are enabled based on `appState.hasNext`/`hasPrevious`, which are updated by `playerEvents.ts` calling `invoke("player_get_queue")` on every `StateChanged` event from the backend.
## Sleep Timer Architecture
**Location**: `src-tauri/src/player/sleep_timer.rs`, `src-tauri/src/player/mod.rs`
**TRACES**: UR-026 | DR-029
The sleep timer supports three modes for stopping playback:
```rust
#[serde(tag = "kind", rename_all = "camelCase")]
pub enum SleepTimerMode {
Off,
Time { end_time: i64 }, // Unix timestamp in milliseconds
EndOfTrack, // Stop after current track/episode
Episodes { remaining: u32 }, // Stop after N more episodes
}
```
**Timer Modes:**
| Mode | Trigger | How It Stops |
|------|---------|-------------|
| Time | User selects 15/30/45/60 min via roller UI | Background timer thread stops backend when `remaining_seconds == 0`; also checked at track boundaries in `on_playback_ended()` |
| EndOfTrack | User clicks "End of current track" | Checked in `on_playback_ended()`, returns `AutoplayDecision::Stop` |
| Episodes | User selects 1-10 episodes | `decrement_episode()` in `on_playback_ended()`, stops when counter reaches 0 |
**Time-Based Timer Flow:**
```mermaid
sequenceDiagram
participant UI as SleepTimerModal
participant Store as sleepTimer store
participant Rust as PlayerController
participant Thread as Timer Thread
participant Backend as PlayerBackend
UI->>Store: setTimeTimer(30)
Store->>Rust: invoke("player_set_sleep_timer", {mode})
Rust->>Rust: Set SleepTimerMode::Time { end_time }
Rust->>UI: Emit SleepTimerChanged event
loop Every 1 second
Thread->>Thread: update_remaining_seconds()
Thread->>UI: Emit SleepTimerChanged (countdown)
alt remaining_seconds == 0
Thread->>Backend: stop()
Thread->>UI: Emit SleepTimerChanged (Off)
end
end
```
**Frontend Components:**
- **ScrollPicker** (`src/lib/components/common/ScrollPicker.svelte`): Reusable scroll-wheel picker using CSS `scroll-snap-type: y mandatory`. Configurable items, visible count, and item height. Used by SleepTimerModal for time selection.
- **SleepTimerModal** (`src/lib/components/player/SleepTimerModal.svelte`): Modal with three sections - time picker (roller), end of track button, episode counter. Time section uses ScrollPicker with 15/30/45/60 min options. Accepts optional `mediaType` prop to override queue-based detection (used by VideoPlayer since video playback clears the audio queue).
- **SleepTimerIndicator** (`src/lib/components/player/SleepTimerIndicator.svelte`): Compact indicator showing active timer status with countdown.
- **Sleep buttons**: Clock icon buttons on AudioPlayer header, Controls bar, MiniPlayer, and VideoPlayer control bar. Shows clock icon when inactive, SleepTimerIndicator when active.
**Key Design Decisions:**
1. **All logic in Rust**: Frontend only displays state and invokes commands
2. **Background timer thread**: Handles time-based countdown independently of track boundaries
3. **Dual stop mechanism for Time mode**: Timer thread stops mid-track; `on_playback_ended()` catches edge case at track boundary
4. **Event-driven UI updates**: Timer thread emits `SleepTimerChanged` every second for countdown display
## Auto-Play Episode Limit
> ⚠️ **Autoplay is season-bounded.** `player/mod.rs:fetch_next_episode_for_item`
> does not cross a season boundary, so autoplay stops at the end of a season even
> though the "More Episodes" strip runs past it. Fixing it should reuse
> `repository_get_series_episodes`, but it touches the playback state machine and
> the Android JNI advance path (see the `AutoplayDecision` deadlock note in
> [CLAUDE.md](../../CLAUDE.md)) — its own change, not a drive-by.
**Location**: `src-tauri/src/player/mod.rs`, `src-tauri/src/player/autoplay.rs`, `src-tauri/src/settings.rs`
**TRACES**: UR-023 | DR-049
Limits how many episodes auto-play consecutively before requiring manual intervention.
**Settings:**
```rust
// In AutoplaySettings (runtime, in PlayerController)
pub struct AutoplaySettings {
pub enabled: bool,
pub countdown_seconds: u32,
pub max_episodes: u32, // 0 = unlimited
}
// In VideoSettings (persisted, settings page)
pub struct VideoSettings {
pub auto_play_next_episode: bool,
pub auto_play_countdown_seconds: u32,
pub auto_play_max_episodes: u32, // 0 = unlimited
}
```
**Session-Based Counter:**
The `autoplay_episode_count` field in `PlayerController` tracks consecutive auto-played episodes:
- **Incremented**: In `on_playback_ended()` when auto-playing next episode
- **Reset**: On any manual user action (`play_item()`, `play_queue()`, `next()`, `previous()`)
- **Limit check**: When `max_episodes > 0` and `count >= max_episodes`, the popup shows with `auto_advance: false` - user must manually click "Play Now" to continue
```mermaid
flowchart TB
PlaybackEnded["on_playback_ended()"] --> CheckEpisode{"Is video<br/>episode?"}
CheckEpisode -->|"No"| AudioFlow["Audio queue logic"]
CheckEpisode -->|"Yes"| FetchNext["Fetch next episode"]
FetchNext --> IncrementCount["increment_autoplay_count()"]
IncrementCount --> CheckLimit{"max_episodes > 0<br/>AND count >= max?"}
CheckLimit -->|"No"| ShowPopup["ShowNextEpisodePopup<br/>auto_advance: true"]
CheckLimit -->|"Yes"| ShowPopupManual["ShowNextEpisodePopup<br/>auto_advance: false"]
ShowPopupManual --> UserClick["User clicks 'Play Now'"]
UserClick --> PlayItem["play_item() -> resets counter"]
```
**Settings Sync:**
`VideoSettings` (settings page) and `AutoplaySettings` (PlayerController runtime) are synced via `player_set_video_settings`, which updates both the `VideoSettingsWrapper` state and calls `controller.set_autoplay_settings()`.
**Database**: Migration 016 adds `autoplay_max_episodes INTEGER DEFAULT 0` to `user_player_settings`.
**Settings UI**: Button grid with options: Unlimited, 1, 2, 3, 5, 10 episodes. Visible only when auto-play is enabled.
## Player Page Navigation Guard
**Location**: `src/routes/player/[id]/+page.svelte`
When the user navigates to the full player page (e.g., by swiping up on MiniPlayer), the `loadAndPlay` function checks whether the track is already playing before initiating new playback:
```typescript
const alreadyPlayingMedia = get(storeCurrentMedia);
if (alreadyPlayingMedia?.id === id && !startPosition) {
// Track already playing - show UI without restarting playback
// Fetch queue status for hasNext/hasPrevious
return;
}
```
**Why This Matters**: Without this guard, navigating to the player page would restart playback with a single-track queue, destroying the existing album/playlist queue that the backend is playing. The Rust backend maintains the full queue (visible on the Android lock screen), but the frontend `loadAndPlay` function would overwrite it by calling `player_play_tracks` with just the current track.
## Playlist Management UI
**TRACES**: UR-014 | JA-019 | JA-020
**Location**: `src/lib/components/playlist/`, `src/lib/components/library/PlaylistDetailView.svelte`
The playlist UI provides full CRUD operations for Jellyfin playlists with offline sync support.
**Components:**
- **CreatePlaylistModal** (`src/lib/components/playlist/CreatePlaylistModal.svelte`):
- Modal for creating new playlists with a name input
- Accepts optional `initialItemIds` to pre-populate with tracks
- Keyboard support: Enter to create, Escape to close
- Navigates to new playlist detail page on creation
- **AddToPlaylistModal** (`src/lib/components/playlist/AddToPlaylistModal.svelte`):
- Modal listing all existing playlists to add tracks to
- "New Playlist" button for inline creation flow
- Shows playlist artwork via CachedImage
- Loading state with skeleton placeholders
- **PlaylistDetailView** (`src/lib/components/library/PlaylistDetailView.svelte`):
- Full playlist detail page with artwork, name, track count, total duration
- Click-to-rename with inline editing
- Play all / shuffle play buttons
- Delete with confirmation dialog
- Per-track removal buttons
- Uses `TrackList` component for track display
- Passes `{ type: "playlist", playlistId, playlistName }` context to player
- **Playlists Page** (`src/routes/library/music/playlists/+page.svelte`):
- Grid view using `GenericMediaListPage`
- Floating action button (FAB) to create new playlists
- Search by playlist name
**Frontend API Methods** (`src/lib/api/repository-client.ts`):
- `createPlaylist(name, itemIds?)` -> `PlaylistCreatedResult`
- `deletePlaylist(playlistId)`
- `renamePlaylist(playlistId, name)`
- `getPlaylistItems(playlistId)` -> `PlaylistEntry[]`
- `addToPlaylist(playlistId, itemIds)`
- `removeFromPlaylist(playlistId, entryIds)`
- `movePlaylistItem(playlistId, itemId, newIndex)`
**Offline Sync** (`src/lib/services/syncService.ts`):
All playlist mutations are queued for offline sync:
- `queuePlaylistCreate`, `queuePlaylistDelete`, `queuePlaylistRename`
- `queuePlaylistAddItems`, `queuePlaylistRemoveItems`, `queuePlaylistReorderItem`
## App Shell and Chrome
**Location**: `src/lib/utils/layoutShell.ts` (pure rules),
`src/lib/components/AppHeader.svelte`,
`src/lib/components/account/AccountMenu.svelte`, `BottomUi.svelte`
**TRACES**: UR-054 | DR-075, DR-076, DR-077
Account actions used to be reachable **only from `/library/*`** — the header
that hosted them belonged to the library layout, the bottom nav offered Home /
Search / Library, and the desktop username was inert text. From `/`, `/search`
or `/downloads` there was no route to Settings or Sign out at all. The header is
now shared and rendered from the root layout.
### Visibility rules
All four rules are pure functions in `layoutShell.ts`, so the contract is
unit-testable rather than a scattering of `$derived` booleans that drift per
route and platform (which is what they were):
| Function | Rule |
|----------|------|
| `showBottomNav` | Every authenticated route except `/player/*` and `/login` |
| `showGlobalMiniPlayer` | Everything except `/player/*`, `/login`, `/settings`. **Not** gated on platform or `/library` — the root owns the mini player everywhere, so the library route must never render a second one |
| `routeOwnsLayout` | `/library`, `/player/`, `/login` render their own full-height flex column; everything else renders into the root scroller |
| `showGlobalHeader` | Authenticated, not a layout-owning route, not `/settings` (the user is already there) |
### The structural fix worth not undoing
The "last row hidden behind the nav" bug is solved **structurally, not by
measurement**: the bottom UI is an in-flow flex child *below* the scroller
(`BottomUi.svelte`), so the scroller is physically bounded above it and cannot
render behind it. There is no measurement and no reserved padding. If you
restructure the shell, preserve the scroll containment — reintroducing padding
math reintroduces the bug.
### AccountMenu
One component for both breakpoints, anchored to the username/avatar (a real
button with `aria-expanded`, not a bare three-dot icon). Fixed item order:
identity block (user + server) → Downloads, Settings, Display → divider → Sign
out, destructive and last. Dismissal is backdrop click, `Escape`, and focus
return to the trigger.
The identity block falls back to the bare host of the server URL when the server
has no human-readable name, so it always shows *something* server-identifying.
Settings' Display section and the library page-header toggle are two views onto
the **same** persisted `viewMode` store (`jellytau-view-mode`) — no second state,
no migration, and they stay in sync for free.
## Library Mosaic
**Location**: `src/lib/components/library/libraryMosaic.ts` (pure),
`MosaicGrid.svelte`, `MosaicTile.svelte`
**TRACES**: UR-075, UR-067 | DR-174, DR-175
The library overview and the home "Your Libraries" strip are a **mosaic**, not a
grid: rows share one height and each tile is as wide as its own artwork is, so a
square music cover, a 16:9 library backdrop and a 2:3 poster sit in the same row
at their own proportions instead of all three being cropped into whichever box a
grid picked.
`libraryMosaic.ts` is deliberately pure — it takes the libraries and returns the
tiles to draw, so ordering and de-duplication are unit-testable rather than
buried in markup. Tiles start at an *assumed* aspect (square, 16:9) and a
measured image overrides it in `MosaicGrid`.
Note what this file does **not** decide: which favourites category a library
belongs to. That is Jellyfin vocabulary and arrives on the library itself as
`favoritesScope`, from `SearchScope::for_collection_type` in Rust (see
[01-rust-backend.md](01-rust-backend.md#search-scope-and-the-taxonomy-boundary)).
The frontend only decides what to *call* it and where to put it.
## Series and Episode Navigation
**Location**: `src/lib/components/library/` — `SeasonSection.svelte`,
`EpisodeFocusView.svelte`, `episodeStrip.ts` (pure)
**TRACES**: UR-062 … UR-064 | DR-101 … DR-107
Opening a series lands the viewer where they actually are in it. **"Where is this
viewer in this series" is resolved in Rust** (DR-101), not by the page: the
series detail page asks the repository and anchors on the answer — the current
season expanded, the current episode highlighted and scrolled into view, and a
hero button labelled `Resume S2E4` / `Play S1E1`.
A season is not a destination: `/library/<seasonId>` redirects to its series
(DR-103). Video library routes collapse to one per library (DR-105).
`episodeStrip.ts` holds the pure logic for the "More Episodes" strip, extracted
from the component because it had three distinct bugs that markup made
untestable: the strip collapsing to just the current episode while real siblings
existed, number-less episodes all matching as "current" (`undefined ===
undefined`), and the window dead-ending at a season boundary instead of running
past it. It matches by id first and only falls back to season+episode number when
both numbers are known on both sides.
## Downloaded Browse
**Location**: `src/lib/services/downloadedCatalog.ts`,
`src/lib/components/downloads/DownloadedBrowse.svelte`
**TRACES**: UR-055, UR-056 | DR-081 … DR-085
`/downloads` is two views: **Downloaded** (the default) — the library filtered to
what is on the device, reusing the same grids, cards and detail pages as online
browsing — and **Transfers**, the in-flight progress rows demoted to a secondary
tab.
`downloadedCatalog` reads the **offline-only** browse path on the repository,
never the hybrid merge. That is the point: an empty result means "nothing
downloaded here", never "server unreachable", so the view is authoritative
regardless of connectivity. It also owns disk usage — a per-item/container byte
map plus the device total, aggregated by the backend from `downloads.file_size`
(DR-085).
## Safe-area Insets
**Location**: `src/app.css`, `WindowInsetsBridge.kt`
**TRACES**: UR-066 | DR-112, IR-031
The Android WebView does not reliably report system-bar insets through
`env(safe-area-inset-*)`. Native `WindowInsets` (`systemBars() |
displayCutout()`) are therefore pushed in as CSS custom properties, and every
edge takes the larger of the two sources:
```css
--safe-top: max(env(safe-area-inset-top, 0px), var(--jt-inset-top, 0px));
```
Two rules keep this from going wrong: **one owner per edge** (two components both
padding the top edge double-pads it), and **no nested `h-screen`** — a full-height
child inside a full-height parent that has already consumed the inset overflows
by exactly the inset.
Unlike `addJavascriptInterface`, the inset push only writes CSS properties, so it
can safely be re-sent on resume.
## Stream Transport
**Location**: `src/lib/player/streamTransport.ts`
**TRACES**: UR-079 | DR-225 | UT-214
`videoLoaderFor(selection, capabilities)` picks the loader for the webview
`<video>` element — `hlsjs`, `nativeHls`, or `direct` — from the backend's tagged
`selection.transport`. `elementSrcFor` is its template companion: the element's
`src` is emptied only when hls.js is driving it.
The split is the point. **The transport is the stream's property and comes from
Rust; whether a given loader exists is the browser's, and is the only thing
decided here.**
> This replaced `currentStreamUrl.includes(".m3u8")`, which appeared twice in
> `VideoPlayer.svelte` — once in the HLS `$effect` and once inline in the
> template's `src`. Rust builds that URL and knows what it is; re-deriving it
> here by substring match was a domain fact reconstructed in the presentation
> layer, and it fails silently in both directions. The two tests that pin it are
> the ones that failed against the old implementation: a `progressive` stream
> whose URL contains `.m3u8` must **not** get an HLS loader, and an `hls` stream
> whose URL contains no `.m3u8` must.
>
> Logic lives in a plain `.ts` module rather than in the component for the usual
> reason — it is testable there. Same pattern as `episodeStrip.ts`.
`VideoPlayer` holds a `currentSelection`, not a URL string; `currentStreamUrl` is
derived from it. A reload replaces the selection **wholesale** (the adapter's
bridge takes a `StreamSelection`, not a URL), so transport and URL can never
drift apart. The background-audio handoff states the transport it is moving to —
progressive mp3 out, HLS back — via `selectionAt()`, rather than leaving it to be
inferred.
The quality picker is filled from `selection.available` (DR-227): rungs the
backend marked `exceedsSource` are not drawn, because they produce the same bytes
as `Original`. Nothing is optimistically assigned when the viewer picks a rung —
what the menu shows comes from the selection the backend hands back, since a
ceiling above the source bitrate *is* the source.
## Native Video Store
**Location**: `src/lib/stores/nativeVideo.ts`
**TRACES**: UR-003, UR-004 | DR-188
Two separate concerns live here, deliberately:
- `experimentalNativeVideo` — the user-facing opt-in flag, **defaulting to on**.
Rust already decides *which backend this platform has* (`useHtml5Element` from
`player_play_item`); this flag only *suppresses* that decision. It never turns
native on where Rust says HTML5. An explicit stored choice wins in both
directions, so someone who opted out is not re-enabled by a default flip —
hence the `null` check rather than a bare `=== "true"`.
- `nativeVideoActive` — whether a native surface is on screen *right now*.
Setting it toggles `data-native-video` on `<html>`, which is what the CSS in
`app.css` keys off to clear the app's opaque backgrounds. It is deliberately
**not** derived from the flag: the backgrounds must come back the moment the
player unmounts.
See [05-platform-backends.md](05-platform-backends.md#native-video-compositing-android)
for what is behind the WebView.
## Logging
**Location**: `src/lib/utils/logger.ts`
**TRACES**: DR-204
The frontend's equivalent of the Rust `log` crate: four levels
(`debug < info < warn < error`), a compile-environment default (dev → `debug`,
production → `warn`), and a runtime override that is the moral equivalent of
`RUST_LOG`. Scoped loggers carry the subsystem in the message, so a filtered
console stays usable while a player, a download worker and a store are all
talking.
Production deliberately keeps **warn and error**: this is a client talking to a
server that may or may not be there, and a silent failure is worse to support
than a noisy console. Only the chatter is suppressed.
`no-console` is an ESLint **error**, with the sink module itself the only
exception, so a raw `console.*` cannot re-appear.
-294
View File
@@ -1,294 +0,0 @@
# Data Flow
## Repository Query Flow (Cache-First)
```mermaid
sequenceDiagram
participant UI as Svelte Component
participant Client as RepositoryClient (TS)
participant Rust as Tauri Command
participant Hybrid as HybridRepository
participant Cache as OfflineRepository (SQLite)
participant Server as OnlineRepository (HTTP)
participant Conn as ConnectivityMonitor
UI->>Client: getItems(parentId)
Client->>Rust: invoke("repository_get_items", {handle, parentId})
Rust->>Hybrid: get_items()
par Parallel Racing
Hybrid->>Cache: get_items() with 100ms timeout
Hybrid->>Server: get_items() (no timeout)
end
Note over Server,Conn: Every server request reports its outcome
alt Server succeeds (or answers with 4xx/5xx)
Server->>Conn: mark_reachable() (server is up)
else Network failure / timeout
Server->>Conn: mark_unreachable() (debounced)
end
alt Cache returns with content
Cache-->>Hybrid: Result with items
Hybrid-->>Rust: Return cache result
else Cache timeout or empty
Server-->>Hybrid: Fresh result
Hybrid-->>Rust: Return server result
end
Rust-->>Client: SearchResult
Client-->>UI: items[]
Note over UI: Reactive update
```
**Key Points:**
- Cache queries have 100ms timeout for responsiveness
- Server queries always run for fresh data
- Cache wins if it has meaningful content
- Automatic fallback to server if cache is empty/stale
- Background cache updates (planned)
- **Connectivity side-effect**: each server request feeds the `ConnectivityMonitor`, which is the source of truth for the offline/online banner (see [07-connectivity.md](07-connectivity.md)). A server-answered error (401/404/5xx) still counts as *reachable* — only network failures, sustained past a debounce window, flip the app to offline.
### Listing order is decided in Rust
**TRACES**: UR-007 | DR-257
A browse call names the **container** (`GetItemsOptions.parentKind`, the neutral
`MediaKind` the caller already holds) and not a sort field.
`default_listing_sort` in `repository/types.rs` turns that kind into the order:
| Container kind | Order |
|---|---|
| `channelFolder` — one podcast inside a plugin channel | `PremiereDate` descending |
| any other container | `SortName` ascending |
| none given | no `SortBy` — the server's own order stands |
Both legs of the race apply it, so the cached list does not flash in name order
before the server's arrives. An explicit `sortBy` from the caller always wins;
the default only fills the gap.
This is a domain rule, not a display preference, which is why it is not in the
frontend: the store that asks for a podcast's episodes has no business knowing
that podcasts are read newest-first. `MediaKind::ChannelFolder` exists for the
same reason — Jellyfin gives a channel container and an ordinary folder the same
item type (`ChannelFolderItem`), and while both mapped to `Folder` there was
nothing to key the rule on. The defect this prevents: every Jellypod podcast
listed alphabetically, which discarded the release order *and* clumped every
`[Played] …` episode at the top of the list.
## Search Flow (Locally Indexed)
**TRACES**: UR-065 | DR-108 … DR-111, IR-030
Search does not depend on a per-keystroke round trip to Jellyfin. The instant leg
reads the **local SQLite catalog**, which is already synced and already
FTS5-indexed, so results appear as fast as SQLite can answer — online or offline.
The server query stays, demoted to a background reconciliation that merges in
late results.
```mermaid
sequenceDiagram
participant UI as Search UI
participant Rust as repository_search
participant Cache as Local catalog (FTS5)
participant Server as Jellyfin
participant Indexer as spawn_catalog_indexer
UI->>Rust: search(query, scope)
Rust->>Cache: FTS5 query, scope expanded by SearchScope::item_types()
Cache-->>UI: instant results
Rust->>Server: reconciliation query (background)
Server-->>UI: search-event with late/merged results
Note over Indexer,Cache: Independent of any query:<br/>scheduled crawl keeps the index fresh,<br/>prunes items deleted on the server
```
**Key points:**
- The **scope is opaque on the wire**. The frontend sends a `SearchScope`
variant; Rust expands it to item types
([01-rust-backend.md](01-rust-backend.md#search-scope-and-the-taxonomy-boundary)).
- **Index freshness is a Rust policy**, not a frontend startup call — a scheduled
background pass, not "whatever was synced when the app last launched"
(DR-109). See
[Background workers](01-rust-backend.md#background-workers).
- **Index hygiene matters as much as freshness**: the catalog save path uses
`INSERT OR REPLACE` and the crawl prunes rows for content deleted on the
server, or search keeps returning items that no longer exist (DR-110).
- The index covers **exactly the types the result groups render** (DR-111) —
including Artists, which the crawl must reach or the Artists group is silently
always empty.
**Deliberately not done, with reasons:**
- **Incremental indexing** (Jellyfin's `MinDateLastSaved`). A *full* crawl is
what makes the deletion sweep sound — it yields the authoritative id set per
library, and an incremental pass cannot detect deletions. Worth revisiting if
full crawls prove slow on large libraries; measure first.
- **Removing the server leg.** The reconciliation query stays.
> ⚠️ Two dead search implementations still exist: `storage_search_items`
> (`commands/storage/mod.rs`) and `offline_search` (`commands/offline.rs`). Both
> are registered in `lib.rs` and exported to `bindings.ts`; neither is called
> from the frontend. Deleting them is correct and unclaimed.
## Playback Initiation Flow
```mermaid
sequenceDiagram
participant User
participant AudioPlayer
participant Tauri as Tauri IPC
participant Command as player_play_item()
participant Controller as PlayerController
participant Backend as PlayerBackend
participant Store as Frontend Store
User->>AudioPlayer: clicks play
AudioPlayer->>Tauri: invoke("player_play_item", {item})
Tauri->>Command: player_play_item()
Command->>Command: Convert PlayItemRequest -> MediaItem
Command->>Controller: play_item(item)
Controller->>Backend: load(item)
Note over Backend: State -> Loading
Controller->>Backend: play()
Note over Backend: State -> Playing
Controller-->>Command: Ok(())
Command-->>Tauri: PlayerStatus {state, position, duration, volume}
Tauri-->>AudioPlayer: status
AudioPlayer->>Store: player.setPlaying(media, position, duration)
Note over Store: UI updates reactively
```
## Video Stream Selection Flow
**TRACES: UR-070, UR-079 | DR-225, DR-227, DR-228**
Before a video plays, Rust decides *what stream* — direct play, remux or
transcode, over which transport — and hands the player one self-describing
`StreamSelection`. The page no longer inspects the URL to work any of this out.
```mermaid
sequenceDiagram
participant Page as player/[id]/+page.svelte
participant Repo as HybridRepository
participant Online as OnlineRepository
participant Server as Jellyfin
participant VP as VideoPlayer.svelte
Page->>Repo: playerLocalMediaPath(id)
alt a completed download exists
Page->>Repo: mediaLocalSelection(path)
Note over Page: LocalFile / DirectPlay, no ladder —<br/>nothing about a file on disk re-negotiates
else stream from the server
Page->>Repo: getStreamSelection(id, mediaSourceId)
Repo->>Online: get_stream_selection()
Online->>Online: effective_streaming_quality()
Note over Online: per-playback override, else device default
Online->>Server: POST /Items/{id}/PlaybackInfo<br/>(device profile + ceiling)
Server-->>Online: MediaSource {supportsDirectPlay,<br/>supportsDirectStream, transcodingUrl, bitrate}
Online->>Online: decide_playback_kind()
alt Transcode
Online->>Online: adopt/stop prior play session,<br/>build HLS URL
Note over Online: Transport::Hls
else DirectPlay / DirectStream
Online->>Online: /Videos/{id}/stream?static=true
Note over Online: Transport::Progressive,<br/>rendition = None (it IS the source)
end
Online->>Online: quality_options_for_source(bitrate)
Online-->>Page: StreamSelection
end
Page->>VP: selection
VP->>VP: videoLoaderFor(selection, caps)
Note over VP: hls.js / native HLS / direct —<br/>from the tag, never from the URL
```
The selection travels with the stream from then on. A reload — a quality change,
an audio-track switch, a transcoded seek — returns a *new* selection through the
same tagged `strategy` response, so transport and URL can never disagree; and the
queue item carries the transport so `player_seek_video` picks its seek strategy
from the backend's decision rather than from the URL string.
## Playback Mode Transfer Flow
```mermaid
sequenceDiagram
participant UI as Cast Button
participant Store as playbackMode store
participant Rust as Tauri Command
participant Manager as PlaybackModeManager
participant Player as PlayerController
participant Jellyfin as Jellyfin API
UI->>Store: transferToRemote(sessionId)
Store->>Rust: invoke("playback_mode_transfer_to_remote", {sessionId})
Rust->>Manager: transfer_to_remote()
Manager->>Player: Get current queue
Player-->>Manager: Vec<MediaItem>
Manager->>Manager: Extract Jellyfin IDs
Manager->>Jellyfin: POST /Sessions/{id}/Playing<br/>{itemIds, startIndex}
Jellyfin-->>Manager: 200 OK
Manager->>Jellyfin: POST /Sessions/{id}/Playing/Seek<br/>{positionTicks}
Jellyfin-->>Manager: 200 OK
Manager->>Player: stop()
Manager->>Manager: mode = Remote {sessionId}
Manager-->>Rust: Ok(())
Rust-->>Store: PlaybackMode
Store->>UI: Update cast icon
```
## Queue Navigation Flow
```mermaid
flowchart TB
User["User clicks Next"] --> Invoke["invoke('player_next')"]
Invoke --> ControllerNext["controller.next()"]
ControllerNext --> QueueNext["queue.next()<br/>- Check repeat mode<br/>- Check shuffle<br/>- Update history"]
QueueNext --> None["None<br/>(at end)"]
QueueNext --> Some["Some(next)"]
QueueNext --> Same["Same<br/>(repeat one)"]
Some --> PlayItem["play_item(next)<br/>Returns new status"]
```
## Volume Control Flow
```mermaid
sequenceDiagram
participant User
participant Slider as Volume Slider
participant Handler as handleVolumeChange()
participant Tauri as Tauri IPC
participant Command as player_set_volume
participant Controller as PlayerController
participant Backend as MpvBackend/NullBackend
participant Events as playerEvents.ts
participant Store as Player Store
participant UI
User->>Slider: adjusts (0-100)
Slider->>Handler: oninput event
Handler->>Handler: Convert 0-100 -> 0.0-1.0
Handler->>Tauri: invoke("player_set_volume", {volume})
Tauri->>Command: player_set_volume
Command->>Controller: set_volume(volume)
Controller->>Backend: set_volume(volume)
Backend->>Backend: Clamp to 0.0-1.0
Note over Backend: MpvBackend: Send to MPV loop
Backend-->>Tauri: emit "player-event"
Tauri-->>Events: VolumeChanged event
Events->>Store: player.setVolume(volume)
Store-->>UI: Reactive update
Note over UI: Both AudioPlayer and<br/>MiniPlayer stay in sync
```
**Key Implementation Details:**
- Volume is stored in the backend (NullBackend/MpvBackend)
- `PlayerController.volume()` delegates to backend
- `get_player_status()` returns `controller.volume()` (not hardcoded)
- Frontend uses normalized 0.0-1.0 scale, UI shows 0-100
@@ -1,132 +0,0 @@
# Type Synchronization & Thread Safety
## PlayerState (Rust <-> TypeScript)
**Rust:**
```rust
pub enum PlayerState {
Idle,
Loading { media: MediaItem },
Playing { media: MediaItem, position: f64, duration: f64 },
Paused { media: MediaItem, position: f64, duration: f64 },
Seeking { media: MediaItem, target: f64 },
Error { media: Option<MediaItem>, error: String },
}
```
**TypeScript:**
```typescript
type PlayerState =
| { kind: "idle" }
| { kind: "loading"; media: MediaItem }
| { kind: "playing"; media: MediaItem; position: number; duration: number }
| { kind: "paused"; media: MediaItem; position: number; duration: number }
| { kind: "seeking"; media: MediaItem; target: number }
| { kind: "error"; media: MediaItem | null; error: string };
```
## MediaItem Serialization
```rust
// Rust (serde serialization)
#[derive(Serialize, Deserialize)]
pub struct MediaItem {
pub id: String,
pub title: String,
#[serde(skip_serializing_if = "Option::is_none")]
pub artist: Option<String>,
// ...
}
```
```typescript
// TypeScript
interface MediaItem {
id: string;
title: string;
artist?: string;
// ...
}
```
## Tauri v2 IPC Parameter Naming Convention
**CRITICAL**: Tauri v2's `#[tauri::command]` macro automatically converts snake_case Rust parameter names to camelCase for the frontend. All `invoke()` calls must use camelCase for top-level parameters.
**Rule**: Rust `fn cmd(repository_handle: String)` -> Frontend sends `{ repositoryHandle: "..." }`
```typescript
// CORRECT - Tauri v2 auto-converts snake_case -> camelCase
await invoke("player_play_tracks", {
repositoryHandle: "handle-123", // Rust: repository_handle
request: { trackIds: ["id1"], startIndex: 0 }
});
await invoke("remote_send_command", {
sessionId: "session-123", // Rust: session_id
command: "PlayPause"
});
await invoke("pin_item", {
itemId: "item-123" // Rust: item_id
});
// WRONG - snake_case causes "invalid args request" error on Android
await invoke("player_play_tracks", {
repository_handle: "handle-123", // Will fail!
});
```
**Parameter Name Mapping (Rust -> Frontend)**:
| Rust Parameter | Frontend Parameter | Used By |
|----------------|-------------------|----|
| `repository_handle` | `repositoryHandle` | `player_play_tracks`, `player_add_track_by_id`, `player_play_album_track` |
| `session_id` | `sessionId` | `remote_send_command`, `remote_play_on_session`, `remote_session_seek` |
| `item_id` | `itemId` | `pin_item`, `unpin_item` |
| `current_item_id` | `currentItemId` | `playback_mode_transfer_to_local` |
| `position_ticks` | `positionTicks` | `playback_mode_transfer_to_local`, `remote_session_seek` |
| `item_ids` | `itemIds` | `remote_play_on_session` |
| `start_index` | `startIndex` | `remote_play_on_session` |
**Nested struct fields** use `#[serde(rename_all = "camelCase")]` separately - this is serde deserialization, not the command macro. Both layers convert independently.
**Test Coverage**: Integration tests in `src/lib/utils/tauriIntegration.test.ts` validate all invoke calls use correct camelCase parameter names.
## Rust Backend Thread Safety
```rust
// Shared state wrapped in Arc<Mutex<>>
pub struct PlayerController {
backend: Arc<Mutex<Box<dyn PlayerBackend>>>,
queue: Arc<Mutex<QueueManager>>,
// ...
}
// Tauri state wrapper
pub struct PlayerStateWrapper(pub Mutex<PlayerController>);
// Command handler pattern
#[tauri::command]
pub fn player_play(state: State<PlayerStateWrapper>) -> Result<PlayerStatus, String> {
let mut controller = state.0.lock().unwrap(); // Acquire lock
controller.play()?; // Operate
Ok(get_player_status(&controller)) // Lock released
}
```
## Frontend Stores
Svelte stores are inherently reactive and thread-safe for UI updates:
```typescript
const { subscribe, update } = writable<PlayerStore>(initialState);
// Atomic updates
function setPlaying(media: MediaItem, position: number, duration: number) {
update(state => ({
...state,
state: { kind: "playing", media, position, duration }
}));
}
```
-707
View File
@@ -1,707 +0,0 @@
# Platform-Specific Player Backends
## Player Events System
**Location**: `src-tauri/src/player/events.rs`
The player uses a push-based event system to notify the frontend of state changes:
```rust
pub enum PlayerStatusEvent {
/// Playback position updated (emitted periodically during playback)
PositionUpdate { position: f64, duration: f64 },
/// Player state changed
StateChanged { state: String, media_id: Option<String> },
/// Media has finished loading and is ready to play
MediaLoaded { duration: f64 },
/// Playback has ended naturally
PlaybackEnded,
/// Buffering state changed
Buffering { percent: u8 },
/// An error occurred during playback
Error { message: String, recoverable: bool },
/// Volume changed
VolumeChanged { volume: f32, muted: bool },
/// Sleep timer state changed
SleepTimerChanged {
mode: SleepTimerMode,
remaining_seconds: u32,
},
/// Show next episode popup with countdown
ShowNextEpisodePopup {
current_episode: MediaItem,
next_episode: MediaItem,
countdown_seconds: u32,
auto_advance: bool,
},
/// Countdown tick (emitted every second during autoplay countdown)
CountdownTick { remaining_seconds: u32 },
/// Queue changed (items added, removed, reordered, or playback mode changed)
QueueChanged {
items: Vec<MediaItem>,
current_index: Option<usize>,
shuffle: bool,
repeat: RepeatMode,
has_next: bool,
has_previous: bool,
},
/// Media session changed (activity context changed: Audio/Movie/TvShow/Idle)
SessionChanged { session: MediaSessionType },
}
```
Events are emitted via Tauri's event system:
```mermaid
flowchart LR
subgraph Backend["Player Backend"]
MPV["MPV/ExoPlayer"]
end
subgraph EventSystem["Event System"]
Emitter["TauriEventEmitter<br/>emit()"]
Bus["Tauri Event Bus<br/>'player-event'"]
end
subgraph Frontend["Frontend"]
Listener["playerEvents.ts<br/>Frontend Listener"]
Store["Player Store Update<br/>(position, state, etc)"]
end
MPV --> Emitter --> Bus --> Listener --> Store
```
**Frontend Listener** (`src/lib/services/playerEvents.ts`):
- Listens for `player-event` Tauri events
- Updates player/queue stores based on event type
- Auto-advances to next track on `PlaybackEnded`
- On `StateChanged` events, calls `invoke("player_get_queue")` to update `appState.hasNext`/`hasPrevious` -- this enables MiniPlayer skip button state
**Important**: The command is `player_get_queue` (returns `QueueStatus` with `hasNext`/`hasPrevious`). There is no `player_get_queue_status` command.
## HTML5 Video Adapter (webview-rendered video)
**Location**: `src/lib/player/html5Adapter.ts`, `src/lib/player/index.ts`, report commands in
`src-tauri/src/commands/player/timers.rs`
Video on desktop (Linux WebKitGTK) — and, per current interim behavior, Android — is rendered by an
HTML5 `<video>`/HLS element **inside the webview**. libmpv is initialized audio-only (`vo=null`,
`video=false`), so the native backend cannot render or observe this element. The `<video>` is therefore
the real player, living outside Rust's reach.
To keep the `PlayerController` the single source of truth (matching the audio path), the HTML5 element
is treated as **a dumb output device that reports back into Rust**, rather than an independent state
authority:
```mermaid
flowchart LR
subgraph Webview["Webview"]
Video["HTML5 <video> / HLS.js"]
Adapter["html5Adapter.ts<br/>(reports DOM events)"]
end
subgraph Backend["Rust"]
Cmds["player_report_state<br/>player_report_position<br/>player_report_media_loaded"]
Controller["PlayerController"]
Emitter["TauriEventEmitter"]
end
subgraph Frontend["Frontend"]
Events["playerEvents.ts"]
Store["player store"]
end
Video -->|DOM events| Adapter --> Cmds --> Controller --> Emitter --> Events --> Store
```
**Key points:**
- The adapter re-emits the *same* `PlayerStatusEvent`s (`StateChanged`, `PositionUpdate`, `MediaLoaded`)
the native backends emit, so `playerEvents.ts` needs **no** HTML5-specific branch — HTML5 is just
another event source feeding the existing pipeline.
- Position reports are throttled (~250ms) to match the MPV cadence and avoid flooding IPC from the
60fps RAF loop.
- **Boundary rule**: UI components never touch the report commands or `videoElement` state directly.
Playback *control* goes through the unified facade `src/lib/player/index.ts` (`playerController`);
HTML5 *state reporting* goes through `html5Adapter.ts`. This restores the documented invariant
("frontend only displays state and invokes commands") for the video path.
## MpvBackend (Linux)
**Location**: `src-tauri/src/player/mpv/`
The MPV backend uses libmpv for audio playback on Linux. Since MPV handles are not `Send`, all operations occur on a dedicated thread.
```mermaid
flowchart TB
subgraph MainThread["Main Thread"]
MpvBackend["MpvBackend<br/>- command_tx<br/>- shared_state<br/>- shutdown"]
Commands["Commands:<br/>Load, Play, Pause<br/>Stop, Seek, SetVolume"]
end
subgraph EventLoopThread["MPV Event Loop Thread"]
EventLoop["event_loop.rs<br/>- MPV Handle<br/>- command_rx<br/>- Event Emitter"]
TauriEmitter["TauriEventEmitter"]
end
MpvBackend -->|"MpvCommand"| EventLoop
MpvBackend <-->|"Arc<Mutex<>>"| EventLoop
EventLoop -->|"Events"| TauriEmitter
TauriEmitter --> FrontendStore["Frontend Store"]
```
**Key Components:**
```rust
// Command enum sent to event loop thread
pub enum MpvCommand {
Load { url: String, media: MediaItem },
Play,
Pause,
Stop,
Seek(f64),
SetVolume(f32),
Quit,
}
// Shared state between main thread and event loop
pub struct MpvSharedState {
pub state: PlayerState,
pub position: f64,
pub duration: Option<f64>,
pub volume: f32,
pub is_loaded: bool,
pub current_media: Option<MediaItem>,
}
```
**Event Loop** (`event_loop.rs`):
- Initializes MPV with audio-only config (`vo=null`, `video=false`)
- Observes properties: `time-pos`, `duration`, `pause`, `volume`
- Emits position updates every 250ms during playback
- Processes commands from channel (non-blocking)
- Handles MPV events: `FileLoaded`, `EndFile`, `PropertyChange`
## ExoPlayerBackend (Android)
**Location**: `src-tauri/src/player/android/` and Kotlin sources
The ExoPlayer backend uses Android's Media3/ExoPlayer library via JNI.
```mermaid
flowchart TB
subgraph RustNative["Rust (Native)"]
ExoBackend["ExoPlayerBackend<br/>- player_ref<br/>- shared_state"]
NativeFuncs["JNI Callbacks<br/>nativeOnPosition...<br/>nativeOnState...<br/>nativeOnMediaLoaded<br/>nativeOnPlaybackEnd"]
TauriEmitter2["TauriEventEmitter"]
end
subgraph KotlinJVM["Kotlin (JVM)"]
JellyTauPlayer["JellyTauPlayer<br/>- ExoPlayer<br/>- Player.Listener"]
end
ExoBackend -->|"JNI Calls"| JellyTauPlayer
JellyTauPlayer -->|"Callbacks"| NativeFuncs
NativeFuncs --> TauriEmitter2
TauriEmitter2 --> FrontendStore2["Frontend Store"]
```
**Kotlin Player** (`JellyTauPlayer.kt`):
```kotlin
class JellyTauPlayer(context: Context) {
private val exoPlayer: ExoPlayer
private var positionUpdateJob: Job?
// Methods callable from Rust via JNI
fun load(url: String, mediaId: String)
fun play()
fun pause()
fun stop()
fun seek(positionSeconds: Double)
fun setVolume(volume: Float)
// Native callbacks to Rust
private external fun nativeOnPositionUpdate(position: Double, duration: Double)
private external fun nativeOnStateChanged(state: String, mediaId: String?)
private external fun nativeOnMediaLoaded(duration: Double)
private external fun nativeOnPlaybackEnded()
}
```
**JNI Callbacks** (Rust):
```rust
#[no_mangle]
pub extern "system" fn Java_com_dtourolle_jellytau_player_JellyTauPlayer_nativeOnPositionUpdate(
_env: JNIEnv, _class: JClass, position: jdouble, duration: jdouble
) {
// Update shared state
// Emit PlayerStatusEvent::PositionUpdate
}
```
### Audio settings on ExoPlayer
**TRACES**: UR-027, UR-032, UR-033 | DR-030, DR-035, DR-036
`PlayerBackend` declares `set_audio_settings` with a default `Ok(())` body. For a
long time `ExoPlayerBackend` took that default, so Settings Audio rendered
controls that silently did nothing on Android — the parity gap recorded in
[requirements.md](../requirements.md#platform-playback-backend-parity-linux-vs-android),
now closed.
The settings cross to Kotlin as **JSON over JNI**, not as a wide signature, so new
fields do not change the method signature — the same approach `load()` uses for
subtitles:
```rust
fn set_audio_settings(&mut self, settings: &AudioSettings) -> Result<(), PlayerError> {
let json = audio_settings_jni_payload(settings)?;
env.call_method(&self.player_ref, "setAudioSettings", "(Ljava/lang/String;)V", )?;
// Store the sanitised form, so audio_settings() reflects what was applied.
self.shared_state.lock_safe().audio_settings =
settings.clone().with_crossfade_clamped().with_equalizer_normalised();
}
```
Kotlin owns the *mechanics* — attaching `AudioEffect`s to the audio session — while
the canonical band layout and preset curves stay in Rust:
| Feature | Android mechanism | Notes |
|---------|-------------------|-------|
| Gapless | `pauseAtEndOfMediaItems` | |
| Volume normalization | `LoudnessEnhancer` | A gain stage — approximate next to MPV's `dynaudnorm` |
| Equalizer | `android.media.audiofx.Equalizer` | The canonical 10 bands are resampled onto the device's own band centres |
| Crossfade | — | Unimplemented on **every** platform (DR-034), architecturally blocked on MPV. Building it on Android alone would invert the parity gap |
Two things are deliberately still open: the effects are **not yet verified on a
physical device** (`AudioEffect` availability and band layouts are device-specific),
and the trait default is still a silent `Ok(())` rather than an error, so a backend
that omits the method still reports success. Flipping that default waits on the
device verification.
### The equalizer, and where its vocabulary lives
**TRACES**: UR-027 | DR-030, IR-020
The canonical band layout (`EQ_BANDS`) and the preset curves live in
`settings.rs`, **not** in either backend and not in the UI: a preset *is* a gain
curve defined by the band layout, and the layout is a property of the audio
engine rather than of the picker that renders it. Presets are Flat, Rock, Pop,
Jazz, Classical, Bass Boost, Treble Boost and Vocal, all conservative (within
±8 dB) so they stack safely with volume normalization.
| Platform | Mechanism |
|----------|-----------|
| Linux | One ffmpeg two-pole peaking `equalizer` filter per band, composed by `build_af_filter` into MPV's `af` property alongside the normalization filter: `equalizer=f=31:width_type=o:width=1:g=5` |
| Android | `android.media.audiofx.Equalizer`, with the canonical 10 bands **resampled onto whatever band centres the device actually has** |
Gains are normalised (`with_equalizer_normalised`) before use, and bands beyond
`EQ_BANDS` are ignored, so a malformed settings payload cannot produce a filter
chain of unbounded length.
## Background Audio Handoff (Android)
**TRACES**: UR-040 | IR-025, DR-051, DR-052, DR-178 … DR-180, DR-196, DR-203
Keeping a video's **audio** alive when the app is backgrounded or the screen
locks, while video decode stops. Two verified facts drive the whole design:
1. An Android WebView `<video>` **does not** keep playing audio once the app is
backgrounded — the system throttles the WebView and media pauses.
2. Keeping audio alive in the background requires a **native foreground media
service**, which already exists for music (`JellyTauPlaybackService` +
`JellyTauPlayer` + `MediaSessionCompat`).
So this is a **handoff**, not "keep the WebView alive": on background, tear down
the current renderer and play the same item audio-only through the native
service; on foreground, hand back. In the project's one-directional playback
model this is a change of *which player is authoritative*, and the position must
transfer cleanly across it.
```mermaid
sequenceDiagram
participant App as App backgrounded
participant FE as VideoPlayer
participant Rust as player_enter/exit_background_audio
participant Exo as Native audio service
App-->>FE: jellytau-background (DOM CustomEvent)
FE->>Rust: enter(item, position, audioStreamIndex)
Rust->>Exo: play audio-only at position
Note over Exo: lockscreen + notification, existing MediaSession
App-->>FE: jellytau-foreground
FE->>Rust: exit() -> final position
Rust-->>FE: position
FE->>FE: restart the renderer that is on screen
```
Details that were each a shipped defect:
- **Position is absolute.** Transcoded HLS tracks time as
`videoElement.currentTime + seekOffset` (the element resets to 0 after each
transcode reload). `computeHandoffPosition` sums both terms; using the element
time alone rewinds by the offset.
- **A downloaded episode takes no base URL and an ordinary seek** (DR-180); a
stream takes the base and no seek; a handoff at 0:00 takes neither.
- **The return must restart the renderer that is actually on screen** (DR-196).
The two paths resume by different means — the webview `<video>` reloads off its
stream URL, watched by an `$effect`; ExoPlayer owns no element and nothing
watches the URL for it, so it needs an explicit re-issue. Doing only the URL
assignment restarted nothing on the native path and left a black screen with a
play button that did nothing.
- **`wasPlaying` is captured on the way out** so play/pause survives the round
trip, and the handoff does not silently rewind (DR-203).
- **Mutually exclusive with PiP.** Toggle on → `setAutoEnterEnabled(false)`;
toggle off → PiP on background, the status quo. The frontend re-asserts the
value whenever the toggle changes and on unmount, so a stale setting cannot
leak into the next player.
- The pure arithmetic and state transitions live in
`backgroundAudioHandoff.ts`, free of Svelte and the DOM, so they are testable
without mounting the player.
Native signals background/foreground to the frontend as DOM CustomEvents
(`jellytau-background` / `jellytau-foreground`); the frontend carries the toggle
state to native through the `AndroidBackgroundAudio` bridge. No-op on every
non-Android platform.
## Native Video Compositing (Android)
**TRACES**: UR-003, UR-004 | DR-150 … DR-152, DR-182 … DR-196
Android can render video on the **native ExoPlayer surface behind a transparent
Tauri WebView**, with the Svelte controls drawn over it. This is on by default;
the HTML5 `<video>` path remains the fallback and is not being removed. The
default has been flipped and reverted twice and each revert has a named cause —
the per-defect record is in `requirements.md` (DR-150 … DR-196).
```mermaid
flowchart TB
subgraph Window["One Android window"]
Texture["TextureView (index 0)<br/>ExoPlayer video"]
WebView["Tauri WebView (above)<br/>transparent, Svelte controls"]
end
Rust["ExoPlayerBackend"] -->|JNI| Player["JellyTauPlayer"]
Player --> Texture
MainActivity -->|"setTransparent(true)"| WebView
VideoOverlayManager -->|"attach / detach"| Texture
```
Load-bearing details, each of which was a shipped defect:
- **TextureView, not SurfaceView** (DR-192). A SurfaceView renders on its own
layer *outside* the app window and punches a transparent hole through it;
everything drawn above that hole — for us the whole UI — depends on that
composition path, which Android's own documentation says does not reliably
work. A TextureView makes "behind" ordinary view z-order within one window.
- **Attached at index 0** by `VideoOverlayManager`, and **detached when the video
goes** (DR-184) — a surface left in the hierarchy outlives its player.
- **Bridges are installed before the page that uses them** (DR-183).
`addJavascriptInterface` must run once per WebView instance and a call that
lands after the page has loaded never reaches it, so `setTransparent(true)`
could be dropped entirely.
- **The app shell stops painting over the surface** (DR-185). `app.css` clears
its opaque backgrounds off `[data-native-video]`; before that, a CSS rule
targeted an attribute nothing ever set, so the fix looked applied and was not.
- **The poster card can lift on a path with no `<video>` element** (DR-182) — the
native reveal fires on a `playing` state or a position tick carrying a position
or duration, and on nothing else.
- **Letterbox bars are painted**, not left holding whatever was last in the
framebuffer (DR-194).
- There is deliberately **no audio-focus bridge**: manual focus requests from the
WebView competed with Chromium's `AudioFocusDelegate` and with ExoPlayer, and
the resulting `AUDIOFOCUS_LOSS` paused playback.
Related Kotlin pieces in the same window: `PictureInPictureManager` (DR-160/161),
`ScreenWakeManager` (DR-202 — Android counts its display timeout from touch
events, which a playing video does not generate), `ImmersiveModeBridge` and
`WindowInsetsBridge` (IR-031/DR-112 — see
[02-svelte-frontend.md](02-svelte-frontend.md#safe-area-insets)).
## Android MediaSession & Remote Volume Control
**Location**: `JellyTauPlaybackService.kt`
JellyTau uses a dual MediaSession architecture for Android to support both Media3 playback controls and remote volume control:
```mermaid
flowchart TB
subgraph Service["JellyTauPlaybackService"]
MediaSession["Media3 MediaSession<br/>- Lockscreen controls<br/>- Media notifications<br/>- Play/Pause/Next/Previous"]
MediaSessionCompat["MediaSessionCompat<br/>- Remote volume control<br/>- Hardware button interception"]
VolumeProvider["VolumeProviderCompat<br/>- onSetVolumeTo()<br/>- onAdjustVolume()"]
MediaSessionCompat --> VolumeProvider
end
subgraph Hardware["System"]
VolumeButtons["Hardware Volume Buttons"]
Lockscreen["Lockscreen Controls"]
Notification["Media Notification"]
end
subgraph Rust["Rust Backend"]
JNI["JNI Callbacks<br/>nativeOnRemoteVolumeChange()"]
PlaybackMode["PlaybackModeManager<br/>send_remote_volume_command()"]
JellyfinAPI["Jellyfin API<br/>session_set_volume()"]
end
VolumeButtons --> VolumeProvider
Lockscreen --> MediaSession
Notification --> MediaSession
VolumeProvider --> JNI
JNI --> PlaybackMode
PlaybackMode --> JellyfinAPI
```
**Architecture Rationale:**
JellyTau maintains both MediaSession types because they serve different purposes:
1. **Media3 MediaSession**: Handles lockscreen/notification playback controls (play/pause/next/previous)
2. **MediaSessionCompat**: Intercepts hardware volume button presses for remote playback control
When in remote playback mode (controlling a Jellyfin session on another device):
- Volume buttons are routed through `VolumeProviderCompat`
- Volume changes are sent to the remote session via Jellyfin API
- System volume UI shows the remote session's volume level
**Remote Volume Flow:**
```mermaid
sequenceDiagram
participant User
participant VolumeButton as Hardware Volume Button
participant VolumeProvider as VolumeProviderCompat
participant JNI as nativeOnRemoteVolumeChange
participant PlaybackMode as PlaybackModeManager
participant Jellyfin as Jellyfin Server
participant RemoteSession as Remote Session (TV/Browser)
User->>VolumeButton: Press Volume Up
VolumeButton->>VolumeProvider: onAdjustVolume(ADJUST_RAISE)
VolumeProvider->>VolumeProvider: remoteVolumeLevel += 2
VolumeProvider->>VolumeProvider: currentVolume = remoteVolumeLevel
VolumeProvider->>JNI: nativeOnRemoteVolumeChange("VolumeUp", level)
JNI->>PlaybackMode: send_remote_volume_command("VolumeUp", level)
PlaybackMode->>Jellyfin: POST /Sessions/{id}/Command/VolumeUp
Jellyfin->>RemoteSession: Set volume to new level
RemoteSession-->>User: Volume changes on TV/Browser
```
**Key Implementation Details:**
**Enabling Remote Volume** (`enableRemoteVolume()`):
```kotlin
fun enableRemoteVolume(initialVolume: Int) {
volumeProvider = object : VolumeProviderCompat(
VolumeProviderCompat.VOLUME_CONTROL_ABSOLUTE,
100, // Max volume
initialVolume
) {
override fun onSetVolumeTo(volume: Int) {
remoteVolumeLevel = volume.coerceIn(0, 100)
nativeOnRemoteVolumeChange("SetVolume", remoteVolumeLevel)
}
override fun onAdjustVolume(direction: Int) {
when (direction) {
AudioManager.ADJUST_RAISE -> {
remoteVolumeLevel = (remoteVolumeLevel + 2).coerceAtMost(100)
nativeOnRemoteVolumeChange("VolumeUp", remoteVolumeLevel)
currentVolume = remoteVolumeLevel
}
AudioManager.ADJUST_LOWER -> {
remoteVolumeLevel = (remoteVolumeLevel - 2).coerceAtLeast(0)
nativeOnRemoteVolumeChange("VolumeDown", remoteVolumeLevel)
currentVolume = remoteVolumeLevel
}
}
}
}
mediaSessionCompat.setPlaybackToRemote(volumeProvider)
}
```
**Disabling Remote Volume** (`disableRemoteVolume()`):
```kotlin
fun disableRemoteVolume() {
mediaSessionCompat.setPlaybackToLocal(AudioManager.STREAM_MUSIC)
volumeProvider = null
}
```
**Rust Integration** (`src-tauri/src/player/android/mod.rs`):
```rust
/// Enable remote volume control on Android
pub fn enable_remote_volume(initial_volume: i32) -> Result<(), String> {
start_playback_service()?;
let service_instance = get_playback_service_instance()?;
env.call_method(&service_instance, "enableRemoteVolume", "(I)V",
&[JValue::Int(initial_volume)])?;
Ok(())
}
```
**Dependencies** (`src-tauri/android/build.gradle.kts`):
```kotlin
dependencies {
implementation("androidx.media3:media3-session:1.5.1") // Media3 MediaSession
implementation("androidx.media:media:1.7.0") // MediaSessionCompat
}
```
**Integration with Playback Mode:**
Remote volume is automatically enabled/disabled during playback mode transfers:
```rust
// In PlaybackModeManager::transfer_to_remote()
#[cfg(target_os = "android")]
{
if let Err(e) = crate::player::enable_remote_volume(50) {
log::warn!("Failed to enable remote volume: {}", e);
}
}
// In PlaybackModeManager::transfer_to_local()
#[cfg(target_os = "android")]
{
if let Err(e) = crate::player::disable_remote_volume() {
log::warn!("Failed to disable remote volume: {}", e);
}
}
```
## Android Album Art Caching
**Location**: `src-tauri/android/src/main/java/com/dtourolle/jellytau/player/AlbumArtCache.kt`
Album art caching provides efficient bitmap storage for lock screen notifications with automatic LRU eviction and memory management.
```mermaid
flowchart TB
subgraph JellyTauPlayer["JellyTauPlayer.kt"]
LoadMedia["loadWithMetadata()<br/>- Store artworkUrl<br/>- Launch async download"]
AsyncDownload["Coroutine<br/>- Non-blocking<br/>- Dispatchers.IO"]
end
subgraph Cache["AlbumArtCache.kt"]
MemoryCache["LruCache<String, Bitmap><br/>- 1/8 of heap<br/>- ~12-16MB typical<br/>- 50-100 albums capacity"]
Download["Download & Scale<br/>- 512x512 max<br/>- Exponential backoff"]
ErrorHandle["Error Handling<br/>- Graceful fallback<br/>- Auto-retry"]
end
subgraph Service["JellyTauPlaybackService.kt"]
UpdateMeta["updateMediaMetadata()<br/>- Accept Bitmap parameter<br/>- Add METADATA_KEY_ALBUM_ART"]
Notification["Notification<br/>- setLargeIcon()<br/>- Lock screen display"]
end
LoadMedia --> AsyncDownload
AsyncDownload --> MemoryCache
MemoryCache --> Download
Download --> ErrorHandle
AsyncDownload --> UpdateMeta
UpdateMeta --> Notification
```
**AlbumArtCache Singleton:**
```kotlin
class AlbumArtCache(context: Context) {
private val memoryCache = object : LruCache<String, Bitmap>(cacheSize) {
override fun sizeOf(key: String, bitmap: Bitmap): Int {
return bitmap.byteCount / 1024 // Size in KB
}
}
suspend fun getArtwork(url: String): Bitmap? {
memoryCache.get(url)?.let { return it }
return downloadAndCache(url)
}
private suspend fun downloadAndCache(url: String): Bitmap? =
withContext(Dispatchers.IO) {
// HTTP download with 5s timeout
// Scale to 512x512 max
// Auto-evict LRU if needed
}
}
```
**Integration Flow:**
1. **Track Load** (`loadWithMetadata()`):
- Store artwork URL in `currentArtworkUrl`
- Reset bitmap to null
- Start playback immediately (non-blocking)
2. **Async Download** (Background Coroutine):
- Check cache: instant hit if available
- Network miss: download, scale, cache
- Auto-retry on network failure with exponential backoff
- Graceful fallback if artwork unavailable
3. **Notification Update**:
- Pass bitmap to `updatePlaybackServiceNotification()`
- Add to `MediaMetadataCompat` with `METADATA_KEY_ALBUM_ART`
- Display as large icon in notification
- Show on lock screen
**Memory Management:**
| Metric | Value |
|--------|-------|
| Cache Size | 1/8 of heap (12-16MB typical) |
| Max Resolution | 512x512 pixels |
| Capacity | ~50-100 album arts |
| Eviction Policy | LRU (Least Recently Used) |
| Lifetime | In-memory only (app session) |
| Network Timeout | 5 seconds per download |
**Performance Characteristics:**
- **Cache Hit**: ~1ms (in-memory retrieval)
- **Cache Miss**: ~200-500ms (download + scale)
- **Playback Impact**: Zero (async downloads)
- **Memory Overhead**: Max 16MB (auto-eviction)
- **Error Recovery**: Automatic with exponential backoff
## Backend Initialization
**Location**: `src-tauri/src/lib.rs`
Backend selection is platform-specific:
```rust
fn create_player_backend(app_handle: tauri::AppHandle) -> Box<dyn PlayerBackend> {
let event_emitter = Arc::new(TauriEventEmitter::new(app_handle));
#[cfg(target_os = "linux")]
{
match MpvBackend::new(event_emitter.clone()) {
Ok(backend) => return Box::new(backend),
Err(e) => eprintln!("MPV init failed: {}", e),
}
}
#[cfg(target_os = "android")]
{
// ExoPlayer requires Activity context, initialized separately
}
// Fallback
Box::new(NullBackend::new())
}
```
@@ -1,339 +0,0 @@
# Download Manager & Offline Architecture
## Overview
**Location**: `src-tauri/src/download/`
The download manager provides offline media support with priority-based queue management, progress tracking, retry logic, and smart caching.
```mermaid
flowchart TB
subgraph Frontend["Frontend"]
DownloadButton["DownloadButton.svelte"]
DownloadsPage["/downloads"]
DownloadsStore["downloads.ts store"]
end
subgraph Backend["Rust Backend"]
Commands["Download Commands"]
DownloadManager["DownloadManager"]
DownloadWorker["DownloadWorker"]
SmartCache["SmartCache Engine"]
end
subgraph Storage["Storage"]
SQLite[("SQLite DB")]
MediaFiles[("Downloaded Files")]
end
DownloadButton -->|"invoke('download_item')"| Commands
DownloadsPage -->|"invoke('get_downloads')"| Commands
Commands --> DownloadManager
DownloadManager --> DownloadWorker
DownloadManager --> SmartCache
DownloadWorker -->|"HTTP Stream"| MediaFiles
DownloadWorker -->|"Events"| DownloadsStore
Commands <--> SQLite
SmartCache <--> SQLite
```
## Download Worker
**Location**: `src-tauri/src/download/worker.rs`
The download worker handles HTTP streaming with retry logic and resume support:
```rust
pub struct DownloadWorker {
client: reqwest::Client,
max_retries: u32,
}
pub struct DownloadTask {
pub id: i64,
pub item_id: String,
pub user_id: String,
pub priority: i32,
pub url: String,
pub target_path: PathBuf,
pub mime_type: Option<String>,
pub expected_size: Option<i64>,
}
```
**Retry Strategy**:
- Exponential backoff: 5s, 15s, 45s
- Maximum 3 retry attempts
- HTTP Range requests for resume support
- Progress events emitted every 1MB
**Download Flow**:
```mermaid
sequenceDiagram
participant UI
participant Command as download_item
participant DB as SQLite
participant Worker as DownloadWorker
participant Jellyfin as Jellyfin Server
participant Store as downloads store
UI->>Command: download_item(itemId, userId)
Command->>DB: INSERT INTO downloads
Command->>Worker: Start download task
Worker->>Jellyfin: GET /Items/{id}/Download
loop Progress Updates
Jellyfin->>Worker: Stream chunks
Worker->>Worker: Write to .part file
Worker->>Store: Emit progress event
Store->>UI: Update progress bar
end
Worker->>Worker: Rename .part to final
Worker->>DB: UPDATE status='completed'
Worker->>Store: Emit completed event
Store->>UI: Show completed
```
## Smart Caching Engine
**Location**: `src-tauri/src/download/cache.rs`
The smart caching system provides predictive downloads based on listening patterns:
```rust
pub struct SmartCache {
config: Arc<Mutex<CacheConfig>>,
album_play_history: Arc<Mutex<HashMap<String, Vec<String>>>>,
}
pub struct CacheConfig {
pub queue_precache_enabled: bool,
pub queue_precache_count: usize, // Default: 5
pub album_affinity_enabled: bool,
pub album_affinity_threshold: usize, // Default: 3
pub storage_limit: u64, // Default: 10GB
pub wifi_only: bool, // Default: true
}
```
**Caching Strategies**:
1. **Queue Pre-caching**: Auto-download next 5 tracks when playing (WiFi only)
2. **Album Affinity**: If user plays 3+ tracks from album, cache entire album
3. **LRU Eviction**: Remove least recently accessed when storage limit reached
```mermaid
flowchart TB
Play["Track Played"] --> CheckQueue{"Queue<br/>Pre-cache?"}
CheckQueue -->|"Yes"| CacheNext5["Download<br/>Next 5 Tracks"]
Play --> TrackHistory["Track Play History"]
TrackHistory --> CheckAlbum{"3+ Tracks<br/>from Album?"}
CheckAlbum -->|"Yes"| CacheAlbum["Download<br/>Full Album"]
CacheNext5 --> CheckStorage{"Storage<br/>Limit?"}
CacheAlbum --> CheckStorage
CheckStorage -->|"Exceeded"| EvictLRU["Evict LRU Items"]
CheckStorage -->|"OK"| Download["Queue Download"]
```
## One Storage Model: Cache Entries Are Downloads
**TRACES**: UR-071 | DR-126, DR-127
A cache entry **is** a download with a shorter life: the same `downloads` row and
the same file handling, distinguished by `download_source` plus an expiry. There
is one storage model rather than a cache and a download library that can
disagree about what is on disk.
| `download_source` | Life | Reclaimed by |
|-------------------|------|--------------|
| `'auto'` (temporary) | Expiry, or eviction under space pressure | Both |
| `'user'` (permanent) | No expiry | Neither |
**Eviction only reclaims the temporary tier.** `evict_lru_async` originally
selected every completed download ordered by `completed_at ASC` with no source
filter, so hitting the storage limit deleted the *oldest* download — typically a
film saved deliberately for offline — to make room for a newly precached track.
It now evicts only `COALESCE(download_source, 'user') = 'auto'` rows.
`COALESCE` rather than a bare equality is load-bearing: rows predating the
migration can be NULL, and **unknown provenance must be treated as the user's,
never as disposable**. Freeing less than requested is the correct outcome when
only user downloads remain — the caller reports "unable to free enough".
A temporary row can be **promoted** to permanent when the user chooses to keep
it. That only clears the expiry and flips the source; the bytes never move.
## Offline Catalog Visibility
**TRACES**: UR-052 | DR-078, DR-079, DR-080
Offline, a library page shows **only media on the device**. A "Show all server
media" toggle additionally reveals the cached server catalog, greyed out and
queueable for download on reconnect.
The gate is a process-global `INCLUDE_CATALOG_BROWSE` in
`repository/offline.rs`, written by the `set_show_server_catalog` command. It
gates the synced-catalog leg of `get_items`; without it the toggle rendered but
every server item still appeared, which is the defect the spec was written for.
`isConnected` derives from backend-reported reachability alone (DR-079) — see
[07-connectivity.md](07-connectivity.md).
Per-item disk usage comes from `repository_get_download_disk_usage`
(`DownloadDiskUsage`), aggregated from `downloads.file_size` — used by the
Downloaded browse cards, detail pages, the device total and the remove
confirmation (DR-085).
## Download Commands
**Location**: `src-tauri/src/commands/download/``mod.rs` (the commands below), `pinning.rs`, `smart_cache.rs`
| Command | Parameters | Description |
|---------|------------|-------------|
| `download_item` | `item_id, user_id, file_path` | Queue single item download |
| `download_album` | `album_id, user_id` | Queue all tracks in album |
| `get_downloads` | `user_id, status_filter` | Get download list |
| `pause_download` | `download_id` | Pause active download |
| `resume_download` | `download_id` | Resume paused download |
| `cancel_download` | `download_id` | Cancel and delete partial |
| `delete_download` | `download_id` | Delete completed download |
| `download_video` / `download_series` / `download_season` | item ids | Queue video content |
| `get_download_storage_stats` | `user_id` | Device totals for the downloads screen |
| `delete_album_downloads` / `delete_downloads_under` / `delete_all_downloads` | container id | Bulk removal |
| `pin_item` / `unpin_item` / `is_item_pinned` | `item_id` | Protect metadata from a cache clear |
| `set_max_concurrent_downloads` | `max` | Worker concurrency (3 by default) |
## Offline Commands
**Location**: `src-tauri/src/commands/offline.rs`
| Command | Parameters | Description |
|---------|------------|-------------|
| `offline_is_available` | `item_id` | Check if item downloaded |
| `offline_get_items` | `user_id` | Get all offline items |
| `offline_search` | `user_id, query` | Search downloaded items |
## Player Integration
**Location**: `src-tauri/src/commands/player.rs` (modified)
The player checks for local downloads before streaming:
```rust
fn create_media_item(req: PlayItemRequest, db: Option<&DatabaseWrapper>) -> MediaItem {
let local_path = db.and_then(|db_wrapper| {
check_for_local_download(db_wrapper, &jellyfin_id).ok().flatten()
});
let source = if let Some(path) = local_path {
MediaSource::Local {
file_path: PathBuf::from(path),
jellyfin_item_id: Some(jellyfin_id.clone())
}
} else {
MediaSource::Remote {
stream_url: req.stream_url,
jellyfin_item_id: jellyfin_id.clone()
}
};
MediaItem { source, /* ... */ }
}
```
## Frontend Downloads Store
**Location**: `src/lib/stores/downloads.ts`
```typescript
interface DownloadsState {
downloads: Record<number, DownloadInfo>;
activeCount: number;
queuedCount: number;
}
const downloads = createDownloadsStore();
// Actions
downloads.downloadItem(itemId, userId, filePath)
downloads.downloadAlbum(albumId, userId)
downloads.pause(downloadId)
downloads.resume(downloadId)
downloads.cancel(downloadId)
downloads.delete(downloadId)
downloads.refresh(userId, statusFilter)
// Derived stores
export const activeDownloads = derived(downloads, ($d) =>
Object.values($d.downloads).filter((d) => d.status === 'downloading')
);
```
**Event Handling**:
The store listens to Tauri events for real-time updates:
```typescript
listen<DownloadEvent>('download-event', (event) => {
const payload = event.payload;
switch (payload.type) {
case 'started':
// Update status to 'downloading'
case 'progress':
// Update progress and bytes_downloaded
case 'completed':
// Update status to 'completed', progress to 1.0
case 'failed':
// Update status to 'failed', store error message
}
});
```
## Download UI Components
**DownloadButton** (`src/lib/components/library/DownloadButton.svelte`):
- Multiple states: available, downloading, completed, failed, paused
- Circular progress ring during download
- Size variants: sm, md, lg
- Integrated into TrackList with `showDownload={true}` prop
**DownloadItem** (`src/lib/components/downloads/DownloadItem.svelte`):
- Individual download list item with progress bar
- Action buttons: pause, resume, cancel, delete
- Status indicators with color coding
**Downloads Page** (`src/routes/downloads/+page.svelte`):
- Active/Completed tabs
- Bulk actions: Pause All, Resume All, Clear Completed
- Empty states with helpful instructions
## Database Schema
**downloads table**:
```sql
CREATE TABLE downloads (
id INTEGER PRIMARY KEY AUTOINCREMENT,
item_id TEXT NOT NULL,
user_id TEXT NOT NULL,
file_path TEXT,
file_size INTEGER,
mime_type TEXT,
status TEXT DEFAULT 'pending', -- pending, downloading, completed, failed, paused
progress REAL DEFAULT 0.0,
bytes_downloaded INTEGER DEFAULT 0,
priority INTEGER DEFAULT 0,
error_message TEXT,
retry_count INTEGER DEFAULT 0,
queued_at TEXT DEFAULT CURRENT_TIMESTAMP,
started_at TEXT,
completed_at TEXT
);
CREATE INDEX idx_downloads_queue
ON downloads(status, priority DESC, queued_at ASC)
WHERE status IN ('pending', 'downloading');
```
-127
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@@ -1,127 +0,0 @@
# Connectivity & Network Architecture
## HTTP Client with Retry Logic
**Location**: `src-tauri/src/jellyfin/http_client.rs`
The HTTP client provides automatic retry with exponential backoff for network resilience:
```rust
pub struct HttpClient {
client: reqwest::Client,
config: HttpConfig,
}
pub struct HttpConfig {
pub timeout: Duration, // Default: 30s (large library queries can be slow)
pub max_retries: u32, // Default: 3
}
```
> Note: ordinary requests use the 30s timeout above. The connectivity recovery probe (`ping`) uses a shorter, dedicated 5s timeout so an unreachable server is detected quickly while offline.
**Retry Strategy:**
- Retry delays: 1s, 2s, 4s (exponential backoff)
- Retries on: Network errors, 5xx server errors
- No retry on: 4xx client errors, 401/403 authentication errors
**Error Classification:**
```rust
pub enum ErrorKind {
Network, // Connection failures, timeouts, DNS errors
Authentication, // 401/403 responses
Server, // 5xx server errors
Client, // Other 4xx errors
}
```
## Connectivity Monitor
**Location**: `src-tauri/src/connectivity/mod.rs`
The connectivity monitor is the **single source of truth** for server reachability. Its primary signal is the outcome of *real repository traffic* — every server request the user actually makes. A standalone `/System/Info/Public` probe is kept only as an offline recovery detector.
### Source of truth: repository traffic
`OnlineRepository` reports the result of each server request to the monitor, classified via `RepoError`:
| Repository outcome | Meaning | Effect on reachability |
|--------------------|---------|------------------------|
| `Ok(_)` | Server answered successfully | Mark **reachable** (instant recovery) |
| `Err(Authentication)` | Server answered with 401/403 | Mark **reachable** (server is up; request was rejected) |
| `Err(NotFound)` | Server answered with 404 | Mark **reachable** (server is up) |
| `Err(Server)` | Server answered with 5xx / bad body | Mark **reachable** (server is up) |
| `Err(Network)` | Connection failure / timeout / DNS | **Candidate for offline** (see debounce) |
| `Err(Database)` | Local cache error only | No effect (not a server signal) |
This classification fixes the previous bug where a successful `/System/Info/Public` ping reported "online" even while the user's authenticated data calls were failing — and vice versa.
### Time-window debounce (offline) + instant recovery (online)
To stop the banner from flapping on a single dropped request, the transition to **offline** is debounced over a time window:
- On the **first** `Network` failure, the monitor records `first_failure_at`.
- It flips `is_server_reachable = false` only once `Network` failures have persisted continuously for `OFFLINE_CONFIRM_WINDOW` (5s) with no intervening success.
- **Any** success (or server-answered error) clears `first_failure_at` and immediately marks reachable.
Recovery is therefore instant and asymmetric: one good response brings the app back online, but a brief blip never trips the banner.
### Offline-only recovery probe
```mermaid
flowchart TB
Repo["OnlineRepository"] -->|"success / RepoError"| Monitor["ConnectivityMonitor"]
Monitor --> State{"is_server_reachable?"}
State -->|"Online"| NoProbe["No background polling<br/>(real traffic is the signal)"]
State -->|"Offline"| Probe["5s /System/Info/Public probe<br/>(recovery detector)"]
Probe -->|"reachable again"| Monitor
Monitor -->|"on change"| Emit["Emit connectivity:changed<br/>+ connectivity:reconnected"]
Emit --> Frontend["Frontend Store → banner"]
```
While **online**, there is no background polling — real requests keep the state fresh. While **offline**, the fast 5s probe runs so an idle app still detects the server returning even when no user traffic is flowing.
**Features:**
- **Traffic-driven**: Reachability follows the requests the user actually makes.
- **Time-window debounce**: Offline declared only after `OFFLINE_CONFIRM_WINDOW` (5s) of sustained network failure; recovery is instant.
- **Offline-only probe**: 5s `/System/Info/Public` probe runs only while offline.
- **Event Emission**: Emits `connectivity:changed` and `connectivity:reconnected` events.
- **Thread-Safe**: Uses `Arc<RwLock<>>` for shared state.
**Tauri Commands:**
| Command | Description |
|---------|-------------|
| `connectivity_check_server` | Manual reachability check (also used by the frontend's advisory `navigator.onLine` hint) |
| `connectivity_set_server_url` | Update monitored server URL |
| `connectivity_get_status` | Get current connectivity status |
| `connectivity_start_monitoring` | Start the offline recovery probe |
| `connectivity_stop_monitoring` | Stop the probe |
| `connectivity_mark_reachable` | Mark reachable — driven by `OnlineRepository` on every server success |
| `connectivity_mark_unreachable` | Mark unreachable — driven by `OnlineRepository` on `RepoError::Network` (subject to debounce) |
**Frontend Integration:**
```typescript
// The store is a pure reflection of backend events — it no longer decides
// reachability itself. navigator.onLine is advisory: it triggers an immediate
// recheck rather than forcing the offline state.
listen<{ isReachable: boolean }>("connectivity:changed", (event) => {
updateConnectivityState(event.payload.isReachable);
});
```
## Network Resilience Architecture
The connectivity system provides resilience through multiple layers:
1. **HTTP Client Layer**: Automatic retry with exponential backoff
2. **Connectivity Monitoring**: Reachability derived from real repository traffic, with an offline-only recovery probe
3. **Frontend Integration**: Offline mode detection and UI updates (a pure reflection of backend events)
4. **Sync Queue**: Offline mutations queued for later (see [06-downloads-and-offline.md](06-downloads-and-offline.md))
**Design Principles:**
- **Single source of truth**: Reachability follows the outcome of real requests, classified via `RepoError`; the frontend store and the probe never compete to decide it.
- **Fail Fast**: Don't retry 4xx errors (client errors, authentication).
- **Fail Slow**: Retry network and 5xx errors with increasing delays.
- **Debounced offline, instant online**: Declare offline only after a sustained failure window; recover on the first success.
- **Probe only when needed**: Background polling runs only while offline, as a recovery detector.
- **Event-Driven**: Frontend reacts to connectivity changes via events.
-614
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@@ -1,614 +0,0 @@
# Offline Database Design
## Entity Relationship Diagram
```mermaid
erDiagram
servers ||--o{ users : "has"
servers ||--o{ libraries : "has"
libraries ||--o{ items : "contains"
items ||--o{ items : "parent_of"
items ||--o{ user_data : "has"
items ||--o{ downloads : "has"
items ||--o{ media_streams : "has"
items ||--o{ thumbnails : "has"
users ||--o{ user_data : "owns"
users ||--o{ downloads : "owns"
users ||--o{ sync_queue : "owns"
servers {
int id PK
string jellyfin_id UK
string name
string url
string version
datetime last_sync
}
users {
int id PK
string jellyfin_id
int server_id FK
string name
boolean is_active
}
libraries {
int id PK
string jellyfin_id
int server_id FK
string name
string collection_type
string image_tag
}
items {
int id PK
string jellyfin_id
int server_id FK
int library_id FK
int parent_id FK
string type
string name
string sort_name
string overview
int production_year
float community_rating
string official_rating
int runtime_ticks
string primary_image_tag
string backdrop_image_tag
string album_id
string album_name
string album_artist
json artists
json genres
int index_number
int parent_index_number
string premiere_date
json metadata_json
datetime created_at
datetime updated_at
datetime last_sync
}
user_data {
int id PK
int item_id FK
int user_id FK
int position_ticks
int play_count
boolean is_favorite
boolean played
datetime last_played
datetime updated_at
datetime synced_at
}
downloads {
int id PK
int item_id FK
int user_id FK
string file_path
int file_size
string status
float progress
int priority
string error_message
datetime created_at
datetime completed_at
}
media_streams {
int id PK
int item_id FK
int stream_index
string type
string codec
string language
string display_title
boolean is_default
boolean is_forced
boolean is_external
}
sync_queue {
int id PK
int user_id FK
string operation
string entity_type
string entity_id
json payload
datetime created_at
int attempts
datetime last_attempt
string status
}
thumbnails {
int id PK
int item_id FK
string image_type
string image_tag
string file_path
int width
int height
datetime cached_at
}
```
## Table Definitions
### servers
Stores connected Jellyfin server information.
```sql
CREATE TABLE servers (
id INTEGER PRIMARY KEY AUTOINCREMENT,
jellyfin_id TEXT NOT NULL UNIQUE,
name TEXT NOT NULL,
url TEXT NOT NULL,
version TEXT,
last_sync DATETIME,
created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
);
```
### users
Stores user accounts per server. Access tokens are stored separately in secure storage (see [09-security.md](09-security.md)).
```sql
CREATE TABLE users (
id INTEGER PRIMARY KEY AUTOINCREMENT,
jellyfin_id TEXT NOT NULL,
server_id INTEGER NOT NULL REFERENCES servers(id) ON DELETE CASCADE,
name TEXT NOT NULL,
is_active BOOLEAN DEFAULT 0,
created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
UNIQUE(jellyfin_id, server_id)
);
```
### libraries
Stores library/collection metadata.
```sql
CREATE TABLE libraries (
id INTEGER PRIMARY KEY AUTOINCREMENT,
jellyfin_id TEXT NOT NULL,
server_id INTEGER NOT NULL REFERENCES servers(id) ON DELETE CASCADE,
name TEXT NOT NULL,
collection_type TEXT,
image_tag TEXT,
sort_order INTEGER DEFAULT 0,
last_sync DATETIME,
created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
UNIQUE(jellyfin_id, server_id)
);
CREATE INDEX idx_libraries_server ON libraries(server_id);
```
### items
Main table for all media items (movies, episodes, albums, songs, etc.).
```sql
CREATE TABLE items (
id INTEGER PRIMARY KEY AUTOINCREMENT,
jellyfin_id TEXT NOT NULL,
server_id INTEGER NOT NULL REFERENCES servers(id) ON DELETE CASCADE,
library_id INTEGER REFERENCES libraries(id) ON DELETE SET NULL,
parent_id INTEGER REFERENCES items(id) ON DELETE CASCADE,
-- Basic metadata
type TEXT NOT NULL,
name TEXT NOT NULL,
sort_name TEXT,
overview TEXT,
-- Media info
production_year INTEGER,
community_rating REAL,
official_rating TEXT,
runtime_ticks INTEGER,
-- Images
primary_image_tag TEXT,
backdrop_image_tag TEXT,
-- Audio-specific
album_id TEXT,
album_name TEXT,
album_artist TEXT,
artists TEXT, -- JSON array
-- Series/Season-specific
index_number INTEGER,
parent_index_number INTEGER,
series_id TEXT,
series_name TEXT,
season_id TEXT,
-- Additional
genres TEXT, -- JSON array
premiere_date TEXT,
metadata_json TEXT,
-- Sync tracking
created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
last_sync DATETIME,
UNIQUE(jellyfin_id, server_id)
);
-- Performance indexes
CREATE INDEX idx_items_server ON items(server_id);
CREATE INDEX idx_items_library ON items(library_id);
CREATE INDEX idx_items_parent ON items(parent_id);
CREATE INDEX idx_items_type ON items(type);
CREATE INDEX idx_items_album ON items(album_id);
CREATE INDEX idx_items_series ON items(series_id);
CREATE INDEX idx_items_name ON items(name COLLATE NOCASE);
-- Full-text search
CREATE VIRTUAL TABLE items_fts USING fts5(
name,
overview,
artists,
album_name,
album_artist,
content='items',
content_rowid='id'
);
-- Triggers to keep FTS in sync
CREATE TRIGGER items_ai AFTER INSERT ON items BEGIN
INSERT INTO items_fts(rowid, name, overview, artists, album_name, album_artist)
VALUES (new.id, new.name, new.overview, new.artists, new.album_name, new.album_artist);
END;
CREATE TRIGGER items_ad AFTER DELETE ON items BEGIN
INSERT INTO items_fts(items_fts, rowid, name, overview, artists, album_name, album_artist)
VALUES ('delete', old.id, old.name, old.overview, old.artists, old.album_name, old.album_artist);
END;
CREATE TRIGGER items_au AFTER UPDATE ON items BEGIN
INSERT INTO items_fts(items_fts, rowid, name, overview, artists, album_name, album_artist)
VALUES ('delete', old.id, old.name, old.overview, old.artists, old.album_name, old.album_artist);
INSERT INTO items_fts(rowid, name, overview, artists, album_name, album_artist)
VALUES (new.id, new.name, new.overview, new.artists, new.album_name, new.album_artist);
END;
```
### media_streams
Stores subtitle and audio track information for items.
```sql
CREATE TABLE media_streams (
id INTEGER PRIMARY KEY AUTOINCREMENT,
item_id INTEGER NOT NULL REFERENCES items(id) ON DELETE CASCADE,
stream_index INTEGER NOT NULL,
type TEXT NOT NULL,
codec TEXT,
language TEXT,
display_title TEXT,
is_default BOOLEAN DEFAULT 0,
is_forced BOOLEAN DEFAULT 0,
is_external BOOLEAN DEFAULT 0,
path TEXT,
UNIQUE(item_id, stream_index)
);
CREATE INDEX idx_media_streams_item ON media_streams(item_id);
```
### user_data
Stores per-user data for items (favorites, progress, play count).
```sql
CREATE TABLE user_data (
id INTEGER PRIMARY KEY AUTOINCREMENT,
item_id INTEGER NOT NULL REFERENCES items(id) ON DELETE CASCADE,
user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
-- Playback state
position_ticks INTEGER DEFAULT 0,
play_count INTEGER DEFAULT 0,
played BOOLEAN DEFAULT 0,
last_played DATETIME,
-- User preferences
is_favorite BOOLEAN DEFAULT 0,
user_rating REAL,
-- Sync tracking
updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
synced_at DATETIME,
needs_sync BOOLEAN DEFAULT 0,
UNIQUE(item_id, user_id)
);
CREATE INDEX idx_user_data_item ON user_data(item_id);
CREATE INDEX idx_user_data_user ON user_data(user_id);
CREATE INDEX idx_user_data_needs_sync ON user_data(needs_sync) WHERE needs_sync = 1;
CREATE INDEX idx_user_data_favorites ON user_data(user_id, is_favorite) WHERE is_favorite = 1;
CREATE INDEX idx_user_data_in_progress ON user_data(user_id, position_ticks)
WHERE position_ticks > 0 AND played = 0;
```
### downloads
Tracks downloaded media files.
```sql
CREATE TABLE downloads (
id INTEGER PRIMARY KEY AUTOINCREMENT,
item_id INTEGER NOT NULL REFERENCES items(id) ON DELETE CASCADE,
user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
file_path TEXT,
file_size INTEGER,
file_hash TEXT,
status TEXT NOT NULL DEFAULT 'pending',
progress REAL DEFAULT 0,
bytes_downloaded INTEGER DEFAULT 0,
transcode_profile TEXT,
priority INTEGER DEFAULT 0,
error_message TEXT,
retry_count INTEGER DEFAULT 0,
created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
started_at DATETIME,
completed_at DATETIME,
expires_at DATETIME,
UNIQUE(item_id, user_id)
);
CREATE INDEX idx_downloads_status ON downloads(status);
CREATE INDEX idx_downloads_user ON downloads(user_id);
CREATE INDEX idx_downloads_queue ON downloads(status, priority DESC, created_at ASC)
WHERE status IN ('pending', 'downloading');
```
### sync_queue
Stores mutations to sync back to server when online.
```sql
CREATE TABLE sync_queue (
id INTEGER PRIMARY KEY AUTOINCREMENT,
user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
operation TEXT NOT NULL,
entity_type TEXT NOT NULL,
entity_id TEXT NOT NULL,
payload TEXT,
status TEXT DEFAULT 'pending',
attempts INTEGER DEFAULT 0,
max_attempts INTEGER DEFAULT 5,
last_attempt DATETIME,
error_message TEXT,
created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
completed_at DATETIME
);
CREATE INDEX idx_sync_queue_status ON sync_queue(status, created_at ASC)
WHERE status = 'pending';
CREATE INDEX idx_sync_queue_user ON sync_queue(user_id);
```
### thumbnails
Caches downloaded artwork.
```sql
CREATE TABLE thumbnails (
id INTEGER PRIMARY KEY AUTOINCREMENT,
item_id INTEGER NOT NULL REFERENCES items(id) ON DELETE CASCADE,
image_type TEXT NOT NULL,
image_tag TEXT,
file_path TEXT NOT NULL,
width INTEGER,
height INTEGER,
file_size INTEGER,
cached_at DATETIME DEFAULT CURRENT_TIMESTAMP,
last_accessed DATETIME DEFAULT CURRENT_TIMESTAMP,
UNIQUE(item_id, image_type, width)
);
CREATE INDEX idx_thumbnails_item ON thumbnails(item_id);
CREATE INDEX idx_thumbnails_lru ON thumbnails(last_accessed ASC);
```
### playlists (for local/synced playlists)
```sql
CREATE TABLE playlists (
id INTEGER PRIMARY KEY AUTOINCREMENT,
jellyfin_id TEXT,
user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
name TEXT NOT NULL,
description TEXT,
is_local_only BOOLEAN DEFAULT 0,
created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
synced_at DATETIME,
needs_sync BOOLEAN DEFAULT 0
);
CREATE TABLE playlist_items (
id INTEGER PRIMARY KEY AUTOINCREMENT,
playlist_id INTEGER NOT NULL REFERENCES playlists(id) ON DELETE CASCADE,
item_id INTEGER NOT NULL REFERENCES items(id) ON DELETE CASCADE,
sort_order INTEGER NOT NULL,
added_at DATETIME DEFAULT CURRENT_TIMESTAMP,
UNIQUE(playlist_id, item_id)
);
CREATE INDEX idx_playlist_items_playlist ON playlist_items(playlist_id, sort_order);
```
## Key Queries
### Get items for offline library browsing
```sql
-- Get all albums in a music library
SELECT * FROM items
WHERE library_id = ? AND type = 'MusicAlbum'
ORDER BY sort_name;
-- Get tracks for an album
SELECT * FROM items
WHERE album_id = ? AND type = 'Audio'
ORDER BY parent_index_number, index_number;
```
### Resume / Continue Watching
```sql
SELECT i.*, ud.position_ticks, ud.last_played
FROM items i
JOIN user_data ud ON ud.item_id = i.id
WHERE ud.user_id = ?
AND ud.position_ticks > 0
AND ud.played = 0
ORDER BY ud.last_played DESC
LIMIT 20;
```
### Offline search
```sql
SELECT i.* FROM items i
JOIN items_fts fts ON fts.rowid = i.id
WHERE items_fts MATCH ?
ORDER BY rank;
```
### Download queue management
```sql
-- Get next item to download
SELECT d.*, i.name, i.type
FROM downloads d
JOIN items i ON i.id = d.item_id
WHERE d.status = 'pending'
ORDER BY d.priority DESC, d.created_at ASC
LIMIT 1;
-- Get download progress for UI
SELECT
d.status,
COUNT(*) as count,
SUM(d.file_size) as total_size,
SUM(d.bytes_downloaded) as downloaded
FROM downloads d
WHERE d.user_id = ?
GROUP BY d.status;
```
### Sync queue processing
```sql
-- Get pending sync operations (oldest first)
SELECT * FROM sync_queue
WHERE status = 'pending'
AND attempts < max_attempts
ORDER BY created_at ASC
LIMIT 10;
-- Mark operation complete
UPDATE sync_queue
SET status = 'completed', completed_at = CURRENT_TIMESTAMP
WHERE id = ?;
```
## Data Flow
### Online Mode
```mermaid
flowchart TB
subgraph OnlineMode["Online Mode"]
JellyfinServer["Jellyfin Server"]
OnlineRepo["OnlineRepo"]
SQLite["SQLite"]
HybridRepo["HybridRepository"]
UI["UI / Stores"]
JellyfinServer -->|"API Response"| OnlineRepo
OnlineRepo -->|"Cache"| SQLite
SQLite -->|"Sync"| JellyfinServer
OnlineRepo -->|"Response"| HybridRepo
SQLite -->|"Fallback"| HybridRepo
HybridRepo --> UI
end
```
### Offline Mode
```mermaid
flowchart TB
subgraph OfflineMode["Offline Mode"]
OfflineRepo["OfflineRepo"]
SQLite2["SQLite"]
SyncQueue["sync_queue<br/>(Queued for later)"]
HybridRepo2["HybridRepository"]
UI2["UI / Stores"]
OfflineRepo <-->|"Query"| SQLite2
SQLite2 -->|"Mutations"| SyncQueue
OfflineRepo --> HybridRepo2
HybridRepo2 --> UI2
end
```
### Sync on Reconnect
```mermaid
flowchart LR
NetworkRestored["Network restored"]
SyncService["SyncService"]
SyncQueue2["sync_queue"]
JellyfinAPI["Jellyfin API"]
MarkSynced["Mark synced"]
NetworkRestored --> SyncService
SyncService -->|"Read"| SyncQueue2
SyncQueue2 -->|"Send"| JellyfinAPI
JellyfinAPI -->|"Success"| MarkSynced
MarkSynced --> SyncService
```
## Storage Estimates
| Content Type | Metadata Size | Thumbnail Size | Media Size |
|--------------|---------------|----------------|------------|
| Song | ~2 KB | ~50 KB (300px) | 5-15 MB |
| Album (12 tracks) | ~30 KB | ~100 KB | 60-180 MB |
| Movie | ~5 KB | ~200 KB | 1-8 GB |
| Episode | ~3 KB | ~100 KB | 300 MB - 2 GB |
| Full music library (5000 songs) | ~10 MB | ~250 MB | 25-75 GB |
## Rust Module Structure
```
src-tauri/src/storage/
├── mod.rs # Module exports, Database struct
├── schema.rs # Table definitions, migrations
├── models.rs # Rust structs matching tables
├── queries/
│ ├── mod.rs
│ ├── items.rs # Item CRUD operations
│ ├── user_data.rs # User data operations
│ ├── downloads.rs # Download queue operations
│ └── sync.rs # Sync queue operations
└── sync/
├── mod.rs # SyncService
├── manager.rs # Background sync manager
└── operations.rs # Individual sync operation handlers
```
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# Security
## Authentication Token Storage
Access tokens are **not** stored in the SQLite database. Instead, they are stored using platform-native secure storage:
```mermaid
flowchart TB
LoginSuccess["Login Success"]
KeyringCheck{"System Keyring<br/>Available?"}
OSCredential["Store in OS Credential Manager<br/>- Linux: libsecret/GNOME Keyring<br/>- macOS: Keychain<br/>- Windows: Credential Manager<br/>- Android: EncryptedSharedPrefs"]
EncryptedFallback["Encrypted File Fallback<br/>(AES-256-GCM)"]
LoginSuccess --> KeyringCheck
KeyringCheck -->|"Yes"| OSCredential
KeyringCheck -->|"No"| EncryptedFallback
```
**Key Format:**
```
jellytau::{server_id}::{user_id}::access_token
```
**Rationale:**
- Tokens in SQLite would be readable if the database file is accessed
- System keyrings provide OS-level encryption and access control
- Fallback ensures functionality on minimal systems without a keyring daemon
## Secure Storage Module
**Location**: `src-tauri/src/secure_storage/` (planned)
```rust
pub trait SecureStorage: Send + Sync {
fn store(&self, key: &str, value: &str) -> Result<(), SecureStorageError>;
fn retrieve(&self, key: &str) -> Result<Option<String>, SecureStorageError>;
fn delete(&self, key: &str) -> Result<(), SecureStorageError>;
}
// Platform implementations
pub struct KeyringStorage; // Uses keyring crate
pub struct EncryptedFileStorage; // AES-256-GCM fallback
```
## Network Security
| Aspect | Implementation |
|--------|----------------|
| Transport | HTTPS required for all Jellyfin API calls |
| Certificate Validation | System CA store (configurable for self-signed) |
| Token Transmission | Bearer token in `Authorization` header only |
| Token Refresh | Handled by Jellyfin server (long-lived tokens) |
| Android cleartext | `res/xml/network_security_config.xml` blocks cleartext everywhere except `127.0.0.1` (the loopback media server, DR-137/DR-138). The manifest's `usesCleartextTraffic` is ignored once the config is present, so the config is the single authority |
| Android WebView | `mixedContentMode = COMPATIBILITY` with `allowFileAccess`/`allowContentAccess` both `false` (DR-199). These are the second half of the cleartext policy: `ALWAYS_ALLOW` re-opened by hand what the network security config closes. Change the two together |
## Webview Content Security Policy
`app.security.csp` in `tauri.conf.json` (TRACES: UR-012, UR-071 | DR-198). It was
`null` — CSP disabled — which meant any script that reached the web layer
inherited the full IPC surface. Tauri computes the header from this value when it
serves the embedded HTML, injecting a nonce for SvelteKit's inline bootstrap
script, so `script-src` needs no `'unsafe-inline'`.
```
default-src 'self';
script-src 'self';
style-src 'self' 'unsafe-inline';
font-src 'self' data:;
img-src 'self' data: blob: asset: http://asset.localhost http: https:;
media-src 'self' blob: asset: http://asset.localhost http://127.0.0.1:* http: https:;
connect-src 'self' ipc: http://ipc.localhost http: https:;
worker-src 'self' blob:;
object-src 'none'; frame-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'
```
| Directive | Why |
|-----------|-----|
| `default-src 'self'` | Everything not named below is same-origin only. |
| `script-src 'self'` | The genuinely restrictive half. Bundled JS only; Tauri's build-time nonce covers the one inline `<script>` in `index.html`. Adding `'unsafe-inline'` here would silently do nothing anyway — a nonce in a directive voids it. |
| `style-src 'self' 'unsafe-inline'` | Svelte compiles `style="…"` attributes into markup, including `app.html`'s `display: contents` wrapper, and CSP treats a style *attribute* as inline. Safe only while no `<style>` **element** survives into `index.html`: Tauri would nonce it, and the nonce would then void `'unsafe-inline'`. The production build extracts all CSS to files, so it currently has none. |
| `img-src` | Thumbnails come from two places: the asset protocol (`asset://localhost/…` on Linux/macOS, `http://asset.localhost/…` on Windows/Android — the same protocol, named differently by `convertFileSrc`) and, on a cache miss, straight from the Jellyfin server. `data:`/`blob:` cover inline and generated images. |
| `media-src` | `<video>`/`<audio>` sources: HLS transcodes and progressive streams from the server, the token-guarded loopback media server on `http://127.0.0.1:<random port>` (DR-137), and `blob:` for the MSE object URL hls.js attaches. |
| `connect-src` | `ipc:` / `http://ipc.localhost` is Tauri's `invoke` transport (custom scheme on Linux/macOS, `http` host on Windows/Android) — without it every command is blocked. `http:`/`https:` is hls.js fetching manifests and segments; ordinary API traffic goes through Rust and is not subject to CSP. |
| `worker-src 'self' blob:` | hls.js runs its demuxer in a worker built from a blob (`enableWorker: true`). Without `blob:` it falls back to main-thread demuxing — playback survives but costs more CPU. |
| `object-src`, `frame-src` = `'none'` | No plugins, no iframes; both are classic injection sinks. |
| `base-uri 'self'`, `form-action 'self'`, `frame-ancestors 'none'` | Block `<base>` hijacking, form exfiltration and framing. `frame-ancestors` is only honoured when the policy is delivered as a header, which is platform-dependent; it is harmless where it is not. |
**`img-src`/`media-src`/`connect-src` are deliberately permissive.** The Jellyfin
origin is typed in by the user at run time and is routinely plain `http` on a
LAN, so it cannot be enumerated at build time. `http: https:` is a wide grant for
*data* — but it still bars `file:`, `filesystem:` and scripting schemes, and it
does not touch `script-src`, which is where an injected origin would actually
hurt. A run-time policy naming the server exactly was considered and rejected:
Tauri derives the header from immutable config at the moment it serves the HTML,
so it would mean rebuilding the config and reloading the webview whenever the
user adds or switches a server, to constrain a destination the user chooses
anyway.
`devCsp` mirrors the policy with `'unsafe-inline' 'unsafe-eval'` on `script-src`
and `ws:`/`wss:` on `connect-src`, because the Vite dev server injects styles and
code and drives HMR over a websocket. It applies only to `tauri dev`.
### Asset protocol scope
`app.security.assetProtocol.scope` is `$APPDATA/thumbnails/**` — not the storage
root. `imageCache.ts` is the only `convertFileSrc` caller left in the frontend:
downloaded media moved to the loopback media server in DR-137, and downloaded
audio is opened by MPV/ExoPlayer directly from its path. The old `$APPDATA/**`
grant let the webview read the SQLite database and the encrypted-token fallback
file alongside the thumbnails it actually needs.
If a new feature hands the webview a local file, widen this scope to that
subdirectory specifically; a path outside it resolves to nothing and the webview
reports `NETWORK_NO_SOURCE` (which is exactly how DR-134's failure presented).
## Local Data Protection
| Data Type | Protection |
|-----------|------------|
| Access Tokens | System keyring or encrypted file |
| Database (SQLite) | Plaintext (metadata only, no secrets) |
| Downloaded Media | Filesystem permissions only |
| Cached Thumbnails | Filesystem permissions only |
## Path Confinement and Input Binding
Two classes of defect, both of the same *shape*: a value that arrived from
outside decided something it should not, at a site whose neighbours a few lines
away already did it correctly.
### Filesystem path confinement
| Surface | Rule | TRACES |
|---------|------|--------|
| Thumbnail cache | The filename is built from `item_id`, `image_type` and `tag`; all three are sanitised (non-alphanumerics → `_`), and the resolved path is checked with `starts_with(cache_dir)` **at the point of use** | DR-210 |
| Downloads | `file_path` and `target_dir` are sanitised inside `download_item` itself, not only in `download_item_and_start` — the latter is what made the existing guard bypassable rather than absent | DR-211 |
Two mechanics worth remembering, because both are easy to get subtly wrong:
- `Path::join` **neither folds `..` nor keeps the base when handed an absolute
path**. Confinement therefore has to be checked *after* the join, not before.
- Sanitising is **per path component**. Whole-string sanitising would rewrite
`downloads/x.mp3` to `downloads_x.mp3` and relocate every existing download.
The database keeps both the raw key and the resolved path, so lookups still match
and pre-existing rows still resolve.
### Query and URL construction
Caller-supplied values are **bound or encoded**, never interpolated (DR-212):
- The offline `get_items` item-type filter uses parameter placeholders rather
than formatting `IN ('a','b')`.
- `build_get_items_endpoint` encodes `ParentId` / `IncludeItemTypes` / `SortBy` /
`SortOrder`. Encoding is **per element** and list separators stay unencoded,
because Jellyfin splits these parameters on the comma.
- `player_set_volume` clamps at the command boundary — it previously accepted
NaN and out-of-range floats even though every backend clamps internally.
## Security Considerations
1. **No Secrets in SQLite**: The database contains only non-sensitive metadata
2. **Token Isolation**: Each user/server combination has a separate token entry
3. **Logout Cleanup**: Token deletion from secure storage on logout
4. **No Token Logging**: Tokens are never written to logs or debug output
5. **IPC Security**: Tauri's IPC uses structured commands, not arbitrary code execution
6. **Webview Containment**: A restrictive `script-src` keeps injected script off the IPC surface; the asset protocol is scoped to the thumbnail cache only (see above)
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# JellyTau Software Architecture
This document describes the current architecture of JellyTau, a cross-platform Jellyfin client built with Tauri, SvelteKit, and Rust.
**Last Updated:** 2026-06-20
## Architecture Overview
JellyTau uses a client-server architecture: business logic lives in a comprehensive Rust backend, while a UI-rich Svelte frontend handles presentation and interaction.
### Architecture Principles
- **Business Logic in Rust**: Core logic — playback, repository, sync, downloads, connectivity — lives in Rust for performance, reliability, and type safety.
- **Presentation in Svelte**: The frontend (~20.5k non-test lines) owns UI, layout, navigation, and interaction state and invokes Rust commands. It is intentionally UI-heavy, **not** a thin wrapper. Largest pieces: components + routes (~14.6k lines), stores (~3.4k), api/services/utils (~2.4k); `VideoPlayer.svelte` alone is ~1.6k lines.
- **Events + Polling hybrid**: Rust emits events the frontend listens to, and the UI also polls status on short intervals in a few hot spots (e.g. queue status in `library/+layout.svelte`, playback progress in `VideoPlayer.svelte`).
- **Unified player boundary**: UI components control playback only through the frontend facade `src/lib/player/index.ts` (`playerController`), never by calling `commands.player*` directly. Webview-rendered HTML5 video reports its state back into Rust via `src/lib/player/html5Adapter.ts` and the `player_report_*` commands, so the `PlayerController` stays the single source of truth in both native (MPV/ExoPlayer) and HTML5 modes (see [05-platform-backends.md](05-platform-backends.md)).
- **Handle-Based Resources**: UUID handles for stateful Rust objects.
- **Cache-First**: Parallel queries with intelligent fallback.
- **Single source of truth for reachability**: Server reachability is derived from the outcome of *real repository traffic*, not a side-channel poller. The `OnlineRepository` reports each server result to the `ConnectivityMonitor` (classified via `RepoError`), which applies a time-window debounce before declaring the server offline and recovers instantly on the first success. The standalone `/System/Info/Public` probe runs *only while offline*, as a recovery detector for idle sessions.
- **Poison-tolerant locking**: Shared `std::sync` state is accessed via the `MutexSafe`/`RwLockSafe` helpers in `utils/lock.rs`, which recover a poisoned lock instead of cascading a panic across the player.
- **Graceful backend init**: If a native player backend (MPV/ExoPlayer) fails to initialize, the app falls back to a no-op backend and emits a `backend-init-failed` event rather than crashing.
```mermaid
flowchart TB
subgraph Frontend["Svelte Frontend"]
subgraph Stores["Stores (Thin Wrappers)"]
auth["auth"]
player["player"]
queue["queue"]
library["library"]
connectivity["connectivity"]
playbackMode["playbackMode"]
end
subgraph Components
playerComp["player/"]
libraryComp["library/"]
Search["Search"]
end
subgraph Routes
routeLibrary["/library"]
routePlayer["/player"]
routeRoot["/"]
end
subgraph API["API Layer (Thin Client)"]
RepositoryClient["RepositoryClient<br/>(Handle-based)"]
JellyfinClient["JellyfinClient<br/>(Helper)"]
end
end
Frontend -->|"Tauri IPC (invoke)"| Backend
subgraph Backend["Rust Backend (Business Logic)"]
subgraph Commands["Tauri Commands (90+)"]
PlayerCmds["player.rs"]
RepoCmds["repository.rs (27)"]
PlaybackModeCmds["playback_mode.rs (5)"]
StorageCmds["storage.rs"]
ConnectivityCmds["connectivity.rs (7)"]
end
subgraph Core["Core Modules"]
MediaSessionManager["MediaSessionManager<br/>(Audio/Movie/TvShow/Idle)"]
PlayerController["PlayerController<br/>+ PlayerBackend<br/>+ QueueManager"]
Repository["Repository Layer<br/>HybridRepository (cache-first)<br/>OnlineRepository (HTTP)<br/>OfflineRepository (SQLite)"]
PlaybackModeManager["PlaybackModeManager<br/>(Local/Remote/Idle)"]
ConnectivityMonitor["ConnectivityMonitor<br/>(Adaptive polling)"]
HttpClient["HttpClient<br/>(Exponential backoff retry)"]
end
subgraph Storage["Storage Layer"]
DatabaseService["DatabaseService<br/>(Async trait)"]
SQLite["SQLite Database<br/>(13 tables)"]
end
Commands --> Core
Core --> Storage
Repository --> HttpClient
Repository --> DatabaseService
Repository -->|"reports server outcome<br/>(success / RepoError)"| ConnectivityMonitor
end
```
> The `Repository --> ConnectivityMonitor` edge is the source of truth for the offline/online banner: every server request the user actually makes updates reachability. The monitor's own polling is now an offline-only recovery probe (see [07-connectivity.md](07-connectivity.md)).
---
## Detailed Documentation
Each major subsystem is documented in its own file in this directory:
| Document | Contents |
|----------|----------|
| [01 - Rust Backend](01-rust-backend.md) | Media session state machine, player state machine, playback mode, media items, queue manager, favorites (marking + browsing), player backend trait, player controller, playlist system, **domain vocabulary owned by Rust** (search scope, library exclusions, streaming quality ladder), **background workers** (catalog indexer, drains), Tauri commands |
| [02 - Svelte Frontend](02-svelte-frontend.md) | Store structure, music library navigation, playback reporting, repository architecture, playback mode system, database service abstraction, component hierarchy, MiniPlayer, sleep timer, auto-play, navigation guard, playlist management UI, library mosaic, series/episode navigation, downloaded browse, safe-area insets, native-video store, logging |
| [03 - Data Flow](03-data-flow.md) | Repository query flow (cache-first), locally-indexed search, playback initiation, playback mode transfer, queue navigation, volume control |
| [04 - Type Sync & Threading](04-type-sync-and-threading.md) | Rust/TypeScript type synchronization, Tauri v2 IPC parameter naming convention, thread safety patterns |
| [05 - Platform Backends](05-platform-backends.md) | Player events system, HTML5 video adapter, MpvBackend (Linux), ExoPlayerBackend (Android) incl. audio settings parity, **native video compositing**, MediaSession & remote volume, album art caching, backend initialization |
| [06 - Downloads & Offline](06-downloads-and-offline.md) | Download manager, download worker, smart caching engine, **one storage model (cache entries are downloads)**, offline catalog visibility, download/offline commands, player integration, frontend store, UI components |
| [07 - Connectivity](07-connectivity.md) | HTTP client with retry logic, connectivity monitor, network resilience architecture |
| [08 - Database Design](08-database-design.md) | Entity relationships, all table definitions (servers, users, libraries, items, user_data, downloads, media_streams, sync_queue, thumbnails, playlists), key queries, data flow diagrams, storage estimates |
| [09 - Security](09-security.md) | Authentication token storage, secure storage module, network security, webview CSP + asset-protocol scope, **path confinement and input binding**, local data protection |
---
## File Structure Summary
```
src-tauri/src/
├── lib.rs # Tauri app setup, state initialization
├── commands/ # Tauri command handlers (~245 #[tauri::command] fns)
│ ├── mod.rs # Command exports
│ ├── player/ # Player commands: queue, remote, session, settings, timers
│ ├── repository.rs # Repository commands (items, search, favourites, disk usage)
│ ├── catalog.rs # Catalog sync + the background index pass
│ ├── favorites.rs # Offline favourite drain
│ ├── library.rs # Library listing + folder exclusions
│ ├── playlist.rs # Playlist commands
│ ├── playback_mode.rs # Local/remote transfer
│ ├── playback_reporting.rs
│ ├── connectivity.rs # Connectivity commands
│ ├── storage/ # Storage & database commands: people, series_prefs, thumbnails
│ ├── download/ # Download commands: mod, pinning, smart_cache
│ ├── offline.rs # Offline commands
│ ├── device.rs # Device id / capabilities
│ ├── sessions.rs # Remote sessions
│ ├── sync.rs # Sync queue commands
│ └── sync_drain.rs # Background sync-queue drain
├── repository/ # Repository pattern implementation
│ ├── mod.rs # MediaRepository trait, handle management
│ ├── types.rs # RepoError, Library, MediaItem, etc.
│ ├── hybrid.rs # HybridRepository with cache-first racing
│ ├── online.rs # OnlineRepository (HTTP API)
│ └── offline.rs # OfflineRepository (SQLite queries)
├── playback_mode/ # Playback mode manager
│ └── mod.rs # PlaybackMode enum, transfer logic
├── connectivity/ # Connectivity monitoring
│ └── mod.rs # ConnectivityMonitor, adaptive polling
├── jellyfin/ # Jellyfin API client
│ ├── mod.rs # Module exports
│ ├── http_client.rs # HTTP client with retry logic
│ └── client.rs # JellyfinClient for API calls
├── storage/ # Database layer
│ ├── mod.rs # Database struct, migrations
│ ├── db_service.rs # DatabaseService trait (async wrapper)
│ ├── schema.rs # Table definitions
│ └── queries/ # Query modules
├── download/ # Download manager module
│ ├── mod.rs # DownloadManager, DownloadInfo, DownloadTask
│ ├── worker.rs # DownloadWorker, HTTP streaming, retry logic
│ ├── events.rs # DownloadEvent enum
│ └── cache.rs # SmartCache, CacheConfig, LRU eviction
└── player/ # Player subsystem
├── mod.rs # PlayerController
├── session.rs # MediaSessionManager, MediaSessionType
├── state.rs # PlayerState, PlayerEvent
├── media.rs # MediaItem, MediaSource, MediaType
├── queue.rs # QueueManager, RepeatMode
├── backend.rs # PlayerBackend trait, NullBackend
├── events.rs # PlayerStatusEvent, TauriEventEmitter
├── mpv/ # Linux MPV backend
│ ├── mod.rs # MpvBackend implementation
│ └── event_loop.rs # Dedicated thread for MPV operations
└── android/ # Android ExoPlayer backend
└── mod.rs # ExoPlayerBackend + JNI bindings
src/lib/
├── api/ # Thin API layer (~200 lines total)
│ ├── types.ts # TypeScript type definitions
│ ├── repository-client.ts # RepositoryClient wrapper (~100 lines)
│ ├── client.ts # JellyfinClient (helper for streaming)
│ └── sessions.ts # SessionsApi (remote session control)
├── player/ # Unified player boundary (frontend)
│ ├── index.ts # playerController facade — the only write-side entry point for playback
│ └── html5Adapter.ts # Reports webview <video> DOM events back into Rust (player_report_*)
├── services/
│ ├── playerEvents.ts # Tauri event listener for player events
│ └── playbackReporting.ts # Thin wrapper (~50 lines)
├── stores/ # Thin reactive wrappers over Rust commands
│ ├── index.ts # Re-exports
│ ├── auth.ts # Auth store (calls Rust commands)
│ ├── player.ts # Player store
│ ├── queue.ts # Queue store
│ ├── library.ts # Library store
│ ├── playbackMode.ts # Playback mode store (~150 lines)
│ ├── connectivity.ts # Connectivity store (~250 lines)
│ └── downloads.ts # Downloads store with event listeners
└── components/
├── Search.svelte
├── player/ # Player UI components
├── playlist/ # Playlist modals (Create, AddTo)
├── sessions/ # Remote session control UI
├── downloads/ # Download UI components
└── library/ # Library UI components + PlaylistDetailView
```
## Key Architecture Changes
**What moved to Rust (~3,500 lines of business logic):**
1. **HTTP Client** (338 lines) - Retry logic with exponential backoff
2. **Connectivity Monitor** (301 lines) - Reachability derived from real repository traffic, time-window debounce, offline-only recovery probe, event emission
3. **Repository Pattern** (1061 lines) - Cache-first hybrid with parallel racing
4. **Database Service** - Async wrapper preventing UI freezing
5. **Playback Mode** (303 lines) - Local/remote transfer coordination
**Svelte/TypeScript frontend (~20.5k non-test lines, plus ~9.6k test lines):**
- Components + routes (~14.6k lines) — UI and presentation
- Stores (~3.4k lines) — reactive state that invokes Rust commands and listens for events
- api / services / utils (~2.4k lines) — typed clients, event listeners, conversion helpers
The frontend is genuinely UI-heavy; business decisions live in Rust, but the UI owns layout, navigation, and interaction state.
**Total Commands:** ~245 `#[tauri::command]` functions across 17 command modules
(~58k lines of Rust, ~37k non-test lines of TypeScript/Svelte).
> Counts and line totals in this file are periodic snapshots, not gates — the
> authority is the tree. Regenerate with
> `grep -rc '#\[tauri::command\]' src-tauri/src` and `wc -l`.
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# Building and Pushing the JellyTau Builder Image
This document explains how to create and push the pre-built builder Docker image to your registry for use in Gitea Act CI/CD.
## Prerequisites
- Docker installed and running
- Access to your Docker registry (e.g., `gitea.tourolle.paris`)
- Docker registry credentials configured (`docker login`)
## Building the Builder Image
### Step 1: Build the Image Locally
```bash
# From the project root
docker build -f Dockerfile.builder -t jellytau-builder:latest .
```
This creates a local image with:
- All system dependencies
- Rust with Android targets
- Android SDK and NDK
- Node.js and Bun
- All build tools pre-installed
### Step 2: Tag for Your Registry
Replace `gitea.tourolle.paris/dtourolle` with your actual registry path:
```bash
docker tag jellytau-builder:latest gitea.tourolle.paris/dtourolle/jellytau-builder:latest
```
### Step 3: Login to Your Registry
If not already logged in:
```bash
docker login gitea.tourolle.paris
```
### Step 4: Push to Registry
```bash
docker push gitea.tourolle.paris/dtourolle/jellytau-builder:latest
```
## Complete One-Liner
```bash
docker build -f Dockerfile.builder -t jellytau-builder:latest . && \
docker tag jellytau-builder:latest gitea.tourolle.paris/dtourolle/jellytau-builder:latest && \
docker push gitea.tourolle.paris/dtourolle/jellytau-builder:latest
```
## Verifying the Build
Check that the image was pushed successfully:
```bash
# List images in your registry (depends on registry API support)
docker search gitea.tourolle.paris/dtourolle/jellytau-builder
# Or pull and test locally
docker pull gitea.tourolle.paris/dtourolle/jellytau-builder:latest
docker run -it gitea.tourolle.paris/dtourolle/jellytau-builder:latest bun --version
```
## Using in CI/CD
The workflow at `.gitea/workflows/build-and-test.yml` automatically uses:
```yaml
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:latest
```
Once pushed, your CI/CD pipeline will use this pre-built image instead of installing everything during the build, saving significant time.
## Updating the Builder Image
When dependencies change (new Rust version, Android SDK update, etc.):
1. Update `Dockerfile.builder` with the new configuration
2. Rebuild and push with a new tag:
```bash
docker build -f Dockerfile.builder -t jellytau-builder:v1.2.0 .
docker tag jellytau-builder:v1.2.0 gitea.tourolle.paris/dtourolle/jellytau-builder:v1.2.0
docker push gitea.tourolle.paris/dtourolle/jellytau-builder:v1.2.0
```
3. Update the workflow to use the new tag:
```yaml
container:
image: gitea.tourolle.paris/dtourolle/jellytau-builder:v1.2.0
```
## Image Contents
The builder image includes:
- **Base OS**: Ubuntu 24.04
- **Languages**:
- Rust (stable) with targets: aarch64-linux-android, armv7-linux-androideabi, x86_64-linux-android
- Node.js 20.x
- OpenJDK 17 (for Android)
- **Tools**:
- Bun package manager
- Android SDK 34
- Android NDK 27.0.11902837
- Build essentials (gcc, make, etc.)
- Git, curl, wget
- libssl, libclang development libraries
- **Pre-configured**:
- Rust toolchain components (rustfmt, clippy)
- Android SDK/NDK environment variables
- All paths optimized for building
## Build Time
First build takes ~15-20 minutes depending on internet speed (downloads Android SDK/NDK).
Subsequent builds are cached and take seconds.
## Storage
The built image is approximately **4-5 GB**. Ensure your registry has sufficient storage.
## Troubleshooting
### "Image not found" in CI
- Verify the image name matches exactly in the workflow
- Check that the image was successfully pushed: `docker push` output should show successful layers
- Ensure Gitea has access to your registry (check network/firewall)
### Build fails with "command not found"
- The image may not have finished pushing. Wait a few moments and retry the CI job.
- Check that all layers were pushed successfully in the push output.
### Registry authentication in CI
If your registry requires credentials in CI:
1. Create a deploy token in your registry
2. Add to Gitea secrets as `REGISTRY_USERNAME` and `REGISTRY_TOKEN`
3. Use in workflow:
```yaml
- name: Login to Registry
run: |
docker login gitea.tourolle.paris -u ${{ secrets.REGISTRY_USERNAME }} -p ${{ secrets.REGISTRY_TOKEN }}
```
## References
- [Docker Build Documentation](https://docs.docker.com/build/)
- [Docker Push Documentation](https://docs.docker.com/engine/reference/commandline/push/)
- [Dockerfile Reference](https://docs.docker.com/engine/reference/builder/)
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# Desktop packaging (Linux, Arch, Windows)
How to produce distributable desktop packages for JellyTau. All three flows can
run in Docker so no host toolchain setup is required. Outputs land in `./dist`.
## One builder image (shared with CI)
The deb/rpm and Windows-cross flows build on the **unified registry builder**
([../Dockerfile.builder](../../Dockerfile.builder) →
`gitea.tourolle.paris/dtourolle/jellytau-builder`), the same image CI uses. It
carries every packaging tool: Android SDK/NDK, `rpm`/`file` (Linux bundler),
`cargo-xwin` + `lld` + `llvm` + `nsis` + the `x86_64-pc-windows-msvc` rust target
(Windows). There is **one** dependency source of truth — no per-stage tool
installs.
The desktop stages in [../Dockerfile](../../Dockerfile) are thin `FROM
${BUILDER_IMAGE}` environments; the actual build runs at container-run time on
your bind-mounted source (like the `dev` service), so source edits need no image
rebuild.
**If you changed `Dockerfile.builder`** (e.g. added a tool), rebuild and push it
first, or the packaging flows use the stale registry image:
```bash
scripts/build-builder-image.sh # build + push :latest to the registry
# ...or iterate locally without pushing:
docker build -f Dockerfile.builder -t jellytau-builder:latest .
BUILDER_IMAGE=jellytau-builder:latest bun run docker:build:windows
```
Arch uses a separate `archlinux` image ([../Dockerfile.arch](../../Dockerfile.arch))
because `makepkg` is Arch-specific — it is not part of the unified builder.
| Target | Format | Docker command | Functional? |
|--------|--------|----------------|-------------|
| Debian/Ubuntu, Fedora | `.deb`, `.rpm` | `bun run docker:build:linux` | ✅ yes |
| Arch Linux | `.pkg.tar.zst` | `bun run docker:build:arch` | ✅ yes |
| Windows | NSIS installer + `.exe` | `bun run docker:build:windows` | ✅ yes (unsigned) |
## Linux: deb + rpm
Tauri's bundler produces these natively. The build runs on the existing Ubuntu
builder image ([../Dockerfile](../../Dockerfile), `desktop-linux-build` stage):
```bash
bun run docker:build:linux # deb + rpm -> ./dist
# or, on a host with the Tauri Linux deps installed:
BUNDLES="deb,rpm" scripts/build-desktop-linux.sh
```
Runtime dependency: the app links libmpv (audio) and WebKitGTK (webview + HTML5
transcoded video). The deb/rpm declare these.
> Note: `appimage` is also a valid Tauri target if you want a portable bundle —
> add it to `BUNDLES`.
## Arch Linux: pacman package
**Tauri has no `pacman` bundle target** (as of tauri-cli 2.9.x — valid targets
are deb/rpm/appimage/msi/nsis/app/dmg). So we ship a hand-written PKGBUILD in
[../packaging/arch/PKGBUILD](../../packaging/arch/PKGBUILD) and build it with
`makepkg` on an Arch base image ([../Dockerfile.arch](../../Dockerfile.arch)):
```bash
bun run docker:build:arch # .pkg.tar.zst -> ./dist
```
The PKGBUILD is AUR-ready: swap its `source=()` for a release tarball/VCS URL to
publish. Runtime deps: `webkit2gtk-4.1`, `mpv`, `gtk3`, `libayatana-appindicator`.
`makepkg` refuses to run as root, so the Docker stage builds as a non-root
`builder` user. Because the image `COPY`s the source at build time, the
`arch-build` compose service does **not** bind-mount the repo — rebuild the image
to pick up source changes.
## Windows: NSIS installer cross-compiled from Linux
Produces a working (unsigned) NSIS installer + `.exe` via the official Tauri
cross-compile path — the `x86_64-pc-windows-msvc` target driven by `cargo-xwin`.
Video plays via WebView2 and audio via the webview `<audio>` backend. See
[build-windows.md](build-windows.md) for the full explanation.
```bash
bun run docker:build:windows # NSIS installer + .exe -> ./dist
WIN_BUNDLES=none bun run docker:build:windows # exe only, skip bundling
```
The Docker `windows-cross` stage is a thin layer over the builder, which carries
`cargo-xwin` + `lld` + `llvm` + `nsis` + the `x86_64-pc-windows-msvc` target.
Cross-compilation is Tauri's "last resort" path (less tested than building on
Windows); a `windows-latest` CI job is the fallback if it misbehaves.
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# Build & Release Workflow
This document explains the automated build and release process for JellyTau.
## Overview
The CI/CD pipeline automatically:
1. ✅ Runs all tests (frontend + Rust)
2. ✅ Builds Linux binaries (AppImage + DEB)
3. ✅ Builds Android APK and AAB
4. ✅ Creates releases with artifacts
5. ✅ Tags releases with version numbers
## Workflow Triggers
### Automatic Trigger
When you push a version tag:
```bash
git tag v1.0.0
git push origin v1.0.0
```
The workflow automatically:
1. Runs tests
2. Builds both platforms
3. Creates a GitHub release with artifacts
4. Tags it as release/prerelease based on version
### Manual Trigger
In Gitea Actions UI:
1. Go to **Actions** tab
2. Click **Build & Release** workflow
3. Click **Run workflow**
4. Optionally specify a version
5. Workflow runs without creating a release
## Version Tagging
### Format
Version tags follow semantic versioning: `v{MAJOR}.{MINOR}.{PATCH}`
Examples:
- `v1.0.0` - Release version
- `v1.0.0-rc1` - Release candidate (marked as prerelease)
- `v1.0.0-beta` - Beta version (marked as prerelease)
- `v0.1.0-alpha` - Alpha version (marked as prerelease)
### Creating a Release
```bash
# Create and push a version tag
git tag v1.0.0 -m "Release version 1.0.0"
git push origin v1.0.0
# Or create from main branch
git tag -a v1.0.0 -m "Release version 1.0.0" main
git push origin v1.0.0
```
### Release Status
Versions containing `rc`, `beta`, or `alpha` are marked as **prerelease**:
```bash
git tag v1.0.0-rc1 # ⚠️ Prerelease
git tag v1.0.0-beta # ⚠️ Prerelease
git tag v1.0.0-alpha # ⚠️ Prerelease
git tag v1.0.0 # ✅ Full release
```
## Workflow Steps
### 1. Test Phase
Runs on all tags and manual triggers:
- Frontend tests (`vitest`)
- Rust tests (`cargo test`)
- TypeScript type checking
**Failure:** Stops workflow, no build/release
### 2. Build Linux Phase
Runs after tests pass:
- Installs system dependencies
- Builds with Tauri
- Generates:
- **AppImage** - Universal Linux binary
- **DEB** - Debian/Ubuntu package
**Output:** `artifacts/linux/`
### 3. Build Android Phase
Runs in parallel with Linux build:
- Installs Android SDK/NDK
- Configures Rust for Android targets
- Builds with Tauri
- Generates:
- **APK** - Android app package (installable)
- **AAB** - Android App Bundle (for Play Store)
**Output:** `artifacts/android/`
### 4. Create Release Phase
Runs after both builds succeed (only on version tags):
- Prepares release notes
- Downloads build artifacts
- Creates GitHub/Gitea release
- Uploads all artifacts
- Tags as prerelease if applicable
## Artifacts
### Linux Artifacts
#### AppImage
- **File:** `jellytau_*.AppImage`
- **Size:** ~100-150 MB
- **Use:** Run directly on any Linux distro
- **Installation:**
```bash
chmod +x JellyTau_*.AppImage
./JellyTau_*.AppImage
```
#### DEB Package
- **File:** `JellyTau_*.deb`
- **Size:** ~80-120 MB
- **Use:** Install on Debian/Ubuntu/similar
- **Installation:**
```bash
sudo dpkg -i JellyTau_*.deb
jellytau
```
- **Note:** the Debian package is named `jelly-tau` (Tauri kebab-cases
`productName`), while the command stays `jellytau`. The package declares
`Replaces`/`Conflicts`/`Provides: jellytau`, so upgrading from a release built
before the rename replaces it rather than installing a second copy.
#### RPM Package
- **File:** `JellyTau-*.rpm`
- **Use:** Install on Fedora/openSUSE/similar
- **Installation:**
```bash
sudo rpm -i JellyTau-*.rpm
jellytau
```
### Android Artifacts
#### APK
- **File:** `jellytau-release.apk`
- **Size:** ~60-100 MB
- **Use:** Direct installation on Android devices
- **Installation:**
```bash
adb install jellytau-release.apk
# Or sideload via file manager
```
#### AAB (Android App Bundle)
- **File:** `jellytau-release.aab`
- **Size:** ~50-90 MB
- **Use:** Upload to Google Play Console
- **Note:** Cannot be installed directly; for Play Store distribution
## Release Notes
Release notes are automatically generated with:
- Version number
- Download links
- Installation instructions
- System requirements
- Known issues link
- Changelog reference
## Build Matrix
| Platform | OS | Architecture | Format |
|----------|----|----|--------|
| **Linux** | Any | x86_64 | AppImage, DEB |
| **Android** | 8.0+ | arm64, armv7, x86_64 | APK, AAB |
## Troubleshooting
### Build Fails During Test Phase
1. Check test output in Gitea Actions
2. Run tests locally: `bun run test` and `bun run test:rust`
3. Fix failing tests
4. Create new tag with fixed code
### Linux Build Fails
1. Check system dependencies installed
2. Verify Tauri configuration
3. Check cargo dependencies
4. Clear cache: Delete `.cargo` and `target/` directories
### Android Build Fails
1. Check Android SDK/NDK setup
2. Verify Java 17 is installed
3. Check Rust Android targets: `rustup target list`
4. Clear cache and rebuild
### Release Not Created
1. Tag must start with `v` (e.g., `v1.0.0`)
2. Tests must pass
3. Both builds must succeed
4. Check workflow logs for errors
## GitHub Release vs Gitea
The workflow uses GitHub Actions SDK but is designed for Gitea. For Gitea-native releases:
1. Workflow creates artifacts
2. Artifacts are available in Actions artifacts
3. Download and manually create Gitea release, or
4. Set up Gitea API integration to auto-publish
## Customization
### Change Release Notes Template
Edit `.gitea/workflows/build-release.yml`, section `Prepare release notes`:
```yaml
- name: Prepare release notes
id: release_notes
run: |
# Add your custom release notes format here
echo "Custom notes" > release_notes.md
```
### Add New Platforms
To add macOS or Windows builds:
1. Add new `build-{platform}` job
2. Set appropriate `runs-on` runner
3. Add platform-specific dependencies
4. Update artifact upload
5. Include in `needs: [build-linux, build-android, build-{platform}]`
### Change Build Targets
Modify Tauri configuration or add targets:
```yaml
- name: Build for Linux
run: |
# Add target specification
bun run tauri build -- --target x86_64-unknown-linux-gnu
```
## Monitoring
### Check Status
1. Go to **Actions** tab in Gitea
2. View **Build & Release** workflow runs
3. Click specific run to see logs
### Notifications
Set up notifications for:
- Build failures
- Release creation
- Tag pushes
## Performance
### Build Times (Approximate)
- Test phase: 5-10 minutes
- Linux build: 10-15 minutes
- Android build: 15-20 minutes
- Total: 30-45 minutes
### Caching
Workflow caches:
- Rust dependencies (cargo)
- Bun node_modules
- Android SDK components
## Security
### Secrets
The workflow uses:
- `GITHUB_TOKEN` - Built-in, no setup needed
- No credentials needed for Gitea
### Verification
To verify build integrity:
1. Download artifacts
2. Verify signatures (if implemented)
3. Check file hashes
4. Test on target platform
## Best Practices
### Versioning
1. Follow semantic versioning: `v{MAJOR}.{MINOR}.{PATCH}`
2. Tag releases in git
3. Update CHANGELOG.md before tagging
4. Include release notes in tag message
### Testing Before Release
```bash
# Local testing before release
bun run test # Frontend tests
bun run test:rust # Rust tests
bun run check # Type checking
bun run tauri build # Local build test
```
### Documentation
1. Update [CHANGELOG.md](../../CHANGELOG.md) with changes
2. Update [README.md](../../README.md) with new features
3. Document breaking changes
4. Add migration guide if needed
## Example Release Workflow
```bash
# 1. Update version in relevant files (package.json, Cargo.toml, etc.)
vim package.json
vim src-tauri/tauri.conf.json
# 2. Update CHANGELOG
vim CHANGELOG.md
# 3. Commit changes
git add .
git commit -m "Bump version to v1.0.0"
# 4. Create annotated tag
git tag -a v1.0.0 -m "Release version 1.0.0
Features:
- Feature 1
- Feature 2
Fixes:
- Fix 1
- Fix 2"
# 5. Push tag to trigger workflow
git push origin v1.0.0
# 6. Monitor workflow in Gitea Actions
# Wait for tests → Linux build → Android build → Release
# 7. Download artifacts and test
# Visit release page and verify downloads
```
## References
- [Tauri Documentation](https://tauri.app/)
- [Semantic Versioning](https://semver.org/)
- [GitHub Release Best Practices](https://docs.github.com/en/repositories/releasing-projects-on-github/about-releases)
- [Android App Bundle](https://developer.android.com/guide/app-bundle)
- [AppImage Documentation](https://docs.appimage.org/)
---
**Last Updated:** 2026-02-13
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# Windows build
JellyTau targets Linux and Android primarily, but a working Windows build —
including an **NSIS installer cross-compiled from Linux** — is produced by the
Docker tooling. It is not yet a first-class release target (no code signing / CI
job / SMTC lockscreen), but it runs and plays media.
## How playback works on Windows
- **Video** — renders through the webview HTML5 `<video>` element (hls.js) on
*every* platform; on Windows that is WebView2 (Chromium/Edge), which plays HLS +
h264 fine. No Windows-specific code.
- **Audio-only (music)** — the native audio backends are libmpv (Linux) and
ExoPlayer (Android); neither exists on Windows. Instead
`create_player_backend()` in [../src-tauri/src/lib.rs](../../src-tauri/src/lib.rs)
uses `WebviewAudioBackend` on non-Linux/non-Android targets: it hands the stream
URL to a webview `<audio>` element (see
[../src/lib/services/webviewAudio.ts](../../src/lib/services/webviewAudio.ts)),
which reports state back through the same `player_report_*` round-trip the video
path uses. Pure Rust + Tauri events.
## Cross-compiling from Linux (MSVC + cargo-xwin)
We use the [official Tauri cross-compile path](https://v2.tauri.app/distribute/windows-installer/):
the **MSVC** target (`x86_64-pc-windows-msvc`) driven by
[`cargo-xwin`](https://github.com/rust-cross/cargo-xwin), which downloads the MSVC
CRT / Windows SDK headers and links with `lld`. MSVC is the target Tauri
officially supports for Windows (mingw/GNU is not), and — unlike GNU — it lets the
Tauri CLI bundle the **NSIS installer from a Linux host**.
> Why not mingw/GNU? The GNU target *does* link a valid `.exe`, but the Tauri CLI
> gates `--bundles` by the host OS unless it recognizes a real Windows build.
> `--runner cargo-xwin --target x86_64-pc-windows-msvc` is what flips it into
> Windows mode and enables the `nsis`/`msi` bundlers on Linux.
The builder image ([../Dockerfile.builder](../../Dockerfile.builder)) bakes in the
whole toolchain: the `x86_64-pc-windows-msvc` rust target, `cargo-xwin`, `lld`,
`llvm`, and `nsis`.
```bash
bun run docker:build:windows # NSIS installer + .exe -> ./dist
WIN_BUNDLES=none bun run docker:build:windows # exe only, skip bundling
```
Or directly on a host that has the toolchain:
```bash
scripts/build-windows-cross.sh # nsis installer + exe
WIN_BUNDLES=none scripts/build-windows-cross.sh # exe only
```
Under the hood the build runs:
```bash
tauri build --runner cargo-xwin --target x86_64-pc-windows-msvc --bundles nsis
```
Outputs:
- `.exe``src-tauri/target/x86_64-pc-windows-msvc/release/jellytau.exe`
- NSIS installer — `.../release/bundle/nsis/*-setup.exe`
(both copied to `./dist` when `OUTPUT_DIR` is set).
## Caveats
- **Cross-compilation is a last resort** per Tauri's own docs — it's less tested
than building on Windows. If it misbehaves, a `windows-latest` CI job or a
Windows VM building natively (`tauri build --bundles nsis`) is the fallback.
- **Code signing is not wired up** — the installer is unsigned, so Windows
SmartScreen will warn on first run.
## Outstanding for a first-class Windows release
1. Gapless/crossfade + SMTC (lockscreen) — currently no-ops in the webview audio
path.
2. Downloaded (`Local` source) file playback needs `convertFileSrc` on the
frontend; streaming works today.
3. Code signing + a Windows packaging CI job.
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# CI operations
How the pipeline is kept working: the builder image, the secrets it needs, the
gates that must stay required, and the things that only a human with access to
the Gitea instance can do.
CI is **Gitea Actions** (`.gitea/workflows/`) on `gitea.tourolle.paris`, not
GitHub.
## The workflows
| Workflow | Trigger | What it protects |
|---|---|---|
| [build-and-test.yml](../../.gitea/workflows/build-and-test.yml) | push/PR to `master` | Frontend + Rust gates, Android compile check, supply chain |
| [traceability-check.yml](../../.gitea/workflows/traceability-check.yml) | push/PR | Requirement coverage ratchet, dangling IDs |
| [build-release.yml](../../.gitea/workflows/build-release.yml) | tag `v*` | Builds, signs, publishes, and writes the update manifest |
| [publish-docs.yml](../../.gitea/workflows/publish-docs.yml) | push to `master` | Docs site on the `gitea-pages` branch |
## 🔴 CI installs no system tools
Every build, test and packaging **tool** lives in the Docker image the job runs
in. Never add `apt-get`, `rustup`, `sdkmanager`, or a `curl | tar -xz` of a
binary to a workflow step.
Fetching the project's *own declared dependencies* is not a toolchain install and
is fine: `bun install`, cargo pulling crates from the lockfile, `cargo deny`
fetching the RustSec advisory database. The distinction is tool versus data.
This rule has been broken twice, both times invisibly until something else
failed. `publish-docs.yml` downloaded mdBook from GitHub releases into
`/usr/local/bin` at job time — a hard dependency on GitHub's CDN being up
whenever docs were published. Both mdBook and the supply-chain tools are in the
image now.
## The builder image
`Dockerfile.builder``gitea.tourolle.paris/dtourolle/jellytau-builder`.
It carries: the pinned Rust toolchain plus rustfmt/clippy and the Android,
Windows-MSVC targets; bun and Node; the Android SDK/NDK and a local Gradle
distribution; Linux desktop and packaging deps (WebKitGTK, libmpv, rpm, NSIS,
cargo-xwin); and the tooling — `cargo-deny`, `cargo-cyclonedx`, `mdbook`.
Arch packages build in a separate `Dockerfile.arch`, because `makepkg` is
Arch-specific.
### Tags are pinned, and why
Workflows name an **immutable dated tag** (`:2026.08`), never `:latest`. While
every job said `:latest`, rebuilding the image silently changed what every build
compiled against — including a rebuild of an old release tag, which is the
opposite of reproducible.
`:latest` is still pushed alongside, for local `docker compose` runs and manual
pulls.
Date tags rather than per-commit SHA tags on purpose: the runner shares a 74 GB
disk with two other projects, and SHA-tagged images accumulated there until it
filled. Keep a couple of dated tags live and prune the rest.
### Changing the image
The order matters — CI breaks if the workflow lands before the image exists.
A caveat learned the hard way: the *trailing* layer is only fast for `cargo
install` tools. Adding an **apt** package invalidates the packaging layer, which
sits above the `cargo-xwin`/`cargo-deny` installs, so those recompile too — a
~20 minute rebuild rather than ~2.
```bash
# 1. Edit Dockerfile.builder. Put new tools in the TRAILING layer: it exists so
# a tool change is a ~2 min rebuild instead of ~15.
# 2. Build and push, tagged with the new month:
./scripts/build-builder-image.sh 2026.09
# 3. Repoint every workflow at the new tag, in the same commit as whatever
# needed the new tool:
sed -i 's|jellytau-builder:2026.08|jellytau-builder:2026.09|g' .gitea/workflows/*.yml
# 4. Verify the tools are actually in it:
docker run --rm gitea.tourolle.paris/dtourolle/jellytau-builder:2026.09 \
-c "cargo deny --version; mdbook --version"
```
🔴 The Rust version is pinned in **two** places that must agree:
`RUST_VERSION` in `Dockerfile.builder` and `channel` in
`src-tauri/rust-toolchain.toml`. If they drift, rustup downloads the pinned
toolchain inside the job — a toolchain install in CI. Bump both, rebuild, push,
then merge.
## Tauri plugin versions are pinned in pairs
Every Tauri plugin exists twice: a Rust crate in `src-tauri/Cargo.toml` and an
npm package in `package.json`. **The Tauri CLI refuses to build when the two are
on different minor versions** — not a warning, a hard stop before compilation.
Both sides are therefore pinned *exactly* (`"2.8.0"`, not `"^2.8.0"`). A caret
range is what let them drift apart in the first place: `bun add` took the latest
npm package while cargo held an older crate, and nothing noticed until a release
build refused to start.
Nothing in `build-and-test.yml` runs `tauri build` — that happens only on a tag —
so this class of breakage used to be invisible until release day. The
`Check Tauri plugin versions match` step runs `tauri info`, which performs the
same comparison without building.
To upgrade a plugin, move **both** sides together and re-run that step. Expect
the Rust side to be the constraint: a newer plugin crate may pull a large
transitive upgrade (bumping `tauri-plugin-log` to 2.9.0 also moved `wry`,
`wasm-bindgen`, `web-sys` and `webkit2gtk`), which touches the webview and
therefore video playback. That is a change to make deliberately, with a full
build and a playback check — not one to slip into a release.
## AppImage needs more than the Rust toolchain
`linuxdeploy` (which Tauri downloads at build time to assemble the AppImage)
shells out to distro tools that a minimal server image does not have. It aborts
the whole bundle on the first one missing:
```
failed to bundle project: xdg-open binary not found
```
The image therefore carries `xdg-utils`, `desktop-file-utils` and `zsync`. This
is a class of failure that **cannot be caught by building locally**: a developer
machine is a desktop and has all three, so the AppImage builds there and fails in
CI. It cost one release build to find.
Tauri's AppImage bundler also downloads `linuxdeploy`, `AppRun` and two plugin
scripts from GitHub during the build. That is Tauri's behaviour, not ours, but it
means an AppImage build depends on GitHub being reachable from the runner.
## Secrets
Managed with the `tea` CLI (`tea actions secrets list`) or the repo settings UI.
| Secret | Used by | Notes |
|---|---|---|
| `ANDROID_KEYSTORE_BASE64` | release | Base64 of the release keystore |
| `ANDROID_KEYSTORE_PASSWORD` | release | |
| `ANDROID_KEY_ALIAS` | release | |
| `ANDROID_KEY_PASSWORD` | release | |
| `TAURI_SIGNING_PRIVATE_KEY` | release | minisign key for the desktop updater |
| `TAURI_SIGNING_PRIVATE_KEY_PASSWORD` | release | |
| `GITEA_TOKEN` | release, docs | PAT; falls back to the auto-provided token |
The updater keypair's public half is committed in `src-tauri/tauri.conf.json`
that one is meant to be public; it is what clients verify against. The private
half exists in the Gitea secret and in the maintainer's local `.env` (which is
gitignored) and at `~/.tauri/jellytau.key`.
**Losing the private key means losing the ability to ship updates to installed
desktop clients**, because they will only accept payloads signed by the key
matching the public key they were built with. Recovering means generating a new
pair, shipping a build carrying the new public key, and telling everyone on an
older build to reinstall by hand. Back it up.
## Required status checks
Gitea → repo Settings → Branches → protect `master`, requiring:
- `Run Tests`
- `Android Compile Check`
- `Supply Chain`
- the traceability job
Without branch protection, every gate in this document is advisory: a push
straight to `master` lands whether or not CI is red. That is the state the repo
was in for its whole history before this was set up.
## The runner
One self-hosted runner, one ~74 GB disk shared with two other projects. It fills,
and when it does the symptoms are misleading: cargo dying mid-link, docker
refusing to pull, `actions/cache` quietly not saving — anything except an obvious
out-of-space error. Check the disk first.
There is deliberately no scheduled job watching this. On a single-slot runner a
daily job occupies the slot and pulls the builder image to run `df`, and `df`
inside a container does not reliably describe the host's disk anyway — it would
cost real build capacity to report a number that might be wrong. Check it by hand
on the runner:
```bash
df -h /
docker system df -v
```
When it does fill:
```bash
docker image prune -a
docker volume prune -a # the -a matters: without it, NAMED volumes are kept,
# which is exactly how this filled up unnoticed
```
Never cache `src-tauri/target` — it is ~16 GB, and caching it under several keys
is what filled the disk at ~1.15 GB/day. The workflows cache only the cargo
registry index and `.crate` tarballs; cargo re-extracts `registry/src` for free.
## Release verification
The steps that catch a broken release before users do are in
[release-checklist.md](../release-checklist.md) — in particular the update path:
`latest.json` must be live on the `updater` branch, both platform entries must
carry a non-empty signature, and the previous release should be installed and
asked to update to the new one.
## Bus factor
The Gitea instance holds the canonical remote, the signing secrets, the container
registry and the CI runner. **It is not backed up as part of this repository, and
nothing in this repository can restore it.** That is the largest single risk to
the project — larger than any gate in this document — and the backup lives
outside it.
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# Docker & CI/CD Setup for JellyTau
This document explains how to use the Docker configuration and Gitea Act CI/CD pipeline for building and testing JellyTau.
## Overview
The setup includes:
- **Dockerfile.builder**: Pre-built image with all dependencies (push to your registry)
- **Dockerfile**: Multi-stage build for local testing and building
- **docker-compose.yml**: Orchestration for local development and testing
- **.gitea/workflows/build-and-test.yml**: Automated CI/CD pipeline using pre-built builder image
### Quick Start
**For CI/CD (Gitea Actions)**:
1. Build and push builder image (see [build-builder-image.md](build-builder-image.md))
2. Push to master branch - workflow runs automatically
3. Check Actions tab for results and APK artifacts
**For Local Testing**:
```bash
docker-compose run test # Run tests
docker-compose run android-build # Build APK
docker-compose run dev # Interactive shell
```
## Docker Usage
### Prerequisites
- Docker Engine 20.10+
- Docker Compose 2.0+ (if using docker-compose)
- At least 10GB free disk space (for Android SDK and build artifacts)
### Building the Docker Image
```bash
# Build the complete image
docker build -t jellytau:latest .
# Build specific target
docker build -t jellytau:test --target test .
docker build -t jellytau:android --target android-build .
```
### Using Docker Compose
#### Run Tests Only
```bash
docker-compose run test
```
This will:
1. Install all dependencies
2. Run frontend tests (Vitest)
3. Run Rust backend tests
4. Report results
#### Build Android APK
```bash
docker-compose run android-build
```
This will:
1. Run tests first (depends on test service)
2. If tests pass, build the Android APK
3. Output APK files to `src-tauri/gen/android/app/build/outputs/apk/`
#### Interactive Development
```bash
docker-compose run dev
```
This starts an interactive shell with all development tools available. From here you can:
```bash
bun install
bun run build
bun test
bun run tauri android build --apk true
```
#### Run All Services in Sequence
```bash
docker-compose up --abort-on-container-exit
```
### Extracting Build Artifacts
After a successful build, APK files are located in:
```
src-tauri/gen/android/app/build/outputs/apk/
```
Copy to your host machine:
```bash
docker cp jellytau-android-build:/app/src-tauri/gen/android/app/build/outputs/apk ./apk-output
```
## Gitea Act CI/CD Pipeline
The `.gitea/workflows/build-and-test.yml` workflow automates:
**Single Job**: Runs on every push to `master` and PRs
- Uses pre-built builder image (no setup time)
- Installs project dependencies
- Runs frontend tests (Vitest)
- Runs Rust backend tests
- Builds the frontend
- Builds the Android APK
- Uploads APK as artifact (30-day retention)
The workflow skips markdown files to avoid unnecessary builds.
### Workflow Triggers
The workflow runs on:
- Push to `master` or `main` branches
- Pull requests to `master` or `main` branches
- Can be extended with: `workflow_dispatch` for manual triggers
### Setting Up the Builder Image
Before using the CI/CD pipeline, you must build and push the builder image:
```bash
# Build the image
docker build -f Dockerfile.builder -t jellytau-builder:latest .
# Tag for your registry
docker tag jellytau-builder:latest gitea.tourolle.paris/dtourolle/jellytau-builder:latest
# Push to registry
docker push gitea.tourolle.paris/dtourolle/jellytau-builder:latest
```
See [build-builder-image.md](build-builder-image.md) for detailed instructions.
### Setting Up Gitea Act
1. **Ensure builder image is pushed** (see above)
2. **Push to Gitea repository**:
The workflow will automatically trigger on push to `master` or pull requests
3. **View workflow runs in Gitea UI**:
- Navigate to your repository
- Go to Actions tab
- Click on workflow runs to see logs
4. **Test locally** (optional):
```bash
# Install act if needed
curl https://gitea.com/actions/setup-act/releases/download/v0.25.0/act-0.25.0-linux-x86_64.tar.gz | tar xz
# Run locally (requires builder image to be available)
./act push --file .gitea/workflows/build-and-test.yml
```
### Customizing the Workflow
#### Modify Build Triggers
Edit `.gitea/workflows/build-and-test.yml` to change when builds run:
```yaml
on:
push:
branches:
- master
- develop # Add more branches
paths:
- 'src/**' # Only run if src/ changes
- 'src-tauri/**' # Only run if Rust code changes
```
#### Add Notifications
Add Slack, Discord, or email notifications on build completion:
```yaml
- name: Notify on success
if: success()
run: |
curl -X POST https://slack-webhook-url...
```
#### Customize APK Upload
Modify artifact retention or add to cloud storage:
```yaml
- name: Upload APK to S3
uses: actions/s3-sync@v1
with:
aws_access_key_id: ${{ secrets.AWS_ACCESS_KEY }}
aws_secret_access_key: ${{ secrets.AWS_SECRET_KEY }}
aws_bucket: my-apk-bucket
source_dir: src-tauri/gen/android/app/build/outputs/apk/
```
## Environment Setup in CI
### Secret Variables
To use secrets in the workflow, set them in Gitea:
1. Go to Repository Settings → Secrets
2. Add secrets like:
- `AWS_ACCESS_KEY` for S3 uploads
- `SLACK_WEBHOOK_URL` for notifications
- `GITHUB_TOKEN` for releases (pre-configured)
## Troubleshooting
### Out of Memory During Build
Android builds are memory-intensive. If you get OOM errors:
```bash
# Limit memory in docker-compose
services:
android-build:
deploy:
resources:
limits:
memory: 6G
```
Or increase Docker's memory allocation in Docker Desktop settings.
### Android SDK Download Timeout
If downloads timeout, increase timeout or download manually:
```bash
# In container, with longer timeout
timeout 600 sdkmanager --sdk_root=$ANDROID_HOME ...
```
### Rust Compilation Errors
Make sure Rust is updated:
```bash
rustup update
rustup target add aarch64-linux-android armv7-linux-androideabi x86_64-linux-android
```
### Cache Issues
Clear Docker cache and rebuild:
```bash
docker-compose down -v # Remove volumes
docker system prune # Clean up dangling images
docker-compose up --build
```
## Performance Tips
1. **Cache Reuse**: Both Docker and Gitea Act cache dependencies across runs
2. **Parallel Steps**: The workflow runs frontend and Rust tests in series; consider parallelizing for faster CI
3. **Incremental Builds**: Rust and Node caches persist between runs
4. **Docker Buildkit**: Enable for faster builds:
```bash
DOCKER_BUILDKIT=1 docker build .
```
## Security Considerations
- Dockerfile uses `ubuntu:24.04` base image from official Docker Hub
- NDK is downloaded from official Google servers (verified via HTTPS)
- No credentials are stored in the Dockerfile
- Use Gitea Secrets for sensitive values (API keys, tokens, etc.)
- Lock dependency versions in `Cargo.toml` and `package.json`
## Next Steps
1. Test locally with `docker-compose up`
2. Push to your Gitea repository
3. Monitor workflow runs in the Actions tab
4. Configure secrets in repository settings for production builds
5. Set up artifact retention policies (currently 30 days)
## References
- [Gitea Actions Documentation](https://docs.gitea.io/en-us/actions/)
- [Docker Multi-stage Builds](https://docs.docker.com/build/building/multi-stage/)
- [Android Build Tools](https://developer.android.com/studio/command-line)
- [Tauri Android Guide](https://tauri.app/v1/guides/building/android)
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# Defect windows — which bugs were present when
For each fixed defect, the releases it was actually present in. Companion to
[CHANGELOG.md](../CHANGELOG.md), which says what changed; this says how long each
fault had been shipping before it did.
**"Present since"** is the first *release* containing the defective code, not the
first release where a user could hit it — those differ, sometimes by months, and
the gap is called out where it matters. **"How dated"** records the evidence, so a
row can be re-checked or disputed:
| Method | Meaning |
|--------|---------|
| `pickaxe` | `git log -S<token>` on the defective token — the commit that introduced the exact string, then the earliest tag containing it. Strongest evidence. |
| `feature` | The defect is inseparable from a feature that landed whole (bad rung in a new algorithm, missing caller in new plumbing), dated to that feature's release. |
| `absence` | The fix *adds* something that was never there. Dated to when the surrounding code was built, since there is no introducing commit to find. Weakest — treat as "no later than". |
## Present since the first release
Fifteen defects date to the initial proof of concept (v0.0.1, 2026-06-23) and
shipped for between two weeks and two months before anyone hit them.
That is the dominant pattern here: not regressions, but original assumptions that
went unexercised until a later feature leaned on them.
| Defect | Present since | Fixed in | Shipped broken for | How dated |
|---|---|---|---|---|
| `AudioStreamIndex=0` pinned the video stream as the audio track (DR-140) | v0.0.1 | **v0.4.6** | ~7 weeks | pickaxe |
| Download URL spelled `videoBitrate`, which Jellyfin does not bind (DR-123) | v0.0.1 | **v0.5.1** | ~7 weeks | pickaxe |
| `pause_download` / `resume_download` were no-ops (DR-168) | v0.0.1 | **v0.5.3** | ~7.5 weeks | pickaxe |
| `.part` sidecar named by `with_extension`, so no cleanup path matched it (DR-169) | v0.0.1 | **v0.5.3** | ~7.5 weeks | pickaxe |
| `Range` sent on every retry regardless of the response (DR-170) | v0.0.1 | **v0.5.3** | ~7.5 weeks | pickaxe |
| `/Items/Latest` requested with the default `GroupItems=false` | v0.0.1 | **v0.5.1** | ~7 weeks | pickaxe |
| `SubtitleStreamIndex` omitted from PlaybackInfo, letting the server burn in (DR-176) | v0.0.1 | **v0.5.5** | ~8 weeks | pickaxe |
| No `PlaySessionId`, and one hardcoded `DeviceId`, on every stream URL (DR-177) | v0.0.1 | **v0.5.5** | ~8 weeks | pickaxe |
| `download_item` never recorded `media_type`; NULL read as `'audio'` (DR-135) | v0.0.1 | **v0.4.6** | ~7 weeks | pickaxe |
| `download_album` read its track list from the local cache (DR-173) | v0.0.1 | **v0.5.5** | ~8 weeks | pickaxe |
| Device profile carried no `MaxAudioChannels` (DR-141) | v0.0.1 | **v0.4.6** | ~7 weeks | absence |
| Streaming ceiling fixed at 20 Mbps with no way to lower it (UR-074) | v0.0.1 | **v0.5.3** (as a feature) | ~7.5 weeks | pickaxe |
| Hero banner auto-rotation never restarted after a manual swipe (DR-038) | v0.0.1 | **v0.9.1** | ~8.5 weeks | pickaxe |
| Audio-track change asked the player to select a track the transcode never carried (DR-258) | v0.0.1 | **v0.11.1** | ~2 months | pickaxe |
| Subtitle URL missing its `Stream.` route segment, so every fetch 404ed (DR-259) | v0.0.1 | **v0.11.1** | ~2 months | pickaxe |
### Why they took so long to surface
Four of these were **latent until a later feature exercised them**, which is why
the fix lands so far from the cause:
- The `videoBitrate` casing was harmless while every download was `original`. It
became visible only once a quality picker existed to select against — and then
produced no error, just a full-size file, because Jellyfin discards an unbound
query key silently.
- The unconditional `Range` header was inert for the same reason: `original` is
the one rung served with a `Content-Length` and real byte-range support. It
started corrupting files in **v0.5.1**, the moment the casing fix made
transcoded downloads actually transcode. So the *code* dates to v0.0.1 and the
*corruption* to v0.5.1 — a one-release window for the visible symptom.
- The missing `PlaySessionId` only bites when a stream is re-opened for the same
item. Nothing re-opened one until quality switching, transcoded seek and
audio-track switching existed.
- The omitted `SubtitleStreamIndex` only bites on sources whose own default
subtitle track is image-based, since that is what forces the server from
sidecar to burn-in.
Two were **masked by soft failure**: the asset protocol being disabled (DR-134)
was hidden by the thumbnail cache falling back to the server copy whenever the
server was reachable, and `AudioStreamIndex=0` was hidden by servers that
silently correct an out-of-range index — which is exactly why it was reported as
"*some* videos have no audio" rather than as a bug in the client.
## Introduced by a feature, fixed later
| Defect | Present since | Fixed in | How dated |
|---|---|---|---|
| Native-path resume position never applied (both layers assumed the other seeked) | v0.0.9/v0.0.10 | **v0.5.1** | feature (`PlayerAdapter` contract) |
| `get_downloaded_items` matched "this library exists" rather than constraining the item to it (DR-167) | v0.0.17 | **v0.5.3** | feature (browsable downloaded library) |
| `SCOPE_ITEM_TYPES` — the frontend/backend boundary leak (DR-063) | v0.0.17 | **v0.2.1** | pickaxe |
| `check:boundary` anchored to the query site, blind to a named const (DR-094) | v0.0.17 | **v0.2.1** | feature (tripwire landed with the leak it missed) |
| Coverage gate divided by hardcoded denominators, reporting 158% (DR-093) | v0.0.1 | **v0.2.1** | pickaxe |
| Tap deferral raced the WebView's synthesized click (DR-092 → DR-098) | v0.1.5 | **v0.2.7** | feature (the deferral itself) |
| Transport for webview media decided from `el.paused` in the DOM (DR-097) | v0.0.9/v0.0.10 | **v0.2.7** | feature (`Html5PlayerAdapter`) |
| `pick_current_episode` rung 3 returned the first *gap*, not the furthest watched | v0.3.0 | **v0.5.1** | feature |
| `mirror_user_data` mirrored `is_favorite` alone and returned early (DR-155) | v0.4.0 | **v0.5.1** | pickaxe |
| Stop-report path never fed the sync queue that existed for it (DR-154) | v0.4.6 | **v0.5.1** | feature (queue + drain landed with no producer) |
| Background-audio base applied in two display-only places (DR-159) | v0.2.9 | **v0.5.3** | pickaxe |
| Positions reported as 0 before the first tick, and always 0 for webview media (DR-178/179/180) | v0.5.3 | **v0.5.5** | feature (DR-159's tick boundary) |
| Length-less handoff transcode left to the player's own load-error retry, which can only restart it (DR-203) | v0.0.16 | **v0.8.2** | feature (the handoff's progressive-mp3 choice) |
Three of these are worth separating out, because the defect is not a mistake in
the code so much as **plumbing that was built and never connected**:
- `repository_get_next_up_episodes` accepted a `series_id` from the day it was
written, and no caller passed one until v0.3.0.
- The sync queue and its drain were built, tested and running in v0.4.6 with
neither of its two would-be producers ever called.
- Both halves of the watched-state backend existed with no caller before v0.5.3.
An automated check cannot see any of these — the code is present, tested and
reachable in principle. Only tracing a requirement to a *call site* catches it.
## Short windows (one release or less)
| Defect | Present since | Fixed in | Note |
|---|---|---|---|
| `experimentalNativeVideo` defaulted on, shipping audio with a blank screen (DR-161 → DR-172) | v0.5.3 | **v0.5.4** | One release. The decode path was fine; the compositing step never ran. |
| Webview-shaped audio profile insufficient — server ignores a profile's audio codec (DR-149) | v0.4.7 | **v0.4.8** | The v0.4.7 fix for DR-148 was necessary and not sufficient. |
| Android `versionCode` floor went stale (`minor*100` yielding less than the 5002 already in the field) | v0.5.0 | **v0.5.3** | Caught before a broken APK shipped; no released build was un-installable. |
| Subtitle sidecar work reverted by a commit assembled from a stale tree | v0.5.5 | **v0.5.5** | Never released broken — both commits are in v0.5.5. |
## Fixed twice / never actually broken
- **Autoplay time reset (v0.0.2).** Two commit objects carry this identical
change: `dcf08f30` (merged via Gitea PR #3, tagged v0.0.2) and `fa7cb6e9` (the
local original). Both have the same parent `674c8e5c` and the same diff. A merge
chain pulled `fa7cb6e9` and its follow-up `1e599627` into master's history
during v0.5.5, so `git log v0.5.4..v0.5.5` lists an autoplay fix that changed no
file in that release — `nextEpisodeService.ts` is byte-identical across the tag
boundary. The fix shipped in **v0.0.2** and has not regressed.
This is the one case where reading the changelog off `git log` subjects would
have produced a false entry, and it is a good argument for the project's
practice of deriving release notes from TRACES rather than commit subjects.
## Recurring shapes
Four causes account for most of the table:
1. **An omitted parameter is not a neutral default.** `SubtitleStreamIndex`,
`AudioStreamIndex`, `GroupItems` and `MaxAudioChannels` all had a server-side
default that was actively wrong, and in three of the four the server's choice
was more expensive than the one intended — burn-in forcing a full re-encode
being the extreme case.
2. **Silent binding failures.** `videoBitRate` produced no error, no warning and a
plausible-looking file. So did an unbound `Range`, and so did the coverage gate
dividing by a stale denominator.
3. **Two layers each assuming the other acts.** Native resume (adapter recorded
the position, backend never seeked), end-of-playback dispatch (two paths, one
unreachable), and the surface/attach split in v0.5.0's native video.
4. **A guard keyed on state that moves.** The tap deferral keyed suppression on a
timer handle the callback had already cleared; the HTML5 toggle keyed
play-vs-pause on `el.paused`, which flips while buffering.
## Reproducing this
The pickaxe rows can be re-derived directly:
```bash
git log --oneline --reverse -S'<defective token>' -- src-tauri/src # introducing commit
git tag --contains <sha> | sort -V | head -1 # first release with it
```
Blaming the lines a fix removed (`git blame` at the fix's parent) is faster to run
across many commits but was **not** used for the rows above: it reliably lands on
whichever commit last touched the adjacent lines, which is usually not the commit
that introduced the defect. It was used only to shortlist candidates.
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# Native player — verification plan
What to check before the `MediaPlayer` contract and Linux native video reach
`master`.
This is not a generic smoke test. Every case below exists because something
specific went wrong, and most of them were found on hardware **after** the
automated suites were green. Treat the sequences as load-bearing: several
defects only appeared in a particular order of actions, and testing the same
features in a different order missed them entirely.
Companion to [release-checklist.md](release-checklist.md), which covers the
release mechanics. This covers whether the player is fit to release at all.
## What is risky about this change
- `PlayerController` now talks to a `MediaPlayer` contract instead of
`PlayerBackend`. Every engine reaches it through an adapter that did not exist
before (DR-245).
- mpv decodes video on Linux for the first time, composited under the webview
(DR-231).
- Seek strategy is driven by an ability each engine declares rather than by a
truth table (DR-246).
- Two regressions were introduced during this work and caught only on a device:
a wrong capability for ExoPlayer (DR-246 follow-up) and a `Duration` panic
(DR-252). Both were invisible to the test suites.
The suites originally verified only engines that *behave*, which is why both
regressions passed them. That gap is now partly closed in code rather than in
this document: `UT-223` drives a deliberately hostile engine — `C.TIME_UNSET`,
NaN, infinities, negatives — through the adapter, and fails with the exact
panic that produced a black screen on a tablet. `UT-224` pins the handoff
clearing that was previously verified by listening to a device.
**Prefer moving cases out of this file and into tests.** Anything here that
could fail automatically should; a checklist depends on someone remembering to
follow it, and the two defects it was written for cost hardware time that would
have been better spent making the suites realistic. What is left below is what
genuinely needs eyes, ears, or a display — not what merely has not been
automated yet.
## 1. Automated gates
Cheap, fast, and non-negotiable. Run from the worktree.
```bash
bun run check # 0 errors, 0 warnings
bun run test # frontend
bun run test:rust # Rust
bun run format:check
bun run lint # 0 errors; warnings at or below the CI ratchet
bun run check:boundary
bun run traces:validate
bun run traces:coverage # at or above MIN_THRESHOLD
cd src-tauri && cargo fmt --check && cargo clippy --all-targets -- -D warnings
cargo clippy --all-targets --features conformance -- -D warnings
```
The eslint warning count is a **ratchet**: equal to the CI limit is a pass, one
over fails the build. Going one over is how a piece of dead state was found
during this work — do not raise the limit to get past it.
## 2. Engine conformance
```bash
bun run test:player # mpv + legacy, desktop
bun run test:player:android # ExoPlayer, on a connected device
```
Expected, and each deviation is meaningful rather than noise:
| Engine | Result | If it differs |
|---|---|---|
| `MpvPlayer` | 9/9 | A real regression. Stop. |
| `LegacyPlayer` | 8/9 | The one failure is `transport_settings_round_trip`: the old trait has no mute or rate. Any *other* failure is a regression. |
| ExoPlayer (device) | 7/7 | Two cases are absent because the Kotlin player exposes no mute or rate. |
A green conformance run is **not** sufficient evidence to ship. Both regressions
introduced during this work passed conformance.
## 3. Desktop (Linux)
Run with native video on, since that is what is new:
```bash
JELLYTAU_NATIVE_VIDEO=1 bun run tauri dev
```
- [ ] **Direct play** — a file the server does not transcode. Picture and sound.
- [ ] **Transcoded play** — something the server must re-encode (4K, HEVC, or an
audio codec the renderer cannot take).
- [ ] **Resume** — an item watched previously *on this install*. The prompt
appears and playback starts at the offered position, not at zero.
*(Resume is device-local — see "Known open".)*
- [ ] **Scrub** on a direct-play item; position lands and playback continues.
- [ ] **Scrub on a transcoded item.** Separate case on purpose: it takes a
different path, and it silently did nothing for months (DR-238).
- [ ] **Pause and resume** — the button follows the player. It stopped doing so
when a property was handled but never observed (DR-239).
- [ ] **Fullscreen** — the window really fills the display. Measure it if
unsure: the log prints `rendering WxH`, and a height short of the panel
means the document went fullscreen and the window did not (DR-240).
- [ ] **Exit the player** — audio stops. Listen; do not assume.
- [ ] **Audio-only playback** still works: mini player, queue, next/previous.
- [ ] Nothing in the log matches `PANIC` or `ERROR`.
## 4. Android
The tablet needs the *side-by-side* build. **Do not uninstall the release app**
to make an install succeed — see "Known open" for why the normal command is
currently wrong.
```bash
bun run android:build --device
./scripts/sync-android-sources.sh
cd src-tauri/gen/android && ANDROID_HOME="$HOME/Android/Sdk" ./gradlew \
:app:assembleUniversalDebug -x :app:rustBuildUniversalDebug \
-x :app:rustBuildArm64Debug -x :app:rustBuildArmDebug \
-x :app:rustBuildX86Debug -x :app:rustBuildX86_64Debug
adb install -r app/build/outputs/apk/universal/debug/app-universal-debug.apk
```
Confirm the package is `com.dtourolle.jellytau.debug` before installing:
```bash
aapt2 dump packagename <apk>
```
If it says `com.dtourolle.jellytau`, the suffix was lost — **stop**, re-sync and
re-assemble. Installing it would try to replace the real app.
Then, with `adb logcat` capturing:
- [ ] Play a video. Picture, sound, and controls.
- [ ] **Scrub.** The bar has a scale — a duration of `0.0` means the seek bar has
nothing to scrub against (DR-251).
- [ ] Transcoded seek lands rather than restarting the stream. ExoPlayer seeks a
transcode in place; declaring otherwise re-opened it (DR-246).
- [ ] PiP.
- [ ] Lockscreen: controls respond and position tracks.
- [ ] **The handoff sequence, in this exact order:**
1. play a video
2. enable background audio
3. background the app — audio continues
4. foreground the app — **video returns**
5. exit the player — **everything stops**
Steps 4 and 5 are where two separate defects lived (DR-250, DR-252). Doing
the same actions in another order finds neither.
- [ ] `grep -c 'PANIC at' <logcat>` returns 0.
## 5. Regression checks with a named cause
Each of these presented as something other than its cause, which is why they are
listed separately from the feature passes above.
| Symptom to look for | Was actually | Ref |
|---|---|---|
| Skip on a transcoded item does nothing, or jumps to zero | Seek strategy keyed on the container, not the engine | DR-238, DR-246 |
| Play/pause button does not follow the player | A property handled but never observed, so the event never arrived | DR-239 |
| Fullscreen leaves a strip of desktop | The document went fullscreen, the window did not | DR-240 |
| Resume plays from the beginning | A seek issued before the engine had a file was discarded | DR-241 |
| Scrub bar has no scale | Duration reported as `0.0` and believed | DR-251 |
| Black screen, no controls, after a background-audio round trip | A junk duration converted to a `Duration` panicked the backend | DR-252 |
| Audio still playing after leaving the player | The stop was aimed at whichever renderer bookkeeping believed was active | DR-250 |
## Known open — decide, do not discover
None of these are fixed. Each needs an explicit ship / do-not-ship call rather
than being met with surprise during testing.
- **Resume is device-local.** Progress is read from the local database and
nothing consults the server's `UserData`. A fresh install, a second device or
a reinstall offers no resume even though the server knows the position. Not a
regression — it has always been so.
- **The background-audio handoff is an unconfirmed state swap.**
`exit_background_audio` marks the video element the player again the moment it
is called, while the element has not reloaded. DR-250 makes the visible
symptom impossible; the race is intact and can still misdirect a lockscreen
command or a position read. See
[media-player-controller.md](specs/media-player-controller.md).
- 🔴 **The side-by-side debug install is broken.** `bun run android:dev`
produces an APK with the *release* application id, because the Tauri build
regenerates `gen/build.gradle.kts` after the sync drops the `.debug` suffix in.
It then fails on signatures, and its own error message advises uninstalling —
which would destroy the real app's data. **Fix this before anyone else builds
for Android.**
- **`PlayerBackend` still exists** behind `LegacyPlayer`, and the frontend still
carries some playback state. DR-248 and DR-249 are not started.
## Ship criteria
Ship when:
1. Every automated gate in §1 passes.
2. Conformance matches §2 exactly, deviations included.
3. §3 and §4 are complete, on real hardware, by a person.
4. §5 shows no symptom returning.
5. Every item in "Known open" has a recorded decision.
Do not ship on green suites alone. Both regressions introduced during this work
passed every suite and were caught by a person using the app.
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# Release Checklist
Quick reference for creating a JellyTau release.
## Pre-Release (1-2 days before)
- [ ] Code is on `master`/`main` branch
- [ ] All feature branches are merged and tested
- [ ] No failing tests locally: `bun run test` and `bun run test:rust`
- [ ] Requirement traceability check passes: `bun run traces:json`
- [ ] Type checking passes: `bun run check`
## Update Version (Day before)
- [ ] Decide on version number (semantic versioning)
- Example: `v1.2.0` (major.minor.patch)
- Example: `v1.0.0-rc1` (release candidate)
- Example: `v1.0.0-beta` (beta)
- [ ] Update version in files:
```bash
# Check these files for version numbers
cat package.json | grep version
cat src-tauri/tauri.conf.json | grep version
cat src-tauri/Cargo.toml | grep version
```
- [ ] Update `CHANGELOG.md`:
- [ ] Add section for new version
- [ ] List all features added
- [ ] List all bugs fixed
- [ ] List breaking changes (if any)
- [ ] Add upgrade instructions (if needed)
- [ ] Format: Markdown with clear sections
- [ ] Update `README.md`:
- [ ] Update any version references
- [ ] Update feature list if applicable
- [ ] Update requirements if changed
- [ ] Commit changes:
```bash
git add .
git commit -m "Bump version to v1.2.0"
git push origin master
```
## Final Check Before Release
- [ ] Run full test suite:
```bash
bun run test # Frontend tests
bun run test:rust # Rust tests
bun run check # Type checking
```
- [ ] Build locally (optional but recommended):
```bash
# Test Linux build
bun run tauri build
# Test Android build
bun run tauri android build
```
- [ ] No uncommitted changes:
```bash
git status # Should show clean working directory
```
## Release (Tag & Push)
```bash
# 1. Create annotated tag with release notes
git tag -a v1.2.0 -m "Release version 1.2.0
Features:
- New feature 1
- New feature 2
Fixes:
- Fixed bug 1
- Fixed bug 2
Improvements:
- Performance improvement 1
- UI improvement 1
Breaking Changes:
- None (or list if applicable)
Migration:
- No action required (or include steps if applicable)"
# 2. Push tag to trigger workflow
git push origin v1.2.0
# 3. Monitor in Gitea Actions
# Go to Actions tab and watch the workflow run
```
## During Release (While Workflow Runs)
- [ ] Watch workflow progress in Gitea Actions
- [ ] Monitor for test failures
- [ ] Monitor for build failures
- [ ] Check build logs if any step fails
## After Release (Workflow Complete)
- [ ] Download artifacts from release page:
- [ ] `JellyTau_*.AppImage` (Linux)
- [ ] `JellyTau_*.deb` (Linux)
- [ ] `JellyTau-*.rpm` (Linux)
- [ ] `jellytau-release.apk` (Android)
- [ ] `jellytau-release.aab` (Android)
- [ ] Basic testing of artifacts:
- [ ] Linux AppImage runs
- [ ] Linux DEB installs and runs
- [ ] Android APK installs (via `adb` or sideload)
- [ ] Verify release page:
- [ ] Title is correct: "JellyTau vX.Y.Z"
- [ ] Release notes are formatted correctly
- [ ] All artifacts are uploaded
- [ ] Release type is correct (prerelease vs release)
- [ ] Verify integrity metadata (DR-216):
- [ ] `SHA256SUMS` is present, and `sha256sum -c SHA256SUMS` passes in the
directory you downloaded into
- [ ] SBOM files are present (`*.cdx.json`, `frontend-dependencies.txt`)
- [ ] Verify the update path (DR-217) — this is the step that catches a broken
updater *before* users hit it, because a bad manifest fails only on their
machine:
- [ ] `latest.json` is live and names this version:
`curl -s https://gitea.tourolle.paris/dtourolle/jellytau/raw/branch/updater/latest.json | jq .version`
- [ ] Both platform entries carry a non-empty `signature`
- [ ] The `.AppImage.tar.gz`, its `.sig`, and the NSIS `.sig` are among the
release assets — the manifest points at them
- [ ] Install the **previous** release, launch it, and use Settings → Updates:
it should offer this version, install it, and relaunch
- [ ] On Android, Settings → Updates offers the releases page rather than an
install button (the updater plugin is not compiled for that target)
- [ ] Announce release:
- [ ] Post to relevant channels/communities
- [ ] Update website/docs
- [ ] Tag contributors if applicable
## Rollback (If Issues Found)
If critical issues are found after release:
```bash
# Option 1: Delete tag locally and remotely
git tag -d v1.2.0
git push origin :refs/tags/v1.2.0
# Option 2: Mark as prerelease in release page
# Then plan immediate patch release (v1.2.1)
# Option 3: Create hotfix branch and release v1.2.1
git checkout -b hotfix/v1.2.1
# Fix issues
git commit -m "Fix critical issue"
git tag v1.2.1
git push origin hotfix/v1.2.1 v1.2.1
```
## Version Examples
### Major Release
```
v2.0.0 - Major version bump
- Significant new features
- Breaking API changes
- Major UI redesign
```
### Minor Release
```
v1.2.0 - Feature release
- New features
- Backward compatible
- Bug fixes
```
### Patch Release
```
v1.1.1 - Bug fix/patch
- Bug fixes only
- No new features
- Backward compatible
```
### Pre-releases
```
v1.2.0-alpha - Early development
v1.2.0-beta - Late development, feature complete
v1.2.0-rc1 - Release candidate, minimal fixes only
```
## File Locations
Key files for versioning:
- `package.json` - Frontend version
- `src-tauri/tauri.conf.json` - Tauri config version
- `src-tauri/Cargo.toml` - Rust version
- `CHANGELOG.md` - Release history
- `README.md` - Project documentation
## Troubleshooting
### Tests Fail Before Release
1. Don't push tag yet
2. Fix failing tests locally
3. Push fixes to master
4. Re-run test suite
5. Then tag and push
### Build Fails in CI
1. Check detailed logs in Gitea Actions
2. Fix issue locally
3. Delete tag: `git tag -d v1.2.0 && git push origin :refs/tags/v1.2.0`
4. Push fix to master
5. Create new tag with fix
### Release Already Exists
1. If workflow runs twice, artifacts may conflict
2. Check release page
3. If duplicates exist, delete and re-release
### Artifacts Missing
1. Check build logs for errors
2. Verify platform-specific dependencies
3. Delete tag and retry after fixes
## Performance Tips
- Tests: ~5-10 minutes
- Linux build: ~10-15 minutes
- Android build: ~15-20 minutes
- Total release time: ~30-45 minutes
First build takes longer (cache warming). Subsequent releases are faster due to caching.
## Template: Release Notes
```
## 🎉 JellyTau vX.Y.Z
### ✨ Features
- New feature 1
- New feature 2
### 🐛 Bug Fixes
- Fixed issue #123
- Fixed issue #456
### 🚀 Performance
- Improvement 1
- Improvement 2
### 📱 Downloads
- [Linux AppImage](#) - Run on any Linux
- [Linux DEB](#) - Install on Ubuntu/Debian
- [Android APK](#) - Install on Android devices
- [Android AAB](#) - For Google Play Store
### 📋 Requirements
**Linux:** 64-bit, GLIBC 2.29+
**Android:** 8.0+
### 🔗 Links
- [Changelog](https://gitea.tourolle.paris/dtourolle/jellytau/src/branch/master/CHANGELOG.md)
- [Issues](https://gitea.tourolle.paris/dtourolle/jellytau/issues)
---
Built with Tauri, SvelteKit, and Rust 🦀
```
## Quick Commands
```bash
# View existing tags
git tag -l
# Create release locally (dry run)
git tag -a v1.2.0 -m "Release v1.2.0" --dry-run
# List commits since last tag
git log v1.1.0..HEAD --oneline
# Show tag details
git show v1.2.0
# Rename tag (if needed)
git tag v1.2.0_old v1.2.0
git tag -d v1.2.0
git push origin v1.2.0_old v1.2.0
# Delete tag locally and remotely
git tag -d v1.2.0
git push origin :refs/tags/v1.2.0
```
---
**Tips:**
- ✅ Always test locally before release
- ✅ Use semantic versioning consistently
- ✅ Document changes in CHANGELOG
- ✅ Wait for full workflow completion
- ✅ Test release artifacts before announcing
**Remember:** A good release is a tested release! 🚀
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# Specs index
Feature specs for JellyTau. Start a new one from
[SPEC-TEMPLATE.md](SPEC-TEMPLATE.md) and run it past
[SPEC-REVIEW-CHECKLIST.md](SPEC-REVIEW-CHECKLIST.md) before accepting it.
## What lives here
**Only work that has not shipped.** Once a spec is fully implemented its design
is folded into the architecture docs — which are the maintained description of
the build — and the spec file is deleted. Git history keeps the original,
including its rejected alternatives and acceptance criteria; the architecture
docs keep the reasoning that a future change still needs.
So: a file in this directory is a **promise, not a description**. If you want to
know how something *works*, read
[docs/architecture/](../architecture/README.md). If you want to know what is
*planned*, read here.
**Status vocabulary**
| Status | Meaning |
|---|---|
| Proposed | Written, not accepted. Nothing built. |
| Accepted | Agreed as the design; implementation not started or not finished. |
| Partially implemented | Some parts shipped; the spec names what is left. |
| Design authority | No code of its own — it records a decision later specs act on. |
**Next free requirement ids** (always re-check
[requirements.md](../requirements.md) before allocating): **UR-079**,
**IR-033**, **DR-232**. Three specs below suggested ids that have since been
taken by other work; each carries a ⚠️ note at the top.
## Partially implemented
| Spec | What landed | What is left |
|---|---|---|
| [frontend-domain-model.md](frontend-domain-model.md) | Catalog surface: `MediaKind`, `from_jellyfin` isolated, ticks → ms | `primaryImageTag``imageId` (~30 sites); player/session/reporting tick math; `stream.type` |
| [libmpv2-migration.md](libmpv2-migration.md) | `LICENSE` | The `libmpv``libmpv2` crate swap |
| [read-through-media-cache.md](read-through-media-cache.md) | DR-126…128, DR-133…138 — cache entries *are* download rows; local playback of downloads | DR-122/124/125 — the read-through capture. DR-121 shipped as backend-owned stream selection and left this spec |
| [scoped-search-boundary-implementation.md](scoped-search-boundary-implementation.md) | Stage 1: `SearchScope` owned by Rust (DR-063…067) | Stage 2: result-side grouping (`GROUP_ITEM_TYPES` still in `searchScope.ts`) |
## Not started
| Spec | Blocked on / note |
|---|---|
| [desktop-native-video.md](desktop-native-video.md) | mpv draws video on every desktop platform, then the webview `<video>` path and hls.js are deleted. Converts a measured 7% direct-play rate toward Android's 85%. Stacked on backend-owned stream selection. |
| [backend-owned-stream-selection.md](backend-owned-stream-selection.md) | Rust owns direct-play-vs-transcode, transport and quality; players consume one `StreamSelection`. Partly built — `StreamSelection`, `Transport` and the `.m3u8` sniff removal have landed. |
| [build-provenance.md](build-provenance.md) | `build.rs` is still bare. ⚠️ suggested id DR-093 is taken. |
| [player-facade-enforcement.md](player-facade-enforcement.md) | ~60 `commands.player*` sites still outside the facade; no lint rule. ⚠️ suggested id DR-095 is taken. |
| [windows-native-audio-backend.md](windows-native-audio-backend.md) | Blocked on the libmpv2 swap. ⚠️ suggested id IR-030 is taken. |
| [linux-native-video-spike.md](linux-native-video-spike.md) | **Spike run 2026-08-21: compositing works on Linux, X11 and Wayland.** G1-G6 green bar the Tauri `default_vbox()` half of G1. The adaptive-bitrate question it was waiting on is **answered**: the server publishes one `EXT-X-STREAM-INF`, so there is no ladder for mpv to lose (DR-229). `StreamSelection` (DR-225) is the contract to consume. |
## Design authority
| Spec | Role |
|---|---|
| [playback-backend-unification.md](playback-backend-unification.md) | Why video cannot unify onto one native engine and audio can. The audio half has since shipped on Android; Windows has not. |
| [scoped-search-boundary.md](scoped-search-boundary.md) | The boundary design the `check:boundary` rule came from. Stage 1 built. |
| [scoped-search.md](scoped-search.md) | Superseded in part — its "frontend only, no Rust changes" decision is the leak the boundary spec reversed. UX still current. |
## Where the shipped specs went
Sixteen specs were folded into the architecture docs and deleted (2026-08-21).
Where to look for each:
| Shipped work | Now documented in |
|---|---|
| Account menu & global chrome | [02-svelte-frontend.md](../architecture/02-svelte-frontend.md) — App Shell and Chrome |
| Library mosaic | [02-svelte-frontend.md](../architecture/02-svelte-frontend.md) — Library Mosaic |
| Series current-episode navigation | [02-svelte-frontend.md](../architecture/02-svelte-frontend.md) — Series and Episode Navigation |
| Downloads as an offline library | [02-svelte-frontend.md](../architecture/02-svelte-frontend.md) — Downloaded Browse |
| Favourites browsing | [01-rust-backend.md](../architecture/01-rust-backend.md) — Favorites System |
| Streaming bitrate cap | [01-rust-backend.md](../architecture/01-rust-backend.md) — Streaming quality ladder |
| Locally-indexed search | [03-data-flow.md](../architecture/03-data-flow.md) — Search Flow; [01-rust-backend.md](../architecture/01-rust-backend.md) — Background workers |
| Offline downloaded-only filter | [06-downloads-and-offline.md](../architecture/06-downloads-and-offline.md) — Offline Catalog Visibility |
| Audio equalizer · Android audio settings parity | [05-platform-backends.md](../architecture/05-platform-backends.md) — Audio settings on ExoPlayer |
| Android native video spike | [05-platform-backends.md](../architecture/05-platform-backends.md) — Native Video Compositing |
| Video background audio | [05-platform-backends.md](../architecture/05-platform-backends.md) — Background Audio Handoff |
| Traceability gate repair | [traceability-ci.md](../traceability-ci.md) |
| Boundary tripwire hardening | `scripts/check-frontend-boundary.sh` (its header is the spec) |
| Playback docs corrections · req-coverage script removal | Nothing to document — both were corrections that have been applied |
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# Spec review checklist
Run a spec past this before accepting it. It exists because JellyTau's
backend/frontend boundary is a **stated rule with, historically, no gate** — the
rule lived in the architecture docs, but nothing forced a spec author to check a
new design against it, and a "minimal-change" spec quietly leaked domain
taxonomy into the frontend (see [scoped-search-boundary.md](scoped-search-boundary.md)).
This checklist is the human gate. The CI check
(`scripts/check-frontend-boundary.sh`) is only a crude tripwire for one leak
signature — it does **not** replace this.
Copy the boxes into the review comment (or the PR) and tick them.
## Boundary (the one that bites)
- [ ] **The spec has a filled-in "Layer assignment" table**, and it assigns
*logic*, not files. A spec without this section is not ready to review.
- [ ] **No domain vocabulary is placed in the frontend.** In particular: Jellyfin
item-type sets that define a *category* (what "Music"/"TV"/"Movies" means),
query-shaping rules, business rules, reachability/sync policy. If the
frontend names a *set* of item types to define a category, that is a leak —
it belongs behind an opaque enum the backend expands.
- [ ] **"The backend already accepts this parameter" was not used as the reason**
to place the deciding logic in the frontend. Accepting a parameter ≠ owning
the decision of its value.
- [ ] **The `Scope:` / effort framing is not optimizing for "least backend
change."** "Frontend only, no Rust changes" is a description, never a goal.
The goal is *correct layer placement*; sometimes that is more Rust work.
- [ ] Ran the litmus test on each borderline responsibility: *would it change if
Jellyfin's API changed?* → Rust. *Only if the UI were redesigned?*
frontend. Borderline defaults to Rust.
- [ ] Single-type presentation (`itemType: "Movie"`, "this page shows albums")
is **not** over-corrected into the backend. The rule targets category
*taxonomy*, not every mention of a type. Don't invent a backend enum per
list page.
## IPC contract
- [ ] Anything crossing the boundary has its wire shape specified.
- [ ] camelCase rule accounted for: top-level params auto-convert; nested structs
get `#[serde(rename_all = "camelCase")]`; tagged unions match tags on both
sides; events are kebab-case. (CLAUDE.md §IPC,
[04-type-sync-and-threading.md](../architecture/04-type-sync-and-threading.md).)
- [ ] Any result that arrives *twice* (command return **and** a later event —
e.g. the search cache/server merge) has **both** payloads in the new shape.
- [ ] `bindings.ts` is regenerated from Rust, not hand-edited.
## Requirements & traceability
- [ ] Linked to existing URs, or new URs/DRs are allocated in
[requirements.md](../requirements.md).
- [ ] Requirement-implementing code will carry `// TRACES:` comments (CLAUDE.md).
- [ ] Traceability coverage stays ≥ 88% (the CI gate — a ratchet, so check
`bun run traces:coverage` rather than trusting this number).
## Lifecycle
- [ ] **"Destination on completion" names a real architecture doc and section.**
This spec file is deleted when it ships; something has to absorb the
design. If nothing fits, the layer assignment is probably unclear — go back
to that table.
- [ ] The spec separates the **durable half** (invariants, rejected alternatives,
the defect a decision exists to prevent) from the **disposable half**
(phases, migration steps, acceptance criteria). Only the first is folded in.
- [ ] Anything listed as out of scope but still worth doing is written where it
will be found after this file is gone — beside the code it concerns.
## Conflicts & hygiene
- [ ] If this spec revises/supersedes another, the older spec gets a banner
pointing here — no two specs silently contradicting.
- [ ] Acceptance criteria include the standard gates: `bun run check`,
`bun run test`, `bun run check:boundary`, and (if Rust changed)
`cargo fmt`/`cargo clippy`/`bun run test:rust`.
- [ ] Notes flag that a parallel Claude session may be active in the repo.
---
**If any Boundary box can't be ticked, the spec is not ready** — fix the layer
assignment first. Every other section can be negotiated; that one is the whole
reason this file exists.
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# Spec: <feature name>
<!--
Copy this file to docs/specs/<kebab-name>.md and fill it in. Delete the HTML
comments as you go. The section that matters most for this project is
"Layer assignment" — read its comment before writing it.
Before merging a spec, run it past docs/specs/SPEC-REVIEW-CHECKLIST.md.
LIFECYCLE: this file is temporary. docs/specs/ holds only unshipped work — when
the last acceptance criterion is met, the design is folded into
docs/architecture/ and this file is deleted in the same commit. Write it
knowing that: the durable half is the reasoning (invariants, rejected
alternatives, the defect a decision prevents), and the disposable half is the
plan (phases, migration steps, acceptance criteria).
-->
**Status:** Proposed <!-- Proposed | Accepted | Partially implemented | Superseded.
NOT "Implemented" — a fully shipped spec is folded into docs/architecture/
and deleted. See "Destination on completion" below. -->
**Requirements:** <!-- UR-xxx → DR-yyy; allocate new DRs in requirements.md. -->
**UX spec:** <!-- link to the relevant ux-flows.md section, or "n/a". -->
**Supersedes / revises:** <!-- link any spec this changes, or delete this line. -->
**Destination on completion:** <!--
Which architecture doc absorbs this design when it ships, and roughly which
section. e.g. "05-platform-backends.md — a new section beside
ExoPlayerBackend". Name it NOW: a feature that fits no existing doc usually
has an unclear layer assignment, which is worth finding out at spec time.
This spec file is deleted in the same commit that folds it in. -->
## Summary
<!-- 24 sentences. What changes for the user, in plain terms. -->
## Motivation
<!-- Why now. The problem being solved. -->
## Layer assignment
<!--
🔴 THIS IS THE SECTION THAT KEEPS THE ARCHITECTURE HONEST. Do not skip it, and
do NOT reframe it as "how little backend work can we get away with."
The project rule (CLAUDE.md, architecture/02-svelte-frontend.md): the Rust
backend owns ALL business logic — auth, catalog, sessions, downloads, offline,
playback, AND domain vocabulary (e.g. what Jellyfin item types the category
"Music" means). The Svelte frontend is PRESENTATION ONLY: rendering, layout,
navigation, view/order preferences, input handling.
For each distinct piece of *logic* this feature introduces, put it in the table
and name the layer it belongs to and WHY. "It's less work in the frontend" and
"the backend already accepts this parameter" are NOT reasons to place logic in
the frontend — the backend accepting a parameter does not make deciding that
parameter's value a presentation concern.
Litmus test for "does this belong in Rust?": Would this logic have to change if
Jellyfin changed its API, added an item type, or altered a business rule? If
yes, it is domain logic → Rust. Would it change if we redesigned the UI? If
yes (and only yes), it is presentation → frontend.
A past incident: scoped-search.md placed the item-type taxonomy (what "Music"
means as a set of Jellyfin types) in the frontend because the backend already
accepted an includeItemTypes filter. That was a boundary leak; see
scoped-search-boundary.md. This section exists to catch that class of mistake
at spec time, not in review three features later.
-->
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| <!-- e.g. scope → item-types --> | Rust | <!-- domain vocabulary; changes with Jellyfin's API --> |
| <!-- e.g. group display order --> | Frontend | <!-- pure presentation; changes only if UI is redesigned --> |
<!--
If a row is genuinely borderline, say so and give the tie-breaker you used.
Borderline defaults to Rust for anything touching domain data or vocabulary.
-->
## Design
<!--
How it works. Wire shapes for anything crossing the IPC boundary. Remember:
- Command NAME must match the Rust fn name exactly.
- Top-level params auto-convert snake_case → camelCase (Tauri v2).
- Nested struct fields need #[serde(rename_all = "camelCase")].
- Events are kebab-case.
(See CLAUDE.md §IPC and architecture/04-type-sync-and-threading.md.)
Regenerate bindings.ts from Rust types; never hand-edit it.
-->
## Out of scope
<!-- What this spec deliberately does NOT do. -->
## Acceptance criteria
<!-- Checkable statements. Include the standard gates: -->
- [ ] `bun run check` and `bun run test` pass.
- [ ] `cargo fmt` clean, `cargo clippy` clean, `bun run test:rust` passes (if Rust changed).
- [ ] `bun run check:boundary` passes (no taxonomy leak into the frontend).
- [ ] New requirement-implementing code carries `// TRACES:` comments.
- [ ] `bindings.ts` regenerated if Rust types changed.
## Testing
<!-- Rust: cargo test. Frontend: vitest, src/lib/**/*.test.ts. What to cover. -->
## TRACES
<!-- Suggested tags per new/changed piece: UR-xxx | DR-yyy | tests. -->
## Notes for the implementer
<!--
- A parallel Claude session may be active in this repo — `git diff` before
"repairing" unexpected changes (see project memory / CLAUDE.md gotchas).
- Anything else non-obvious.
-->
@@ -1,242 +0,0 @@
# Spec: Backend-owned stream selection
**Status:** Proposed
**Requirements:** UR-079 (new) → DR-219 … DR-224 (new); **implements and extends
DR-121**, currently allocated to
[read-through-media-cache.md](read-through-media-cache.md) and not started.
Re-check `requirements.md` before allocating — the ids moved twice while this was
being written (`DR` max was 215, then 218).
**UX spec:** the quality selector in `VideoPlayer.svelte` already exists; this
changes what fills it, not how it looks.
**Supersedes / revises:** takes DR-121 out of
[read-through-media-cache.md](read-through-media-cache.md), which should keep
only its capture/eviction half. Unblocks
[linux-native-video-spike.md](linux-native-video-spike.md).
**Destination on completion:**
[01-rust-backend.md](../architecture/01-rust-backend.md) — extends the
"Streaming quality ladder" section; and
[03-data-flow.md](../architecture/03-data-flow.md) — playback initiation. The
durable half is the layer line and the `StreamSelection` contract; phases and
acceptance criteria are disposable.
## Summary
Make Rust the single owner of *which stream to play* — direct play or transcode,
at what ceiling, over what transport — and hand every player backend a
self-describing selection instead of a bare URL. mpv, ExoPlayer and the HTML5
`<video>`/hls.js path all become consumers of the same decision rather than three
places that re-derive it.
Nothing about how playback *looks* changes. What changes is that the frontend
stops inferring transport from a URL string, and that direct play becomes
possible at all.
## Motivation
Four concrete problems, all the same shape.
**1. The frontend sniffs transport out of the URL.**
[VideoPlayer.svelte:569](../../src/lib/components/player/VideoPlayer.svelte#L569):
```ts
const isHlsStream = currentStreamUrl.includes(".m3u8");
```
and again inline at line 2364. Rust *built* that URL and knows exactly what it
is; the frontend re-derives it by substring match. Change the endpoint, add a DASH
path, serve a progressive file, and this silently picks wrong. This is the
boundary rule in miniature — not item-type taxonomy, but the same error: a
domain fact reconstructed in the presentation layer because the wire shape did
not carry it.
**2. There is no direct-play path.** `get_video_stream_url` always builds an HLS
transcode URL (`TranscodingProtocol=hls`, `VideoCodec=h264` first). Every video
play burns server CPU, even when the file would play untouched. This is the cost
the Linux native-video work exists to remove, and it cannot be removed without a
decision that does not currently exist anywhere in the codebase.
**3. Quality is a process-wide global.** `streaming_quality()` /
`set_streaming_quality()` in `repository/online.rs` read and write a static.
It is not per-session or per-item, so it cannot express "this 4K remux needs a
ceiling, that podcast does not", and two concurrent playbacks would share one
setting.
**4. Rust cannot say what qualities *this* media source supports.** The selector
is populated from a fixed enum rather than from what the source actually offers.
DR-121 already names this; it has not been built.
### The prior question
Finding 3 of [playback-backend-unification.md](playback-backend-unification.md)
holds that hls.js gives us real adaptive bitrate and mpv would lose it. Evidence
in this repo suggests **there is no ABR today**: a single rendition is requested,
no level-handling code exists anywhere in the frontend, and a quality switch is
implemented by re-opening the stream.
**Run this before sizing the adaptation work.** It needs a live server:
```
curl -s "https://<server>/Videos/<itemId>/master.m3u8?api_key=<key>&…" \
| grep -c EXT-X-STREAM-INF
```
`1` → there is no adaptation to preserve, and the adaptation half of this spec
collapses to "pick well at open". `>1` → finding 3 stands and DR-223 applies.
**Everything else in this spec is worth doing either way** — the ownership
problems above are independent of the answer.
## Layer assignment
| Logic / responsibility | Layer | Why it belongs there |
|---|---|---|
| Direct play vs direct stream vs transcode | Rust | Depends on Jellyfin's `PlaybackInfo`, container/codec support and the device profile. Changes when Jellyfin's API or our profile changes → domain, by the litmus test. |
| Transport of the chosen stream (HLS / progressive / local file) | Rust | Rust constructs the URL; it is the only place that *knows* rather than infers. Today the frontend guesses from `.m3u8`. |
| Which qualities this media source can offer | Rust | Derived from the source's own streams and the quality→transcode-parameter mapping that `get_video_download_url` already holds. DR-121. |
| The quality ceiling in force, per playback session | Rust | Domain state that outlives any one view and must survive a backend swap or a mode transfer. Currently a process-wide static. |
| Deciding to re-negotiate mid-playback (if adaptation is needed) | Rust | It performs the HTTP and already derives reachability from real traffic via `ConnectivityMonitor`. Throughput estimation is the same pattern on the same data — a side-channel probe would repeat the mistake that principle exists to prevent. |
| Frame-level delivery *within* the selected stream, including a player's own ABR | **Player** | ExoPlayer has genuine adaptive selection; if Rust hands it a multi-variant playlist it should use it. Rust chooses *what to request*, never how a player paces bytes. See "The line". |
| Rendering the selector, showing the current quality, ordering the list | Frontend | Pure presentation over a backend-supplied list. |
| Poster, letterbox, controls, overlay z-order | Frontend | Unchanged. |
### The line
**Rust decides *what stream*. The player decides *how to deliver it*.**
This matters most for ExoPlayer, which already does real adaptive track selection
over HLS. This spec must not reimplement that or fight it — if a multi-variant
playlist reaches ExoPlayer, ExoPlayer adapts and Rust stays out of the way. The
same restraint applies to any future backend that gains the capability. Rust only
steps in where the player has no such ability (mpv) *and* the server actually
offers a ladder.
Borderline row, with its tie-breaker: "which media source of a multi-source item"
looks like a user choice, and its *presentation* is. The default and the
constraint set are domain → **Rust**, per the borderline-defaults-to-Rust rule.
## Design
### The contract
One self-describing selection replaces the bare URL. Nested fields are
camelCase over the wire (`#[serde(rename_all = "camelCase")]`); the enums are
tagged so the frontend matches a tag instead of parsing a string.
```rust
#[derive(Serialize, Type)]
#[serde(rename_all = "camelCase")]
pub struct StreamSelection {
pub url: String,
pub transport: Transport,
pub playback_kind: PlaybackKind,
/// The negotiated rendition; None when direct-playing the source as-is.
pub rendition: Option<Rendition>,
/// What this media source can offer — fills the selector (DR-121).
pub available: Vec<QualityOption>,
}
#[derive(Serialize, Type)]
#[serde(tag = "type", rename_all = "camelCase")]
pub enum Transport { Hls, Progressive, LocalFile }
#[derive(Serialize, Type)]
#[serde(tag = "type", rename_all = "camelCase")]
pub enum PlaybackKind { DirectPlay, DirectStream, Transcode }
```
`Transport` is the field that deletes the `.m3u8` sniff. The frontend picks
hls.js on `Hls` and the element's own loader otherwise — a tag match, not a
substring search.
### Re-negotiation
Rust emits `stream-selection-changed` (kebab-case, per convention) carrying a new
`StreamSelection` plus the position to resume at. The existing
`playerSetStreamQuality` response already has exactly the right shape — a tagged
`strategy` that tells the caller who reloads, with the backend handling native
itself and handing HTML5 a URL for `reloadSource`
([index.ts:198](../../src/lib/player/index.ts#L198)). **Extend that; do not
invent a second mechanism.** It is the one piece of this that is already right.
Note the existing wart to preserve or fix deliberately, not accidentally:
tauri-specta keeps those response fields snake_case (`new_url`), and the facade
comments say so.
### Phases
1. **DR-219** `StreamSelection` + `Transport`; delete the `.m3u8` sniff. No
behaviour change — pure ownership move, and independently shippable.
2. **DR-220** Per-session quality ceiling replacing the `online.rs` static.
3. **DR-221** `available` populated from the media source (DR-121's substance).
4. **DR-222** Direct-play/direct-stream negotiation via `PlaybackInfo`. This is
the phase that unlocks native video and removes the transcode.
5. **DR-223** Adaptation, **only if the playlist check says a ladder exists**.
Cheapest sufficient design: re-negotiate on sustained throughput drop, reusing
the phase-1 re-negotiation path. A local proxy synthesizing a single-variant
playlist is a last resort, not a starting point.
6. **DR-224** ExoPlayer and mpv consume `StreamSelection` unchanged, proving the
contract is player-agnostic rather than HTML5-shaped.
Phases 14 stand on their own merits with no dependency on the ladder question.
## Out of scope
- Rendering, compositing, and the Linux native-video work itself. This spec
unblocks [linux-native-video-spike.md](linux-native-video-spike.md); it does
not contain it.
- Replacing hls.js. It stays as the HLS loader for the webview path.
- Reimplementing or overriding ExoPlayer's own adaptive selection. See "The line".
- The download/capture half of [read-through-media-cache.md](read-through-media-cache.md)
(DR-122, DR-124, DR-125), which keeps its own spec.
- Audio. The same argument applies, but video is where the transcode cost is.
## Acceptance criteria
- [ ] The `.m3u8` substring check is gone from `VideoPlayer.svelte` (both sites)
and transport comes from the tagged enum.
- [ ] `bun run check`, `bun run test`, `bun run format:check`, `bun run lint` pass.
- [ ] `cargo fmt` clean, `cargo clippy -D warnings` clean, `bun run test:rust` passes.
- [ ] `bun run check:boundary` passes — and the reviewer confirms by reading that
no transport/kind decision was reconstructed in `src/`, since the tripwire
only catches item-type array literals.
- [ ] `bindings.ts` regenerated from Rust, not hand-edited.
- [ ] New code carries `// TRACES:` comments; `bun run traces:validate` passes and
coverage stays ≥ the CI ratchet.
- [ ] The `EXT-X-STREAM-INF` count is recorded in this spec before DR-223 is
started or dropped.
- [ ] DR-121 is removed from `read-through-media-cache.md` with a pointer here.
## Testing
- Rust: `PlaybackInfo` fixtures → expected `PlaybackKind`, one per branch
(supported container direct-plays; unsupported codec transcodes; a ceiling
below the source bitrate transcodes even when the codec is fine).
- Rust: `Transport` round-trips through serde with the tag the frontend matches.
- Frontend: adapter selection driven by `transport`, including the case a URL
ending `.m3u8` is served as `Progressive` — that test fails on today's code,
which is the point.
- Extend `tauriIntegration.test.ts` for the new command params (camelCase rule).
- No test asserts a URL substring.
## TRACES
| Piece | Tag |
|---|---|
| `StreamSelection` / `Transport` | `UR-079 \| DR-219` |
| Per-session ceiling | `UR-074 \| DR-220` |
| `available` from media source | `UR-079 \| DR-221, DR-121` |
| Direct-play negotiation | `UR-079 \| DR-222` |
| Adaptation, if built | `UR-079 \| DR-223` |
| ExoPlayer/mpv consumers | `UR-003, UR-004 \| DR-224` |
## Notes for the implementer
- **Phase 1 is worth doing on its own**, even if everything after it is dropped.
It removes a real leak and costs almost nothing.
- Do not frame any phase as "no Rust changes required" — that framing is what
produced the leak `scoped-search-boundary.md` records.
- `ConnectivityMonitor` is the precedent for DR-223: derive network facts from
real traffic, never from a side-channel poller.
- A parallel Claude session may be active in this repo — `git diff` before
"repairing" unexpected changes. Requirement ids in particular moved twice
during the writing of this spec.
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# Spec: Build provenance (git describe + build profile)
**Status:** Proposed — not started. `src-tauri/build.rs` still contains only
`tauri_build::build()`, and nothing reports a version over IPC. Note that
`scripts/set-version.sh` has since landed, which changes the "three hand-bumped
files" premise below: versions are now stamped from one place.
**Requirements:** ⚠️ the suggested id **DR-093 has since been allocated** to the
traceability coverage gate — allocate a fresh id (DR-215 or later) on
implementation. Build provenance surfaced in-app and in logs; no UR — this is a
diagnostic capability, not a user feature
**UX spec:** n/a — adds an About block to Settings; no new flow
**Supersedes / revises:** —
## Summary
Make every build say exactly what it is. Today a running JellyTau reports no
version at all — not in the UI, not in the logs — and the only version string in
the tree is the hand-maintained `0.2.0` duplicated across three files.
This adds a `build.rs`-generated provenance string (`git describe` + short SHA +
dirty flag + debug/release profile), exposes it over IPC, and renders it in a new
Settings About block. It also removes one of the three hand-bumped version
files.
## Motivation
The concrete problem: when a user reports "the equalizer does nothing on my
device" — which is a live risk for v0.2.0, whose Android audio settings are not
yet device-verified — there is currently no way to tell which build they are
running. Tag? Master? A local debug build from three weeks ago? The bug report
cannot distinguish them.
Two smaller irritations this also fixes:
- **Debug builds masquerade as releases.** `0.2.0` is `0.2.0` whether it came
from a tagged release or `bun run tauri dev`.
- **Three files carry the version.** `package.json`, `src-tauri/Cargo.toml` and
`src-tauri/tauri.conf.json` must be bumped in lockstep; the release checklist
exists partly to stop them drifting.
### What this deliberately does *not* do
**The canonical version stays hand-bumped in `Cargo.toml`.** Cargo requires a
literal semver string at manifest-parse time and cannot derive it from git. The
same is true of `tauri.conf.json`. Attempting to source the *release* version
from a tag trades a scripted, reviewable bump for a fragile build-time
dependency that breaks in exactly the environment we care most about (CI, in
Docker, from a shallow clone).
So: **the release version is authored; the build provenance is derived.** They
answer different questions — "what release is this?" versus "what commit is this
binary actually built from?" — and only the second benefits from git.
## Layer assignment
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| Capturing git describe / SHA / dirty state at compile time | Rust (`build.rs`) | Only the Rust build has a compile step that can shell out to git and bake the result into the binary. A frontend equivalent would report the *dev server's* state, not the shipped binary's. |
| Degrading to a sentinel when git is unavailable | Rust (`build.rs`) | Build-environment concern. Must never fail the build — CI runs in Docker from a shallow clone. |
| Release version (`0.2.0`) | Rust (`Cargo.toml`, authored) | Domain fact about the product, not derivable from the environment. |
| Deciding *what a build is* (release / dev / dirty) | Rust | Domain classification. The frontend must not infer "this is a dev build" from a string shape — it renders what it is told. |
| Rendering the About block, copy-to-clipboard | Frontend | Pure presentation. |
Borderline row: the release/dev/dirty classification could be done in the
frontend by pattern-matching the describe string. It goes to Rust because that is
a *rule about what constitutes a release build*, and it would have to change if
the tagging scheme changed — the litmus test in the template puts that in Rust.
Send a typed enum, not a string for the frontend to parse.
## Design
### `build.rs`
```rust
fn main() {
emit_build_provenance();
tauri_build::build()
}
fn emit_build_provenance() {
let describe = std::process::Command::new("git")
.args(["describe", "--tags", "--always", "--dirty"])
.output()
.ok()
.filter(|o| o.status.success())
.and_then(|o| String::from_utf8(o.stdout).ok())
.map(|s| s.trim().to_string())
.unwrap_or_else(|| "unknown".to_string());
println!("cargo:rustc-env=JELLYTAU_GIT_DESCRIBE={describe}");
// Rebuild when HEAD moves or a ref is written, so the string does not go
// stale across commits. Guarded: these paths do not exist in a git-less
// source tarball, and emitting rerun-if-changed for a missing path would
// force a rebuild every time.
for p in [".git/HEAD", ".git/refs"] {
if std::path::Path::new("../").join(p).exists() {
println!("cargo:rerun-if-changed=../{p}");
}
}
}
```
🔴 **`build.rs` must never fail the build.** Every git call is
`.ok()`-swallowed; a missing git binary, a shallow clone, or a source tarball all
yield `"unknown"`. A build that breaks because git is absent would be a worse bug
than the one this fixes.
Note the `../` prefixes: `build.rs` runs with CWD at `src-tauri/`, so the repo's
`.git` is one level up.
### The provenance type
```rust
/// TRACES: DR-093
#[derive(specta::Type, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct BuildInfo {
/// Authored release version (Cargo.toml).
pub version: String,
/// `git describe --tags --always --dirty`, or "unknown".
pub git_describe: String,
/// What kind of build this is — classified in Rust, not inferred by the UI.
pub kind: BuildKind,
}
/// TRACES: DR-093
#[derive(specta::Type, Serialize)]
#[serde(rename_all = "camelCase")]
pub enum BuildKind {
/// Built from a clean, exactly-tagged commit in release mode.
Release,
/// Release-mode build that is not on a clean tag (e.g. master, or dirty).
Untagged,
/// debug_assertions build.
Development,
/// Git state unavailable at build time.
Unknown,
}
```
Classification:
```rust
let kind = if cfg!(debug_assertions) {
BuildKind::Development
} else if describe == "unknown" {
BuildKind::Unknown
} else if describe.contains('-') { // "v0.2.0-3-gcb79a37" or "...-dirty"
BuildKind::Untagged
} else {
BuildKind::Release
};
```
### Command
```rust
/// TRACES: DR-093
#[tauri::command]
#[specta::specta]
pub fn get_build_info() -> BuildInfo { … }
```
No parameters, so the camelCase param rule does not apply; the struct fields do
need `#[serde(rename_all = "camelCase")]` (above). Regenerate `bindings.ts`.
Also log the provenance once at startup, next to the existing init logging —
that is what makes a user-submitted log file self-identifying, which is most of
the value.
### Settings About
A new block at the bottom of `src/routes/settings/+page.svelte`, rendering
version, describe string, and a badge for non-release builds. One
copy-to-clipboard button that yields a paste-ready block for bug reports:
```
JellyTau 0.2.0 (v0.2.0-3-gcb79a37-dirty, development)
linux x86_64
```
Platform/arch come from the existing Tauri APIs; do not shell out.
### Removing one version file
`tauri.conf.json`'s `"version"` field can be omitted, in which case Tauri falls
back to the Cargo version. That takes the bump from three files to two.
**Verify before adopting**: confirm the Android `versionName`/`versionCode` and
the NSIS installer version still resolve correctly with the field absent —
Android packaging in particular reads the Tauri config. If either regresses,
keep the field and drop this part; it is a convenience, not the point of the
spec.
## Out of scope
- Deriving the *release* version from git tags (see Motivation).
- A build-time timestamp. It defeats reproducible builds and adds little over
the commit SHA.
- CI provenance/attestation, SBOM, signing.
- Displaying the Jellyfin server version (separate concern, already available
from `/System/Info`).
## Acceptance criteria
- [ ] `cargo build` succeeds with git absent, from a shallow clone, and from a source tarball with no `.git` — yielding `"unknown"` in each case, never a build failure.
- [ ] A tagged clean release build reports `BuildKind::Release`; `bun run tauri dev` reports `Development`; a dirty tree reports `Untagged` (release mode) with `-dirty` in the describe string.
- [ ] The describe string changes after a new commit without a manual `cargo clean` (rerun-if-changed works).
- [ ] Provenance is logged once at startup.
- [ ] Settings About renders version + describe + build-kind badge, with working copy-to-clipboard.
- [ ] 🔴 CI checkouts that build a shippable artifact set `fetch-depth: 0`, or their artifacts are knowingly stamped `unknown`. Currently only `publish-docs.yml` sets it; `build-release.yml` has five checkouts and `build-and-test.yml` two, all of which would report `unknown` as-is.
- [ ] **No toolchain installed in CI** — git is already present in the builder image; nothing new is added.
- [ ] `bun run check`, `bun run test`, `bun run check:boundary` pass.
- [ ] `cargo fmt` clean, `cargo clippy` clean, `bun run test:rust` passes.
- [ ] `bindings.ts` regenerated.
- [ ] DR-093 allocated in `requirements.md`; new code carries `// TRACES:`.
## Testing
**Rust**: the classification is pure and must be extracted from the command as
`classify_build(describe: &str, debug: bool) -> BuildKind` so it can be tested
directly. Cover: `"v0.2.0"``Release`; `"v0.2.0-3-gcb79a37"``Untagged`;
`"v0.2.0-dirty"``Untagged`; `"unknown"``Unknown`; `debug = true` → always
`Development` regardless of describe.
`build.rs` itself is not unit-testable. Verify its failure path manually by
building with `PATH` stripped of git, and from a `git archive` tarball — both
must succeed with `"unknown"`.
**Frontend**: assert the About block renders each `BuildKind` correctly, and that
it renders the backend-supplied kind rather than re-deriving it from the string
(a test that passes a `Release` kind with a `-dirty` describe and asserts the
badge follows the *kind* would catch that regression).
## TRACES
- `build.rs` provenance emission → `// TRACES: | DR-093`
- `BuildInfo` / `BuildKind` / `classify_build``// TRACES: | DR-093`
- `get_build_info` command → `// TRACES: | DR-093`
- Settings About block → `// TRACES: | DR-093`
- `classify_build` tests → `UT-BUILD-1`
- Allocate **DR-093** in `requirements.md` ("Build provenance: git describe and
build profile surfaced in-app and in logs"). Next free DR at time of writing
is DR-093.
## Notes for the implementer
- Do the `build.rs` + command + logging first; the About UI is the smaller half
and the logging alone delivers most of the diagnostic value.
- The `fetch-depth: 0` change is the easiest part to forget and the one that
makes CI artifacts useless if missed — it is why that acceptance box is
flagged. Weigh it per workflow: test-only jobs do not need it.
- Do not add a build timestamp "while you are in there" — see Out of scope.
- A parallel Claude session may be active — `git diff` before "repairing"
unexpected changes.
-423
View File
@@ -1,423 +0,0 @@
# Spec: Desktop native video — mpv renders the picture, everywhere
**Status:** Proposed
**Requirements:** UR-080 (new) → DR-231 … DR-237 (new); IR-033 (new)
**UX spec:** n/a — nothing about the player's appearance changes. What changes is
what is behind the controls.
**Supersedes / revises:** consumes and closes
[linux-native-video-spike.md](linux-native-video-spike.md), whose gates
authorised exactly this spec and nothing more. Settles finding 2 of
[playback-backend-unification.md](playback-backend-unification.md) on the
desktop; finding 3 was already settled by DR-229. Absorbs the video half of what
[windows-native-audio-backend.md](windows-native-audio-backend.md) leaves open.
**Depends on:** backend-owned stream selection (DR-225 … DR-230), the branch
below this one. mpv is a *consumer* of `StreamSelection`, never a second place to
decide what to play.
**Destination on completion:**
[05-platform-backends.md](../architecture/05-platform-backends.md) — a "Native
Video Compositing (Desktop)" section beside the existing Android one, which this
mirrors; and [01-rust-backend.md](../architecture/01-rust-backend.md) — the
device profile becomes renderer-dependent, beside the stream-selection section.
**The spike is deleted in the same commit**, its three traps and its
hardware-decode table folded in; they are the durable half.
## Summary
mpv decodes and draws video on **every desktop platform**, composited beneath the
transparent webview, exactly as Android already does with ExoPlayer. The HTML5
`<video>` path and hls.js are then **deleted**, not merely bypassed.
The user-visible change is that most video stops being re-encoded by the server
before it can be watched. The change for whoever maintains this is that video
goes from three renderers to two.
## Motivation
### The transcode is a decoder constraint, not a rendering one
Desktop video goes through an h264 HLS transcode because the picture is drawn by
a WebKitGTK `<video>` element, and that element decodes little else. The device
profile therefore claims `h264` alone. That is not a statement about the machine
— the same machine runs mpv, which decodes essentially everything in the library
— it is a statement about which widget is holding the frame.
DR-228 made the cost measurable. Over 40 items negotiated against the development
server:
| Profile | Direct play |
|---|---|
| Desktop / WebKitGTK — `h264` only, 2ch | **7%** |
| Android / ExoPlayer — `h264,hevc,vp8,vp9,av1,mpeg4` + `ac3,eac3`, 6ch | **85%** |
The sampled library is ~80% hevc. **Those rows differ only by which component
decodes.**
Moving the picture to mpv is what lets the desktop row claim what the machine
can actually do, and that — not the compositing — is the product.
> **The 85% is a ceiling, not a shipped result.** It was measured with a profile
> containing `ac3,eac3`. The Android device later used for verification reports
> neither in its `MediaCodecList` — no Dolby licence, normal for a tablet — so
> eac3 content, about a third of the sampled library, correctly transcodes there.
> Realising any of this depends on DR-234, deriving the profile from the renderer
> rather than from the platform, which is why that requirement is load-bearing
> and not tidy-up.
### One desktop video path, not two
This is why the spec covers Windows rather than stopping at Linux.
Today video has **three** renderers: ExoPlayer, the WebKitGTK `<video>` element,
and (on Android, via the opt-out) that same element again. A Linux-only version
of this work would make it four, permanently: mpv on Linux, HTML5 on Windows,
ExoPlayer on Android, plus hls.js underneath the HTML5 one. Every seek strategy,
every track switch, every quality change, every lifecycle bug would then have one
more place to be got right — and the HTML5 path would survive indefinitely
because *something* would still need it.
Finishing the job removes that: **mpv on desktop, ExoPlayer on Android**, and
`hls.js`, `html5Adapter.ts`, `videoLoaderFor` and the webview video element all
go. The maintenance win is the reason Windows is in this spec and not in a
follow-up that never gets written.
### Three blockers are gone
1. **Compositing works, including Wayland.** The spike ran all six gates; the
2024 "not possible on Wayland at all" claim is out of date when the render API
is used instead of foreign-window embedding.
2. **There is no ABR to lose.** DR-229: the server's master playlist carries one
`EXT-X-STREAM-INF`. hls.js was demuxing, not adapting.
3. **A direct-play path exists.** It did not when the spike was written. DR-228
built it; DR-230 proved the contract is player-agnostic.
And on Windows specifically, `tauri-plugin-libmpv` lists Windows as its **fully
tested** platform — the inverse of the Linux situation the spike had to
disprove. The embedding difficulty was always WebKitGTK-specific.
## Layer assignment
| Logic / responsibility | Layer | Why it belongs there |
|---|---|---|
| **Which codecs this device can decode** | **Rust** | Domain: it is the input to Jellyfin's `PlaybackInfo` negotiation. It stops being a property of the *platform* and becomes a property of *the renderer in use* — see "The structural change". |
| Which backend renders video | **Rust** | Rust already owns this (`use_html5_element` / `VideoBackend`). It stops being a `cfg!` constant and becomes a runtime fact. |
| What stream to play (direct / remux / transcode, transport, ceiling) | **Rust — already decided** | DR-225. mpv consumes `StreamSelection`. Re-deriving any of it in a new backend would be the defect DR-225 exists to remove, restated. |
| Creating the GL surface, reparenting the webview, owning the render context | **Rust (platform layer)** | Native window and GL-context lifetime. Not presentation, and not expressible above the IPC boundary at all. |
| Render-context ↔ GL-context lifetime binding | **Rust** | A correctness invariant over native resources. DR-232. |
| Frame pacing (update callback, `report_swap`) | **Rust** | Timing against the compositor; mpv's own contract. |
| Hardware-decode selection | **Rust** | A capability question about the machine, answered from what mpv reports it actually selected. |
| Z-order of controls over video, overlay chrome, letterbox colour | **Frontend / mpv** | Presentation. Controls already draw over a transparent webview on Android; mpv paints its own letterbox bars (better than the Android equivalent, which shipped DR-194 as a defect). |
| Whether the surface is visible right now | **Frontend** | `nativeVideoActive` already exists and toggles `data-native-video`. Unchanged. |
### The structural change
Everything above is routine except one row, and it carries the whole benefit.
`video_codecs` in `build_device_profile` is a **compile-time constant per
platform**:
```rust
#[cfg(all(not(target_os = "android"), target_os = "linux"))]
let (video_codecs, audio_codecs) = ("h264".to_string(), "aac,mp3,opus,…");
```
That is correct only while a build has exactly one video renderer. It must be
derived from **which renderer will decode this stream**, which is runtime state.
It looks like configuration and is not: it is the input that decides whether the
server re-encodes, it changes when Jellyfin's API or our renderer changes, and
getting it wrong fails *silently* — a claimed codec the renderer cannot decode is
a black picture or silence, which is DR-148 and DR-228's audio override already.
**Write this against "the active video renderer", never `cfg!(target_os)`.** It
is the single piece that must not be Linux-shaped, because phase 2 reuses it
unchanged.
## Design
### Backend and compositing (DR-231, IR-033)
An `MpvVideoBackend` beside the existing `MpvBackend` (audio). The mpv side —
render context, FBO, update callback, hwdec — is **shared**; only the surface
differs per platform:
| Platform | Surface | Status |
|---|---|---|
| Linux (X11 + Wayland) | `gdk_cairo_draw_from_gl()` in the default vbox's `draw` handler, over a `GdkGLContext` on its `GdkWindow`. No reparenting — see below | Render path proven by the spike; the *overlay* approach it used is rejected |
| Windows | Native HWND child beneath a transparent WebView2 | Phase 2 |
`vo=libmpv` plus `mpv_render_context_create` with `MPV_RENDER_PARAM_OPENGL_FBO`.
Webview transparency via `with_transparent(true)` — no window-level transparency;
the spike showed it is neither used nor needed.
**G1's untested half failed, and the design changed because of it.**
Reparenting Tauri's webview into a `GtkOverlay` attaches cleanly and then aborts
the process on the first click. `tauri-runtime-wry` connects a
button-press handler to the webview that walks a hard-coded path:
```rust
webview.parent() // "This one should be GtkBox"
.parent() // ...and this one the GtkWindow
.downcast::<gtk::Window>().unwrap()
```
An overlay makes that chain `webview → GtkOverlay → GtkBox`, the downcast fails,
and the panic is non-unwinding so it kills the app. Nothing in configuration
avoids it: on Linux `attach_resize_handler` is called **unconditionally** (the
Windows equivalent is guarded by `is_decorated()`), and the decoration check that
would make the handler inert runs *after* the unwrap.
**So the webview is not moved at all.** mpv draws into the *default vbox's own
`draw` handler* instead, via `gdk_cairo_draw_from_gl()` over a `GdkGLContext`
created on that widget's `GdkWindow`. GTK3 draws a container before its children,
so the webview composites on top for free — the same z-order the overlay was for,
without touching the widget tree Tauri walks.
That is strictly better than the overlay it replaces: no reparent, no extra
widget, and the arrangement cannot be broken by a Tauri upgrade that assumes its
own layout. It is also why "the surface attached successfully" is not the gate —
a click is.
Three traps from the spike, each of which cost a debugging cycle and each of
which looks like a platform limitation and is not:
1. **`LC_NUMERIC` must be reset *after* `gtk::init()`.** mpv refuses to start
under a non-C numeric locale. `mpv_backend.rs` already handles this but has no
GTK init in front of it; here `gtk::init()` applies the user's locale
afterwards and `mpv_create` returns null.
2. **libepoxy exports GL entry points as *data* symbols.** There is no `glFoo`
function — there is `epoxy_glFoo`, a variable holding a lazily-resolving
pointer. `get_proc_address` must return the pointer **stored at** that symbol;
returning the symbol's own address makes mpv jump into non-executable data and
take SIGSEGV on the first GL call. The `epoxy` crate does this correctly but is
unusable — its `gl_generator` dependency pulls a yanked `xml-rs`.
3. **Frame pacing is not optional and its symptom misleads.** See DR-233.
### Render-context lifetime (DR-232) — the crash defence
The spike's one unexplained SIGSEGV landed in a *decoder* thread with no Tauri,
GTK or GL frame in the stack, and three plausible causes failed to reproduce it
across ~13 minutes of targeted stress.
What is **not** unexplained is that the spike had no defence: it never calls
`mpv_render_context_free` and never tears down on `unrealize`, so nothing stopped
the GL context being recreated beneath the render context. That is DR-184 on
Android restated — a surface outliving its player.
Built as a requirement in its own right, not as a fix for a crash we cannot yet
reproduce:
- Render context created on `realize`, freed on `unrealize`, same thread, before
the GL context goes away.
- The update callback is unregistered **before** the context is freed, so a
callback cannot land on a freed context.
- Playback teardown and surface teardown are ordered, not racing.
If the crash recurs after this, it is a different bug and the likeliest cause is
out of the search space. If it does not, we needed this anyway.
### Frame pacing (DR-233)
Register `mpv_render_context_set_update_callback`; redraw only when it reports a
frame ready; call `mpv_render_context_report_swap` after each render.
Recorded because the failure mode is a trap: driving `queue_render()` off the
frame clock every tick without reporting the swap leaves mpv nothing to time
against. It looks fine in a window and **judders at fullscreen**, which reads as
a compositing or GPU limit and is neither.
### Renderer-dependent device profile (DR-234)
`build_device_profile` takes the active video renderer and derives the codec
lists from it:
| Renderer | Video codecs | Audio (video direct play) | Channels |
|---|---|---|---|
| mpv (desktop native) | `h264,hevc,vp8,vp9,av1,mpeg4` | platform list incl. `ac3,eac3` where the sink can voice it | from the audio route |
| WebKitGTK `<video>` | `h264` | webview-decodable set only | 2 |
| ExoPlayer (Android) | unchanged | unchanged | unchanged |
The existing `video_audio_codecs()` narrowing exists because *the webview decodes
a narrower audio set than the platform*. With mpv decoding, that no longer
applies to the video path — but the multichannel bound still does, since a 5.1
track direct-played into a 2-channel sink is silence or inaudible dialogue. Both
constraints stay, sourced from the renderer rather than assumed.
**This is what converts the 7% figure upward** (toward, not necessarily to, the 85% ceiling — see the caveat above), and it is also the change most able to break
playback silently — so it lands after compositing is proven, covered by the
DR-228 override tests.
### Deleting the webview video path (DR-235)
`get_player_status` stops reporting `use_html5_element: true` on desktop;
`supports_native_video` becomes true there.
Deletion is staged, because a path cannot be removed while a shipped platform
still needs it:
| Phase | Linux | Windows | HTML5 video path |
|---|---|---|---|
| 1 | mpv | HTML5 | alive — Windows needs it |
| 2 | mpv | mpv | alive but unreached |
| 3 | mpv | mpv | **deleted**, with hls.js |
Phase 3 is a real phase with its own acceptance criterion, not a "later". The
whole maintenance argument for including Windows collapses if the fork survives.
Android keeps ExoPlayer and keeps the webview as its documented opt-out; the
`<audio>` element and the background-audio handoff are untouched throughout.
**What happens when mpv fails to initialise.** With no HTML5 path there is no
silent fallback, and inventing one resurrects what we deleted. The
graceful-backend-init principle applies as written: fall back to the no-op
backend, emit `backend-init-failed`, and surface a real error rather than a black
rectangle. An honest failure beats a hidden downgrade to the transcode we are
trying to stop paying for.
### Hardware decode (DR-236)
The spike established the load-bearing fact: **hardware decode works through the
render API** (`hwdec-current` reported `nvdec-copy` on the discrete GPU), so the
direct-play prize is not traded for software decoding.
Policy is decided from what mpv reports it *selected*, never from what it was
asked for:
- Prefer zero-copy VA-API on the integrated GPU where the driver is present.
- `auto` reached for the discrete GPU in **copy-back** mode on a hybrid
Intel+NVIDIA laptop — the least efficient hardware path — so `auto` is a
fallback, not the default.
- `vaapi` silently fell back to software on the spike box because `vainfo` was
absent. A missing driver must be detected and logged, not mistaken for a
compositing limit.
- Log `hwdec-current` at start-up; knowing what was actually chosen is the whole
diagnostic value.
### Windows: what phase 2 actually costs (DR-237)
Not hidden, because it is the part most likely to be underestimated:
- **The surface is different code.** WebView2 in an HWND, not GTK. A transparent
WebView2 over a native child window is a solved arrangement, but DR-231's
Linux surface does not transfer. Everything else does.
- **libmpv is currently a Linux-only dependency**, and Windows is
**cross-compiled from Linux** via `x86_64-pc-windows-msvc` + `cargo-xwin`. Phase
2 must source a Windows libmpv (DLL + import library) into that cross-build and
ship the DLL in the NSIS bundle.
- **LGPL obligations follow the DLL.** DR-216 already records them for Linux:
keep the linkage dynamic, ship libmpv's licence text with any bundle carrying
it. The Windows bundle inherits both.
- **`bun run test:rust` and CI must still build.** Per the CI rule, any tool this
needs goes into the builder image and is pushed — never installed at job time.
Windows also gains a native *audio* decoder as a side effect, which is what
[windows-native-audio-backend.md](windows-native-audio-backend.md) wants and
cannot currently have. If that spec lands first, phase 2 inherits its build work
and shrinks to the surface.
## Out of scope
- **Android.** Unchanged in every respect.
- **macOS.** Not a shipped target. If it becomes one it joins phase 2's shape.
- **Audio backends.** mpv already plays audio on Linux; this adds a video
renderer beside it. Windows audio is its own spec.
- **HDR, tone mapping, multi-window.** Not exercised by the spike at all.
- **Re-deciding what stream to play.** DR-225 owns that. If this spec finds
itself choosing a URL, something has gone wrong.
## Acceptance criteria
**Phase 1 — Linux**
- [ ] Tauri's own webview reparents into the overlay (the untested half of G1),
on X11 **and** Wayland.
- [ ] Video plays, seeks and switches audio track in mpv, with the Svelte
controls composited over it and alpha blending intact.
- [ ] The render context is freed on `unrealize` and the update callback
unregistered before the free; a test demonstrates the ordering.
- [ ] A direct-play negotiation returns `DirectPlay` for an hevc source that
today returns `Transcode`, and it plays.
- [ ] Direct-play rate over the same 40-item sample rises from 7% toward the
Android figure. **Record the number.**
- [ ] mpv init failure emits `backend-init-failed` and surfaces an error rather
than falling back to a transcode.
- [ ] `hwdec-current` is logged and is not copy-back where zero-copy is available.
- [ ] A soak covering seek, track switch and fullscreen runs clean for an agreed
duration. **The spike's SIGSEGV is why this is a criterion.**
**Phase 2 — Windows**
- [ ] libmpv links in the `cargo-xwin` cross-build; the DLL and its licence ship
in the NSIS bundle; any new tool lives in the builder image, not in a CI step.
- [ ] Video plays composited under a transparent WebView2.
- [ ] The device profile, lifetime and hwdec code are **reused, not
reimplemented** — a reviewer confirms no `cfg!(target_os = "linux")` guards
them.
**Phase 3 — deletion**
- [ ] `use_html5_element` is false on every desktop platform.
- [ ] `hls.js` is gone from `package.json`; `html5Adapter.ts`, `videoLoaderFor`
and the `<video>` element are deleted; Android's opt-out and the
background-audio `<audio>` path still work.
**Throughout**
- [ ] `bun run check`, `bun run test`, `bun run format:check`, `bun run lint` pass.
- [ ] `cargo fmt` clean, `cargo clippy -D warnings` clean, `bun run test:rust` passes.
- [ ] `bun run check:boundary` passes, and a reviewer confirms no stream decision
was reconstructed in the new backend.
- [ ] `bindings.ts` regenerated from Rust.
- [ ] `bun run traces:validate` passes; coverage stays ≥ the CI ratchet.
- [ ] The spike and this spec are folded into
[05-platform-backends.md](../architecture/05-platform-backends.md) and both
deleted in the same commit.
## Testing
- **Rust, pure:** the device profile per renderer — mpv claims hevc, the webview
does not, the multichannel bound survives both. The DR-234 table as a
table-driven test.
- **Rust, pure:** `PlaybackInfo` fixtures that transcode under the webview
profile and direct-play under the mpv profile — the direct-play conversion as a unit
test, not only as a measurement.
- **Rust:** teardown ordering — callback unregistered before context freed, freed
before GL context destroyed. Structure it so the ordering is assertable without
a live GL context.
- **Frontend:** no desktop path selects an HTML5 video adapter. After phase 3,
the adapter does not exist and the test goes with it.
- **Manual / soak:** the criterion above. The spike's automated fullscreen and
resize soaks are reusable and already written.
## TRACES
| Piece | Tag |
|---|---|
| mpv video backend + compositing | `UR-080 \| DR-231, IR-033` |
| Render-context lifetime binding | `UR-080 \| DR-232` |
| Frame pacing | `UR-080 \| DR-233` |
| Renderer-dependent device profile | `UR-080, UR-070 \| DR-234` |
| Webview video path removed | `UR-080 \| DR-235` |
| Hardware-decode policy | `UR-080 \| DR-236` |
| Windows surface + cross-build | `UR-080 \| DR-237` |
## Notes for the implementer
- **Read the spike before writing a line.** Its three traps and its
hardware-decode table are the most valuable things in this directory, and each
cost a debugging cycle to find.
- **mpv consumes `StreamSelection`; it does not decide.** The transport is on the
queue item (DR-230). If you are parsing a URL, stop.
- **Guard nothing on `cfg!(target_os = "linux")` that phase 2 will need.** That is
the one avoidable mistake here.
- The Android backend is the reference for the *shape* of this — transparent
webview over a native surface at index 0. Read `05-platform-backends.md`'s
Android section for what shipped and what its defects were (DR-184 surface
lifetime, DR-194 letterbox).
- Do not call sync/blocking APIs from mpv event callbacks that can re-enter the
player or hold a lock. The existing deadlock gotchas apply.
- A parallel Claude session may be active in this repo — `git diff` before
"repairing" unexpected changes.
- This branch is stacked on backend-owned stream selection. Rebase when that
merges rather than merging master into it.
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# Spec: Diagnostics and persistent logging
**Status:** Proposed
**Requirements:** UR-078 → DR-218; tests UT-209
**UX spec:** n/a (one Settings section; no new flow)
**Destination on completion:** [09-security.md](../architecture/09-security.md)
for the redaction rules, and a new "Logging and diagnostics" section in
[01-rust-backend.md](../architecture/01-rust-backend.md) for the capture path.
## Summary
JellyTau records what it does, keeps it in a size-capped file on disk, survives a
crash, and can hand the whole thing to the user as one file to attach to a bug
report. Credentials never reach that file.
## Motivation
Today the app forgets everything the moment it exits.
The Rust half logs through `env_logger` to **stdout only**. A user who launched
from a desktop icon has no stdout. On Android it is worse than useless:
`env_logger` writes to stdout, which is not logcat, so **the Rust backend's
output is invisible on the platform where most of the hard bugs have been** — the
autoplay deadlock, the truncated-stream restart, the background-audio stall. The
frontend has a proper leveled facade (`logger.ts`, DR-204) but it only reaches
the webview console, which nobody can read on a phone.
The practical consequence is visible in this project's history: several bugs took
multiple rounds of "can you reproduce it under `adb logcat`" before anyone could
even see what happened. A user reporting "the episode randomly restarted" is
reporting the symptom of a race whose evidence was discarded microseconds later.
There is also no crash record at all. If the app panics, the user sees it vanish
and we learn nothing.
## Layer assignment
| Logic / responsibility | Layer | Why it belongs there |
|---|---|---|
| What is captured, at what level, and where it is written | Rust | Retention and capture policy is backend behaviour; it must work identically whether the UI is open, backgrounded, or gone |
| Log rotation and the size cap | Rust | Storage management, same class as the download and image caches |
| **Redaction of credentials** | Rust | Security-critical, and the values (tokens, `api_key`, keyring payloads) are domain vocabulary owned by the auth layer. A frontend that redacted its own messages would still not cover anything Rust wrote |
| Panic capture and persistence | Rust | Only Rust can install a panic hook |
| Assembling the export (archive + environment summary) | Rust | Touches the filesystem and the app's own paths; also the last point at which redaction can be enforced over everything |
| Which log level is active | Rust owns the *stored* setting and applies it; the frontend renders the picker | Same split as every other setting: the value is state the backend acts on, the control is presentation |
| Showing the export path / opening the folder | Frontend | Pure presentation |
| Formatting a log line for the webview console | Frontend | `logger.ts` already owns this; unchanged |
Borderline: **the frontend forwarding its own messages into the Rust sink.**
Arguably presentation "sending data down". Placed as: the frontend calls a
plugin, and the *decision of what to persist and how to redact it* stays in Rust
— which is the tie-breaker, because a bug report containing a token would be a
security defect regardless of which half wrote the line.
## Design
### Capture
Replace the `env_logger` init in `lib.rs` with `tauri-plugin-log`, which is the
official plugin and already does the three things we would otherwise hand-roll
(CLAUDE.md: prefer official plugins before writing native code):
| Target | Purpose |
|---|---|
| `Stdout` | unchanged behaviour for `bun run tauri dev` |
| `LogDir { file_name: "jellytau" }` | the persistent, rotating file |
| `Webview` (dev only) | Rust lines visible in the webview console while developing |
On Android the plugin routes to **logcat**, which is the single largest
improvement here and needs no code of ours.
Rotation: `RotationStrategy::KeepAll` is wrong for a phone. Use a size cap
(5 MB) with one retained previous file, so a long session cannot fill a device
and yesterday's evidence still exists.
Level: default `Info`, `RUST_LOG` still honoured, and a stored user preference
that survives restart (a user reproducing a bug needs debug logging *across* the
restart that reproduces it).
### Redaction
A pure function in a new `src-tauri/src/utils/diagnostics.rs`:
```rust
pub fn redact(line: &str) -> String
```
It replaces the value in each of these with `[REDACTED]`, case-insensitively:
- `api_key=…` and `ApiKey=…` in URLs and query strings
- `X-Emby-Token: …`, `X-MediaBrowser-Token: …`, `Authorization: …` headers
- `"AccessToken":"…"` in JSON bodies
- `MediaBrowser Token="…"` in the Emby auth header form
What it deliberately does **not** remove: the server host, item ids, and
filenames. Those are what make a log useful, they are not secrets, and stripping
them would produce a diagnostic bundle nobody can diagnose anything from.
Applied at two points: on every line the export copies, and — because the export
is not the only way a file leaves a device — inside the log formatter itself, so
the token never reaches disk in the first place. The export-time pass exists to
cover files written before an upgrade.
### Export
```rust
#[tauri::command]
pub async fn diagnostics_export(app: AppHandle) -> Result<DiagnosticsBundle, String>
```
Writes a single `.zip` and returns where it went:
```rust
#[derive(Serialize, Type)]
#[serde(rename_all = "camelCase")]
pub struct DiagnosticsBundle {
pub path: String,
pub size_bytes: u64,
pub file_count: usize,
}
```
Contents: the current and previous log files (redacted), plus `environment.txt`
— app version, OS and arch, whether the build is debug, the active log level, and
the *scheme and host* of the configured server. No token, no username, no path
inside the user's home beyond the app's own directories.
### Frontend
`logger.ts` keeps its `console.*` pass-through untouched — live object references
in devtools are a stated design goal of DR-204 — and *additionally* forwards a
stringified copy at `info` and above to the plugin, so one timeline contains both
halves of the app. Forwarding is fire-and-forget and never throws into a caller:
a logging failure must not become an application failure.
A `Diagnostics` section in Settings shows the log location, a level picker, and
an **Export diagnostics** button that reports the resulting path and, on desktop,
offers to reveal it.
## Out of scope
- **An Android share sheet.** Export writes to the app's files directory and
reports the path; wiring a native `ACTION_SEND` intent is a Kotlin change that
belongs with the other native work, not here.
- **Uploading anywhere.** Nothing is transmitted. The user attaches the file
themselves, which is also what keeps this from becoming telemetry.
- **Frontend `debug` forwarding.** Only `info`+ crosses the IPC boundary; per-tick
player debug would be thousands of calls a minute.
## Acceptance criteria
- [ ] Rust logs reach a rotating file on Linux and **logcat** on Android.
- [ ] A panic is recorded and is present in the next export.
- [ ] Frontend `info`/`warn`/`error` appear in the same file as Rust's lines.
- [ ] An export containing a request URL with `api_key=` shows `[REDACTED]`, and
a test greps the produced bundle for the token to prove it.
- [ ] The log file cannot exceed the cap.
- [ ] `bun run check`, `bun run test`, `cargo fmt`, `cargo clippy -D warnings`,
`bun run test:rust`, `bun run check:boundary` all pass.
- [ ] `bindings.ts` regenerated (new command and struct).
- [ ] New code carries `TRACES:` comments.
## Testing
**Rust** (`cargo test`): `redact` over each credential shape, including one
already-redacted line (idempotent) and a line containing no secret (unchanged);
that the environment summary contains a host but no token; that rotation respects
the cap.
**Frontend** (`vitest`): that the forwarder is called for `info`+ and not for
`debug`; that a rejected forward does not propagate to the caller.
## TRACES
| Piece | Tag |
|---|---|
| `utils/diagnostics.rs` | `UR-078 \| DR-218` |
| `commands/diagnostics.rs` | `UR-078 \| DR-218` |
| logging init in `lib.rs` | `UR-078 \| DR-218` |
| `logger.ts` forwarding | `UR-078 \| DR-204, DR-218` |
| Settings section | `UR-078 \| DR-218` |
| tests | `\| DR-218 \| UT-209` |
## Notes for the implementer
- A parallel Claude session may be active — `git diff` before "repairing"
anything unexpected.
- `utils/lock.rs` already sets and restores a panic hook in its tests. The
diagnostics hook must chain to the previous hook rather than replace it, or
those tests start reporting panics they deliberately suppress.
- Do not call the exporter from an event callback that can re-enter the player:
it does blocking file I/O (see the deadlock note in CLAUDE.md).
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# Spec: Remove Jellyfin-specific models from the frontend
> **Implementation status (branch `frontend-domain-model`, worktree
> `../JellyTau-domain-model`):** Catalog surface **done**. The frontend's *item
> classification* and *time units* no longer speak Jellyfin:
> - `domain/` module is the single source of truth; `MediaKind` enum + isolated
> `from_jellyfin` mapping. The model gained real distinctions the flat
> `item_type` had hidden: `LiveChannel` / `ChannelItem` / `Channel`.
> - Every catalog `item.type === "..."``item.kind` (0 remaining in `src/`).
> - Catalog ticks → milliseconds (`durationMs`, `playbackPositionMs`);
> `formatDuration` takes ms; progress bars are unit-consistent.
> - User-facing type badge → `kindLabel()`.
> - Old Jellyfin-named fields remain **dual-carried** on the wire so nothing broke.
>
> **Deferred (tracked, not done):**
> - `primaryImageTag``imageId` rename (naming-only; ~40 sites across catalog +
> `PlayerMediaItem`/`MergedMediaItem`, the latter needing a Rust `image_id`
> round-trip). Catalog `MediaItem` already has `imageId`.
> - Player/session/reporting tick math (`Queue`, `SessionCard`, `RemoteControls`,
> `playbackReporting`, `playerEvents`) — crosses storage/Jellyfin *command
> signatures* in ticks; needs those commands to accept ms (phase 4).
> - `stream.type` (`mediaStreams[].type`) — Jellyfin stream vocabulary (phase 4).
> - Delete `playbackUnits.ts` / `jellyfinFieldMapping.ts` once their last
> consumers migrate; drop the dual-carried fields once nothing reads them.
**Status:** Partially implemented (catalog surface); see banner.
**Requirements:** Architectural (boundary integrity — CLAUDE.md core principles).
Allocate new DRs on acceptance; suggested: DR for the domain `MediaItem`/`MediaKind`
type, DR for tick/image-tag hoisting, DR for the phased frontend migration
(see [requirements.md](../requirements.md)). Relates to UR-007, UR-008, UR-034.
**UX spec:** n/a — zero user-visible behaviour change. This is a pure
architecture/boundary migration.
**Supersedes / revises:** none. Extends the boundary work started in
[scoped-search-boundary.md](scoped-search-boundary.md) from *taxonomy* to the
*whole media model*.
## Summary
The frontend currently consumes Jellyfin's data model directly: `MediaItem` is a
Jellyfin DTO (`runTimeTicks`, `primaryImageTag`, `parentIndexNumber`, a
stringly-typed `type: string` carrying Jellyfin's item vocabulary), mirrored via
specta into **36+ frontend files**, with **127 `item.type === "…"` string
comparisons across 23 files** and two frontend utility modules
(`playbackUnits.ts`, `jellyfinFieldMapping.ts`) doing Jellyfin-specific unit and
field conversion in the presentation layer.
This spec defines a **provider-neutral domain model**, owned by Rust, that the
Jellyfin repository maps *into*. The frontend consumes only that model. When done,
no Jellyfin vocabulary — item-type strings, ticks, image tags, Jellyfin field
names — remains in `src/`.
## Motivation
Two concrete problems, one strategic:
1. **Boundary violation at scale.** Per CLAUDE.md, the frontend is
presentation-only and Rust owns the domain. Today the *domain model itself* is
Jellyfin's wire shape, propagated unchanged across IPC. The frontend knows what
a "tick" is, what `primaryImageTag` means, and that `"Audio"` is a track. That
is domain knowledge in the wrong layer, 36 files deep.
2. **Fragility.** `type: string` is unchecked: a typo (`"Epis0de"`) or a Jellyfin
rename fails silently at runtime with no compiler help, across 127 sites. Tick
math (`* 10_000_000`) duplicated frontend-side is a class of bug the backend
should have already resolved.
3. **Strategic (the reason we chose the ambitious target):** a neutral domain
model is the precondition for **ever supporting a non-Jellyfin backend** (Plex,
local files, Subsonic). As long as the UI speaks Jellyfin, that door is welded
shut.
## Layer assignment
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| Definition of the media domain model (`MediaItem`, `MediaKind`) | **Rust** | The canonical shape the whole app reasons about; must not be a provider's wire format. |
| Jellyfin DTO → domain mapping (ticks→ms, image tag→url/id, `"Audio"``Track`, `PremiereDate``releaseDate`) | **Rust**, in the Jellyfin repository | Provider-specific translation; changes if Jellyfin changes; is the definition of "how Jellyfin maps to our domain." |
| Tick arithmetic (`playbackUnits.ts`) | **Rust** | A Jellyfin unit. The frontend should never see ticks; it receives `durationMs`/`positionMs`. |
| Sort-field mapping (`jellyfinFieldMapping.ts`, `title→SortName`) | **Rust** | Maps neutral sort keys to Jellyfin query fields — provider vocabulary. Frontend sends a neutral `SortKey`. |
| `MediaKind` classification (is this a track / album / episode?) | **Rust** | Derived from Jellyfin's `item_type`; the frontend receives the already-classified kind. |
| Choosing which kind renders as a card vs a list row; grid/list toggle; group order | **Frontend** | Pure presentation over the neutral `kind`. Changes only if the UI is redesigned. |
| Navigation decisions (`kind === Track && albumId` → go to album) | **Frontend** | Presentation/routing over neutral fields. |
**Borderline calls, resolved:**
- *`MergedMediaItem`* (the lightweight now-playing projection) is already
half-neutral (`title`, `artist`, `duration`) — it becomes a straightforward
subset of the new domain model, not a special case.
- *Context discriminators* `"album"`, `"playlist"`, `"remote"` (in `TrackList`,
playback context, sessions) are **already domain-neutral** — they are *our*
vocabulary, not Jellyfin's. They stay as-is; do not confuse them with
`item_type`. Only the Jellyfin item-type strings move.
- *`mediaStreams[].type === "Audio"/"Subtitle"/"Video"`* (track selection in
VideoPlayer) is Jellyfin stream vocabulary too, but is lower-risk and
self-contained — deferred to a late phase, not phase 1.
## Design
### Single canonical model, one location, isolated mappings
The domain model is defined **once**, in a dedicated top-level Rust module
`src-tauri/src/domain/`, and is the single source of truth shared across the
whole app:
```
src-tauri/src/domain/
media.rs canonical MediaItem, MediaKind, and the other media types
from_jellyfin.rs Jellyfin DTO -> domain mapping, ISOLATED here
mod.rs re-exports
| tauri-specta (export_typescript_bindings test)
v
src/lib/api/bindings.ts generated MediaItem/MediaKind — the frontend copy
```
- **One definition.** `domain::MediaItem` is *the* model. Rust (repositories,
player, downloads) uses it directly. The frontend uses the generated `bindings.ts`
projection of it. There is no second hand-written copy in either language, so it
cannot drift — "shared between frontend and backend" is realized by generation,
not duplication.
- **Mappings live beside the model, never in consumers.** All provider translation
(`JellyfinItem``domain::MediaItem`, ticks→ms, image-tag→id, item-type→`MediaKind`)
lives in `domain/from_jellyfin.rs`. It is the *only* place Jellyfin vocabulary
touches the domain type. Adding a second provider later means a new
`from_<provider>.rs` beside it — the model and every consumer stay untouched.
- **`domain` is a top-level module** (not under `repository/`) because `MediaItem`
is used by `player/`, `download/`, and `playback_mode/` too — it is not
repository-specific.
- The existing `JellyfinItem` DTO + `to_media_item()` in
[online.rs](../../src-tauri/src/repository/online.rs) is the seam that already
exists; it **moves** into `domain/from_jellyfin.rs` and is enriched to do real
translation instead of copying `item_type` through.
### The domain model (Rust)
```rust
// src-tauri/src/domain/media.rs — provider-neutral. NO Jellyfin vocabulary.
#[derive(specta::Type, Serialize, Deserialize, Clone, Copy, Debug, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub enum MediaKind {
Track, Album, Artist, Playlist, // music
Movie, Series, Season, Episode, // video
Person, // cast/crew
Channel, Folder, // containers/live
}
#[derive(specta::Type, Serialize, Deserialize, Clone, Debug)]
#[serde(rename_all = "camelCase")]
pub struct MediaItem {
pub id: String,
pub name: String,
pub kind: MediaKind, // was: type: String
pub is_folder: bool,
pub server_id: String,
// Times in milliseconds — NEVER ticks.
pub duration_ms: Option<i64>, // was: run_time_ticks
// Image as a resolved identifier the frontend turns into a URL via the
// existing image command — no raw Jellyfin tag semantics leak.
pub image_id: Option<String>, // was: primary_image_tag
pub backdrop_image_ids: Option<Vec<String>>,
pub overview: Option<String>,
pub genres: Option<Vec<String>>,
pub production_year: Option<i32>,
pub release_date: Option<String>, // was: premiere_date (ISO-8601)
pub community_rating: Option<f64>,
pub official_rating: Option<String>,
// Relationships — already neutral, kept.
pub album_id: Option<String>, pub album_name: Option<String>,
pub album_artist: Option<String>, pub artists: Option<Vec<String>>,
pub artist_items: Option<Vec<ArtistItem>>,
pub series_id: Option<String>, pub series_name: Option<String>,
pub season_id: Option<String>, pub season_name: Option<String>,
// Ordinal position — rename off Jellyfin's index vocabulary.
pub track_number: Option<i32>, // was: index_number
pub disc_number: Option<i32>, // was: parent_index_number
pub user_data: Option<UserData>,
pub media_streams: Option<Vec<MediaStream>>,
pub media_sources: Option<Vec<MediaSource>>,
pub people: Option<Vec<Person>>,
}
```
The existing `JellyfinItem` DTO (already defined in `online.rs`, deserialized
from the Jellyfin JSON) **moves into `domain/from_jellyfin.rs`** and stays
private to that module. Its `to_media_item()` — today a near-passthrough that
copies `item_type` straight across — is enriched into the single, tested place
that:
- classifies `item_type: String``MediaKind` (including the edge cases found in
the audit: `"ChannelFolderItem"``Channel`/`Folder` by `is_folder`,
`"TvChannel"``Channel`, `"Composer"/"Director"/"Writer"``Person`,
`"Video"``Movie` or a video leaf). Unknown strings map to `Folder` or a new
`Other` variant — **decide at implementation; must not panic.**
- converts `run_time_ticks``duration_ms` (`ticks / 10_000`).
- maps `PremiereDate``release_date`, image tags → image ids.
`SortKey` enum + its Jellyfin field mapping (`jellyfinFieldMapping.ts` contents)
moves into the Jellyfin repository; the command takes a neutral `SortKey`.
### 🔴 The `search-event` / dual-payload rule applies again
Every path that returns `MediaItem` — command returns **and** the `search-event`
and any other event payloads — emits the new domain shape. Both sides of a
twice-delivered result must match (same rule as
[scoped-search-boundary.md](scoped-search-boundary.md)). Grep for `MediaItem` in
event definitions before declaring a phase done.
### Frontend after
- `MediaItem`/`MediaKind` come from generated `bindings.ts`.
- `item.type === "Audio"``item.kind === "track"` (127 sites, mechanical).
- `runTimeTicks` usages → `durationMs`; **delete `playbackUnits.ts`** (ticks no
longer cross the boundary; keep only any purely-display seconds↔clock helpers if
they exist, which are not Jellyfin-specific).
- `primaryImageTag``imageId` through the existing image-URL command.
- **Delete `jellyfinFieldMapping.ts`**; sort options send a neutral `SortKey`.
- Assert with the boundary tripwire + a new grep (see acceptance).
## Phased migration
This is too large and too collision-prone for one change. Phases are independently
shippable, each keeps all tests green, and each is a reviewable PR:
1. **Establish the `domain/` module + enriched mapping, tests — no frontend
change yet.** Create `src-tauri/src/domain/{media,from_jellyfin,mod}.rs`. Move
`JellyfinItem`/`to_media_item` in. Add `MediaKind` and the neutral fields to
`domain::MediaItem` as *additive, defaulted* fields, and populate them in the
mapping, while **keeping the old Jellyfin-named fields too** (dual-carry). The
wire shape is a superset of today's, so the frontend still compiles and
behaves identically. Lands the authority + full mapping unit coverage first,
with zero blast radius on the 52 construction sites (they set the old fields;
new ones default).
2. **Flip the wire shape.** Commands + events emit the new `MediaItem`.
Regenerate `bindings.ts`. Frontend breaks to compile errors — fix them
mechanically (`type``kind`, values `"Audio"``"track"`, `runTimeTicks`
`durationMs`, `primaryImageTag``imageId`). This is the big mechanical PR;
`bun run check` is the driver.
3. **Delete the frontend conversion helpers** (`playbackUnits.ts` ticks,
`jellyfinFieldMapping.ts`) and route sorting through the neutral `SortKey`.
4. **Stream vocabulary** (`mediaStreams[].type`) and any remaining stragglers;
tighten the boundary check to forbid Jellyfin item-type strings in `src/`
outside tests.
Ship 1 → 2 → 3 → 4 as separate PRs. Do **not** attempt all four at once.
## Out of scope
- Actually adding a second backend (Plex/Subsonic). This spec only *unblocks* it.
- Changing any user-visible behaviour, layout, or copy.
- The player-internal `PlayerMediaItem` / `MediaSessionType` shapes, except where
they carry the fields being renamed — align them in phase 2 only if the compiler
demands it.
- Context discriminators (`"album"`, `"playlist"`, `"remote"`) — already neutral.
## Acceptance criteria
- [ ] No Jellyfin item-type string (`"Audio"`, `"MusicAlbum"`, `"Series"`, …) is
compared against `.type`/`.kind` anywhere in `src/` (outside tests). Verify:
`grep -rIn '\.kind === "\(Audio\|MusicAlbum\|MusicArtist\|Series\|Episode\|Movie\|Playlist\)"' src/` returns nothing.
- [ ] No `Ticks`, `runTimeTicks`, `primaryImageTag`, `PremiereDate`, or Jellyfin
sort-field name (`SortName`, `RunTimeTicks`, …) appears in `src/` outside
tests. `playbackUnits.ts` (ticks) and `jellyfinFieldMapping.ts` are deleted.
- [ ] `MediaItem`/`MediaKind`/`SortKey` in the frontend come from `bindings.ts`.
- [ ] The `From<JellyfinMediaDto>` mapping is total and never panics on an unknown
item type (Rust test with a garbage type string).
- [ ] Behaviour is identical: same library/search/home rendering, same sorting,
same navigation, offline included.
- [ ] Both command returns and event payloads carry the new shape (no flicker).
- [ ] `bun run check`, `bun run test`, `bun run check:boundary` pass;
`cargo fmt`/`cargo clippy`/`bun run test:rust` pass; `bindings.ts` regenerated.
## Testing
**Rust** (`cargo test`): the `From<JellyfinMediaDto> for MediaItem` mapping is the
critical surface —
- every known `item_type` → correct `MediaKind` (table test over all 20 values
found in the audit, incl. `ChannelFolderItem`, `TvChannel`, `Composer`);
- unknown type string → safe fallback, no panic;
- `run_time_ticks``duration_ms` (10_000 divisor), boundary/None cases;
- `SortKey` → Jellyfin field mapping (port `jellyfinFieldMapping.ts`'s cases).
**Frontend** (vitest): update the many tests asserting `.type`/`runTimeTicks`;
they become `.kind`/`durationMs`. `jellyfinFieldMapping`/`playbackUnits` tests are
deleted with their modules. Add a compose/render test proving `kind`-based
branching matches the old `type`-based branching for a representative mix.
## TRACES
Per [CLAUDE.md](../../CLAUDE.md): the domain type + mapping
`UR-007, UR-008 | <new DR>`; the tick/field hoist `<new DR>`; frontend migration
phases share the DRs of the capability each touches (don't invent per-file DRs).
## Notes for the implementer
- **This is the highest-collision change in the repo's history** — it touches 36+
frontend files and the core Rust types. A parallel Claude session in any media
file will conflict. Strongly prefer a dedicated worktree per phase, and
`git diff` before repairing anything (CLAUDE.md gotchas / project memory).
- Phase 1 deliberately maps *back* to the old shape so it can land safely ahead of
the disruptive flip. Resist the urge to skip it.
- IPC camelCase rules apply to the new enums/structs
([04-type-sync-and-threading.md](../architecture/04-type-sync-and-threading.md)):
`#[serde(rename_all = "camelCase")]`; tagged-enum tag convention; regenerate
`bindings.ts`, never hand-edit.
- Reviewed against [SPEC-REVIEW-CHECKLIST.md](SPEC-REVIEW-CHECKLIST.md) — the
Layer assignment table above is the load-bearing section.
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# Spec: Migrate to libmpv2 and declare the project licence
**Status:** Partially implemented — the `LICENSE` file has landed (part 2). The
`libmpv``libmpv2` swap (part 1) is **not** done: `src-tauri/Cargo.toml` still
pins the abandoned crate to a git branch.
**Requirements:** UR-003 → IR-003 (revises the MPV integration); no new user-facing behaviour
**UX spec:** n/a
**Supersedes / revises:** dependency and licensing housekeeping identified in [playback-backend-unification.md](playback-backend-unification.md)
## Summary
Two related pieces of housekeeping that block or complicate later work:
1. Replace the abandoned `libmpv` crate (pinned to a git branch) with the
maintained `libmpv2`.
2. Add a `LICENSE` file. The project has none, which leaves its legal status
undefined while it links GPL-licensed libmpv.
Neither changes user-visible behaviour. Both are prerequisites for
[windows-native-audio-backend.md](windows-native-audio-backend.md).
## Motivation
### The dependency is dead
```toml
# src-tauri/Cargo.toml
libmpv = { git = "https://github.com/ParadoxSpiral/libmpv-rs.git", branch = "master" }
```
- crates.io `libmpv` 2.0.1 was published **2020-09-29**.
- The upstream repo's last commit was **2023-01-08**; nothing since was released.
- We pin a git *branch*, so builds are not reproducible — the same lockfile-less
checkout can resolve differently over time, and CI has no protection if the
branch moves or the repo disappears.
`libmpv2` (kohsine/libmpv2-rs) is a maintained fork of exactly this crate:
6.0.0 released **2026-05-12**, ~23.5k recent downloads against the original's
~1.1k, releases roughly quarterly since 2024.
### The project has no licence
There is no `LICENSE`/`COPYING` file and `src-tauri/Cargo.toml` has no `license`
field. The project is open source and will never be commercial, so this is purely
an omission — but it matters because we link libmpv, and "no licence" defaults to
*all rights reserved*, which is incompatible with distributing a GPL-derived
work.
## Design
### Part 1 — licence
**Use GPLv3.** This is forced, not chosen:
- mpv's default build is **GPLv2-or-later**, so the combined work must be
GPL-compatible.
- Apache-2.0 is **GPLv2-incompatible** (patent-termination and indemnification
clauses) but GPLv3-compatible.
- A scan of the dependency tree found Apache-2.0-**only** crates with no
alternative arm — most importantly **`tao`** (Tauri's own windowing crate),
plus `sync_wrapper`, `gethostname`, and `ring` (Apache-2.0 AND ISC).
`tao` is unavoidable in a Tauri app, so GPLv2 is unavailable. Exercising mpv's
"or later" option puts the combination at **GPLv3**.
Actions:
- Add `LICENSE` containing the GPLv3 text.
- Add `license = "GPL-3.0-or-later"` to `src-tauri/Cargo.toml` and `license` to
`package.json`.
- Note in the README that the binary links libmpv (GPLv2+) and FFmpeg.
Because the project is open source, we use mpv's **default GPL build** — no
`-Dgpl=false`, no LGPL FFmpeg build, and none of the LGPL §6 relinking analysis
that a proprietary app would need. We keep VAAPI/VDPAU/X11 and every GPL FFmpeg
filter.
🔴 Never build FFmpeg with `--enable-nonfree` — that produces a binary that is
**unredistributable under any licence**, open source or not.
### Part 2 — libmpv → libmpv2
```toml
# Linux (and later Windows, per the Windows audio spec)
libmpv2 = "=6.0.0"
```
Pin exactly: `libmpv2` has broken its API in **every** major release.
Breaking changes to expect, from the changelog:
| Version | Change | Impact here |
|---|---|---|
| 4.0.0 | Removed command helper methods — call `mpv.command(...)` directly | Low; we already use `command`/`set_property` |
| 5.0.0 | Removed `mpv_node` support entirely (properties return strings; parse JSON yourself); `EventContext` folded into `Mpv`; `ProtocolContext``Protocol` | **Medium**`start_event_loop` uses `create_event_context()`; check whether that call still exists |
| 6.0.0 | `RenderContext::new()``Mpv::create_render_context()`; `'static` bound on `OpenGLInitParams`; render context now borrows `Mpv` (fixes a use-after-free) | **None** — we do not use the render API |
The last row matters: we run mpv audio-only (`video = no`), so the entire render
surface is irrelevant to us. Consider disabling the default `render` feature to
reduce build surface.
The main porting work is the event loop in `mpv_backend.rs``wait_event`,
`disable_deprecated_events`, and the `FileLoaded` / `PlaybackRestart` /
`PropertyChange` / `EndFile` handling, given 5.0.0 folded `EventContext` into
`Mpv`.
Everything else — `set_property` calls, the `af` filter graph, the 250ms position
thread, the seek-suppression window — should port unchanged.
## Layer assignment
No logic moves. This is a dependency swap plus a licence file; the
`PlayerBackend` trait boundary is untouched.
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| mpv event → `PlayerStatusEvent` mapping | Rust (unchanged) | Already correct; only the binding API beneath it changes. |
## Out of scope
- Any behaviour change. If playback behaves differently after this, that is a bug.
- Windows support — separate spec, but this must land first.
- Adopting the render API. We are audio-only on mpv.
- Re-licensing decisions beyond adding the file the project already implies.
## Acceptance criteria
- [ ] `LICENSE` (GPLv3) present; `license` field set in `Cargo.toml` and `package.json`.
- [ ] A full dependency-licence audit has been run (`cargo install cargo-license && cargo license`) and confirms no GPLv3-incompatible dependency. *(The scan behind this spec resolved 441 of 575 crates from the local registry cache; the remaining 134 are unverified.)*
- [ ] `libmpv` git dependency removed; `libmpv2` pinned to an exact version.
- [ ] Linux audio playback works identically: play/pause/seek/volume, queue advance, gapless, EQ, normalization, sleep timer.
- [ ] Position updates still arrive at 250ms; the 150ms post-seek suppression still prevents the jump-to-zero glitch.
- [ ] `EndFile` still emits `PlaybackEnded` only for EOF (not STOP/QUIT/ERROR) — autoplay depends on this.
- [ ] Builder image updated if the libmpv dev package requirement changed; **no toolchain install added to any CI step**.
- [ ] `bun run check`, `bun run test`, `bun run check:boundary` pass.
- [ ] `cargo fmt` clean, `cargo clippy` clean, `bun run test:rust` passes.
## Testing
The existing `mpv_backend_test.rs` plus the `build_af_filter`,
`eq_filter_entries`, and `normalize_filter_entry` tests are the regression net —
they must pass unchanged, since none of them touch the binding API.
The event loop has no unit tests and is where the risk concentrates. Verify
manually on Linux:
1. Play → pause → play; confirm position does not flash to 0:00 (the known
playing-event regression).
2. Seek mid-track; confirm no jump-to-zero within 150ms.
3. Let a track end naturally; confirm autoplay advances (exercises `EndFile` EOF).
4. Press stop; confirm autoplay does **not** advance.
5. Sleep-timer expiry; confirm it stops without triggering autoplay.
Cases 35 are the ones most likely to break silently, and each corresponds to a
bug already fixed once in this codebase.
## TRACES
- `MpvBackend` construction / event loop → existing `// TRACES: UR-003 | IR-003`, unchanged
- No new requirement IDs; this is a dependency migration.
## Notes for the implementer
- Do this **before** the Windows audio backend.
- Read the 4.0/5.0/6.0 changelogs before writing code — the crate has broken API
in every major release, most recently two months before this spec.
- The crates.io `repository` field for `libmpv2` points at `kohsine/libmpv-rs`,
but the repo was renamed to **`libmpv2-rs`**; the old raw URLs 404.
- `libmpv2-sys` ships pregenerated bindings and vendored headers, so no libclang
is needed at build time — relevant to keeping the builder image thin.
- A parallel Claude session may be active — `git diff` before "repairing"
unexpected changes.
-503
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@@ -1,503 +0,0 @@
# Spec: Linux native video — bounded compositing spike
**Status:** **Run 2026-08-21 — compositing works; G5 carries an open crash.**
The compositing claim it set out to test is falsified on Linux. See "Result".
This file stays open until the implementation spec exists. **ABR is resolved**
the playlist carries one `EXT-X-STREAM-INF`, so finding 3 is false and there is
no adaptation for mpv to lose. The remaining blocker is the unexplained SIGSEGV
under G5, which is a lifetime problem, not a compositing one.
**Requirements:** none allocated. This spike produces a decision record, not
product code — same shape as
[playback-backend-unification.md](playback-backend-unification.md), which is
Accepted with no requirement ids of its own. Ids are allocated by the
*implementation* spec that follows a green result.
**UX spec:** n/a
**Supersedes / revises:** re-opens finding 2 of
[playback-backend-unification.md](playback-backend-unification.md) on Linux only.
Its findings 3, 4, 5 and 6 stand unchallenged and are **not** in scope here.
**Destination on completion:**
[05-platform-backends.md](../architecture/05-platform-backends.md) — a "Native
Video Compositing (Linux)" section alongside the existing Android one. The
durable half is the mechanism and the two traps below; the gates and phases are
disposable.
## Summary
Test one falsifiable claim: *a native video surface cannot be composited with a
Tauri webview on Linux.* The claim is load-bearing — it is why Linux video goes
through an h264 HLS transcode into a WebKitGTK `<video>` element instead of
decoding directly in the mpv instance we already run. The spike renders one mpv
frame beneath the webview, on both X11 and Wayland, and stops. It ships no
product code and flips no defaults.
A green result does **not** authorise native video on Linux; it authorises
writing the spec that would.
## Motivation
[playback-backend-unification.md](playback-backend-unification.md) finding 2
concluded that native video cannot be composited with a Tauri webview, on
evidence from `tauri-plugin-libmpv`'s platform table, wry#284, tauri#6343, and a
Tauri maintainer's 2024 statement that a GTK widget as a child X11 window is
"a bit hacky and it is not possible on Wayland at all."
Two things have changed since that was written, and one thing was never tested.
**1. The general claim has already been falsified on one platform — by us.**
Android now renders ExoPlayer video on a TextureView at index 0 *behind a
transparent Tauri WebView*, with the Svelte controls drawn over it, on by
default. See
[05-platform-backends.md](../architecture/05-platform-backends.md#native-video-compositing-android).
That is exactly the composition finding 2 said was impossible, shipped. What
survives of the finding is a narrower, WebKitGTK-specific claim — which is worth
testing on its own terms rather than inheriting.
**2. A Tauri app now ships Linux native mpv as an active platform.**
[MaxVideoPlayer](https://github.com/MaxMB15/MaxVideoPlayer) (354 commits) embeds
libmpv via **EGL + X11 child window / Wayland subsurface**, with Linux and macOS
active and Windows only planned — the inverse of the plugin matrix finding 2
sampled. Its existence does not prove our case works, but it does mean the
Wayland half of the maintainer quote is out of date.
**3. The render API was never tested.** Every source in finding 2 describes
*foreign-window embedding*: `--wid`, child windows, a second toplevel
position-synced to a `getBoundingClientRect()` div. That is a different mechanism
from mpv's render API, where **we** own the GL context and mpv draws into an FBO
we hand it (`mpv_render_context_create` / `mpv_render_context_render`, with an
upstream [GTK example](https://github.com/mpv-player/mpv-examples/pull/44/files)).
Tauri v2 exposes `WebviewWindow::gtk_window()` and `default_vbox()`, so the
target is a widget inside Tauri's own GTK tree — not a foreign window, not a
second toplevel, and therefore not the thing that was found broken.
The prize is direct play: no h264 transcode, hardware decode, libass subtitles,
and no server CPU burned on every Linux play.
## The blocker a green spike does not clear
🔴 **Read this before treating a green result as a green light.**
Finding 3 of the unification spec stands: **mpv has no adaptive bitrate.** It
delegates HLS to FFmpeg's demuxer, which picks one variant at open and never
adapts. The webview path has real ABR via hls.js. Compositing is necessary for
native video on Linux; it is not sufficient.
There is a plausible answer, and this spike exists partly to make it testable:
**ABR only matters on the transcode path.** A direct-played file has no variant
ladder to adapt between — the adaptation the server offers *is* the transcode.
So "mpv when the stream is direct-play, HTML5 + hls.js when the server
transcodes" would sidestep finding 3 rather than fight it, and it maps onto a
decision Rust already makes when it builds the stream URL.
That is a **hypothesis, not a conclusion.** It is out of scope here. Record it in
the spike's decision note so the follow-up spec starts from it.
## Layer assignment
The spike introduces no product logic. The table below is the assignment the
*follow-up* would inherit, written now so a green result cannot drift into
frontend decisions during implementation.
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| Which backend renders video on this platform (`use_html5_element`, `supports_native_video`) | Rust | Already there — `get_player_status` in `commands/player/mod.rs` computes it from a `cfg!`. The spike would widen that `cfg!`, not relocate the decision. The frontend already consumes it via `createAdapter`. |
| Whether *this stream* is direct-play or transcoded, and therefore whether mpv or hls.js renders it | Rust | Domain. It depends on Jellyfin's `PlaybackInfo` response, container/codec support, and the bitrate cap — all of which change when Jellyfin's API or our quality ladder changes. The frontend must never re-derive it from a URL shape. |
| Creating, sizing, and destroying the GL surface; the mpv render context | Rust | Owns the backend and the GTK window handle. There is no presentation decision in it. |
| Where controls, subtitles, and the mini-player sit above the video, and the letterbox/poster treatment | Frontend | Pure presentation; changes only if the UI is redesigned. Precisely the split the Android path already uses. |
| Reserving the video rectangle in layout and marking the shell transparent | Frontend | Presentation. `nativeVideo.ts` + the `[data-native-video="active"]` rule in `app.css` already do this for Android and are platform-agnostic. |
Borderline row, stated with its tie-breaker: *"is the surface currently
attached?"* reads like view state, but the Android work found that a surface left
in the hierarchy outlives its player (DR-184). Attachment is backend lifecycle →
**Rust**, with the frontend told about it, not asked.
## Design
A throwaway branch. No merge to `master` except the decision note.
### What gets built
One `#[cfg(target_os = "linux")]` experiment behind a feature flag, in a scratch
binary or an ignored test — **not** in `MpvBackend`'s constructor path:
1. From `app.get_webview_window(...)`, take `gtk_window()` and `default_vbox()`.
2. Reparent the webview into a `gtk::Overlay`: `GLArea` as the main child, the
webview as the overlay child.
3. Set the webview background to fully transparent (wry does this when
`"transparent": true`; verify it reaches `webkit_web_view_set_background_color`).
4. In the `GLArea`'s `render` signal, drive
`mpv_render_context_render` with `MPV_RENDER_PARAM_OPENGL_FBO` pointing at the
FBO GTK bound for us.
5. Play one local file. Draw an opaque HTML element over the video area.
`video = no` and `audio-display = no` are set in
[mpv_backend.rs:135-141](../../src-tauri/src/player/mpv_backend.rs#L135-L141);
the spike overrides them on its own `Mpv` handle rather than editing that path.
### Bindings
The current pin is `libmpv = { git = "…/libmpv-rs", branch = "master" }` — the
dead pin [libmpv2-migration.md](libmpv2-migration.md) exists to replace. The
render API lives in `libmpv2-sys` (`mpv_render_context_render`); the safe wrapper
was only ever a PR against the old crate. **Use `libmpv2-sys` raw FFI directly in
the spike.** Do not block the spike on the migration, and do not let the spike
half-perform it — if the spike goes green the migration becomes a hard
prerequisite of the implementation, which is the ordering
[windows-native-audio-backend.md](windows-native-audio-backend.md) already sits
in.
### IPC
None. The spike crosses no boundary. If it goes green, the follow-up changes only
the *value* of the existing `useHtml5Element` / `supportsNativeVideo` fields — no
new wire shapes, no `bindings.ts` regeneration.
## Gates
Each is pass/fail with a named failure. Stop at the first red and write it up —
a red result is a successful spike.
| # | Question | Fails if |
|---|---|---|
| G1 | Can a custom GTK widget join Tauri's widget tree and survive the window's lifetime? | `default_vbox()` is absent/unusable, or reparenting the webview breaks input or crashes. |
| G2 | Does the webview still paint, with a transparent backdrop, over that widget? | The backdrop renders opaque black ([wry#1540](https://github.com/tauri-apps/wry/issues/1540)) or the webview stops repainting ([tauri#12800](https://github.com/tauri-apps/tauri/issues/12800)). **This is the highest-risk gate.** |
| G3 | Does mpv render a frame into our FBO? | The render context refuses GTK's context, or frames land in the wrong buffer. |
| G4 | Does HTML drawn over the video area actually appear over it? | Video covers the controls — the exact failure wry#284 and tauri#6343 report. Without this, the whole thing is worthless: our controls, subtitles and mini-player all sit over the video. |
| G5 | Does it survive resize, fullscreen, and SPA navigation away and back? | Flicker on resize, or a surface that outlives its route. |
| G6 | Does it hold on **both** X11 and Wayland? | Either session backend fails. Wayland is the one the 2024 maintainer quote says is impossible — test it first, not last. |
G6 is not a nice-to-have. A result that only holds on X11 is red for a project
shipping to current desktops.
### Time box
If G1G4 are not all green, stop and write the result up. The value of this spike
is a dated, method-specific answer — including "still no, and here is the
mechanism" — not a working player.
## Result (2026-08-21)
Run on GNOME, kernel 7.1.8, libmpv 2.5.0 (mpv 0.41.0), GTK 3.24.52, WebKitGTK
2.52.6, wry 0.53.5 — the versions `src-tauri/Cargo.lock` resolves. Spike source:
a ~250-line standalone crate using wry + gtk + `libmpv2-sys` raw FFI, driving
mpv's render API with an update callback, frame-gated repaints and
`report_swap`.
| Gate | Result | Observed mechanism |
|---|---|---|
| G1 widget in GTK tree | 🟡 **partial** | `GtkOverlay` with `GtkGLArea` as main child and the wry webview as overlay child works, built directly. **Tauri's own `default_vbox()` was not exercised** — see below. |
| G2 webview paints transparently over it | ✅ green | `with_transparent(true)` alone. No window-level transparency was used or needed. |
| G3 mpv renders into our FBO | ✅ green | `vo=libmpv` + `mpv_render_context_create` with `MPV_RENDER_PARAM_OPENGL_FBO` into the FBO GTK binds. |
| G4 HTML over video | ✅ green | Opaque panel and a translucent control bar both drew over moving video. |
| G5 resize / drag / fullscreen | 🟡 **green on appearance, suspect underneath** | No flicker, gap or misalignment, and smooth once frame pacing was correct (trap 3). But the only crash observed came from the only session where fullscreen was exercised — see "What is still open". |
| G6 X11 **and** Wayland | ✅ green | Identical on both; `GDK_BACKEND` flipped between runs. |
**Finding 2 of [playback-backend-unification.md](playback-backend-unification.md)
is false on Linux** when tested by the render API rather than by foreign-window
embedding. Wayland — the half the 2024 maintainer quote called impossible — is
green.
Better than the gate asked for: the translucent bar composited *alpha* against
the video, not merely opaque-over. Scrims, gradient fades and subtitle backdrops
therefore work, which is most of how a player UI actually looks. mpv also painted
the letterbox bars black on its own — the Android equivalent was a shipped defect
(DR-194).
### Three traps, each of which cost a debugging cycle
Carry these into the implementation; each produced a failure that looked like a
platform limitation and was not.
1. **`LC_NUMERIC` must be reset *after* `gtk::init()`, not before.** mpv refuses
to start under a non-C numeric locale. `mpv_backend.rs` already handles this,
but it has no GTK init in front of it; on this path `gtk::init()` applies the
user's locale afterwards and `mpv_create` returns null.
2. **libepoxy exports GL entry points as *data* symbols.** There is no `glFoo`
function to resolve — there is `epoxy_glFoo`, a variable holding a lazily
resolving function pointer. `get_proc_address` must return the pointer *stored
at* that symbol; returning the symbol's own address makes mpv jump into
non-executable data and take SIGSEGV/SEGV_ACCERR on the first GL call. The
`epoxy` crate does this correctly but is unusable — its `gl_generator`
dependency pulls a yanked `xml-rs`.
3. **Frame pacing is not optional, and its symptom is misleading.** Driving
`queue_render()` off the widget's frame clock on every tick, without calling
`mpv_render_context_report_swap` after each render, leaves mpv with nothing to
time against. Playback looks fine in a window and **judders at fullscreen**
which reads as a compositing or GPU limit and is neither. The fix is to
register `mpv_render_context_set_update_callback`, redraw only when it says a
frame is ready, and report the swap afterwards. Fullscreen was smooth
immediately once both were in place.
### Hardware decode through the render API
Tested by asking mpv what it actually selected (`hwdec-current`), not what it was
asked for. All three ran 20s clean at a steady 30 fps.
| `hwdec` | `hwdec-current` | Note |
|---|---|---|
| `vaapi` | `no` | **Did not engage** on this box — silently fell back to software. `vainfo` is not installed, so the libva driver for the Iris Xe iGPU is likely absent. No render-API error; this looks like a missing driver package, not a compositing limit. |
| `auto` | `nvdec-copy` | Hardware decode **does** work through the render API, on the discrete RTX 3050. Copy-back rather than zero-copy interop. |
| `no` | `no` | Software. Clean baseline. |
The load-bearing result is the middle row: **hardware decode is compatible with
mpv's render API**, so the direct-play prize is real and not traded away for
software decoding. Which decoder to prefer is an implementation question — on a
hybrid Intel+NVIDIA laptop `auto` reached for the discrete GPU in copy-back mode,
which is the least efficient hardware path. An implementation should evaluate
zero-copy VA-API on the iGPU (after confirming the driver is installed) before
accepting `auto`.
`hwdec=auto-safe` probes Vulkan video decode, which this GPU does not support.
It logs two `Failed setup for format vulkan` / `no frame!` pairs at start-up and
then settles on `nvdec-copy` — the same place `auto` lands. A first reading of
these logs mistook the start-up pair for a per-frame flood; **it is not**. Every
run, clean or crashed, contains exactly two. `auto-safe` is not implicated in
anything.
### What is still open
- **The Tauri half of G1.** The spike built its own `GtkOverlay`. The app must
instead reach `WebviewWindow::gtk_window()` / `default_vbox()` and reparent
Tauri's existing webview into an overlay. Low risk — the same widgets, one
extra reparent — but unproven, and it is the only place Tauri-specific
behaviour could still bite.
- ✅ **ABR — resolved. Finding 3's premise is false.** Finding 3 said mpv would
regress streaming quality because "the webview path already has real ABR via
hls.js". Three pieces of evidence in this repo suggested that is **not true of
the URLs we actually build**:
1. `get_video_stream_url` (`repository/online.rs`) requests a *single*
rendition — one `VideoBitrate`, one `MaxStreamingBitrate`, one `MaxHeight`.
Jellyfin transcodes to what it is asked for; it does not build a ladder.
2. The frontend contains **no level-handling code at all** — no `hls.levels`,
no `LEVEL_SWITCH`, no `currentLevel`. The `abrEwma*` options in
`VideoPlayer.svelte` are default tuning with nothing to act on. hls.js is
serving as an HLS *demuxer* (WebKitGTK cannot play HLS natively), not as an
adaptation engine.
3. That function's own comment describes a quality switch as **rebuilding the
URL** — "every path that re-opens a stream (quality switch, transcoded seek,
audio-track switch)". Manual selection by stream re-open is what you build
when there is no adaptation, and mpv can do the same thing.
**The decisive test has now been run** (2026-08-21, against the development
server, Jellyfin 10.11.5):
```
curl -s ".../Videos/<itemId>/master.m3u8?…&TranscodingProtocol=hls&…" \
| grep -c EXT-X-STREAM-INF
1
```
**One line.** The playlist carries a single `EXT-X-STREAM-INF` plus an
`EXT-X-IMAGE-STREAM-INF` trickplay entry, which is not a rendition. Jellyfin
builds the master playlist from the rendition the request asked for; it does
not publish a ladder. So **there is no ABR to lose, and this blocker is
closed** — hls.js is serving as an HLS demuxer, exactly as (2) above supposed,
and mpv gives up nothing by replacing it.
Recorded as DR-229 (Won't Do) rather than deleted, because it is a
measurement: a server that *does* publish a ladder would change the answer, and
the re-negotiation path is the hook that work would build on.
**The direct-play path now exists.** It did not when this spike was written —
every video play went through the HLS transcode endpoint. Backend-owned stream
selection (DR-225 … DR-230) built it: Rust negotiates direct play / direct
stream / transcode and hands every backend one `StreamSelection` carrying the
URL, the transport and the chosen rendition. **That is the contract this
implementation consumes** — mpv is a consumer of a decision already made, not a
place to re-derive it.
It also sizes the prize precisely. Measured over the same server, 40 items
through a real negotiation per profile:
| Profile | Direct play |
|---|---|
| Linux / WebKitGTK — `h264` only, 2ch | **7%** |
| Android / ExoPlayer — `h264,hevc,vp8,vp9,av1,mpeg4` + `ac3,eac3`, 6ch | **85%** |
**The 85% is a ceiling, not a shipped result** — it was measured with a
profile containing `ac3,eac3`, which the Android device later used for
verification does not support.
The library sampled is ~80% hevc. Linux sits at 7% **solely because the
WebKitGTK profile can only claim h264** — not because of anything about the
server or the negotiation. mpv decodes hevc, so widening the Linux device
profile once mpv renders the picture is what converts that 7% toward the
Android figure. That conversion is the actual product of this work; the
compositing proven above is the mechanism that permits it.
- 🔴 **One unexplained SIGSEGV.** A ~180s
run died in a *decoder* thread (libavcodec -> `av_log` -> libmpv's log handler
-> libc). No Tauri, wry, WebKitGTK, GTK or GL frame appears anywhere in the
stack, so the fault is on the mpv/ffmpeg side of the process rather than in the
compositing seam.
Three hypotheses were tested and **none reproduced it**:
| Hypothesis | Test | Result |
|---|---|---|
| `hwdec=auto-safe`'s Vulkan failures | 300s soak on `auto-safe` | Survived. Also based on a misreading — the failures are 2 per run at start-up, not per-frame. Dead. |
| Fullscreen transitions recreating the GL context under mpv's render context | 240s soak, ~120 automated transitions | Survived, no core dumped. |
| Continuous resize thrashing the GL framebuffer | 240s soak, ~2000 resizes | Survived, no core dumped. |
**The crash is therefore unexplained.** It was observed exactly once, in the
only session a human interacted with, and did not recur in ~13 minutes of
targeted stress across the three most plausible causes. It is recorded here
rather than dismissed precisely because nothing explains it: an intermittent
fault that nobody can reproduce is worse to inherit than a deterministic one,
not better.
The underlying concern stands regardless of which test eventually reproduces
it. A SIGSEGV in an unrelated thread is characteristic of memory corruption,
and this spike never calls `mpv_render_context_free` and never tears down on
`unrealize` — it has no defence against the GL context being recreated beneath
the render context. That is DR-184 on Android restated: a surface outliving its
player. An implementation must bind the two lifetimes together whether or not
this particular crash is ever explained.
**Therefore G5 is recorded green on appearance only**, and this crash is the
single largest piece of unfinished business in the spike. Do not read the green
gates above as "safe to build on" until it is explained or a long soak clears
it.
- Long-run stability, seeking, track switching, HDR, and multi-window were not
exercised at all.
## Out of scope
- Any change to the shipping Linux video path. `experimentalNativeVideo` in
`adapters/index.ts` is a **suppressor, never a promoter**; the spike must not
change that.
- Adaptive bitrate. See "The blocker a green spike does not clear".
- Windows and macOS — different mechanisms, and **Windows is the easier case, not
the endangered one**. See below.
- Android. Already shipped; it is the precedent, not the target.
- Crossfade, the libmpv2 migration, and the audio-parity work.
### Why Windows is unaffected, and cheaper
Nothing here can regress Windows. `use_html5_element` is already a per-platform
`cfg!` in `get_player_status` — Android native, everything else HTML5 — so
divergent video paths are the existing design rather than something this
introduces. Windows keeps `<video>` + hls.js whatever this spike returns.
The mechanism does not port: `default_vbox()`, `GtkOverlay` and `GtkGLArea` are
GTK3/WebKitGTK concepts. But the *question* is already answered more favourably
there. Both mpv plugins list Windows as **fully tested** and Linux as broken,
because WebView2 honours a transparent background — the "native surface beneath a
transparent webview" approach that fails on WebKitGTK is the one that works on
Windows. That asymmetry is why
[windows-native-audio-backend.md](windows-native-audio-backend.md) can call
Windows "the cleanest available win".
Windows' cost is packaging, not compositing: the build cross-compiles with MSVC +
`cargo-xwin`, so libmpv arrives as a bundled prebuilt DLL (the ⚠️ in finding 5's
comparison table). That cost is already committed for *audio*. Once the DLL ships
to replace `WebviewAudioBackend`, Windows video is largely a follow-on.
Sequencing, if native video is ever pursued on both:
1. [libmpv2-migration.md](libmpv2-migration.md) — prerequisite for either.
2. [windows-native-audio-backend.md](windows-native-audio-backend.md) — already
specced; lands the DLL and a real Windows backend.
3. Windows native video — cheap once 2 exists, and does not need this spike.
4. Linux native video — needs this spike, and runs independently of 13.
### Does this add a backend?
No — and the trajectory is convergence, not proliferation.
`create_player_backend` in `lib.rs` already selects between four
`PlayerBackend` impls by `cfg!`: `MpvBackend` (Linux), `ExoPlayerBackend`
(Android), `WebviewAudioBackend` (Windows and anything else), and `NullBackend`
as the graceful-init fallback. The HTML5 video path is not among them — it is a
frontend adapter reporting through `player_report_*`, not a `PlayerBackend`.
This spike adds none of these. `MpvBackend` already exists and already runs on
Linux; it merely sets `video = no` at construction. Giving it video widens an
existing backend rather than introducing an engine.
Following the sequence above, the count goes **down**: replacing
`WebviewAudioBackend` with mpv on Windows leaves two native engines — mpv
(Linux + Windows) and ExoPlayer (Android) — with native video riding on both.
Two is the floor, for a reason worth stating so nobody re-litigates it: Android
cannot drop ExoPlayer even if libmpv runs there, because the foreground service,
`MediaSessionCompat` and lockscreen control are built on it (finding 7 puts the
cost at that rewrite, not at the bindings). The HTML5 path does not go away
either — it is the transcode/ABR route and the fallback.
The trait surface converges too: `ExoPlayerBackend` already implements the
video-surface lifecycle for Android native compositing, so teaching `MpvBackend`
video follows a path already walked rather than opening a second one.
- Adopting `tauri-plugin-libmpv` or `tauri-plugin-mpv` as dependencies. Both
report Linux window embedding as not working and are small projects
(20 and ~70 commits); read them, do not depend on them.
## Acceptance criteria
The deliverable is a decision, not a feature.
- [ ] Each of G1G6 recorded green/red **with the observed mechanism**, not just
the verdict.
- [ ] X11 and Wayland results reported separately, each naming the compositor
and WebKitGTK version tested.
- [ ] The direct-play/transcode ABR hypothesis recorded as open, with whatever
the spike learned about it.
- [ ] `docs/specs/README.md` updated — this spec listed, and its row moved or
deleted per the result.
- [ ] The Linux claim in the `createAdapter` doc comment
([adapters/index.ts:12-13](../../src/lib/player/adapters/index.ts#L12-L13))
corrected either way: if red, cite this spike instead of asserting it; if
green, it is wrong and must be rewritten.
- [ ] On **red**: finding 2 of
[playback-backend-unification.md](playback-backend-unification.md) gains a
dated note naming the render-API method as also tested, and this file is
deleted. The verdict lives in the design-authority spec, not in a second
file that contradicts nothing.
- [ ] On **green**: an implementation spec exists, allocating ids from
**UR-077 / IR-033 / DR-216** (re-check `requirements.md` — the README's
"next free DR-215" is stale, DR-215 landed), and it must answer ABR before
being accepted.
- [ ] No spike code on `master`. If any lands, the standard gates apply:
`bun run check`, `bun run test`, `bun run check:boundary`, `cargo fmt`,
`cargo clippy`, `bun run test:rust`.
## Testing
No automated tests. A compositing result is a visual, per-session-backend
observation and cannot be asserted in `cargo test` or vitest — pretending
otherwise would produce a test that passes on a headless runner and tells us
nothing.
Capture a screenshot per gate. G4 specifically: an opaque HTML element over the
video area, photographed showing the video *behind* it.
If it goes green, the implementation spec inherits the testable surface the
Android work already established — `nativeVideoLayers.test.ts` asserts the
`app.css` selector list and the `data-native-video` contract, and both are
platform-agnostic.
## TRACES
None. No requirement-implementing code is produced. The implementation spec that
follows a green result allocates from DR-216 and tags there.
## Notes for the implementer
- **Read [playback-backend-unification.md](playback-backend-unification.md)
first, in full.** This spike disputes exactly one of its six findings, on one
platform, by one method it did not try. Everything else in it is still binding
— particularly finding 3.
- Test **Wayland first**. It is the gate most likely to be red and the one that
makes the rest moot.
- The frontend plumbing already exists from the Android work: `createAdapter`,
`NativePlayerAdapter`, `nativeVideo.ts`, `videoSurface.ts`, and the
`[data-native-video="active"]` rule. A green spike is far cheaper to implement
than it would have been a year ago — which is itself part of why the question
is worth re-asking.
- The Android record in
[05-platform-backends.md](../architecture/05-platform-backends.md#native-video-compositing-android)
lists six shipped defects from getting this right on one platform. Expect the
Linux equivalents (the surface outliving its player, the shell painting over
it, unpainted letterbox bars) rather than rediscovering them.
- A parallel Claude session may be active in this repo — `git diff` before
"repairing" unexpected changes.
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# Spec: MediaPlayer — one controller API, three interchangeable engines
**Status:** **Partially implemented.** DR-242 … DR-247 have shipped: the
contract, `FakePlayer` and the conformance suite, `MpvPlayer`, the standalone
runner, `LegacyPlayer`, the controller port, the capability-driven seek
strategy, and ExoPlayer conformance on a device. What is left is DR-248 (the
webview as an engine) and DR-249 (deleting `PlayerBackend` and the frontend
playback-state flags).
**Requirements:** UR-081 (new) → DR-242 … DR-249 (new); IR-034. Re-check
`requirements.md` before allocating — ids moved several times while this was
written.
**UX spec:** n/a — no user-visible change is intended. That is the point.
**Supersedes / revises:** absorbs `determine_video_seek_strategy`
(`player/seek.rs`, DR-238) into the engines. Revises the backend half of
[playback-backend-unification.md](playback-backend-unification.md).
**Destination on completion:**
[01-rust-backend.md](../architecture/01-rust-backend.md) — replaces the player
state-machine section; and
[05-platform-backends.md](../architecture/05-platform-backends.md) — the engines
become implementations of a stated contract rather than three separate designs.
## Summary
Replace the `PlayerBackend` trait with a `MediaPlayer` contract that expresses
**intent** ("present this item, starting here") rather than **device operations**
("load", then "seek"). MPV, ExoPlayer and the webview element implement it; a
`FakePlayer` implements it for tests; and one conformance suite runs against
every implementation so a backend is either correct or visibly failing.
No user-visible behaviour changes. What changes is that playback logic stops
being written three times in the command layer.
## Motivation
A day of debugging Linux native video produced four defects (DR-238 … DR-241).
Every one of them traces to the same missing seam, not to mpv:
| Defect | What it looked like | What it was |
|---|---|---|
| DR-241 | "Resume is broken", "I cannot skip" | `loadfile` is async, so a seek issued straight after a load fails and was discarded. The trait has no way to say *open at a position*, so every caller does load-then-seek and each races independently. |
| DR-238 | Transcoded seeks silently did nothing | `use_html5` was doing double duty as "who renders" **and** "how do I seek", decided in the command layer by a truth table. |
| DR-239 | Play/pause control never moved | `PropertyChange { name: "pause" }` was handled but never observed. Nothing in the contract required an engine to report its own state. |
| DR-240 | Fullscreen left the picture at window size | `requestFullscreen()` moves the document; whoever owns the pixels has to be told separately. |
The shape is consistent: **the same intent implemented in several places, each
with its own timing and its own idea of the rules.** Resume worked through the
adapter (which seeks after `File loaded`) and failed through the command (which
seeks immediately). Two callers, one intent, two behaviours.
Supporting evidence for the diagnosis:
- `commands/player/mod.rs` is **3,561 lines** and is where "stop → rebuild URL →
update queue → load → seek" lives. That is playback orchestration in the IPC
layer.
- `player_play_item` needed a `#[cfg(not(target_os = "linux"))]` guard, i.e. a
platform decision in a command handler.
- The frontend carries `didStartNativePlayback`, `didStopBackendEarly`,
`hasPerformedInitialSeek`, `lastAppliedInitialPosition` — playback state in the
UI, which contradicts the one-directional rule in CLAUDE.md.
### Why an abstraction, and not more fixes
Each defect above was individually cheap to patch, and patching them is what
produced a regression: routing transcoded seeks to a reload path turned "seek
does nothing" into "seek jumps to zero", because the reload path's own seek was
broken in the same way. **Symptom fixes in this area compound.**
## The background-audio handoff is an unconfirmed state swap
Diagnosed on a device, 2026-08-23, and the likeliest explanation for "audio
keeps playing after I leave the player" — the report this whole line of work
started from.
`enter_background_audio` and `exit_background_audio` in `PlayerController` are
pure bookkeeping: they flip a boolean and set or clear a base offset. Neither
confirms that the audio stream actually opened, nor that the webview `<video>`
actually came back. `exit_background_audio`'s own doc comment says the element
"becomes the player again once it reloads" — a future event nothing waits for,
while the flag declares the swap complete the moment it is called.
The sequence that exposes it:
1. Background audio is enabled.
2. The app is backgrounded — `enter_background_audio(pos)`, audio stream opens.
3. The app is foregrounded — `exit_background_audio()` sets the flag back, so
the controller believes the video element owns playback again.
4. The player is exited *before the element has reloaded*. The stop is aimed at
an element that does not exist yet; the audio stream is still running.
5. The mini player sees a live audio session and adopts it — which is why the
symptom is a **movie appearing as an audio track**, and why it is
intermittent rather than reliable.
Duration reporting `0.0` on Android widens the window: the reload is slower and
less certain to land at the right position.
**This is the same defect class as DR-238 … DR-241: state asserted rather than
confirmed.** It is what `Phase::Opening` and `MpvPlayer`'s open generation
exist for — a handoff *is* an open in flight, and a `close` during one has to
cancel it rather than race it. The handoff is not modelled as an open at all
today; it is two booleans and an offset.
The fix therefore belongs with this contract rather than beside it: route the
handoff through `open`/`close` so the swap has a phase, and so leaving the
player during one cancels the thing that is actually playing instead of the
thing the controller believes is playing. `close_during_open_never_plays`
already states the required behaviour and passes on all four engines — the gap
is that the handoff never reaches an engine as an open.
## Layer assignment
| Logic / responsibility | Layer | Why it belongs there |
|---|---|---|
| Presenting an item at a position, in one operation | **Engine** (`MediaPlayer`) | Only the engine knows when its pipeline can accept a position. Expressing it as caller-sequenced load-then-seek exports a race the engine is the only one able to close. |
| Whether *this* stream can be seeked in place, or must be re-opened | **Engine** | A property of the engine × transport pair: hls.js seeks a VOD playlist, mpv's HLS demuxer cannot make Jellyfin transcode from a new offset. Today this is a truth table in a command handler that has to guess for engines it does not own. |
| Reporting position, phase, duration, active tracks | **Engine** | The player is the authoritative source of playback state (CLAUDE.md). An engine that does not report is not implementing the contract — DR-239 was exactly this. |
| Choosing *which* stream to open (direct play vs transcode, ceiling, transport) | **Rust, above the engine** | Domain: depends on Jellyfin's `PlaybackInfo`, codec support, quality ceiling. See [backend-owned-stream-selection.md](backend-owned-stream-selection.md). The engine is handed a `StreamSelection`; it never negotiates one. |
| Queue, autoplay, session, playback reporting | **`PlayerController`** | Policy across items. Unchanged — but it talks to one contract instead of branching per platform. |
| Which engine this platform uses | **Rust, at construction** | Already correct today; stays a single `cfg` at the composition root rather than `cfg`s scattered through command handlers. |
| Rendering surfaces, controls, fullscreen chrome | **Frontend / platform** | Presentation. The engine reports *what* is playing; it does not own the window. |
Borderline row and its tie-breaker: "should a transcoded seek re-open the
stream?" reads like domain policy. It is **engine** capability — the *decision*
is "seek to T", and how to achieve it is the engine's business. If it were
policy, every new engine would require editing a shared truth table, which is
precisely the coupling DR-238 came from.
## Design
### The contract
```rust
/// Anything that can present media: MpvPlayer, ExoPlayer, WebviewPlayer, FakePlayer.
pub trait MediaPlayer: Send {
/// Present `req.selection`, beginning at `req.start`.
///
/// One operation, deliberately. `open` is where a start position is
/// *expressible*, so no caller has to sequence load-then-seek and no caller
/// can race the engine's own load. An engine that cannot start at an offset
/// natively must absorb that internally (defer until loaded, or re-open) —
/// it is the only layer that knows when it is able to.
fn open(&mut self, req: OpenRequest) -> Result<(), PlayerError>;
fn play(&mut self) -> Result<(), PlayerError>;
fn pause(&mut self) -> Result<(), PlayerError>;
/// Stop and release the current item. Must be idempotent, and must leave the
/// engine producing no audio — DR-2xx exists because "stopped" and "silent"
/// were not the same thing.
fn close(&mut self) -> Result<(), PlayerError>;
/// Seek to an absolute position on the item's timeline.
///
/// The engine decides in-place vs re-open. Callers never choose.
fn seek(&mut self, to: Duration) -> Result<(), PlayerError>;
fn set_volume(&mut self, volume: Volume) -> Result<(), PlayerError>;
fn set_rate(&mut self, rate: f64) -> Result<(), PlayerError>;
fn select_audio_track(&mut self, index: Option<i32>) -> Result<(), PlayerError>;
fn select_subtitle_track(&mut self, index: Option<i32>) -> Result<(), PlayerError>;
/// One coherent read of everything the UI consumes.
fn snapshot(&self) -> PlaybackSnapshot;
/// Engine capabilities, so callers can adapt without naming engines.
fn capabilities(&self) -> Capabilities;
}
```
```rust
pub struct OpenRequest {
pub media: MediaItem,
pub selection: StreamSelection, // url + transport + playback kind
pub start: Duration, // Duration::ZERO for "from the beginning"
pub audio_track: Option<i32>,
pub subtitle_track: Option<i32>,
pub autoplay: bool,
}
pub struct PlaybackSnapshot {
pub phase: Phase,
pub position: Duration,
pub duration: Option<Duration>,
pub seekable: bool,
pub volume: Volume,
pub rate: f64,
pub audio_track: Option<i32>,
pub subtitle_track: Option<i32>,
}
/// `Opening` is the state today's code cannot express, and the direct cause of
/// DR-241: a seek arriving with nothing loaded had no phase to be rejected or
/// queued against, so it was simply lost.
pub enum Phase { Idle, Opening, Ready, Playing, Paused, Ended, Failed(String) }
```
Engines emit `PlayerEvent` for phase, position, track and error changes. Emitting
is part of the contract, and the conformance suite asserts it — an engine that
stays silent fails, which is what would have caught DR-239 the day it landed.
### What this deletes
- `determine_video_seek_strategy` and `VideoSeekStrategy` — replaced by
`seek()` + `capabilities()`. The command layer stops deciding how engines seek.
- The reload orchestration in `player_seek_video` — moves inside the engines that
need it.
- `#[cfg(target_os = "linux")]` branches in command handlers.
- Frontend playback-state flags, which become reads of `snapshot()`.
### IPC
No new commands. Existing ones keep their names and shapes; they become thin
delegations. `PlayerStatus` gains nothing the frontend does not already receive.
Regenerate `bindings.ts` only if `PlaybackSnapshot` is exposed directly — prefer
mapping it onto the existing `PlayerStatus` so this stays invisible at the wire.
## Testing
This is the half that makes the abstraction worth having, and it is the reason to
do it rather than keep patching.
### 1. A conformance suite, run against every engine
One set of tests, parameterised over implementations. Any `MediaPlayer` must pass
it; a new engine is "done" when it does.
```
conformance::run(&mut engine, fixture) covering:
open(start = ZERO) -> phase Ready|Playing, position ~0
open(start = 10min) -> position within tolerance of 10min, NEVER 0 [DR-241]
seek while Opening -> honoured once Ready, not discarded [DR-241]
seek on a transcoded stream -> position lands, by whatever means [DR-238]
pause / play -> phase changes AND an event is emitted [DR-239]
close -> phase Idle, silent, idempotent
close during Opening -> no playback ever starts [audio-on-exit]
volume / rate / track select -> reflected in snapshot()
```
The `open(start = 10min)` and `seek while Opening` cases are the ones that fail
on today's code. They are written first, and they are the acceptance criterion.
### 2. `FakePlayer`
A deterministic in-memory implementation with a controllable clock. Lets
`PlayerController`, autoplay, queue, sleep-timer and session logic be tested with
no mpv, no device, no network — most of which is currently only reachable through
a real engine.
### 3. Per-engine runs
| Engine | Where | Note |
|---|---|---|
| `FakePlayer` | `cargo test` | Always. |
| `MpvPlayer` | `cargo test`, Linux | libmpv is already in the builder image (the Linux build links it), so **no CI toolchain install** — see CLAUDE.md. Needs a tiny local fixture file; generate it in-test rather than committing media. |
| `ExoPlayer` | instrumented, on device | Not in the standard CI job. Run via `scripts/` on a connected device; record results in the PR. |
| `WebviewPlayer` | vitest | Against a stubbed element, as `html5Adapter` is tested today. |
An engine that cannot run in CI still has the same suite; it is just run by hand.
That is the point of writing it once.
## Migration
Strangler, not a rewrite. Each step ships independently and leaves the app working.
1. **DR-242** Define `MediaPlayer`, `OpenRequest`, `PlaybackSnapshot`, `Phase`,
`Capabilities`. No implementations. Compiles alongside `PlayerBackend`.
2. **DR-243** `FakePlayer` + the conformance suite. The suite fails against
nothing yet — it is the specification.
3. **DR-244** `MpvPlayer` implementing `MediaPlayer`, wrapping today's
`MpvBackend` internals. Make conformance pass, including `open(start)`.
4. **DR-245** `PlayerController` talks to `MediaPlayer`. `PlayerBackend` retained
behind an adapter so the other engines keep working.
5. **DR-246** Move seek strategy and reload orchestration out of
`commands/player/mod.rs` into the engines; delete `seek.rs`'s truth table.
**Shipped with a deviation.** The engine cannot own this outright:
re-negotiating a stream needs the repository, which sits *above* the engine.
So the engine *declares* `seeks_transcoded_in_place` and the caller acts on
it. That removes the defect — nobody guesses on another component's behalf,
and adding an engine no longer means editing a shared table — without
pretending an engine can reach upward. `determine_video_seek_strategy`
survives as a correctly-typed decision over declared abilities rather than
being deleted; the defect was its *input*, not its existence.
6. **DR-247** `ExoPlayerPlayer`; conformance on device.
7. **DR-248** `WebviewPlayer`; retire the adapter shim.
8. **DR-249** Delete `PlayerBackend` and the frontend playback-state flags.
Steps 13 are pure addition and risk nothing. Step 5 is where today's defect
classes actually die.
## Out of scope
- Stream selection (which URL, which quality) — that is
[backend-owned-stream-selection.md](backend-owned-stream-selection.md), and
this spec consumes its `StreamSelection` rather than duplicating it.
- Rendering surfaces and compositing.
- Any user-visible behaviour change. If one appears, it is a bug in the migration.
- Replacing hls.js or changing the transcode path.
## Acceptance criteria
- [ ] The conformance suite exists and `open(start = 10min)` fails against the
pre-migration mpv path — proving it reproduces DR-241 — then passes.
- [ ] `FakePlayer` lets at least one controller-level test run with no engine.
- [ ] `determine_video_seek_strategy` is deleted, not merely bypassed.
- [ ] No `cfg(target_os = ...)` remains in `commands/player/`.
- [ ] `bun run check`, `bun run test`, `bun run format:check`, `bun run lint` pass.
- [ ] `cargo fmt`, `cargo clippy -D warnings`, `bun run test:rust` pass.
- [ ] `bun run check:boundary` passes.
- [ ] `// TRACES:` on new code; `bun run traces:validate` passes; coverage stays
at or above the CI ratchet.
- [ ] Manual: resume, skip on a transcoded item, pause/play, and exit-while-playing
verified on Linux **and** Android before `PlayerBackend` is deleted.
## Notes for the implementer
- **Write the conformance suite before the second engine**, or it will encode
whatever the first engine happens to do.
- `close()` must mean *silent*. The bug that motivated this spec had `stop` being
called, reported, and audible afterwards.
- Do not let `Capabilities` grow into engine sniffing. If a caller branches on
the engine's identity, the contract is missing something — add it there.
- A parallel Claude session may be active in this repo — `git diff` before
"repairing" unexpected changes.
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# Spec: Playback backend unification — findings and strategy
**Status:** Accepted (analysis; no code changes)
**Requirements:** IR-004, UR-031, UR-032, UR-033 — revises the "Platform Playback Backend Parity" issue in requirements.md
**UX spec:** n/a
**Supersedes / revises:** informed the Android native-video and audio-parity
work (both since shipped — see
[05-platform-backends.md](../architecture/05-platform-backends.md)) and
[windows-native-audio-backend.md](windows-native-audio-backend.md), still open
## Summary
This spec records the outcome of an investigation into unifying JellyTau's
playback backends (Linux/MPV, Android/ExoPlayer, Windows/webview) onto a single
engine with hardware acceleration everywhere. **The conclusion is that video
cannot be unified onto a native engine, and should not be attempted.** Audio
*can* be, and that is where the remaining specs direct effort.
No code changes follow from this spec directly. It exists so the decision is
written down with its evidence, and so a future session does not re-run the same
investigation.
## Motivation
The requirements doc carries a "Platform Playback Backend Parity" issue noting
that audio settings work on Linux but not Android, and proposing eventual
convergence. The natural next question — "should we just run one engine
everywhere?" — needed answering before spending effort on per-backend patches.
The investigation also surfaced that several statements in requirements.md and in
code comments are factually wrong. Those corrections are part of the deliverable.
## Findings
### 1. The current architecture is not what the docs describe
| Platform | Audio | Video |
|----------|-------|-------|
| Linux | MPV (native, **audio-only**) | webview `<video>` + hls.js |
| Android | ExoPlayer (native) | **webview `<video>` + hls.js** |
| Windows | webview `<audio>` | webview `<video>` + hls.js |
Two surprises:
- **MPV never decodes video.** `mpv_backend.rs` sets `video = no` and
`audio-display = no` at construction. Linux video has always been the webview.
Correspondingly, `player_play_item` deliberately does *not* load into MPV on
Linux (it calls `set_current_item`, which only updates the queue).
- **Android video is also the webview.** `createAdapter()` in
`src/lib/player/adapters/index.ts` hardcodes `const effectiveKind = "html5"`
and does `void backendKind`, discarding the `use_html5_element` signal that
`get_player_status` computes in Rust. `NativePlayerAdapter` is dead code, and
ExoPlayer's `SurfaceView` path in `JellyTauPlayer.kt` is unreachable.
So video is *already* unified — on HTML5, everywhere, by accident of that
hardcode — and on the path without hardware decoding on Android.
### 2. Native video cannot be composited with a Tauri webview
This is the load-bearing finding. It is **not** an mpv limitation; it defeats
every candidate engine identically:
- **mpv**: `tauri-plugin-libmpv`'s own platform table reads Linux ⚠️
*"Experimental. Window embedding is not working."*
- **GStreamer** (wry discussion #284, 2024): *"Gstreamer was rendering above the
surface and covering all html elements."*
- **libVLC** (tauri discussion #6343, 2024): *"I had to render the webview in a
child window though because vlc kept rendering on top of it."*
Root cause, from Tauri maintainer amrbashir (tauri#9220, 2024-03-30):
> "we are limited to using Webkit2GTK on Linux and that requires a GTK window.
> While possible to add a GTK widget as a child X11 window inside raw X11 window,
> this is however a bit hacky and **it is not possible on Wayland at all**."
WebKitGTK, WebView2, and Android WebView each draw into their own compositor
surface. A native video surface is either entirely above or entirely below the
webview; it cannot interleave with HTML. Every working example in the ecosystem
is the same hack — a separate child window position-synced to a
`getBoundingClientRect()` div — which breaks on resize, scroll, and any UI drawn
over the video. For JellyTau that means the controls, subtitle overlay, and
mini-player.
The most recent comment on tauri#6343 (2026-05-23) confirms it is still unsolved:
> "I'm faking it and the window is not truly embedded, basically when the parent
> moves or resizes I reset the position and size of the libmpv window to align it
> with an HTML div."
**The principle to carry forward: audio can unify on a native engine; video
cannot, because video needs a surface and the webview owns the surface.**
> **Re-opened on Linux (2026-08-21).** This finding's general form has since been
> falsified on Android — native video now composites behind a transparent Tauri
> WebView and ships on by default (see
> [05-platform-backends.md](../architecture/05-platform-backends.md#native-video-compositing-android)).
> The evidence above is also entirely about *foreign-window embedding*; mpv's
> render API, drawing into a GL context we own inside Tauri's own GTK tree, was
> never tested. [linux-native-video-spike.md](linux-native-video-spike.md) tests
> that one claim on Linux. **Findings 3-6 below are untouched by it** - in
> particular finding 3, which is an independent disqualifier a green spike would
> not clear.
### 3. mpv would regress streaming quality
mpv has **no adaptive bitrate**. It delegates HLS to FFmpeg's demuxer, which
selects one variant at open time and never adapts; mpv#3548 (2016) requested ABR
and it never landed. `--hls-bitrate` is a static picker defaulting to `max`.
The webview path already has real ABR via hls.js. Moving video to mpv would be a
**downgrade** on every platform — no graceful degradation on weak networks, and
quality changes requiring teardown and reload.
> **Premise in doubt (2026-08-21).** "The webview path already has real ABR"
> was not verified against the URLs this app actually builds.
> `get_video_stream_url` requests a *single* rendition (one `VideoBitrate`, one
> `MaxHeight`), the frontend has **no** level-handling code (`hls.levels`,
> `LEVEL_SWITCH`, `currentLevel` appear nowhere), and this repo implements a
> quality switch by *re-opening the stream* — all of which point to a
> single-variant playlist, i.e. no ABR to lose. The decisive test is counting
> `#EXT-X-STREAM-INF` lines in a real `master.m3u8`; it needs a live server and
> has not been run. See
> [linux-native-video-spike.md](linux-native-video-spike.md).
### 4. Crossfade is architecturally blocked on mpv
mpv's audio chain is single-stream. FFmpeg's `acrossfade` is an `N→A` filter
requiring two input streams, so there is no second input to feed it. Real
crossfade needs **two libmpv instances** with manually ramped volumes. Upstream
maintainer response (mpv#4512, closed three minutes after opening):
> "No. I also find crossfading stupid and complex, so the likeliness of that
> happening is low."
GStreamer *could* do it via `audiomixer`. mpv cannot, at any reasonable cost.
### 5. Engine comparison summary
| Criterion | mpv | GStreamer | libVLC |
|-----------|-----|-----------|--------|
| Webview compositing | ❌ Linux broken | ❌ same wall | ❌ same wall |
| Adaptive bitrate HLS | ❌ none | ✅ adaptivedemux2 | ✅ adaptive module |
| Rust bindings | ⚠️ `libmpv2` active; our pin is dead | ✅ `gstreamer-rs` excellent | ❌ `vlc-rs` abandoned (2018) |
| Windows cross-MSVC | ⚠️ prebuilt DLL | ❌ pkg-config vs cargo-xwin | ❌ no better |
| Android packaging | ✅ Maven AAR (used by Findroid) | ⚠️ Cerbero/NDK, painful | ✅ mature AAR |
| ASS/SSA subtitles | ✅ libass built in | ✅ libass | ✅ libass |
| Crossfade | ❌ impossible | ✅ `audiomixer` | ⚠️ unclear |
Every candidate fails the first row, which is the disqualifying one.
### 6. Two further options ruled out
**Webview `<audio>`/`<video>` everywhere** (i.e. delete the native audio backends
too) is dead on Android: `navigator.mediaSession` is *deliberately compiled out*
of Android WebView (Chromium CL 2613133003), so lockscreen/media-notification
control would be impossible. Chromium has also never shipped `audioTracks`. It
remains fine for Windows *video*, which is what we already do.
**FFmpeg-direct / Rust-native** (`ffmpeg-next`, `rsmpeg`, Symphonia) is not
close: the safe bindings do not expose hardware decode at all, `ffmpeg-next` is
self-declared maintenance-only, and Symphonia lacks HE-AAC and gapless AAC. This
is a multi-person-year path to reach parity with what we already have.
### 7. If libmpv is ever revisited on Android
Recorded so the next investigation starts from evidence rather than repeating the
search. The `dev.jdtech.mpv:libmpv` AAR — maintained by Findroid's author, i.e.
another Jellyfin Android client — was inspected directly:
- `libmpv.so` exports the full 54-function `mpv_*` C API with **zero `Java_`
symbols**; JNI is a separate optional ~19 KB `libplayer.so`. So it is drivable
from Rust without a Java shim. (This is precisely what disqualifies libVLC,
whose Android video path hard-requires a Java `AWindow` jobject.)
- ~23 MB/ABI, versus libVLC's ~46 MB/ABI.
- 🔴 **The published AAR is built `--enable-gpl --enable-version3` — it is
GPLv3**, not LGPL. Fine for us (see [libmpv2-migration.md](libmpv2-migration.md)),
but it would be a hard constraint for anyone shipping closed source, and an
LGPL rebuild would be your own build to own.
- Top unverified risk if anyone tries this: whether `libmpv2-sys` can
cross-compile for `aarch64-linux-android` against that prebuilt `.so`. No
working example of `libmpv2` on Android was found.
None of this changes the verdict — the cost is the MediaSession/foreground-service
rewrite, not the bindings.
## Decision
1. **Do not unify video onto a native engine.** Video stays in the webview with
hls.js on all platforms. This is not a compromise — it is the configuration
that falls out of the compositing constraint, and it is the only one that
gives us ABR for free.
2. **Android native video is worth a bounded spike anyway** — not for
unification, but because ExoPlayer's `SurfaceView` path already exists and
would restore hardware decode plus ASS/SSA subtitles. See
[05-platform-backends.md](../architecture/05-platform-backends.md#native-video-compositing-android).
3. **Audio parity is the real gap** and is achievable without touching any of the
above. See [05-platform-backends.md](../architecture/05-platform-backends.md)
and [windows-native-audio-backend.md](windows-native-audio-backend.md).
4. **Migrate the dead libmpv pin** regardless of any of this. See
[libmpv2-migration.md](libmpv2-migration.md).
## Corrections to existing docs
These are factual errors found during the investigation. Fixing them is in scope
for this spec.
| Location | Says | Actually |
|----------|------|----------|
| `requirements.md` UR-031 (line ~44) | "Done (Linux only)" | Not implemented on any platform. |
| `requirements.md` DR-034 (line ~196) | "Done (Linux only)" | Not implemented anywhere — `mpv_backend.rs` has a bare `// TODO: Implement crossfade via MPV audio filters if needed`. Architecturally blocked on mpv (finding 4). |
| `requirements.md` parity matrix | Crossfade ✅ Linux / ❌ Android | ❌ / ❌ |
| `requirements.md` parity matrix | (no EQ row) | EQ is also Linux-only — `build_af_filter`/`eq_filter_entries` exist only in `mpv_backend.rs`. Same root cause, same fix. |
| `nativeAdapter.ts:11-14` | Native Android video "blocked upstream by tauri#10152" | tauri#10152 is a stale *feature request*, dead since 2024-07-01. The capability shipped in tauri commit `27d01834` (2024-09-02). Not a blocker. |
## Layer assignment
No new logic. The one boundary observation worth recording:
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| Which video backend a platform uses (`use_html5_element`) | Rust | Already correctly computed in `get_player_status`. The frontend currently *discards* it — that is the bug, not the design. Restoring it means the frontend consumes a backend decision rather than making its own. |
## Out of scope
- Any code change. This spec is analysis; the sibling specs carry the work.
- iOS/macOS. Not current targets.
- Replacing hls.js.
## Acceptance criteria
- [ ] `requirements.md` DR-034 status corrected; parity matrix updated (crossfade ❌/❌, EQ row added).
- [ ] Stale tauri#10152 comment in `nativeAdapter.ts` corrected.
- [ ] The four sibling specs exist and are linked from here.
## Testing
n/a — documentation only.
## TRACES
No new code. Requirement text changes only; DR-034's status line is the one
substantive edit.
## Notes for the implementer
- The evidence above was gathered in July 2026. The compositing constraint has
been stable since 2021 (wry#284) and is maintainer-declared unfixable, so it is
unlikely to change soon — but if someone revisits this, tauri#6343 and wry#284
are the threads to re-read first.
- A parallel Claude session may be active in this repo — `git diff` before
"repairing" unexpected changes.
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# Spec: Enforce the unified player boundary
**Status:** Proposed — not started. The count below has not improved: ~60
`commands.player*` call sites still live outside `src/lib/player/`, and no lint
rule enforces the boundary. This remains the one stated design principle with no
automated check.
**Requirements:** ⚠️ the suggested id **DR-095 has since been allocated** to seek
clamping — allocate a fresh id (DR-215 or later) on implementation. Relates to
UR-005 and the unified-player-boundary
principle in CLAUDE.md and [02-svelte-frontend.md](../architecture/02-svelte-frontend.md)
**UX spec:** n/a — refactor, no user-visible change.
**Supersedes / revises:** n/a
## Summary
The stated principle is that UI controls playback **only** through
`playerController` ([src/lib/player/index.ts](../../src/lib/player/index.ts)),
never by calling `commands.player*` directly. There are **52 direct call sites
outside** that facade. This spec routes the genuine playback-control calls
through the facade, narrows the principle's wording so it stops forbidding
things it never meant to forbid, and adds the lint rule that keeps it true —
because this rule is the one design principle in the audit with **no automated
check at all**, and it is also the one that drifted furthest.
## Motivation
Direct `commands.player*` usage outside `src/lib/player/`, by file:
| File | Sites |
|---|---|
| [queue.ts](../../src/lib/stores/queue.ts) | 10 |
| [player/[id]/+page.svelte](../../src/routes/player/[id]/+page.svelte) | 9 |
| [VideoPlayer.svelte](../../src/lib/components/player/VideoPlayer.svelte) | 8 |
| [settings/+page.svelte](../../src/routes/settings/+page.svelte) | 5 |
| [sleepTimer.ts](../../src/lib/stores/sleepTimer.ts) / [auth.ts](../../src/lib/stores/auth.ts) / [autoplay.ts](../../src/lib/api/autoplay.ts) | 4 each |
| [preload.ts](../../src/lib/services/preload.ts) | 3 |
| [library/[id]](../../src/routes/library/[id]/+page.svelte), [playerEvents.ts](../../src/lib/services/playerEvents.ts), [playbackMode.ts](../../src/lib/stores/playbackMode.ts) | 12 each |
These are **not** equivalent violations, and treating them as one number is why
the rule has been easy to ignore. Three distinct groups:
**(a) Genuine violations — playback control with a facade method that already
exists.** `playerStop` ×6, `playerPlayTracks` ×4, `playerSeek` ×2,
`playerPlayAlbumTrack` ×2, `playerNext`, `playerPrevious`, `playerSkipTo`,
`playerToggleShuffle`, `playerCycleRepeat`, `playerRemoveFromQueue`,
`playerMoveInQueue`, `playerAddTrackById`, `playerAddTracksByIds`,
`playerSetSubtitleTrack`, `playerPlayItem`. The facade exposes `stop()`,
`seek()`, `next()`, `previous()`, `skipTo()`, `toggleShuffle()`,
`cycleRepeat()`, `removeFromQueue()`, `moveInQueue()`, `addTrackById()`,
`addTracksByIds()`, `setSubtitleTrack()`, `playTracks()`, `playAlbumTrack()`,
`playItem()` — every one of these has a facade equivalent that is simply not
being called. `queue.ts` is the starkest case: it imports `commands` directly
and re-implements ten methods the facade already provides.
**(b) Playback control with no facade method.** `playerPlayQueue`,
`playerGetQueue`, `playerGetStatus`, `playerEnterBackgroundAudio`,
`playerExitBackgroundAudio`, `playerSetSleepTimer`, `playerCancelSleepTimer`,
`playerPlayNextEpisode`, `playerCancelAutoplayCountdown`. In scope for the
principle, but currently *impossible* to comply with — the facade has no surface
for them. A rule that cannot be followed is not being broken so much as it is
unfinished.
**(c) Not playback control.** `playerConfigureJellyfin` ×3,
`playerDisableJellyfin`, `playerGet/SetAudioSettings`,
`playerGet/SetVideoSettings`, `playerGetEqPresets`,
`playerGet/SetAutoplaySettings`, `playerGet/SetCacheConfig`,
`playerPreloadUpcoming`. These are configuration and lifecycle calls that happen
to live under the `player_` command prefix. The principle is about *who is
authoritative for playback state* — settings CRUD isn't that.
The audit's read: the rule as written is violated 52 times, which makes real
drift indistinguishable from acceptable usage, and that ambiguity is what lets
group (a) persist. Note also that the principle **is** well-honoured where it
matters most — the read side is clean, with UI reading state exclusively from
the facade's re-exported stores. The write side is what drifted.
## Layer assignment
Frontend-internal refactor. No domain logic moves and nothing new crosses IPC —
the same Rust commands are called, through one module instead of many.
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| Playback command dispatch (adapter routing: native vs HTML5) | Frontend — `src/lib/player/` **only** | Presentation-layer plumbing, but must be centralised: the facade picks between the native backend and the HTML5 `<video>` adapter. A caller bypassing it silently skips that routing. |
| Playback *authority* (position, pause, rate, track changes) | **Rust / the player** | Unchanged. The player is authoritative; UI is a consumer. This spec does not touch that direction. |
| Queue mutation commands | Frontend facade → Rust | Rust owns queue state; the facade is the single call path to it. |
| Player settings CRUD (EQ, video, autoplay, cache) | Frontend, **outside** the facade | Configuration, not playback control — read/written on a settings page with no adapter routing. Explicitly carved out below. |
| Backend→frontend event handling | `playerEvents.ts` | Already correct. It is the facade's own plumbing, not a bypassing consumer. |
No Jellyfin taxonomy is involved, so no boundary-leak risk.
## Design
### 1. Narrow the principle to what it actually means
Amend CLAUDE.md and [02-svelte-frontend.md](../architecture/02-svelte-frontend.md):
> **Unified player boundary.** UI controls **playback** — transport, queue
> mutation, track selection, playback initiation — *only* through
> `playerController`. Player **configuration** commands (`player_*_settings`,
> `player_configure_jellyfin`, `player_*_cache_config`, `player_preload_upcoming`)
> are ordinary IPC and may be called directly from settings surfaces.
This is a clarification, not a relaxation: it makes group (c) explicitly fine so
that a violation count means something. A rule with 52 nominal violations, most
of them acceptable, provides no signal.
### 2. Fill the facade gaps (group b)
Add to `playerController`, each a thin pass-through preserving current
behaviour:
```ts
playQueue, getQueue, getStatus,
enterBackgroundAudio, exitBackgroundAudio,
setSleepTimer, cancelSleepTimer,
playNextEpisode, cancelAutoplayCountdown,
```
Do this **first** — group (a) cannot be fully migrated while callers still need
a direct import for a neighbouring call, and a file that imports `commands` for
one reason will keep using it for others.
### 3. Migrate group (a)
Mechanical: replace `commands.playerX(...)` with `playerController.x(...)`.
Highest-value first: `queue.ts` (10 sites, all direct facade equivalents), then
`player/[id]/+page.svelte`, `VideoPlayer.svelte`, `sleepTimer.ts`,
`playbackMode.ts`, `library/[id]/+page.svelte`.
Two sites need care rather than substitution:
- **`playerEvents.ts`** (`playerOnPlaybackEnded`, `playerStop` in the error
path). This module *is* the facade's event plumbing — the counterpart to
`index.ts`, inside the boundary conceptually though not by directory. Treat
`src/lib/services/playerEvents.ts` as **inside** the boundary and exempt it,
rather than making it call the facade that calls back into it. Record this in
the lint config with the reason.
- **`VideoPlayer.svelte`** — registers its own adapter via `setActiveAdapter`.
Its `playerStop`/`playerPlayItem` calls interact with adapter lifecycle, and
CLAUDE.md's gotcha ("no lifecycle calls after an `await` in `onMount`") applies.
Migrate this file **last and on its own**, so an Android seek regression is
bisectable to one commit.
### 4. Add the lint rule (the part that makes it stick)
The audit's finding was that principles with working checks held up and
principles without them drifted. This principle has no check. Add
`scripts/check-player-boundary.sh`, wired as `bun run check:player-boundary` and
into `test-all.sh`:
```sh
# Playback-control commands that MUST go through the facade.
CONTROL='player(Play|Pause|Toggle|Stop|Seek|Next|Previous|SkipTo|ToggleShuffle|CycleRepeat|RemoveFromQueue|MoveInQueue|SetVolume|ToggleMute|SetSubtitleTrack|SeekVideo|SwitchAudioTrack|PlayTracks|PlayAlbumTrack|PlayItem|PlayQueue|AddTrackById|AddTracksByIds|GetQueue|GetStatus|EnterBackgroundAudio|ExitBackgroundAudio|SetSleepTimer|CancelSleepTimer|PlayNextEpisode|CancelAutoplayCountdown|OnPlaybackEnded)'
# Inside the boundary: the facade and its event plumbing.
EXEMPT='^src/lib/player/|^src/lib/services/playerEvents\.ts$'
```
Flag `commands.$CONTROL` in non-test `src/` files outside `EXEMPT`. Config
commands are deliberately absent from the list, matching §1 — so the check
encodes the narrowed rule rather than the aspirational one.
An ESLint `no-restricted-syntax` rule would give better editor feedback, but the
project has no ESLint config; a shell check matches the existing
`check:boundary` precedent and adds no dependency.
## Out of scope
- Changing playback *behaviour* — pure refactor.
- The one-directional state principle (audited clean; UI reads from facade
stores only).
- Moving settings CRUD behind the facade (§1 explicitly carves it out).
- Introducing ESLint.
- Refactoring `VideoPlayer.svelte`'s 2079 lines generally, beyond its facade
call sites.
- The `commands.player*` calls **inside** `src/lib/player/` — that is the
facade doing its job.
## Acceptance criteria
- [ ] `playerController` exposes the group-(b) methods listed in §2.
- [ ] `grep -rn "commands\.player" src/ --include='*.ts' --include='*.svelte' | grep -v '^src/lib/player/' | grep -v 'playerEvents\.ts' | grep -v '\.test\.' | grep -v bindings.ts`
returns **only** configuration commands per §1 — no transport, queue, or
playback-initiation call.
- [ ] `queue.ts` no longer imports `commands` from bindings.
- [ ] `bun run check:player-boundary` exists, is wired into `test-all.sh`, and
passes.
- [ ] The check **fails** when a `commands.playerStop()` is added to a non-exempt
file — verify explicitly, as with the other gates in this batch.
- [ ] The check does **not** fail on `commands.playerSetAudioSettings()` in
`settings/+page.svelte` (the §1 carve-out works).
- [ ] CLAUDE.md and `02-svelte-frontend.md` carry the narrowed wording, including
the config carve-out and the `playerEvents.ts` exemption with its reason.
- [ ] **No behavioural change**: audio and video playback, queue reorder,
shuffle/repeat, sleep timer, background audio, and autoplay all behave as
before on **both Linux and Android**.
- [ ] Android seek and `onMount` lifecycle still correct after the
`VideoPlayer.svelte` migration (the known-fragile path).
- [ ] `bun run check` and `bun run test` pass.
- [ ] `bun run check:boundary` passes.
- [ ] Changed code carries `// TRACES:` comments.
- [ ] No Rust change, so no `bindings.ts` regeneration.
## Testing
**Frontend** (`bun run test`):
- Extend the existing facade tests to cover each new group-(b) method: it
forwards to the right command with the right arguments, and routes to the
active adapter where applicable.
- `queue.ts` tests: assert calls land on `playerController`, not `commands`. Mock
the facade — a test that mocks `commands` would pass either way and guard
nothing.
- Keep `tauriIntegration.test.ts` and the other IPC param-naming tests green;
they cover the camelCase rule this refactor must not disturb.
**Manual** (no automated coverage for these paths):
- Linux: play/pause/seek/next/prev, queue reorder, shuffle, repeat, sleep timer,
transcoded video (HLS), background audio enter/exit.
- Android: the same, plus lockscreen/MediaSession controls, and **seek after
entering the player** — the specific regression CLAUDE.md warns about.
Because this is a pure refactor, the strongest signal is that no test *changes
expectation*. A test needing its assertions rewritten means behaviour moved —
investigate rather than update it.
## TRACES
Allocate in `requirements.md`:
- **DR-095** — "UI playback control is routed exclusively through the
`playerController` facade (`src/lib/player/`), with `playerEvents.ts` inside
the boundary as its event plumbing and player *configuration* commands
explicitly outside it; enforced by `scripts/check-player-boundary.sh`."
Category: Player. Traces to UR-005. Status: Done on merge.
```typescript
// src/lib/player/index.ts
// TRACES: UR-005 | DR-095
```
New facade tests take `@req-test: UT-089` onward (next free UT is **UT-089**;
coordinate if landing alongside the sibling specs, which draw from the same
pool).
## Notes for the implementer
- A parallel Claude session may be active in this repo — `git diff` before
"repairing" unexpected changes (CLAUDE.md §Gotchas).
- **Order matters**: §2 (fill gaps) → §3 (migrate, `VideoPlayer.svelte` last and
alone) → §4 (add the check). Adding the check first turns `master` red.
- 🔴 **`VideoPlayer.svelte`**: no lifecycle calls after an `await` in `onMount`
it flips to HTML5 mode and breaks Android seek. Do not let a mechanical
substitution introduce an `await` before a lifecycle call.
- The facade's `requireHandle()` may throw where a raw `commands` call did not.
Check each migrated call site's error handling rather than assuming the
try/catch still covers the same cases.
- `playbackMode.ts` interacts with remote-mode routing (`play_on_session` vs
local MPV). Verify remote casting still works after migrating its
`playerPlayTracks` call.
- This spec is deliberately the *lowest* priority of the audit batch: it is the
largest diff and the only one carrying real regression risk, while the
traceability gate is a few lines and restores a dead safety net.
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# Spec: Two-path media — selectable playback bitrate, independent whole-file download
**Status:** Partially implemented. Landed: the cache/download unification
(DR-126, DR-127 — a cache entry *is* a `downloads` row with a shorter life, and
eviction only reclaims the temporary tier), local playback of downloaded media
(DR-128), and the one-path/one-row invariants that followed (DR-133 … DR-138).
DR-123 is in progress. Still open: the read-through capture itself — DR-122,
DR-124, DR-125.
**DR-121 has shipped and left this spec.** The player quality selector, the
per-playback bitrate ceiling, and the backend-owned stream decision it needed
were built as *backend-owned stream selection* (DR-225 … DR-228) and are
described in
[01-rust-backend.md](../architecture/01-rust-backend.md#stream-selection) and
[03-data-flow.md](../architecture/03-data-flow.md#video-stream-selection-flow).
The settings-level ceiling (DR-162) is the same section. What remains here is the
*capture* half only — this spec no longer specifies anything about choosing a
bitrate.
**Requirements:** UR-070, UR-071 → DR-122, DR-123, DR-124, DR-125; IR-032
**Related:** the locally-indexed search and downloaded-browse work, both
shipped — see
[03-data-flow.md](../architecture/03-data-flow.md) and
[06-downloads-and-offline.md](../architecture/06-downloads-and-offline.md)
## Summary
Two things that are today tangled become explicitly separate:
- **The playback path** streams at a bitrate the viewer can change from the
player. It is ephemeral and its rendition is volatile.
- **The download path** fetches the whole file at one canonical quality, in the
background, independently of whatever playback is doing.
Bytes fetched for playback are kept **only** when the playback rendition happens
to be the same artifact the download path would produce — i.e. direct play.
Otherwise playback bytes are discarded and the download path does its own fetch.
## Motivation
The appealing version of this — "stream and download at once, switch when enough
has arrived" — breaks the moment the viewer can change bitrate. A capture taken
while the rendition changes underneath it is a splice of two encodings: not a
playable file, and not something that can be honestly recorded as a download.
Once bitrate is selectable, one stream cannot serve both jobs.
Separating the paths also removes the thing that made the original idea
expensive: there is no mid-playback source swap to engineer, because the download
never has to take over the live session. It lands on disk and is used at the next
natural boundary — next episode, or next time the item is played.
What exists already and is *not* this: `SmartCache` predictively downloads *other*
items, `player_preload_upcoming` warms the next one, and
`refresh_queue_local_sources` swaps queue entries to local at boundaries. All of
it concerns items you are not currently playing.
## Layer assignment
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| Available bitrate options for an item | **Rust** | Derived from Jellyfin's media sources and playback-info negotiation; changes with the API. |
| Mapping a chosen bitrate to transcode parameters | **Rust** | Domain vocabulary. `get_video_download_url` already owns the quality→params mapping; playback must reuse it, not restate it. |
| Deciding whether playback bytes are keepable (direct play vs transcode) | **Rust** | Depends on the negotiated session. |
| Canonical download quality | **Rust** | Policy over domain data. |
| Cache eviction, storage budget, sparse-range bookkeeping | **Rust** | Storage policy. |
| Promotion to a `downloads` row, and what invalidates a cache entry | **Rust** | Domain state. |
| Rendering the quality selector; remembering the last choice | **Frontend** | Presentation and a view preference. The *list* comes from Rust. |
| WiFi-only / opt-in toggles | **Frontend collects, Rust enforces** | The control is UI; the gate must hold even if the UI never calls. |
Borderline, recorded: the **default** playback bitrate could look like a user
preference (frontend). It goes to Rust because it must be reconcilable with what
the server can actually produce for a given media source — a preference the
backend has to validate is not a preference the frontend can own alone. The
frontend stores the user's *choice*; Rust decides what that choice resolves to.
## Design
### DR-121 — moved out (shipped)
Bitrate selection in the player shipped as DR-225 … DR-228; see
[01-rust-backend.md](../architecture/01-rust-backend.md#stream-selection).
The one constraint here that the capture work still has to respect: a quality
change re-negotiates **within HLS**. Returning a progressive `stream.mp4` for a
transcode means playback never starts, because the server encodes the whole file
before serving a byte (DR-140). That is why DR-122 below abandons a capture on a
quality change rather than trying to splice one.
### DR-122 — The playback path is ephemeral
Playback bytes are not persisted unless DR-124 says they are keepable. No partial
capture is ever retained across a quality change: on change, any in-flight capture
for that session is abandoned and its partial file deleted.
### DR-123 — The download path is independent
Downloading the whole file is a separate operation through the existing download
manager, at one canonical quality (default `original`, the direct static copy),
using `/Videos/{id}/stream.mp4` — progressive and Range-capable, which is what
the resumable download worker relies on. It is unaffected by what playback is
doing, and playback is unaffected by it.
Once complete it becomes an ordinary download row, so everything already built on
top of downloads — offline browsing, `refresh_queue_local_sources`, the Downloads
page — picks it up with no further work.
**Prerequisite:** downloaded *video* is currently never played locally.
`repository_get_video_stream_url` goes straight to the online repo and
[player/[id]/+page.svelte:316](../../src/routes/player/[id]/+page.svelte#L316)
calls it with no local check — so a completed video download is still streamed.
This must be fixed or the whole feature is invisible for video.
### DR-124 — Keep playback bytes only when they *are* the download
Capture is enabled only where the played bytes and the canonical download artifact
are the same thing — a **direct-play** session. Then:
| Path | Mechanism |
|---|---|
| Android / ExoPlayer | `SimpleCache` + `CacheDataSource`, keyed by item id **and** media-source id so renditions never collide. LRU evictor sharing the existing smart-cache budget — not a second budget over the same disk. |
| Linux audio / MPV | `stream-record`, set through the existing `set_property` plumbing. |
| Linux video (HLS transcode) | **Not captured.** Segments are not a file; assembling one needs ffmpeg, which is not a dependency and which CI is forbidden from installing at job time. The download path (DR-123) covers this case instead. |
Two abandonment rules, both of which must delete the partial rather than promote
it:
- **Seek during an mpv capture.** `stream-record` is documented as intended for
linear streams; seeking breaks the recording. Straight-through listening
captures, scrubbing does not.
- **Any quality change** (DR-122).
### DR-125 — Promotion, rendition, and invalidation
A capture is promoted to a `downloads` row (`status = 'completed'`) only when it
covers the whole resource. Partial captures stay cache and remain evictable.
A new `downloads.source_rendition` column records the negotiated
quality/container/codec of whatever produced the bytes; `NULL` for rows fetched by
the existing paths, which are always `original`. This is what makes an "upgrade to
original" action possible later, and what stops a 720p capture and a 4K download
being indistinguishable rows.
**Invalidation.** A quality change never touches a file that already exists —
neither a permanent download nor a completed temporary one. Both remain valid
copies of the rendition they hold, and deleting either would throw away bytes
already paid for.
What a quality change *does* invalidate is an **in-flight** capture or background
download of cached media: it is abandoned and restarted at the newly chosen
quality, because a capture spanning a rendition change is a splice of two
encodings rather than a playable file (DR-122).
So the rule is about *ongoing* work, not stored files. Nothing in this spec
deletes user data.
### Gating
Capture and background download obey the existing WiFi-only gate and storage
budget, and are off unless opted in. Enforcement is in Rust.
## Out of scope
- **Mid-playback switch onto a completing download.** Two independent paths make
it unnecessary; the download is used from the next boundary.
- **Backfilling the unplayed remainder of a capture.** Watch 40 minutes and you
have 40 minutes; completing it needs sparse-range bookkeeping and a resumable
tail fetch. The DR-123 download path already produces a complete file, which is
the reason this can wait.
- **Bundling ffmpeg** to make transcoded video capturable. Real option, large
packaging decision, its own proposal.
- **Routing Linux video playback through `stream.mp4`.** Regresses a documented,
hard-won fix.
## Acceptance criteria
- [ ] The player offers the qualities Rust reports, and changing one resumes at
the same position with audio/subtitle selection preserved.
- [ ] A quality change abandons any in-flight capture and leaves no partial file.
- [ ] A quality change never deletes a `downloads` row.
- [ ] A completed background download of a video is *played from disk* on the next
play (the DR-123 prerequisite).
- [ ] A direct-play session played start-to-finish leaves a complete local file
with no second fetch; replaying it fetches no media bytes.
- [ ] Seeking during an mpv capture abandons it; no truncated file is promoted.
- [ ] A transcoded Linux video session is never captured, and never partially
promoted.
- [ ] Promoted rows record their rendition; existing paths still record
`NULL`/`original`.
- [ ] Gates hold with the setting off *and* with the frontend never sending it.
- [ ] Eviction cannot delete bytes backing a promoted download row.
- [ ] `bun run check`, `bun run test`, `cargo fmt`, `cargo clippy`,
`bun run test:rust`, `bun run check:boundary` pass; `bindings.ts`
regenerated if Rust types changed.
## Testing
Rust, table-driven and pure where possible: quality→params resolution shared with
the download path; keepability (direct play vs transcode vs gate off); promotion
(complete → promoted, partial → not, seek-abandoned → not, quality-changed → not);
invalidation (evicts cache, never a download row); rendition round-trip.
Android: instrumented — a played direct-play item yields cache entries, and a
replay issues no media network request.
Frontend: the quality list renders from backend data with no item-type or
codec taxonomy in `src/`; the selector's remembered choice is a view preference.
## TRACES
| Piece | Tag |
|---|---|
| Ephemeral playback / capture abandonment | `// TRACES: UR-070 \| DR-122` |
| Independent whole-file download + local video playback fix | `// TRACES: UR-071 \| DR-123, IR-032` |
| ExoPlayer cache / mpv stream-record / keepability | `// TRACES: UR-071 \| DR-124` |
| Promotion, `source_rendition`, invalidation | `// TRACES: UR-071 \| DR-125` |
## Notes for the implementer
- **A parallel Claude session is active in this repo.** `git diff` before
"repairing" anything you did not write.
- Do not duplicate the quality→transcode-parameter table. Call the existing one.
- Reuse the smart-cache storage budget; two budgets over one disk is how devices
fill up.
- The `downloads` FK to `items` is relaxed (migration 005) — exercise promotion
for an item that was never cached.
- Build DR-123's local-playback fix first. Without it nothing in this spec is
observable for video.
@@ -1,254 +0,0 @@
# Spec: Land the scoped-search boundary fix (implementation)
**Status:** Stage 1 Implemented — Stage 2 (result-side grouping) outstanding
**Requirements:** UR-049, UR-050 | DR-063, DR-066, DR-067 (existing — no new IDs)
**UX spec:** n/a — zero user-visible change is the point (see Acceptance criteria).
**Supersedes / revises:** implements [scoped-search-boundary.md](scoped-search-boundary.md),
which specified this fix but was never built. That spec remains the **design
authority**; this one is the delivery plan and status correction.
## Summary
[scoped-search-boundary.md](scoped-search-boundary.md) diagnosed a domain-taxonomy
leak, specified the fix in full detail, and became the justification for the
project's boundary rule in CLAUDE.md, the `check:boundary` tripwire, and the
spec-review checklist. **The fix was never implemented.** The leak it describes
is still live in `main`. This spec exists to close that gap and to correct the
record — the codebase currently enforces a rule against a violation it still
contains.
## Motivation
The mapping the rule forbids is present and in use:
```ts
// src/lib/utils/searchScope.ts:29-32
const SCOPE_ITEM_TYPES: Record<Exclude<SearchScope, "all">, string[]> = {
music: ["MusicAlbum", "MusicArtist", "Audio", "Playlist"],
movies: ["Movie"],
tv: ["Series", "Episode"],
};
```
This is not dead code. [library.ts:262](../../src/lib/stores/library.ts#L262)
calls `scopeItemTypes(scope)` and puts the result straight into
`options.includeItemTypes`. Meanwhile there is **no `SearchScope` anywhere in
`src-tauri/`**:
```console
$ grep -rn "SearchScope" src-tauri/src --include='*.rs'
(no output)
```
Three things make this the highest-value item found in the design-principles
audit:
1. **The rule's own founding incident is unremediated.** CLAUDE.md cites this
spec as "the incident this rule came from." A rule whose originating
violation is still shipping is not credible.
2. **The tripwire cannot see it.** `bun run check:boundary` passes — it greps for
a multi-type array literal *at the query site*, and this one is assigned to a
named const and dereferenced elsewhere. Broadening the tripwire is specified
separately by the tripwire hardening (DR-094, shipped);
note that hardening it **without** landing this fix would turn `master` red.
3. **The spec's own acceptance criterion fails today.** "Adding a hypothetical
new type to a scope requires editing only Rust" — adding a type to the Music
scope right now requires editing `searchScope.ts`.
## Layer assignment
Unchanged from [scoped-search-boundary.md](scoped-search-boundary.md) §Design;
restated so this spec is reviewable on its own.
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| Scope → Jellyfin item types (`music``MusicAlbum`, `MusicArtist`, `Audio`, `Playlist`) | **Rust** | Domain vocabulary. Changes if Jellyfin adds/renames an item type — the litmus test's "yes" case. This is the leak being fixed. |
| Result item → search group bucketing | **Rust** | Same taxonomy, result side. Classifying a `MediaItem` as a Song vs Album is Jellyfin vocabulary, not layout. |
| `All` sends no filter at all (≠ union of enumerated types) | **Rust** | A query-shaping rule with a correctness consequence (Person/folder results would be silently dropped). Belongs with the expansion it qualifies. |
| Group display order, labels, reordering, persistence | Frontend | Pure presentation — changes only if the UI is redesigned. Explicitly retained frontend-side. |
| `resolveSearchScope(pathname)` — route → initial scope | Frontend | Routing/navigation, no Jellyfin vocabulary. Stays exactly as-is. |
| Chip labels (`SCOPE_LABELS`), scope order (`SEARCH_SCOPES`) | Frontend | Display strings over an opaque enum. |
| `GROUP_SCOPE` (which group belongs to which scope) | **Delete** | Borderline taxonomy, made redundant: once Rust filters by scope, out-of-scope groups arrive empty and drop via the empty-omit rule. Borderline defaults to Rust; here it defaults to *gone*. |
The `SearchScope` and `SearchGroupId` **types** come to the frontend from
generated `bindings.ts`. Naming an opaque enum variant is not taxonomy; knowing
what item types it expands to is.
## Design
**Follow [scoped-search-boundary.md](scoped-search-boundary.md) §Design as
written** — `SearchScope` enum + `item_types()` in `repository/types.rs`,
`SearchOptions.scope`, `SearchGroupId`/`SearchGroup`/`GroupedSearchResult`,
scope-wins precedence, `All``None` → no filter. It is not restated here;
duplicating it would create two drifting copies of the same design.
This spec adds only the delivery sequencing that the original left implicit.
### Staging: land it in two reviewable pieces
The original bundles the query side and the result side into one change. That is
a large diff touching Rust types, `bindings.ts`, the store, and a component, with
the `search-event` dual-payload hazard in the middle. Split it:
**Stage 1 — query side (closes the leak).**
`SearchScope` enum, `SearchOptions.scope`, command resolves scope →
`include_item_types` in Rust, `library.ts` sends `{ scope }`, delete
`SCOPE_ITEM_TYPES` and `scopeItemTypes()`. Result grouping stays as it is.
After Stage 1 the actual boundary violation is gone and
the hardened tripwire (DR-094) can pass.
**Stage 2 — result side.** `SearchGroupId`/`SearchGroup`/`GroupedSearchResult`,
Rust bucketing, both payloads converted, `composeSearchGroups()` shrunk,
`GROUP_ITEM_TYPES`/`groupItemTypes()`/`GROUP_SCOPE` deleted.
Both stages are required for the original spec's acceptance criteria to pass;
Stage 1 alone leaves `GROUP_ITEM_TYPES` in the frontend. **Stage 1 is not a
stopping point** — it is a review boundary. Do not mark the parent spec
Implemented until Stage 2 lands.
### Stage 1 — delivered (July 2026)
- `SearchScope` enum + `item_types()` in [repository/types.rs](../../src-tauri/src/repository/types.rs);
`All``None` → no filter.
- `SearchOptions.scope` with `resolve_scope()`; scope wins over
`include_item_types`, which stays for the non-search `get_items` callers.
- `repository_search` resolves the scope **once, before** the cache/server split,
so both phases filter identically.
- `SCOPE_ITEM_TYPES` and `scopeItemTypes()` deleted; `searchScope.ts` now
re-exports `SearchScope` from the generated bindings instead of a hand-written
union.
- [library.ts](../../src/lib/stores/library.ts) sends `{ scope }`.
- 8 Rust tests (`search_scope_tests`); the frontend suite now asserts the
*opaque scope* is sent rather than an item-type list.
Verified: adding `"AudioBook"` to the Music scope changed **zero** files under
`src/` — the criterion that failed before this work.
**Stage 2 remains open**: `GROUP_ITEM_TYPES` / `groupItemTypes()` (result-side
bucketing, single-type-per-group) are still in `searchScope.ts`, and both search
payloads still carry a flat `MediaItem[]` rather than `GroupedSearchResult`.
### 🔴 The `search-event` dual payload (Stage 2)
The original flags this as "the single largest part of the change and the
easiest to half-do." Restating because it is the one thing that silently breaks:
search resolves **twice** — the command returns instant cache results, then the
merged cache+server union arrives via `search-event`. Both payloads must carry
`GroupedSearchResult`. Convert one and the UI flickers between shapes as server
results land.
Write the failing test for the *event* payload first — the command return is the
obvious half, the event is the half that gets forgotten.
### Note on `SearchOptions.scope` and specta
`SearchOptions` is already `#[serde(rename_all = "camelCase")]` with
`skip_serializing_if = "Option::is_none"`. Add `scope: Option<SearchScope>`
following that pattern so `All`/absent omits the key. Regenerate `bindings.ts`
`SearchOptions` there is currently
`{ limit?, includeItemTypes?, searchTerm? }` and must gain `scope?`. Never
hand-edit it.
## Out of scope
- Redesigning anything in [scoped-search-boundary.md](scoped-search-boundary.md).
If implementation shows the design wrong, revise **that** spec, don't fork it.
- Online/offline `include_item_types` **filtering** — already correct; only the
source of the type list moves.
- Ranking within or across groups (DR-090 territory).
- Chip UX, scope persistence, group-order persistence — unchanged.
- The two lesser type-set sites in `DownloadedBrowse.svelte` and
`GenericMediaListPage.svelte`, handled in
the hardened tripwire (DR-094, see `scripts/check-frontend-boundary.sh`).
- Broadening the tripwire itself — same sibling spec.
## Acceptance criteria
Inherits every criterion from [scoped-search-boundary.md](scoped-search-boundary.md)
§Acceptance criteria. Additionally:
- [ ] `grep -rn "SearchScope" src-tauri/src --include='*.rs'` returns matches —
the enum exists in Rust (it does not today).
- [ ] `grep -n "SCOPE_ITEM_TYPES\|scopeItemTypes\|GROUP_ITEM_TYPES\|groupItemTypes" src/lib/utils/searchScope.ts`
returns nothing.
- [ ] `grep -rn "scopeItemTypes" src/` returns nothing — including the
`library.ts` import and call site.
- [ ] `SearchOptions` in `bindings.ts` includes `scope`; regenerated, not
hand-edited.
- [ ] **Behaviour is byte-identical for the user**: same scoping, same groups,
same order, same empty-group omission, offline included. This spec is a
pure refactor — any visible change is a defect.
- [ ] `All` scope sends no `includeItemTypes` (asserted in a Rust test, not by
inspection).
- [ ] Adding a type to the Music scope requires editing **only** Rust —
demonstrate by making the edit and confirming no `src/` file changes.
- [ ] `scoped-search-boundary.md` status flips to **Implemented**, and
`scoped-search.md`'s "frontend only, no Rust changes" framing gets a
banner pointing at the corrected design.
- [ ] `bun run check` and `bun run test` pass.
- [ ] `cargo fmt` clean, `cargo clippy` clean, `bun run test:rust` passes.
- [ ] `bun run check:boundary` passes.
- [ ] Changed code carries `// TRACES:` comments (IDs below).
## Testing
Follow [scoped-search-boundary.md](scoped-search-boundary.md) §Testing. Emphases:
**Rust** (`cargo test`):
- `SearchScope::item_types()` per scope; `All``None`.
- Scope resolution happens **before** the online/offline split, so both paths
get the same filter — a regression here is invisible until someone searches
offline.
- `scope` set + `include_item_types` set → scope wins (the documented
precedence; assert it rather than trusting the doc).
- Stage 2: mixed `Vec<MediaItem>` buckets correctly; unknown types dropped;
canonical group order; **the `search-event` payload is the grouped shape**.
**Frontend** (`bun run test`):
- `resolveSearchScope()` tests in `searchScope.test.ts` must pass **unchanged**
they cover the part that is not moving, and are the regression net proving the
refactor didn't disturb routing.
- `library.ts` sends `{ scope }` and never `includeItemTypes` for search.
- `composeSearchGroups()` over fixture `SearchGroup[]` with no `.type`
inspection in the implementation.
**Offline parity:** run a scoped search with the server unreachable and confirm
identical grouping. The offline repository path honours `include_item_types`
independently, and this is the case most likely to be missed.
## TRACES
No new requirement IDs — this implements existing ones. Retag as the code moves:
```rust
// src-tauri/src/repository/types.rs
/// TRACES: UR-049 | DR-063
pub enum SearchScope { … }
```
```typescript
// src/lib/utils/searchScope.ts — keep the file header; it retains
// resolveSearchScope + group-order presentation logic.
// TRACES: UR-049, UR-050 | DR-063, DR-066, DR-067
```
Update DR-063's text in `requirements.md` to state that scope expansion is owned
by Rust, so the requirement stops describing the leaked design. New Rust tests
take `@req-test: UT-089` onward (next free UT is **UT-089**).
## Notes for the implementer
- A parallel Claude session may be active in this repo — `git diff` before
"repairing" unexpected changes (CLAUDE.md §Gotchas).
- **Read [scoped-search-boundary.md](scoped-search-boundary.md) first.** This
spec is deliberately thin on design; that one is the authority.
- Sequence with the sibling specs: **Stage 1 here → then
the hardened tripwire (DR-094)**. Hardening
the tripwire first turns `master` red on a known-unfixed violation.
- `git log --oneline -- docs/specs/scoped-search-boundary.md` is worth a look
before starting — understanding why the fix stalled may surface a constraint
the spec didn't record.
- The user-visible-change count for this spec is zero. If QA reports a
difference in search results, that is a bug in the refactor, not an
improvement.
-280
View File
@@ -1,280 +0,0 @@
# Spec: Move search scope taxonomy behind the Rust boundary
**Status:** Design authority — **Stage 1 implemented**, Stage 2 outstanding.
The scope→item-type mapping now lives in Rust (`SearchScope::item_types()` in
`repository/types.rs`, DR-063 … DR-067). The *result-side* grouping table
(`GROUP_ITEM_TYPES` in `src/lib/utils/searchScope.ts`) is still in the
frontend, and `check:boundary` does not match its shape. Delivery status and
the remaining work live in
[scoped-search-boundary-implementation.md](scoped-search-boundary-implementation.md);
this spec remains the design authority.
**Scope:** Rust + Frontend. **Revises a decision in
[scoped-search.md](scoped-search.md).**
**Requirements:** UR-049, UR-050 (existing) → new DRs for the boundary move
(allocate on implementation; suggested DR-063/DR-065/DR-067 revisions plus one
new DR for the grouped result shape — see [requirements.md](../requirements.md)).
**UX spec:** unchanged — [ux-flows.md §6](../ux-flows.md). This is a pure
architecture/boundary change with **no user-visible behaviour difference**.
## Why this spec exists
[scoped-search.md](scoped-search.md) shipped scoped search as "frontend only, no
Rust changes." That was the smallest wiring change, and it worked — but it left
**Jellyfin's item-type taxonomy encoded in the presentation layer**, which
violates the project's core boundary rule ("Svelte frontend — presentation
only"; all business logic in Rust — see [CLAUDE.md](../../CLAUDE.md) and
[architecture/02-svelte-frontend.md](../architecture/02-svelte-frontend.md)).
The offending knowledge lives in
[searchScope.ts](../../src/lib/utils/searchScope.ts):
```ts
const SCOPE_ITEM_TYPES = {
music: ["MusicAlbum", "MusicArtist", "Audio", "Playlist"],
movies: ["Movie"],
tv: ["Series", "Episode"],
};
const GROUP_ITEM_TYPES = {
songs: ["Audio"], albums: ["MusicAlbum"], artists: ["MusicArtist"],
movies: ["Movie"], tvShows: ["Series", "Episode"],
};
```
This is a **domain definition** — "what the category *Music* means in Jellyfin's
vocabulary" — expressed twice, in the wrong layer. The concrete failure it
creates: the day the backend starts returning a type the frontend never
enumerated (e.g. `MusicVideo`, or Jellyfin renaming a kind), search silently
drops it from both the query filter and the result buckets, and nothing in the
Rust layer — the actual authority on Jellyfin's API — can correct it. Two
sources of truth that will drift.
**This must be fixed while the feature is uncommitted**, before the leak ships
baked into a released wire contract.
### What is *not* a leak (leave it alone)
Single concrete-type list pages are **not** business logic and stay as-is:
- `music.ts``["MusicAlbum"]` / `["Playlist"]`, `movies.ts``["Movie"]`,
`tv.ts``["Series"]`
- `GenericMediaListPage.svelte``[config.itemType]`
- `ArtistDetailView`, `RelatedItemsSection`, `AddToPlaylistModal`,
`PersonDetailView`
"This page shows albums" is a legitimate presentation choice expressed through a
generic `getItems(parentId, { includeItemTypes })` API. Only the **search scope
taxonomy** (a semantic category → many types, defined once and reused) crosses
the line. Do **not** invent a backend enum for every list page — that is
over-abstraction, not cleaner separation.
## The boundary rule after this change
> The frontend never names a Jellyfin item type **in connection with search.**
> It sends an opaque `scope`, and receives results already sorted into labelled
> groups. The frontend owns only **group order** (presentation) and
> **rendering**.
## Design
### Rust owns scope → item-types (query side)
Add an opaque enum that crosses IPC, and move the expansion table into Rust:
```rust
// repository/types.rs
#[derive(specta::Type, Serialize, Deserialize, Clone, Copy, Debug)]
#[serde(rename_all = "camelCase")]
pub enum SearchScope { All, Music, Movies, Tv }
impl SearchScope {
/// The Jellyfin item types this scope requests, or None for `All`
/// (which must send NO includeItemTypes — see below).
pub fn item_types(self) -> Option<Vec<String>> {
match self {
SearchScope::All => None,
SearchScope::Music => Some(vec!["MusicAlbum", "MusicArtist", "Audio", "Playlist"]
.into_iter().map(String::from).collect()),
SearchScope::Movies => Some(vec!["Movie".into()]),
SearchScope::Tv => Some(vec!["Series".into(), "Episode".into()]),
}
}
}
```
`SearchOptions` gains `scope` and the search command resolves it into the
existing `include_item_types` filter **inside Rust**, before dispatching to the
online/offline paths (which already honour `include_item_types` — do not touch
their filtering, per [scoped-search.md](scoped-search.md) §Background 2).
```rust
pub struct SearchOptions {
pub limit: Option<usize>,
pub search_term: Option<String>,
pub scope: Option<SearchScope>, // NEW
// include_item_types stays for the single-type list-page callers,
// but the SEARCH command derives it from `scope` when scope is set.
}
```
**Precedence:** if `scope` is set it wins; `include_item_types` remains for the
non-search `getItems` callers. Document this so a future reader does not send
both.
**`All` sends no filter.** Preserve the existing invariant: `All` must omit
`includeItemTypes` entirely, not send the union of every enumerated type — types
nobody listed (Person, folders) would otherwise be filtered out. This is why
`item_types()` returns `Option`, and the command must skip the filter on `None`.
### Rust owns result bucketing (result side)
Results arrive **pre-grouped**. Rust classifies each returned `MediaItem` into a
group by its type — the `GROUP_ITEM_TYPES` knowledge, moved to the authority:
```rust
#[derive(specta::Type, Serialize, Deserialize, Clone, Copy, Debug)]
#[serde(rename_all = "camelCase")]
pub enum SearchGroupId { Songs, Albums, Artists, Movies, TvShows }
#[derive(specta::Type, Serialize, Deserialize, Clone, Debug)]
#[serde(rename_all = "camelCase")]
pub struct SearchGroup { pub id: SearchGroupId, pub items: Vec<MediaItem> }
#[derive(specta::Type, Serialize, Deserialize, Clone, Debug)]
#[serde(rename_all = "camelCase")]
pub struct GroupedSearchResult { pub groups: Vec<SearchGroup> }
```
Rust emits **every** non-empty group it can classify, in a stable canonical
order. It does **not** apply the user's ordering or drop out-of-scope groups —
those are presentation and stay frontend-side (see below). Items whose type maps
to no group are omitted from grouped output (same as today's frontend filter).
### 🔴 The `search-event` wrinkle — both payloads must change
Search returns results **twice**: the command resolves with instant local-cache
results, then the merged cache+server union arrives later via the `search-event`
listener (see [library.ts](../../src/lib/stores/library.ts) `search()` and
[architecture/03-data-flow.md](../architecture/03-data-flow.md)). **Both** the
command return value **and** the `search-event` payload must carry
`GroupedSearchResult`. If only one is converted, the instant results group and
the merged ones do not (or vice versa), and the UI flickers between shapes. This
is the single largest part of the change and the easiest to half-do.
### What the frontend keeps (all pure presentation)
[searchScope.ts](../../src/lib/utils/searchScope.ts) **retains**:
- `SearchScope` type — now sourced from the generated bindings, mirroring the
Rust enum (delete the hand-written union).
- `SCOPE_LABELS`, `SEARCH_SCOPES` (chip labels / order).
- `resolveSearchScope(pathname)` — route → initial scope. Pure, DOM-free,
unit-tested. **Stays exactly as-is.**
- `SearchGroupId` (from bindings), `GROUP_LABELS`.
- `normalizeGroupOrder`, `groupsForScope`, `moveGroup`, `reorderGroups`,
`DEFAULT_GROUP_ORDER` — group-order persistence and reordering, all
presentation.
[searchScope.ts](../../src/lib/utils/searchScope.ts) **loses**:
- `SCOPE_ITEM_TYPES`, `GROUP_ITEM_TYPES` (moved to Rust).
- `scopeItemTypes()`, `groupItemTypes()`.
- The `.type`-inspecting body of `composeSearchGroups()`.
`composeSearchGroups()` shrinks to a **presentation composition over Rust's
groups** — no `.type` inspection anywhere:
```ts
// Take Rust's pre-bucketed groups; drop out-of-scope, sort by saved order,
// attach labels, omit empties. No Jellyfin type vocabulary.
composeSearchGroups(groups: SearchGroup[], scope, order): DisplayGroup[]
```
`GROUP_SCOPE` (which group belongs to which scope) is a borderline case: it is
"is Songs part of the Music scope," arguably taxonomy. But because Rust already
filtered the query by scope, out-of-scope groups will simply be **empty** and
drop out via the empty-omit rule — so the frontend does not strictly need
`GROUP_SCOPE` for correctness once Rust filters. **Recommendation:** delete
`GROUP_SCOPE` and rely on empty-omission; if kept for belt-and-suspenders, treat
it as a display hint, not authority.
### Frontend call-site changes
- [library.ts](../../src/lib/stores/library.ts) `search(query, scope)` sends
`{ scope }` in `SearchOptions` instead of computing `includeItemTypes`.
Everything else (requestId bump, stale guard, 10s timeout, empty-query clear,
event merge) is preserved.
- [SearchResults.svelte](../../src/lib/components/search/SearchResults.svelte)
consumes `SearchGroup[]` from the store instead of a flat `MediaItem[]` +
client-side `composeSearchGroups(results, …)`. The store now holds grouped
results.
- [search/+page.svelte](../../src/routes/search/+page.svelte) is unchanged in
behaviour; only the type it passes to `SearchResults` changes.
## Out of scope
- Any change to online/offline `include_item_types` **filtering** — it already
works; only the *source* of the type list moves.
- Single concrete-type list pages (see "What is not a leak").
- Ranking within or across groups.
- The UX / chip behaviour / persistence mechanism — all unchanged from
[scoped-search.md](scoped-search.md).
## Acceptance criteria
- [ ] No Jellyfin item-type string literal (`"MusicAlbum"`, `"Audio"`, …) remains
in `searchScope.ts` or any search call path. Verify:
`grep -rn '"MusicAlbum"\|"MusicArtist"\|"Audio"\|"Series"\|"Episode"\|"Movie"\|"Playlist"' src/lib/utils/searchScope.ts src/lib/stores/library.ts` returns nothing.
- [ ] `SearchScope` and `SearchGroupId` in the frontend come from the generated
`bindings.ts`, not hand-written unions.
- [ ] Search behaviour is **identical** to today for the user: same scoping, same
groups, same order, same empty/out-of-scope omission, offline included.
- [ ] Both the command return and the `search-event` payload carry the grouped
shape; no shape flicker between instant and merged results.
- [ ] `All` scope still sends no `includeItemTypes` (assert in a Rust test).
- [ ] Adding a hypothetical new type to a scope requires editing **only** Rust.
- [ ] `cargo fmt` clean, `cargo clippy` clean, `bun run test:rust` passes.
- [ ] `bun run check` and `bun run test` pass; `bindings.ts` regenerated and
committed.
## Testing
**Rust** (`src-tauri`, `cargo test`):
- `SearchScope::item_types()`: each scope's list, and `All``None`.
- Search command: `scope: Music` resolves to the four music types on the query;
`scope: All` sends no `include_item_types`.
- Bucketing: a mixed `Vec<MediaItem>` classifies into the right `SearchGroupId`s;
unknown types are dropped; groups come out in canonical order.
- The `search-event` payload is the grouped shape (guard the wrinkle).
**Frontend** (vitest, `src/lib/**/*.test.ts`) — update existing tests:
- `librarySearchScope.test.ts` currently asserts `includeItemTypes` on the
outgoing options — **rewrite** to assert `scope` is sent instead.
- `searchScope.test.ts` — drop `scopeItemTypes`/`groupItemTypes` cases; keep and
extend `resolveSearchScope`, order normalize/move/reorder, and the new
compose-over-groups (order + empty-omit, no type inspection).
- `searchGroupOrder.test.ts` — unchanged.
## TRACES
Per [CLAUDE.md](../../CLAUDE.md), tag requirement-implementing code:
- `SearchScope` enum + `item_types()` + search command scope resolution:
`UR-049 | DR-063` (revised — resolution now Rust-side).
- Grouped result shape + bucketing: `UR-050 | DR-067` (revised) + a new DR for
the wire shape.
- `library.ts` store change: `UR-049 | DR-065` (revised — sends scope not types).
## Notes for the implementer
- This spec **revises** [scoped-search.md](scoped-search.md) §Background 2 and
§Design "Scope model / Threading scope through the store," which asserted no
Rust change. Update that spec's status to note the boundary was moved, or add a
banner pointing here — do not leave the two specs contradicting silently.
- The IPC camelCase rule applies to the new enums and structs
([CLAUDE.md](../../CLAUDE.md)): `#[serde(rename_all = "camelCase")]` on structs;
the tagged-enum tag convention if any enum becomes tagged. Add/extend a
`tauriIntegration`-style test if a new command is introduced.
- Regenerate `bindings.ts` via the tauri-specta build step after changing Rust
types; do not hand-edit it.
- **Another Claude session may be active in these same files** (per project
memory). `git diff` before repairing anything unexpected; these search files
are exactly the ones a parallel session touched.
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# Spec: Context-scoped search with filter chips and configurable group order
> ⚠️ **Superseded in part by
> [scoped-search-boundary.md](scoped-search-boundary.md).** The "frontend only,
> no Rust changes" decision below (§Background 2, §Design "Scope model" and
> "Threading scope through the store") left Jellyfin's item-type taxonomy in the
> presentation layer, which violates the backend/frontend boundary. The taxonomy
> is being moved into Rust. The **user-facing behaviour and UX in this spec are
> unchanged**; only where the scope→item-type mapping and result bucketing live
> changes. Read the boundary spec before touching search code.
>
> **Progress:** the scope→item-type mapping now lives in Rust
> (`SearchScope::item_types()`); the frontend sends an opaque scope. Result-side
> bucketing (`GROUP_ITEM_TYPES`) is still frontend-side — see
> [scoped-search-boundary-implementation.md](scoped-search-boundary-implementation.md)
> §Stage 2.
**Status:** Implemented (boundary revision: query side done, result side pending)
**Scope:** Frontend only. No Rust changes required. *(Revised — see banner.)*
**Requirements:** UR-049 → DR-063, DR-064, DR-065; UR-050 → DR-066, DR-067
(see [requirements.md](../requirements.md)).
**UX spec:** [ux-flows.md §6](../ux-flows.md) — §6.1 scope, §6.2 layout,
§6.3 group order, §6.4 current deviations.
## Summary
Two related changes to search:
1. **Scope** — a search started inside a library searches *that* library.
Started from Home, `/library`, or the search tab, it searches everything.
The active scope shows as a chip row under the search bar, preselected from
context and freely changeable without retyping.
2. **Group order** — the order result groups appear in (Songs, Albums, Artists,
Movies, TV Shows) becomes a drag-and-drop setting instead of being hardcoded.
## Motivation
Searching "office" while browsing TV currently returns music albums, because
both search entry points call the same unscoped query. The user has already
told us what they're looking at; ignoring that makes search feel indiscriminate
and pushes the relevant result below unrelated media.
## Background: what already exists
Verified in code — **most of the plumbing is already there.** This is
substantially a wiring task, not new infrastructure.
1. **`SearchOptions` already carries the filter.**
[bindings.ts](../../src/lib/api/bindings.ts) —
`SearchOptions = { limit?, includeItemTypes?, searchTerm? }`.
2. **Rust already honours `include_item_types` on both paths** — online
([online.rs](../../src-tauri/src/repository/online.rs), in the `get_items`
options mapping) and offline
([offline.rs](../../src-tauri/src/repository/offline.rs), which builds a SQL
type filter from it). **Do not add Rust code for filtering.**
3. **Per-page list search already does this correctly.**
[GenericMediaListPage.svelte](../../src/lib/components/library/GenericMediaListPage.svelte)
passes `includeItemTypes: [config.itemType]` to `repo.search(...)`. Use it as
the reference for the call shape, including the `requestId` handling.
4. **The gap is exactly one function.**
[library.ts](../../src/lib/stores/library.ts) — `search(query)` takes only a
query and calls `repo.search(query, { limit: 10000 }, requestId)`, dropping
any scope. Both callers
([search/+page.svelte](../../src/routes/search/+page.svelte) and
[library/+layout.svelte](../../src/routes/library/+layout.svelte)) go through
it.
5. **Group order is hardcoded in markup.**
[SearchResults.svelte](../../src/lib/components/search/SearchResults.svelte)
categorizes into `music{tracks,albums,artists} / movies / tvShows` and
renders three fixed sections in source order.
6. **Frontend preferences persist via `localStorage`**, per the existing
`viewMode` precedent in [library.ts](../../src/lib/stores/library.ts)
(`jellytau-view-mode`). Follow that pattern — **do not** add a Rust settings
command for this.
## Design
### Scope model
One `SearchScope` type, defined once and shared:
| Scope | `includeItemTypes` | Chip label |
|-------|--------------------|------------|
| `all` | *unset* | All |
| `music` | `MusicAlbum`, `MusicArtist`, `Audio`, `Playlist` | Music |
| `movies` | `Movie` | Movies |
| `tv` | `Series`, `Episode` | TV |
`all` must send **no** `includeItemTypes` key rather than a list of every type —
the two are not equivalent for item types not enumerated here (Person, folders).
### Route → scope resolution (DR-063)
A pure function, unit-testable without a DOM:
```ts
resolveSearchScope(pathname: string): SearchScope
```
- `/library/music*``music`
- `/library/movies*``movies`
- `/library/tv*``tv`
- `/`, `/library`, `/search`, anything else → `all`
Note `/library/shows/genres` exists as a route; treat `shows` as `tv`. Check the
current route list before finalising — do not assume this table is exhaustive.
### Scope is a starting point, not a lock (DR-064)
The resolved scope sets the **initial** chip only. Once the user taps a chip,
their choice governs until they leave the search surface. Concretely: derive the
initial value from the route, hold it in component state, and do not re-derive
it on every navigation — otherwise a user who widens to All snaps back to TV.
Changing a chip re-runs the current query at the new scope. Changing the query
keeps the current scope.
### Threading scope through the store (DR-065)
Extend the store's search signature to accept an optional scope and pass
`includeItemTypes` down to `repo.search`. Preserve the existing behaviour
exactly: the `requestId` bump, the stale-response guard, the `search-event`
listener merge, the 10s timeout, and the empty-query clear path. This is an
additive parameter — no caller should break.
### Group order (DR-066, DR-067)
Persist an ordered array of group ids:
```
["songs", "albums", "artists", "movies", "tvShows"] // shipped default
```
Rendering composes scope and order as **two independent axes**, in this order:
1. drop groups outside the active scope,
2. sort the remainder by the user's saved order,
3. omit groups that came back empty.
Scope never rewrites the saved order — narrowing to Music and back to All must
restore the user's full arrangement. See [ux-flows.md §6.3](../ux-flows.md) for
the worked example.
Settings gets a reorderable list. **Dragging alone is not sufficient**: provide
keyboard-operable move up/down controls with proper labels, or the setting is
unusable with a screen reader and on any pointerless input.
Unknown or missing ids in the stored array must not crash rendering — treat the
stored order as a hint, append any group it doesn't mention, and ignore ids that
no longer exist. A user upgrading from a build with fewer groups must not lose
the new ones.
## Out of scope
- Ranking *within* a group. Order is presentation-only.
- Server-side search ranking or the Jellyfin query itself.
- Scope chips on the per-page list search in `GenericMediaListPage` — that page
is already implicitly scoped by its own `itemType`.
- Any Rust change.
## Acceptance criteria
- [ ] Searching from inside Music returns no movies or TV; from inside TV, no music.
- [ ] Searching from Home, `/library`, or the search tab returns all types.
- [ ] The chip row renders under the search bar on both the search page and the
in-library header search, with the context-derived chip preselected.
- [ ] Tapping a chip re-runs the search with the query preserved; editing the
query preserves the selected chip.
- [ ] Tapping "All" from a context-scoped search widens results without retyping.
- [ ] Result groups render in the user's configured order, with out-of-scope and
empty groups omitted and relative order preserved.
- [ ] Group order is reorderable by drag **and** by keyboard, persists across
restarts, and ships with the documented default.
- [ ] Offline search respects scope (the offline path already filters — verify,
don't reimplement).
- [ ] `bun run check` and `bun run test` pass.
## Testing
Follow the existing frontend test conventions (vitest, `src/lib/**/*.test.ts`).
- `resolveSearchScope` — pure unit tests over the route table, including the
`/library/shows/genres` case and unknown routes falling back to `all`.
- Scope → `includeItemTypes` mapping, asserting `all` omits the key entirely.
- The compose step: scope filter + user order + empty-group omission, including
the "narrow then widen restores order" case and a stored order containing an
unknown id.
- Store-level: scoped search forwards `includeItemTypes` to the repository, and
the existing stale-`requestId` guard still discards superseded responses.
New requirement-implementing code needs `TRACES:` comments — see
[CLAUDE.md](../../CLAUDE.md). Suggested tags: the scope resolver and chip row
`UR-049 | DR-063, DR-064`, the store change `UR-049 | DR-065`, the settings list
and ordered rendering `UR-050 | DR-066, DR-067`.
## Notes for the implementer
- Read [ux-flows.md §6](../ux-flows.md) first — it is the behavioural spec; this
document is the implementation plan.
- The IPC camelCase rule applies to anything new that crosses the boundary
([CLAUDE.md](../../CLAUDE.md)) — though this change should not add commands.
- Another session may be active in this repo. Check `git diff` before
"repairing" unexpected changes.
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# Spec: Windows native audio backend
**Status:** Proposed — not started. Windows still runs on
`WebviewAudioBackend`. Blocked on [libmpv2-migration.md](libmpv2-migration.md),
whose crate swap has not landed either.
**Requirements:** UR-003, UR-027, UR-032, UR-033 → DR-030, DR-035, DR-036;
⚠️ the suggested id **IR-030 has since been allocated** to the scheduled catalog
crawl — allocate a fresh id (IR-033 or later) on implementation
**UX spec:** n/a — Settings Audio already renders the controls
**Supersedes / revises:** acts on the "audio can unify, video cannot" conclusion in [playback-backend-unification.md](playback-backend-unification.md)
## Summary
Give Windows a real native audio backend instead of the current webview
`<audio>` shim. Windows is the only platform where audio playback has no decoder
of its own: `WebviewAudioBackend` hands a URL to a frontend `<audio>` element and
relays transport commands. It cannot set volume, cannot apply any audio setting,
and reports state only via DOM events.
Audio needs no rendering surface, so **none of the webview-compositing problems
that block unified video apply here.** This is the cleanest available win.
## Motivation
`WebviewAudioBackend` was a deliberate stopgap ("audio-only playback for
platforms without a native audio backend"), and it works — but it has a hard
functional gap. From `webview_audio_backend.rs`:
```rust
fn set_volume(&mut self, volume: f32) -> Result<(), PlayerError> {
// ...stores locally only; there is no ControlCommand action for volume
}
```
So volume changes never reach the element; the frontend has to observe the player
store and apply volume itself. `set_audio_settings` likewise stores values that
nothing consumes — EQ, normalization, and gapless are all inert on Windows.
Meanwhile the backend-unification investigation established that a native *audio*
engine is unproblematic on Windows specifically: `tauri-plugin-libmpv` lists
Windows as its **fully tested** platform (in contrast to Linux, where embedding
is broken — but that is a *video surface* problem, which audio does not have).
## Layer assignment
| Logic / responsibility | Layer | Why it belongs there |
|------------------------|-------|----------------------|
| Decoding and playing the audio stream | Rust | Playback is domain logic; every other platform already decodes in Rust or a native player. The webview shim is the anomaly. |
| Applying `AudioSettings` (EQ/normalize/gapless) | Rust | Same `AudioSettings` contract as MPV/ExoPlayer; band layout and presets stay canonical in `settings.rs`. |
| Position/state reporting | Rust | Restores the project's core principle — the player is the authoritative source of state. Today Windows inverts this: the DOM element is authoritative and Rust mirrors it. |
| Volume | Rust | Currently broken precisely because it is split across the boundary. |
| Rendering the player UI | Frontend | Unchanged. |
The strongest argument for this change is the third row. CLAUDE.md states
playback state is one-directional with the player authoritative; on Windows that
is currently false, and the `player_report_*` round-trip exists to paper over it.
## Design
### Engine choice
Two viable options; **libmpv is recommended** for consistency with the Linux
audio backend.
| | libmpv | GStreamer |
|---|---|---|
| Windows status | ✅ `tauri-plugin-libmpv` reports fully tested | ✅ works, but… |
| Rust bindings | `libmpv2` 6.0.0, active | `gstreamer-rs` 0.25.x, excellent |
| Cross-MSVC from Linux | ⚠️ needs prebuilt DLL + import lib | ❌ `gstreamer-sys` uses pkg-config, fights `cargo-xwin` |
| Code reuse | ✅ `MpvBackend` logic is directly reusable | ❌ a second engine to learn |
| Crossfade capable | ❌ single-stream chain | ✅ `audiomixer` |
libmpv wins on reuse: `MpvBackend`'s `set_audio_settings` — the `af` lavfi graph
built by `build_af_filter`, `eq_filter_entries`, `normalize_filter_entry` — is
platform-independent and would apply unchanged.
The one reason to prefer GStreamer is crossfade (UR-031), which mpv structurally
cannot do. If crossfade becomes a priority, revisit; it would then argue for
GStreamer on *both* Linux and Windows, which is a much larger change.
### Structure
Rename the cfg gate so `MpvBackend` is no longer Linux-only:
```rust
// src-tauri/src/player/mod.rs
#[cfg(any(target_os = "linux", target_os = "windows"))]
pub mod mpv_backend;
```
`MpvBackend::new` needs one platform-specific branch: `detect_audio_system()`
currently probes `pactl`/`pw-cli`/`/proc/asound/cards` to pick an `ao`. On
Windows the equivalent is `wasapi` (mpv's default), so the detection is a
`#[cfg]` returning `"wasapi"` — no probing needed.
Everything else — the event loop, the 250ms position thread, the seek-suppression
window, the `af` filter graph — is unchanged.
`WebviewAudioBackend` stays for other targets (macOS and anything else hitting
the `not(any(...))` arm) and as the fallback if libmpv fails to initialize. The
existing `emit_backend_init_failed` path already handles that gracefully.
### Build
`libmpv2-sys` is well-suited to cross-compilation: no pkg-config, vendored
headers, pregenerated bindings (no libclang). It emits `cargo:rustc-link-lib=mpv`
unconditionally, so the build must supply a linkable import library for
`x86_64-pc-windows-msvc`.
Keep the `build_libmpv` feature **off** — its Unix path shells out to mpv-build
and explicitly rejects cross-compilation.
🔴 Per CLAUDE.md, the prebuilt libmpv **must be added to the builder image**
(`Dockerfile.builder` → rebuild + push via `scripts/build-builder-image.sh`), not
installed at CI job time. `libmpv-2.dll` must also be bundled into the NSIS
installer via `tauri.conf.json`'s resources.
### Verified build mechanics
The cross-compile path was tested hands-on from Linux (July 2026), not inferred:
- Neither shinchiro nor zhongfly ships an `mpv.def` or MSVC `mpv.lib` — only a
MinGW `libmpv.dll.a`. (Several online sources claim otherwise; they are wrong.)
- An MSVC-style import lib can be generated locally with LLVM tools only:
`llvm-readobj --coff-exports libmpv-2.dll` → synthesize `mpv.def`
`llvm-dlltool -m i386:x86-64 -d mpv.def -l mpv.lib`. `llvm-lib /def:` produces a
byte-identical result.
- A real `lld-link` link against that import lib **succeeds**, and the resulting
import table resolves `mpv_client_api_version` from `libmpv-2.dll`. `lld-link`
is the linker `cargo-xwin` uses, so this is the load-bearing step.
- Linking directly against the shipped MinGW `libmpv.dll.a` **also** succeeds, so
def-generation may be skippable — but that relies on lld's GNU-archive
tolerance rather than a documented contract. Keep `llvm-dlltool` as the
fallback.
- MinGW origin is not an ABI problem: libmpv exports a pure C ABI, and the x86-64
Windows calling convention is platform-defined. The upstream note that MSVC
cannot *build* mpv is frequently misread as "MSVC cannot *link* libmpv" — that
is not what it says.
- 🔴 Never free/realloc across the DLL boundary — use `mpv_free`.
Build wiring is ordinary: `cargo:rustc-link-lib=dylib=mpv` plus
`cargo:rustc-link-search`. Nothing about libmpv conflicts with `cargo-xwin`.
### Size and shipping
Measured uncompressed: **93 MiB** (zhongfly `mpv-dev-lgpl-x86_64`) vs **112 MiB**
(shinchiro, full GPL build); ~2630 MB compressed in the `.7z`.
**Ship the zhongfly LGPL build** — smaller, and there is no reason to pull the
GPL variant in for an audio-only use.
Import-table inspection confirms **no companion DLLs are needed**: every
dependency is a system DLL (`KERNEL32`, `USER32`, `d2d1`, `DWrite`, `OPENGL32`,
`vulkan-1`, UCRT `api-ms-win-*`). One file to bundle.
93 MiB is still substantial against a Tauri app's usual few MB. Since we use mpv
audio-only, investigate whether a pruned build (no video decoders, no libplacebo)
is worth producing for the builder image — but treat that as an optimization,
not a blocker.
## Out of scope
- Windows *video*. Stays in WebView2 + hls.js — it works and has ABR.
- Crossfade (UR-031/DR-034) — not implemented anywhere; needs its own spec.
- Replacing `WebviewAudioBackend` for macOS.
- MPRIS/SMTC media-key integration — worth a follow-up, not this spec.
## Acceptance criteria
- [ ] Windows build produces a `MpvBackend`-backed player; `backend-init-failed` is emitted (not a crash) if libmpv is unavailable.
- [ ] Volume control works from the UI — the current hard gap.
- [ ] EQ, normalization, and gapless audibly take effect on Windows.
- [ ] Position/state originate in Rust; the `<audio>` element is no longer in the audio path.
- [ ] Seek, next/previous, and queue advance work; sleep timer stops playback.
- [ ] `libmpv-2.dll` ships in the NSIS installer and the app runs on a clean Windows VM with no mpv installed.
- [ ] Builder image carries the Windows libmpv artefacts; **no toolchain install added to any CI step**.
- [ ] `bun run check`, `bun run test`, `bun run check:boundary` pass.
- [ ] `cargo fmt` clean, `cargo clippy` clean, `bun run test:rust` passes.
- [ ] New requirement-implementing code carries `// TRACES:` comments.
## Testing
**Rust**: the existing `mpv_backend_test.rs` and the `build_af_filter` /
`normalize_filter_entry` / `eq_filter_entries` unit tests already cover the
filter-graph logic and are platform-independent — they should pass unchanged
under a Windows `cargo check`/test. Add a test asserting `detect_audio_system()`
returns `wasapi` under `cfg(windows)`.
**Manual, on Windows**: volume, EQ preset change, normalization toggle, gapless
between two tracks, seek, queue advance, sleep timer. Then the packaging test —
install the NSIS output on a clean VM and confirm it launches and plays.
Per CLAUDE.md, the volume gap is a *bug fix*: write a failing test for
"`set_volume` reaches the backend" before implementing.
## TRACES
- Windows `MpvBackend` construction in `create_player_backend``// TRACES: UR-003 | IR-030`
- `detect_audio_system` Windows branch → `IR-030`
- Existing `set_audio_settings` gains Windows coverage → `UR-027, UR-032, UR-033 | DR-030, DR-035, DR-036`
- Allocate **IR-030** in `requirements.md` ("libmpv integration for Windows audio playback").
## Notes for the implementer
- Do this **after** [libmpv2-migration.md](libmpv2-migration.md) — porting the
current dead `libmpv` git pin to a second platform would double the migration
work.
- `libmpv2` has broken its API in every major release (4.0 removed command
helpers, 5.0 removed `mpv_node`, 6.0 changed `RenderContext` ownership). Pin an
exact version.
- Only the `render`-feature parts of `libmpv2` concern video; audio-only use does
not need it, and disabling the default `render` feature may shrink the build.
- A parallel Claude session may be active — `git diff` first.
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# Requirement Traceability CI/CD Pipeline
This document explains the automated requirement traceability validation system for JellyTau.
## Overview
The CI/CD pipeline automatically validates that code changes are properly traced to requirements. This ensures:
- ✅ Requirements are implemented with clear traceability
- ✅ No requirement coverage regressions
- ✅ Code changes are linked to specific requirements
- ✅ Quality metrics are tracked over time
## Gitea Actions Workflows
Traceability validation lives in `.gitea/workflows/traceability-check.yml`:
- ✅ Automatic trace extraction
- ✅ Coverage validation against minimum threshold (88%, ratcheted)
- ✅ Modified file checking
- ✅ Artifact preservation
- ✅ Summary reports
**Runs on:** Every push and pull request to `master`/`main`/`develop`
A second workflow, `traceability.yml`, previously duplicated this one as a
"GitHub-compatible alternative". It was removed: CI here is Gitea Actions, and
its only unique step (PR comments via `actions/github-script`) depended on the
GitHub REST client, which Gitea does not provide. To add PR comments, post to
Gitea's `/api/v1/repos/{owner}/{repo}/issues/{index}/comments` from
`traceability-check.yml` rather than reviving the old file.
## What Gets Validated
### 1. Trace Extraction
```bash
bun run traces:json > traces-report.json
```
Extracts all TRACES comments from:
- TypeScript files (`src/**/*.ts`)
- Svelte components (`src/**/*.svelte`)
- Rust code (`src-tauri/src/**/*.rs`)
- Test files
### 2. Coverage Thresholds
The workflow checks:
- **Minimum overall coverage:** 88% (`MIN_THRESHOLD`)
Denominators are **derived from `docs/requirements.md` at run time** — they are
never hardcoded here or in the workflow. Run `bun run traces:coverage` for the
current per-type breakdown; any number written into this document is a snapshot
that will drift.
> **Why this matters.** The workflow used to divide by frozen literals
> (UR/39, IR/24, DR/48, JA/3, total 114) while `requirements.md` had grown past
> 200. It reported **158%** coverage, so the 50% threshold was unreachable and
> the job could not fail regardless of how far coverage dropped. See
> The fix derives the denominators from `requirements.md` at run time.
Coverage is the *intersection* of traced and defined IDs: an ID that appears in
a `TRACES:` comment but is not defined in `requirements.md` is reported as
**orphaned** and does not count toward coverage. UT/IT test identifiers are a
separate taxonomy and are excluded entirely.
The workflow **fails** and blocks merge if coverage drops below the threshold —
or if it computes above 100%, which can only mean the gate is miscounting.
#### Ratchet policy
`MIN_THRESHOLD` **only ever goes up.** It is deliberately set a few points below
the coverage actually achieved (88 against a real ~90%), so a genuine regression
trips it. It previously sat at 50 while true coverage was 86%: nearly half the
matrix could have rotted before CI objected. It was ratcheted 50 → 82 when that
was found, and 82 → 88 once coverage had held above 88% for several releases.
When coverage rises durably, raise the threshold to just under the new figure.
**Never lower it to make a red build pass** — add the missing TRACES comments
instead. The same number lives in `MIN_COVERAGE_PERCENT` in
`scripts/extract-traces.ts` (so `bun run traces:coverage` gates locally on the
same bar); `scripts/extract-traces.test.ts` fails if the two drift apart.
### 2b. Dangling requirement IDs
```bash
bun run traces:validate
```
Every ID named by a `TRACES:` comment must be defined as a table row in
`docs/requirements.md`. The extractor used to accept any well-formed ID
silently, so a typo or a rename that missed a call site passed unnoticed —
`DR-189` and `UT-188` were referenced from three source files, defined nowhere,
for months.
This check spans **all six** ID types (UR/IR/DR/JA/UT/IT), unlike the coverage
`orphaned` list above, which considers only the four requirement types so that
UT/IT noise cannot bury a real typo in the ratio's reporting. The workflow step
**fails the build** on any dangling ID and prints each offender with the files
that reference it.
### 3. Modified File Checking
On pull requests, the workflow:
1. Detects all changed TypeScript/Svelte/Rust files
2. Warns if new/modified files lack TRACES comments
3. Suggests the TRACES format for missing comments
## How to Add Traces to New Code
When you add new code or modify existing code, include TRACES comments:
### TypeScript/Svelte Example
```typescript
// TRACES: UR-005, UR-026 | DR-029
export function handlePlayback() {
// Implementation...
}
```
### Rust Example
```rust
/// TRACES: UR-005 | DR-001
pub fn player_state_changed(state: PlayerState) {
// Implementation...
}
```
### Test Example
```rust
// TRACES: UR-005 | DR-001 | UT-026, UT-027
#[cfg(test)]
mod tests {
// Tests...
}
```
## TRACES Format
```
TRACES: [UR-###, ...] | [IR-###, ...] | [DR-###, ...] | [JA-###, ...]
```
- `UR-###` - User Requirements (features users see)
- `IR-###` - Integration Requirements (API/platform integration)
- `DR-###` - Development Requirements (internal architecture)
- `JA-###` - Jellyfin API Requirements (Jellyfin API usage)
**Examples:**
- `// TRACES: UR-005` - Single requirement
- `// TRACES: UR-005, UR-026` - Multiple of same type
- `// TRACES: UR-005 | DR-029` - Multiple types
- `// TRACES: UR-005, UR-026 | DR-001, DR-029 | UT-001` - Complex
## Workflow Behavior
### On Push to Main Branch
1. ✅ Extracts all traces from code
2. ✅ Validates coverage is >= 88%
3. ✅ Generates full traceability report
4. ✅ Saves report as artifact
### On Pull Request
1. ✅ Extracts all traces
2. ✅ Validates coverage >= 88%
3. ✅ Checks modified files for TRACES
4. ✅ Warns if new code lacks TRACES
5. ✅ Suggests proper format
6. ✅ Generates report artifact
### Failure Scenarios
The workflow **fails** (blocks merge) if:
- Coverage drops below 88%
- A `TRACES:` comment names an ID `docs/requirements.md` does not define
- JSON extraction fails
- Invalid trace format
The workflow **warns** (but doesn't block) if:
- New files lack TRACES comments
- Coverage drops (but still above threshold)
## Viewing Reports
### In Gitea Actions UI
1. Go to **Actions** tab
2. Click the **Traceability Validation** workflow run
3. Download **traceability-reports** artifact
4. View:
- `traces-report.json` - Raw trace data
- `docs/traceability.md` - Formatted report
### Locally
```bash
# Extract current traces
bun run traces:json | jq '.byType'
# Generate full report
bun run traces:markdown
cat docs/traceability.md
```
## Coverage Goals
### Current Status
Run `bun run traces:coverage` — it prints the live figure and exits non-zero
below threshold. Numbers are deliberately not pinned here; the previous snapshot
in this section (51%, 56/114) was stale by roughly 100 requirements and was what
made the broken CI arithmetic look plausible for so long.
As of August 2026 overall coverage is ~90%.
### Targets
- **Short term** (Sprint): Maintain ≥88% overall (the current ratchet)
- **Medium term** (Month): Hold above 90% and ratchet the gate to match
- **Long term** (Release): Reach 95% coverage with focus on:
- IR requirements (API clients)
- JA requirements (Jellyfin API endpoints)
- Remaining UR/DR requirements
## Improving Coverage
### For Missing User Requirements (UR)
1. Review [README.md](../README.md) for unimplemented features
2. Add TRACES to code that implements them
3. Focus on high-priority features (High/Medium priority)
### For Missing Integration Requirements (IR)
1. Add TRACES to Jellyfin API client methods
2. Add TRACES to platform-specific backends (Android/Linux)
3. Link to corresponding Jellyfin API endpoints
### For Missing Development Requirements (DR)
1. Add TRACES to UI components in `src/lib/components/`
2. Add TRACES to composables in `src/lib/composables/`
3. Add TRACES to player backend in `src-tauri/src/player/`
### For Jellyfin API Requirements (JA)
1. Add TRACES to Jellyfin API wrapper methods
2. Document which endpoints map to which requirements
3. Link to Jellyfin API documentation
## Example PR Checklist
When submitting a pull request:
- [ ] All new code has TRACES comments linking to requirements
- [ ] TRACES format is correct: `// TRACES: UR-001 | DR-002`
- [ ] Workflow passes (coverage ≥ 88%)
- [ ] No coverage regressions
- [ ] Artifact traceability report was generated
## Troubleshooting
### "Coverage below minimum threshold"
**Problem:** Workflow fails with coverage < 88%
**Solution:**
1. Run `bun run traces:json` locally
2. Check which requirements are traced
3. Add TRACES to untraced code sections
4. Re-run extraction to verify
### "New files without TRACES"
**Problem:** Workflow warns about new files lacking TRACES
**Solution:**
1. Add TRACES comments to all new code
2. Format: `// TRACES: UR-001 | DR-002`
3. Map code to specific requirements from README.md
4. Re-push
### "Invalid JSON format"
**Problem:** Trace extraction produces invalid JSON
**Solution:**
1. Check for malformed TRACES comments
2. Run locally: `bun run traces:json`
3. Look for parsing errors
4. Fix and retry
## Integration with Development
### Before Committing
```bash
# Check your traces
bun run traces:json | jq '.byType'
# Regenerate report
bun run traces:markdown
# Verify traces syntax
grep "TRACES:" src/**/*.ts src/**/*.rs
```
### In Your IDE
Add a file watcher to regenerate traces on save:
```json
{
"fileWatcher.watchPatterns": [
"src/**/*.ts",
"src/**/*.svelte",
"src-tauri/src/**/*.rs"
],
"fileWatcher.command": "bun run traces:markdown"
}
```
### Git Hooks
Add a pre-push hook to validate traces:
```bash
#!/bin/bash
# .git/hooks/pre-push
bun run traces:json > /dev/null
if [ $? -ne 0 ]; then
echo "❌ Invalid TRACES format"
exit 1
fi
```
## References
- [Extract Traces Script](../scripts/README.md#extract-tracests)
- [Requirements Specification](../README.md#requirements-specification)
- [Traceability Matrix](./traceability.md)
- [Gitea Actions Documentation](https://docs.gitea.io/en-us/actions/)
## Support
For issues or questions:
1. Check this document
2. Review example traces in `src/lib/stores/`
3. Check existing TRACES comments for format
4. Review workflow logs in Gitea Actions
---
**Last Updated:** 2026-02-13
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# TRACES Quick Reference Guide
## What are TRACES?
TRACES are requirement identifiers embedded in code comments to track which requirements are implemented where.
Format: `// TRACES: UR-001, UR-002 | DR-003`
## Quick Examples
### TypeScript
```typescript
// TRACES: UR-005, UR-026 | DR-029
export function handlePlayback() { }
/**
* Resume playback from saved position
* TRACES: UR-019 | DR-022
*/
export async function resumePlayback(itemId: string) { }
```
### Svelte
```svelte
<!-- TRACES: UR-007, UR-008 | DR-007 -->
<script>
export let items = [];
</script>
```
### Rust
```rust
/// TRACES: UR-005 | DR-001
pub enum PlayerState { ... }
#[test]
fn test_queue_next() {
// TRACES: UR-005 | DR-005 | UT-003
}
```
## Requirement Types
| Type | Meaning | Example |
|------|---------|---------|
| **UR** | User Requirement | UR-005: Control media playback |
| **IR** | Integration Requirement | IR-003: LibMPV integration |
| **DR** | Development Requirement | DR-001: Player state machine |
| **JA** | Jellyfin API Requirement | JA-007: Get playback info |
| **UT** | Unit Test | UT-001: Player state transitions |
| **IT** | Integration Test | IT-003: Audio playback via libmpv |
## Where to Find Requirements
1. **User Requirements (UR):** [requirements.md](requirements.md#1-user-requirements)
2. **Integration Requirements (IR):** [requirements.md](requirements.md#21-integration-requirements)
3. **Development Requirements (DR):** [requirements.md](requirements.md#23-development-requirements)
4. **Jellyfin API (JA):** [requirements.md](requirements.md#22-jellyfin-api-requirements)
## How to Add TRACES
### Step 1: Find the Requirement
Look up the requirement in README.md or the traceability matrix.
Example: `UR-005: Control media playback (pause, play, skip, scrub)`
### Step 2: Add Comment
Add TRACES comment at the top of the function/type/module:
```typescript
// TRACES: UR-005
export async function playMedia(itemId: string) {
// Implementation
}
```
### Step 3: Run Extraction
Verify the trace is captured:
```bash
bun run traces:json | jq '.requirements | keys | grep "UR-005"'
```
## Common Patterns
### Single Requirement
```typescript
// TRACES: UR-005
function handlePlay() { }
```
### Multiple Requirements, Same Type
```typescript
// TRACES: UR-005, UR-026, UR-019
function handlePlaybackState() { }
```
### Multiple Types
```typescript
// TRACES: UR-005, UR-026 | DR-029
function autoplayNextEpisode() { }
```
### Test Coverage
```typescript
// TRACES: UR-005 | UT-001
#[test]
fn test_player_state_transition() { }
```
### Modules/Files
```typescript
/**
* Player event handling
* TRACES: UR-005, UR-019, UR-023 | DR-001, DR-028
*/
```
## Validation
### Check Your Changes
```bash
# View current coverage
bun run traces:json | jq '.byType'
# Generate full report
bun run traces:markdown
# Check specific requirement
bun run traces:json | jq '.requirements."UR-005"'
```
### Before Committing
1. Ensure all new code has TRACES
2. Format is correct: `// TRACES: ...`
3. Requirements exist in `docs/requirements.md``bun run traces:validate`
4. No typos in requirement IDs (same command catches them)
## CI/CD Validation
The workflow automatically checks:
- ✅ Coverage stays >= 88% (a ratchet — raise it, never lower it)
- ✅ Every traced ID is defined in `docs/requirements.md`
- ✅ New files have TRACES
- ✅ JSON format is valid
- ✅ Reports are generated
See [traceability-ci.md](traceability-ci.md) for details.
## Tips & Tricks
### Find Related Code
```bash
# Find all code tracing to UR-005
bun run traces:json | jq '.requirements."UR-005"'
# List all tests
bun run traces:json | jq '.requirements | keys | map(select(startswith("UT")))'
```
### Update Your Editor
**VS Code:**
```json
{
"editor.wordBasedSuggestions": false,
"editor.suggest.custom": [
{
"name": "TRACES Format",
"insertText": "// TRACES: $1",
"insertTextRules": "InsertAsSnippet"
}
]
}
```
### Find Untraced Code
```bash
# Files modified without TRACES
git diff --name-only | xargs grep -L "TRACES:" | head -10
```
## FAQ
**Q: Do I need TRACES on every function?**
A: Only for code that implements requirements. Internal helpers don't need TRACES.
**Q: Can I use TRACES on multiple related functions?**
A: Yes! Add at the file/module level or on individual functions.
**Q: What if code doesn't relate to any requirement?**
A: Leave it untraced. TRACES are for requirement-driven development.
**Q: How often should I regenerate reports?**
A: Automatically on push (CI/CD). Manually after changes: `bun run traces:markdown`
**Q: Can I trace to requirements that aren't implemented yet?**
A: Yes! TRACES show your implementation plan.
## See Also
- [Full Traceability Matrix](traceability.md)
- [CI/CD Pipeline Guide](traceability-ci.md)
- [Requirements Specification](requirements.md)
- [Extraction Script](../scripts/README.md#extract-tracests)
---
**Quick Start:**
1. Add `// TRACES: UR-XXX` to new code
2. Run `bun run traces:markdown`
3. Check `docs/traceability.md`
4. Submit PR - workflow validates automatically!
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// ESLint flat config for the JellyTau frontend (Svelte 5 + TypeScript strict).
//
// TRACES: | DR-205
//
// Scope: `src/` (the presentation layer), `scripts/` (build tooling), and the
// root config files. The Rust backend is linted by clippy, not by this config.
//
// Formatting is NOT ESLint's job here — `eslint-config-prettier` is applied last
// and switches off every stylistic rule that would fight `prettier`. Run
// `bun run format` / `bun run format:check` for layout.
import js from "@eslint/js";
import ts from "typescript-eslint";
import svelte from "eslint-plugin-svelte";
import globals from "globals";
import prettier from "eslint-config-prettier";
import svelteConfig from "./svelte.config.js";
export default ts.config(
{
// Kept in one place so `npx eslint .` and editor integrations agree.
ignores: [
"node_modules/",
".svelte-kit/",
// Scratch worktrees (git-ignored) hold full checkouts of this repo,
// including their own generated .svelte-kit trees. Without this, `eslint .`
// lints every in-flight branch and reports its generated code as ours.
".claude/",
"build/",
"dist/",
"coverage/",
"package/",
"src-tauri/",
// Generated by tauri-specta on every Rust build — never hand-edited, and
// its shape is dictated by the Rust command definitions.
"src/lib/api/bindings.ts",
],
},
js.configs.recommended,
...ts.configs.recommended,
...svelte.configs.recommended,
prettier,
...svelte.configs.prettier,
{
languageOptions: {
globals: {
...globals.browser,
...globals.es2021,
},
},
rules: {
// The logger-facade migration this rule was waiting on is done: the ~468
// `console.*` calls that used to live in `src/` are gone, replaced by
// `createLogger(...)` from src/lib/utils/logger.ts (DR-204), which is now
// the single sink. Nothing is allowed through — not even warn/error —
// because the facade's own `warn`/`error` levels are always emitted, so a
// raw call has no capability the facade lacks. It only loses the scope tag
// and the runtime level control.
//
// The sink itself is exempted below, as are tests (a test that asserts on
// logging has to be able to talk about `console`).
"no-console": "error",
// Unused values are a real signal, but `_`-prefixed args are the
// established way to say "this parameter exists for the signature".
//
// ⚠️ warn, not error: the tree carries ~94 genuinely dead bindings (stale
// imports, `$state` left over from refactors, unused `catch (e)`). Every
// one is a real finding, but fixing them here would mean ~50 unrelated
// files in this tooling commit. Clear the backlog, then promote to
// "error".
"@typescript-eslint/no-unused-vars": [
"warn",
{
argsIgnorePattern: "^_",
varsIgnorePattern: "^_",
caughtErrorsIgnorePattern: "^_",
destructuredArrayIgnorePattern: "^_",
},
],
// Warn-only rules: each flags something real, but the existing tree has
// more instances than can be fixed without swamping unrelated diffs.
// Drive these to zero and promote them to "error" — do not delete them.
//
// `any` at the Tauri IPC boundary, mostly in code predating the
// tauri-specta bindings (~25 sites outside tests).
"@typescript-eslint/no-explicit-any": "warn",
// Empty catch/if bodies that swallow an error.
"no-empty": ["warn", { allowEmptyCatch: true }],
// Prefer `import type` so type-only imports are erased cleanly by the
// bundler instead of pulling a module in at run time.
"@typescript-eslint/consistent-type-imports": "off",
// Not applicable to this app (~130 hits, all no-ops). SvelteKit's
// `resolve()` exists so hrefs keep working under a non-empty
// `kit.paths.base`; JellyTau is an adapter-static SPA served from the
// Tauri webview root and svelte.config.js sets no `base`. Re-enable this
// the day a base path is introduced — the rule is otherwise correct.
// (Declared here, not in the *.svelte block: `goto()` is also called from
// plain .ts modules such as src/lib/utils/navigation.ts.)
"svelte/no-navigation-without-resolve": "off",
},
},
{
// Svelte components: the parser needs the project's svelte.config.js so it
// resolves preprocessors and Svelte 5 runes the same way the build does.
files: ["**/*.svelte", "**/*.svelte.ts", "**/*.svelte.js"],
languageOptions: {
parserOptions: {
parser: ts.parser,
svelteConfig,
},
},
rules: {
// Warn-only — real findings, but each fix is a behavioural refactor that
// does not belong in a tooling commit:
// require-each-key keyed {#each} changes DOM reuse semantics
// prefer-svelte-reactivity Set/Map -> SvelteSet/SvelteMap changes
// reactivity, not just syntax
// prefer-writable-derived $state + $effect -> writable $derived
// no-at-html-tags {@html} sites need an XSS review each
"svelte/require-each-key": "warn",
"svelte/prefer-svelte-reactivity": "warn",
"svelte/prefer-writable-derived": "warn",
"svelte/no-at-html-tags": "warn",
// Warn-only: this rule cannot see the Svelte *compiler's* warning set, so
// it reports `<!-- svelte-ignore a11y_… -->` as unused when the compiler
// may still be emitting the warning it suppresses. Verify against a real
// `bun run check` before deleting any of them.
"svelte/no-unused-svelte-ignore": "warn",
},
},
{
// The logging facade is the one place allowed to touch `console` — it *is*
// the sink every other module reaches it through (see the `no-console`
// comment above). `createLogger`'s `console[method](...)` dispatch is a
// computed member access, which the rule flags like any other.
files: ["src/lib/utils/logger.ts"],
rules: {
"no-console": "off",
},
},
{
// Node-side tooling: build/test scripts and root config files run under
// Bun/Node, not in the webview.
files: [
"scripts/**/*.{ts,js}",
"*.config.{ts,js}",
"*.config.*.{ts,js}",
"svelte.config.js",
"eslint.config.js",
],
languageOptions: {
globals: {
...globals.node,
},
},
rules: {
// These are command-line tools (extract-traces, release-notes, ...) whose
// stdout IS the product — `bun run traces:markdown > docs/traceability.md`
// depends on it. The logging facade is a webview concern; a CLI printing
// its result is not a stray debug statement.
"no-console": "off",
},
},
{
// Test files: vitest globals are enabled in vitest.config.ts.
files: ["**/*.{test,spec}.{ts,js}", "src/test/**/*.{ts,js}"],
languageOptions: {
globals: {
...globals.node,
...globals.vitest,
},
},
rules: {
// Tests are allowed to talk about `console` — several spy on it to assert
// what the logging facade emits, and scripts/ tooling tests capture output.
"no-console": "off",
// Test doubles legitimately use `any` for partial mocks.
"@typescript-eslint/no-explicit-any": "off",
// `vi.mock` factories are hoisted above the import graph, so a lazy
// `require()` inside one is the documented escape hatch.
"@typescript-eslint/no-require-imports": "off",
// Several tests deliberately replay a production assignment sequence
// (`currentStreamUrl = newStreamUrl; hasSeeked = false;`) to document the
// `$effect` they stand in for. The "useless" write is the subject under
// test, not dead code.
"no-useless-assignment": "off",
},
},
);
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{
"version": "0.11.2",
"notes": "\n### 🐛 Fixes\n\n- **Subtitles appear on screen on Android.** Turning one on did nothing, even\n once they were loading again: the player hands finished subtitles to a view\n that draws them, and on the native Android path there was no such view — so\n every cue was decoded, delivered and dropped. There is one now, sitting over\n the picture and under the controls, following the video's shape when the\n screen turns. This was hidden behind the loading failure fixed in v0.11.1;\n with nothing to select, there had never been a cue to lose. (UR-020, UR-003 →\n DR-260)",
"pub_date": "2026-08-23T21:48:32Z",
"platforms": {
"linux-x86_64": {
"signature": "dW50cnVzdGVkIGNvbW1lbnQ6IHNpZ25hdHVyZSBmcm9tIHRhdXJpIHNlY3JldCBrZXkKUlVSczV4N1FMRVFQaXNHUmIxbjlnTzB3dXAzbmU5OG4wUXBRVmZ0Y1lPN3F5OU5DV3o1N1R2eVdFWG1BNDBaR2ZwSXptOHJtQytiTVpVTTRkbkxKR1h1QXQrQk9kdG5LS1FnPQp0cnVzdGVkIGNvbW1lbnQ6IHRpbWVzdGFtcDoxNzg3NTE4ODAwCWZpbGU6SmVsbHlUYXVfMC4xMS4yX2FtZDY0LkFwcEltYWdlCmk0UVdnbU5RZzFNdkZua1dwdFIyMUo1RTZVR200ak1RUXFZaVlrTmVlaFlTYWJvTFRMK1hHRStmSkJobHVKK0NVTW5sOGVrSWp5NVh5TjVrM096cURBPT0K",
"url": "https://gitea.tourolle.paris/dtourolle/jellytau/releases/download/v0.11.2/JellyTau_0.11.2_amd64.AppImage"
},
"windows-x86_64": {
"signature": "dW50cnVzdGVkIGNvbW1lbnQ6IHNpZ25hdHVyZSBmcm9tIHRhdXJpIHNlY3JldCBrZXkKUlVSczV4N1FMRVFQaXZibUxGcDlxNlVscTBRNVdBMlhzRDBWalI0TGhLRDJqdWhTOE5iNW5wb1dQUjdiblZVRUd4MzZJeHRVK1gwa2s0WDhwL2FYem9OY3cyZkJ6SUZVbGdzPQp0cnVzdGVkIGNvbW1lbnQ6IHRpbWVzdGFtcDoxNzg3NTE5NzkzCWZpbGU6SmVsbHlUYXVfMC4xMS4yX3g2NC1zZXR1cC5leGUKbUdQajVUeVlmNDRtM3lTUFVMYVJ5YTFBUkdXUkxNcUJhaTRBRkdSVk1NR2tCd20rYUt1OW9hcGZDbkE2R1BvRHg1SjdyRGtKZzhwK1M3ZTFaRnY0QVE9PQo=",
"url": "https://gitea.tourolle.paris/dtourolle/jellytau/releases/download/v0.11.2/JellyTau_0.11.2_x64-setup.exe"
}
}
}
-96
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{
"name": "jellytau",
"version": "0.11.2",
"description": "A cross-platform Jellyfin client built with Tauri, SvelteKit and Rust.",
"author": "Duncan Tourolle <duncan@tourolle.paris>",
"license": "MIT",
"repository": {
"type": "git",
"url": "https://gitea.tourolle.paris/dtourolle/jellytau"
},
"private": true,
"type": "module",
"packageManager": "bun@1.3.5",
"scripts": {
"dev": "vite dev",
"build": "vite build",
"preview": "vite preview",
"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
"test": "vitest run",
"test:watch": "vitest",
"test:ui": "vitest --ui",
"test:coverage": "vitest run --coverage",
"test:all": "./scripts/test-all.sh",
"test:rust": "./scripts/test-rust.sh",
"lint": "eslint .",
"lint:fix": "eslint . --fix",
"format": "prettier --write .",
"format:check": "prettier --check .",
"check:boundary": "bash scripts/check-frontend-boundary.sh",
"check:links": "bash scripts/check-doc-links.sh",
"check:tooling": "bash scripts/check-tooling.sh",
"hooks:install": "./scripts/install-hooks.sh",
"android:build": "./scripts/build-android.sh",
"android:build:release": "./scripts/build-android.sh release",
"android:build:device": "./scripts/build-android.sh --device",
"android:build:release:device": "./scripts/build-android.sh release --device",
"android:build:clean": "rm -rf node_modules/.vite dist .svelte-kit .next build target src-tauri/target && bun install && bun run build",
"android:deploy": "./scripts/deploy-android.sh",
"android:dev": "./scripts/build-and-deploy.sh",
"android:check": "./scripts/check-android.sh",
"android:logs": "./scripts/logcat.sh",
"desktop:build:linux": "./scripts/build-desktop-linux.sh",
"desktop:build:arch": "./scripts/build-arch.sh",
"desktop:build:windows": "./scripts/build-windows-cross.sh",
"docker:build:linux": "docker compose run --rm desktop-linux-build",
"docker:build:arch": "docker compose run --rm arch-build",
"docker:build:windows": "docker compose run --rm windows-cross",
"clean": "./scripts/clean.sh",
"tauri": "tauri",
"traces": "bun run scripts/extract-traces.ts",
"traces:json": "bun run scripts/extract-traces.ts --format json",
"traces:markdown": "bun run scripts/extract-traces.ts --format markdown > docs/traceability.md",
"traces:coverage": "bun run scripts/extract-traces.ts --format coverage",
"traces:validate": "bun run scripts/extract-traces.ts --format validate",
"release:notes": "bun run scripts/release-notes.ts",
"test:player": "./scripts/test-player-conformance.sh",
"test:player:android": "./scripts/test-player-conformance.sh android"
},
"dependencies": {
"@tauri-apps/api": "^2.11.1",
"@tauri-apps/plugin-log": "2.9.0",
"@tauri-apps/plugin-opener": "^2.5.4",
"@tauri-apps/plugin-os": "^2.3.2",
"@tauri-apps/plugin-process": "^2.3.1",
"@tauri-apps/plugin-updater": "2.10.1",
"hls.js": "^1.6.15",
"svelte-dnd-action": "^0.9.69"
},
"devDependencies": {
"@eslint/js": "^10.0.1",
"@sveltejs/adapter-static": "^3.0.6",
"@sveltejs/kit": "^2.9.0",
"@sveltejs/vite-plugin-svelte": "^6.2.4",
"@tailwindcss/vite": "^4.1.18",
"@tauri-apps/cli": "^2.11.4",
"@testing-library/svelte": "^5.3.1",
"@vitest/coverage-v8": "^4.0.18",
"@vitest/ui": "^4.0.16",
"eslint": "^10.8.1",
"eslint-config-prettier": "^10.1.8",
"eslint-plugin-svelte": "^3.23.0",
"globals": "^17.11.0",
"happy-dom": "^20.0.11",
"jsdom": "^27.4.0",
"prettier": "^3.9.6",
"prettier-plugin-svelte": "^4.1.1",
"svelte": "^5.47.1",
"svelte-check": "^4.0.0",
"tailwindcss": "^4.1.18",
"typescript": "~5.6.2",
"typescript-eslint": "^8.67.0",
"vite": "^6.0.3",
"vitest": "^4.1.10"
}
}
-95
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@@ -1,95 +0,0 @@
# Maintainer: Duncan Tourolle <duncan@tourolle.paris>
#
# JellyTau — a cross-platform Jellyfin client (Tauri + SvelteKit).
#
# This PKGBUILD builds from the local source tree by default (see the `dev`
# convenience below), which is what scripts/build-arch.sh uses inside the Arch
# Docker stage. For AUR distribution, replace the `source=()` line with a release
# tarball/VCS URL and drop the local-copy prepare() step.
pkgname=jellytau
pkgver=0.10.1
pkgrel=1
pkgdesc="A cross-platform Jellyfin client"
arch=('x86_64')
url="https://gitea.tourolle.paris/dtourolle/jellytau"
license=('MIT')
# Runtime: libmpv for audio, webkit2gtk for the webview + HTML5 transcoded video.
depends=('webkit2gtk-4.1' 'mpv' 'gtk3' 'libayatana-appindicator')
makedepends=('rust' 'cargo' 'bun' 'nodejs' 'pkgconf' 'libsoup3')
options=('!strip' '!lto')
# Populated from the working tree by scripts/build-arch.sh (SRC env var).
_srcdir="${JELLYTAU_SRC:-$startdir/../..}"
build() {
cd "$_srcdir"
export CARGO_HOME="${CARGO_HOME:-$srcdir/cargo-home}"
bun install --frozen-lockfile || bun install
bun run build
# Only the raw binary is needed; packaging is done in package() below so we
# control the Arch filesystem layout ourselves rather than via tauri-bundler.
#
# 🔴 `tauri/custom-protocol` is not optional. `tauri build` passes it for you;
# a bare `cargo build` does not, and without it Tauri loads the frontend from
# `devUrl` rather than the assets embedded from `frontendDist`. The result
# builds and installs cleanly and then cannot load its own UI. check() guards
# this.
(cd src-tauri && cargo build --release --locked --features tauri/custom-protocol)
}
check() {
cd "$_srcdir"
# A Tauri binary built without `custom-protocol` does not embed the frontend;
# it serves it from `devUrl` (http://localhost:1420) instead. It compiles,
# links and installs perfectly, then launches into "Could not connect to
# localhost: Connection refused" — which is what this package did for its
# entire existence, because `tauri build` adds that feature for you and a bare
# `cargo build` does not.
#
# Test for the *assets*, not for the dev URL: `devUrl` is part of the config
# blob that generate_context!() embeds either way, so its presence proves
# nothing. A content-hashed filename from the vite build can only be in the
# binary if the bundle was embedded — the with-feature binary is ~400 KB
# larger for exactly this reason.
local _binary="src-tauri/target/release/jellytau"
local _asset
_asset="$(basename "$(ls -1 build/_app/immutable/entry/*.js | head -n1)")"
if [ -z "$_asset" ]; then
echo "==> ERROR: no frontend build found — 'bun run build' did not produce build/_app." >&2
return 1
fi
if ! grep -qa "$_asset" "$_binary"; then
echo "==> ERROR: the frontend bundle is not embedded in the binary." >&2
echo " Build with --features tauri/custom-protocol, or the packaged app" >&2
echo " will start up unable to load its own UI." >&2
return 1
fi
}
package() {
cd "$_srcdir"
install -Dm755 "src-tauri/target/release/jellytau" \
"$pkgdir/usr/bin/jellytau"
# Desktop entry
install -Dm644 "packaging/arch/jellytau.desktop" \
"$pkgdir/usr/share/applications/jellytau.desktop"
# MIT is not in /usr/share/licenses/common, so Arch packaging requires the
# licence text to ship with the package.
install -Dm644 "LICENSE" \
"$pkgdir/usr/share/licenses/$pkgname/LICENSE"
# Icons (hicolor)
install -Dm644 "src-tauri/icons/32x32.png" \
"$pkgdir/usr/share/icons/hicolor/32x32/apps/jellytau.png"
install -Dm644 "src-tauri/icons/128x128.png" \
"$pkgdir/usr/share/icons/hicolor/128x128/apps/jellytau.png"
install -Dm644 "src-tauri/icons/128x128@2x.png" \
"$pkgdir/usr/share/icons/hicolor/256x256/apps/jellytau.png"
}
-9
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[Desktop Entry]
Type=Application
Name=JellyTau
Comment=A cross-platform Jellyfin client
Exec=jellytau
Icon=jellytau
Terminal=false
Categories=AudioVideo;Player;Audio;Video;
StartupWMClass=jellytau
-215
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# Development Scripts
Collection of utility scripts for building, testing, and deploying JellyTau.
## Testing Scripts
### `test-all.sh`
Run all tests (frontend + Rust backend).
```bash
./scripts/test-all.sh
```
### `test-frontend.sh`
Run frontend tests only.
```bash
./scripts/test-frontend.sh # Single pass (same as `bun run test`)
./scripts/test-frontend.sh --watch # Watch mode
./scripts/test-frontend.sh --ui # Open UI
```
`bun run test` is `vitest run` — one pass, exit code, done. It used to be bare
`vitest`, which parked in watch mode; CLAUDE.md's "Before Committing" list tells
people to run it, so it had to terminate. The interactive modes moved to their
own entry points:
| Command | Runs |
|---------|------|
| `bun run test` | `vitest run` — single pass |
| `bun run test:watch` | `vitest` — watch mode |
| `bun run test:ui` | `vitest --ui` |
| `bun run test:coverage` | `vitest run --coverage` |
`test-frontend.sh` forwards any extra arguments to vitest and switches to the
long-running form automatically when it sees `--watch`, `-w`, or `--ui`.
### `test-rust.sh`
Run Rust tests only.
```bash
./scripts/test-rust.sh # Run all tests
./scripts/test-rust.sh -- --nocapture # Show println! output
```
## Android Scripts
### `build-android.sh`
Build the Android APK.
```bash
./scripts/build-android.sh # Debug build
./scripts/build-android.sh release # Release build
```
### `deploy-android.sh`
Install APK on connected Android device.
```bash
./scripts/deploy-android.sh # Deploy debug APK
./scripts/deploy-android.sh release # Deploy release APK
```
### `build-and-deploy.sh`
Build and deploy in one command.
```bash
./scripts/build-and-deploy.sh # Build + deploy debug
./scripts/build-and-deploy.sh release # Build + deploy release
```
### `check-android.sh`
Check Android development environment setup.
```bash
./scripts/check-android.sh
```
### `logcat.sh`
View Android logcat filtered for the app.
```bash
./scripts/logcat.sh
```
## Traceability & Documentation
### `extract-traces.ts`
Extract requirement IDs (TRACES) from source code and generate a traceability matrix mapping requirements to implementation locations.
```bash
bun run traces # Generate markdown report
bun run traces:json # Generate JSON report
bun run traces:markdown # Save to docs/traceability.md
bun run traces:coverage # Coverage gate — exits non-zero below the ratchet
bun run traces:validate # Dangling-ID gate — every traced ID must be defined
```
The script scans all TypeScript, Svelte, and Rust files (plus `scripts/`)
looking for `TRACES:` comments and generates a comprehensive mapping of:
- Which code files implement which requirements
- Line numbers and code context
- Coverage summary by requirement type (UR, IR, DR, JA)
**`bun run traces:coverage` is the supported way to check requirement coverage
locally** — it runs the same computation CI does. Coverage denominators are
derived from `docs/requirements.md` at run time; they are never hardcoded. An ID
that appears in a `TRACES:` comment but is not defined in `requirements.md` is
reported as *orphaned* and does not count toward coverage (see DR-093).
**`bun run traces:validate` is the dangling-ID gate.** It fails if any traced ID
— including `UT`/`IT`, which coverage deliberately ignores — is not defined as a
table row in `requirements.md`, printing each offender with the files that
reference it. Without it the extractor accepted any well-formed ID silently, so
typos and renames that missed a call site went unreported for months.
> **Removed:** `check-req-coverage.sh`, `check-test-coverage.sh`, and
> `find-req-implementations.sh` were deleted in July 2026. They read an
> undocumented `@req:` tag convention parallel to `TRACES:`, grepped `src-tauri/`
> unscoped (hanging on ~40 GB of `target/` artifacts), and in one case reported
> "all requirements implemented" from an empty result set. `extract-traces.ts` is
> the single source of truth for requirement coverage. See
> it reported `Total Requirements: 1` and then "All requirements have
> implementations!". Nothing referenced it. Use `bun run traces:coverage`.
Example TRACES comment in code:
```typescript
// TRACES: UR-005, UR-026 | DR-029
function handlePlayback() { ... }
```
See [docs/traceability.md](../docs/traceability.md) for the latest generated mapping.
### CI/CD Validation
The traceability system is integrated with Gitea Actions CI/CD:
- Automatically validates TRACES on every push and pull request
- Enforces a minimum coverage threshold (a ratchet: raise it, never lower it)
- Fails on dangling IDs — traced but undefined in `requirements.md`
- Warns if new code lacks TRACES comments
- Generates traceability reports automatically
For details, see:
- [Traceability CI Guide](../docs/traceability-ci.md) - Full CI/CD documentation
- [TRACES Quick Reference](../docs/traces-quick-ref.md) - Quick guide for adding TRACES
## Linting & Formatting
There is no script wrapper for these — they are plain package.json entries:
```bash
bun run lint # eslint .
bun run lint:fix # eslint . --fix
bun run format # prettier --write .
bun run format:check # prettier --check .
```
Config lives in `eslint.config.js` (flat config: typescript-eslint +
eslint-plugin-svelte, tuned for Svelte 5 and TS `strict`), `.prettierrc`, and
`.prettierignore`. `src/lib/api/bindings.ts` is excluded from both — it is
generated by tauri-specta on every Rust build.
`bun run lint` is currently **error-clean but not warning-clean**: several rules
are deliberately set to `warn` because the existing tree has more hits than a
tooling change should touch (unused bindings, `any` at the IPC boundary, unkeyed
`{#each}`). Each one is annotated in `eslint.config.js` with why, and the
intended end state is `error`. Drive them down; do not delete them.
`no-console` is switched **off** for now — see the note in `eslint.config.js`.
## Git Hooks
### `install-hooks.sh`
Point git at the repo's tracked hooks directory (`core.hooksPath`).
```bash
bun run hooks:install # or: ./scripts/install-hooks.sh
```
### `hooks/pre-commit`
Runs the fast half of CLAUDE.md's "Before Committing" list so it is enforced
rather than remembered:
- `bun run check` (svelte-check)
- `bun run test` (vitest, single pass)
- `scripts/check-frontend-boundary.sh`
- `cargo fmt --all -- --check`, **only when staged files touch `src-tauri/`**
`cargo clippy` and `cargo test` are deliberately *not* in the hook — minutes per
commit is how you teach people to reach for `--no-verify`. They run in CI, and
locally via `bun run test:all`.
```bash
git commit --no-verify # skip the hook for one commit
git config --unset core.hooksPath # uninstall
```
The hook skips itself during a merge, rebase, or cherry-pick, and when nothing
is staged.
## Utility Scripts
### `clean.sh`
Clean all build artifacts.
```bash
./scripts/clean.sh
```
## NPM Script Aliases
You can also run these via npm/bun:
```bash
bun run test # Frontend tests (single pass)
bun run test:all # All tests
bun run test:rust # Rust tests
bun run lint # ESLint
bun run format:check # Prettier (check only)
bun run hooks:install # Install the git hooks
bun run android:build # Build Android APK
bun run android:deploy # Deploy to device
bun run android:dev # Build + deploy debug
bun run android:check # Check environment
bun run clean # Clean artifacts
```
-87
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#!/usr/bin/env bash
set -e
echo "🚀 JellyTau Android Development Helper"
echo "======================================"
# Setup environment
echo "Setting up environment..."
source "$HOME/.cargo/env.fish" 2>/dev/null || source "$HOME/.cargo/env" || true
export ANDROID_HOME="$HOME/Android/Sdk"
export NDK_HOME="$ANDROID_HOME/ndk/$(ls $ANDROID_HOME/ndk 2>/dev/null | head -1)"
# Check prerequisites
echo -e "\n✓ Checking prerequisites..."
if ! command -v rustc &> /dev/null; then
echo "❌ Rust not found. Please install from https://rustup.rs"
exit 1
fi
if ! command -v adb &> /dev/null; then
echo "❌ ADB not found. Please install Android SDK"
exit 1
fi
if [ ! -d "$ANDROID_HOME" ]; then
echo "⚠️ ANDROID_HOME not found at $ANDROID_HOME"
echo " Please install Android SDK or update the path"
fi
# Check for connected devices
echo -e "\n📱 Connected devices:"
adb devices
# Menu
echo -e "\n📋 What would you like to do?"
echo "1) Run in development mode (hot reload)"
echo "2) Build debug APK"
echo "3) Build release APK"
echo "4) Install debug APK to device"
echo "5) Check environment"
read -p "Select option (1-5): " choice
case $choice in
1)
echo -e "\n🔨 Starting development mode..."
bun run tauri android dev
;;
2)
echo -e "\n🔨 Building debug APK..."
bun run tauri android build --debug
echo -e "\n✅ Debug APK built at:"
echo " src-tauri/gen/android/app/build/outputs/apk/debug/app-debug.apk"
;;
3)
echo -e "\n🔨 Building release APK..."
bun run tauri android build
echo -e "\n✅ Release APK built at:"
echo " src-tauri/gen/android/app/build/outputs/apk/release/"
;;
4)
APK="src-tauri/gen/android/app/build/outputs/apk/debug/app-debug.apk"
if [ -f "$APK" ]; then
echo -e "\n📲 Installing to device..."
adb install -r "$APK"
echo "✅ Installed!"
else
echo "❌ APK not found. Build it first (option 2)"
fi
;;
5)
echo -e "\n🔍 Environment Check:"
echo " Rust: $(rustc --version 2>/dev/null || echo 'Not found')"
echo " Cargo: $(cargo --version 2>/dev/null || echo 'Not found')"
echo " Bun: $(bun --version 2>/dev/null || echo 'Not found')"
echo " ADB: $(adb --version 2>/dev/null | head -1 || echo 'Not found')"
echo " ANDROID_HOME: $ANDROID_HOME"
echo " NDK_HOME: $NDK_HOME"
echo ""
echo " Rust Android targets:"
rustup target list 2>/dev/null | grep android | grep installed || echo " None installed"
;;
*)
echo "Invalid option"
exit 1
;;
esac
-23
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@@ -1,23 +0,0 @@
#!/bin/bash
# Build and deploy Android APK in one command
set -e
echo "🚀 Build and Deploy Android APK"
echo ""
# Pass all args (build type and/or --clean) through to the build script.
./scripts/build-android.sh "$@"
echo ""
# Deploy APK — forward the build type and the side-by-side flag (which decides
# which package to launch), ignoring build-only flags like --clean and --device.
DEPLOY_ARGS=("debug")
for arg in "$@"; do
case "$arg" in
debug|release) DEPLOY_ARGS[0]="$arg" ;;
--debug|--side-by-side) DEPLOY_ARGS+=("--side-by-side") ;;
esac
done
./scripts/deploy-android.sh "${DEPLOY_ARGS[@]}"
-137
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#!/bin/bash
# Build Android APK
set -e
# Source Rust environment
source "$HOME/.cargo/env.fish" 2>/dev/null || source "$HOME/.cargo/env" 2>/dev/null || true
# Set Android environment variables
export ANDROID_HOME="$HOME/Android/Sdk"
export NDK_HOME="$ANDROID_HOME/ndk/$(ls "$ANDROID_HOME/ndk" | head -1)"
echo "🤖 Building Android APK..."
echo "Android SDK: $ANDROID_HOME"
echo "NDK: $NDK_HOME"
echo ""
# Parse args: build type (debug/release) and optional --clean flag.
# By default the build is INCREMENTAL — Cargo and Vite reuse their caches.
# Pass --clean (or CLEAN=1) to wipe all caches for a from-scratch build.
#
# ABI selection: by default Tauri builds all four ABIs (arm64/arm/x86/x86_64),
# which is what a distributable universal APK needs — but for an on-device test
# it means three wasted Rust compiles. Pass --device (or ABI=aarch64) to build
# only the connected device's architecture; --abi <t> targets one explicitly.
#
# Side-by-side: the `debug` build type always installs as
# com.dtourolle.jellytau.debug ("JellyTau Debug"), so it never collides with a
# real install. `release --debug` puts a *release* build — R8-minified, exactly
# what ships — into that same slot, signed with the local debug keystore. That
# is how you validate minification (R8 stripping JNI-loaded classes has broken
# release APKs here before) without the real signing key and without
# uninstalling the app you actually use.
BUILD_TYPE="debug"
CLEAN="${CLEAN:-0}"
ABI="${ABI:-}"
SIDE_BY_SIDE="${SIDE_BY_SIDE:-0}"
next_is_abi=0
for arg in "$@"; do
if [ "$next_is_abi" = "1" ]; then
ABI="$arg"
next_is_abi=0
continue
fi
case "$arg" in
--clean) CLEAN=1 ;;
--abi) next_is_abi=1 ;;
--device) ABI="device" ;;
--debug|--side-by-side) SIDE_BY_SIDE=1 ;;
debug|release) BUILD_TYPE="$arg" ;;
esac
done
# The debug build type is side-by-side unconditionally; the flag only means
# something for a release build.
if [ "$BUILD_TYPE" = "debug" ]; then
SIDE_BY_SIDE=1
fi
# Resolve --device to the attached device's Rust target triple.
if [ "$ABI" = "device" ]; then
device_abi="$(adb shell getprop ro.product.cpu.abi 2>/dev/null | tr -d '\r\n')"
case "$device_abi" in
arm64-v8a) ABI="aarch64" ;;
armeabi-v7a) ABI="armv7" ;;
x86_64) ABI="x86_64" ;;
x86) ABI="i686" ;;
*)
echo "⚠️ Could not detect device ABI (got '${device_abi:-none}') — building all targets."
ABI=""
;;
esac
[ -n "$ABI" ] && echo "🎯 Device ABI $device_abi → building only '$ABI'"
fi
TARGET_ARGS=()
if [ -n "$ABI" ]; then
TARGET_ARGS=(--target "$ABI")
fi
# Step 0: Optionally clear build caches for a fully fresh build.
if [ "$CLEAN" = "1" ]; then
echo "🧹 Clearing build caches (clean build)..."
rm -rf node_modules/.vite dist .svelte-kit .next build target src-tauri/target 2>/dev/null || true
# `bun install`, NOT `npm install`. This is a bun project (see packageManager
# in package.json) and bun.lock is the lockfile that is committed; npm
# ignores it, re-resolves the tree from package.json alone, and writes a
# package-lock.json that .gitignore then hides.
#
# That is not cosmetic. The Tauri CLI refuses to build when a plugin's Rust
# crate and npm package differ by minor version, so the JS side is pinned
# exactly to match Cargo.lock; a re-resolve is precisely how those halves
# drift apart again. A clean build must not be able to change what gets
# installed.
bun install > /dev/null 2>&1
fi
# Step 1: Sync Android source files
echo "🔄 Syncing Android sources..."
./scripts/sync-android-sources.sh
# Step 2: Build the frontend first to avoid dev server issues
echo "🎨 Building frontend..."
bun run build
# Step 2: Build Android APK
# `--apk` is a boolean flag, NOT `--apk true`.
#
# tauri-cli took a value here until 2.10; from 2.11 it is a plain flag and the
# stray `true` is parsed as a positional argument, failing with
# "error: unexpected argument 'true' found" before the build starts. Found by
# deploying to a device after the Tauri 2.9.5 -> 2.11.5 upgrade.
if [ "$BUILD_TYPE" = "release" ] && [ "$SIDE_BY_SIDE" = "1" ]; then
# A release build in the debug slot: R8 still runs, but the applicationId is
# suffixed and the debug keystore signs it (read by build.gradle.kts from
# JT_SIDE_BY_SIDE), so the real key is not needed and it replaces any other
# .debug install cleanly. Deliberately does NOT write keystore.properties.
echo "📦 Building side-by-side release APK (com.dtourolle.jellytau.debug)..."
JT_SIDE_BY_SIDE=1 bun run tauri android build --apk "${TARGET_ARGS[@]}"
elif [ "$BUILD_TYPE" = "release" ]; then
# Configure release signing from .env (single source of truth). Must run
# after sync-android-sources.sh, since gen/android is (re)generated there.
./scripts/write-keystore-properties.sh
echo "📦 Building release APK..."
bun run tauri android build --apk "${TARGET_ARGS[@]}"
else
echo "📦 Building debug APK..."
bun run tauri android build --apk --debug "${TARGET_ARGS[@]}"
fi
echo ""
echo "✅ APK build complete!"
echo "📱 APK location: src-tauri/gen/android/app/build/outputs/apk/"
# Containerised builds run as root against a bind-mounted tree; hand the
# artifacts back to the host user. No-op when not root. See DR-213.
"$(dirname "$0")/restore-ownership.sh"
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#!/bin/bash
# Build an Arch Linux package (.pkg.tar.zst) for JellyTau via makepkg.
#
# Tauri's bundler has no pacman target (as of tauri-cli 2.9.x), so we ship a
# hand-written PKGBUILD in packaging/arch/ and build it with makepkg. This must
# run on an Arch host / the `arch-build` Docker stage — makepkg is Arch-specific
# and refuses to run as root, so run it as a non-root user with sudo for deps.
#
# Usage (typically inside the arch-build Docker stage as a non-root user):
# scripts/build-arch.sh
# OUTPUT_DIR=/app/dist scripts/build-arch.sh
set -euo pipefail
REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
cd "$REPO_ROOT/packaging/arch"
echo "🏛️ Building JellyTau Arch package"
echo "=================================="
# Point the PKGBUILD at the working tree and give cargo/bun a writable home.
export JELLYTAU_SRC="$REPO_ROOT"
export CARGO_HOME="${CARGO_HOME:-$REPO_ROOT/.cargo-arch}"
# -s installs missing deps (needs sudo/root privileges for pacman), -f overwrites.
makepkg -sf --noconfirm
echo ""
echo "✅ Built Arch package(s):"
ls -1 ./*.pkg.tar.zst
if [[ -n "${OUTPUT_DIR:-}" ]]; then
mkdir -p "$OUTPUT_DIR"
cp -v ./*.pkg.tar.zst "$OUTPUT_DIR/"
echo ""
echo "📦 Copied Arch package(s) to $OUTPUT_DIR"
fi
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#!/bin/bash
# Build and push the JellyTau builder Docker image to your registry
set -e
# Configuration
REGISTRY_HOST="${REGISTRY_HOST:-gitea.tourolle.paris}"
REGISTRY_USER="${REGISTRY_USER:-dtourolle}"
IMAGE_NAME="jellytau-builder"
IMAGE_TAG="${1:-latest}"
FULL_IMAGE_NAME="${REGISTRY_HOST}/${REGISTRY_USER}/${IMAGE_NAME}:${IMAGE_TAG}"
echo "🐳 Building JellyTau Builder Image"
echo "=================================="
echo "Registry: $REGISTRY_HOST"
echo "User: $REGISTRY_USER"
echo "Image: $FULL_IMAGE_NAME"
echo ""
# Step 1: Build locally
echo "🔨 Building Docker image locally..."
docker build -f Dockerfile.builder -t ${IMAGE_NAME}:${IMAGE_TAG} .
# Step 2: Tag for registry
echo "🏷️ Tagging for registry..."
docker tag ${IMAGE_NAME}:${IMAGE_TAG} ${FULL_IMAGE_NAME}
# Step 3: Login to registry (if not already logged in)
#
# `docker info | grep Username` only ever reports a Docker Hub session, so for a
# private registry it never matched — meaning this branch fired on every push and
# dropped into an interactive `docker login`, which hangs any non-interactive run
# (a scripted release, or CI). Check the credential store for this specific
# registry instead, and refuse rather than prompt when there is no TTY to
# prompt on.
echo "🔐 Checking registry authentication..."
DOCKER_CFG="${DOCKER_CONFIG:-$HOME/.docker}/config.json"
if ! grep -q "\"${REGISTRY_HOST}\"" "$DOCKER_CFG" 2>/dev/null; then
if [ -t 0 ]; then
echo "Not authenticated to ${REGISTRY_HOST}. Logging in..."
docker login "${REGISTRY_HOST}"
else
echo "❌ Not authenticated to ${REGISTRY_HOST}, and stdin is not a TTY."
echo " Run this first: docker login ${REGISTRY_HOST}"
exit 1
fi
else
echo " Using stored credentials for ${REGISTRY_HOST}."
fi
# Step 4: Push to registry
#
# Two tags, on purpose:
#
# <date> what the workflows pin (e.g. :2026.08). CI must name an immutable
# tag -- while every job said :latest, rebuilding the image silently
# changed what every build, including a rebuild of an old release
# tag, compiled against. That is the opposite of reproducible.
# latest convenience for local `docker compose` runs and for anyone pulling
# the image by hand.
#
# Date tags rather than per-commit SHA tags: the Gitea runner shares a 74 GB
# disk with two other projects, and SHA-tagged images accumulated there until it
# filled. Keep at most a couple of dated tags live and prune the rest
# (`docker image prune -a` on the runner).
#
# To bump: build+push a new dated tag, then update the `image:` lines in
# .gitea/workflows/*.yml in the same commit as whatever needed the new tool.
echo "📤 Pushing image to registry..."
docker push ${FULL_IMAGE_NAME}
if [ "$IMAGE_TAG" != "latest" ]; then
echo "🏷️ Also tagging as :latest for local use..."
LATEST_IMAGE_NAME="${REGISTRY_HOST}/${REGISTRY_USER}/${IMAGE_NAME}:latest"
docker tag ${IMAGE_NAME}:${IMAGE_TAG} ${LATEST_IMAGE_NAME}
docker push ${LATEST_IMAGE_NAME}
fi
echo ""
echo "✅ Successfully built and pushed: ${FULL_IMAGE_NAME}"
echo ""
echo "Workflows must pin the dated tag, not :latest --"
echo " container:"
echo " image: ${FULL_IMAGE_NAME}"
echo ""
echo "Currently pinned in .gitea/workflows/:"
grep -ho "jellytau-builder:[A-Za-z0-9._-]*" "$(git rev-parse --show-toplevel)"/.gitea/workflows/*.yml 2>/dev/null | sort -u | sed "s/^/ /"
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#!/bin/bash
# Build Linux desktop packages (deb + rpm) for JellyTau.
#
# Produces bundles under src-tauri/target/release/bundle/{deb,rpm}.
# Runs on the existing Ubuntu builder image. NOTE: Tauri has no pacman bundle
# target — the Arch package is built separately with makepkg (scripts/build-arch.sh
# / Dockerfile.arch). `appimage` is also available if you want a portable bundle.
#
# Usage:
# scripts/build-desktop-linux.sh # deb + rpm
# BUNDLES="deb,appimage" scripts/build-desktop-linux.sh # subset / add appimage
# OUTPUT_DIR=/app/dist scripts/build-desktop-linux.sh # copy bundles out
set -euo pipefail
cd "$(dirname "$0")/.."
BUNDLES="${BUNDLES:-deb,rpm}"
echo "🐧 Building JellyTau Linux desktop packages"
echo "==========================================="
echo "Bundles: $BUNDLES"
echo ""
bun install --frozen-lockfile 2>/dev/null || bun install
bun run build
# --bundles overrides tauri.conf.json bundle.targets so this script controls
# exactly which Linux formats are produced (never NSIS here).
# TRACES: | DR-221
#
# 🔴 NO_STRIP=true is required for the AppImage bundle.
#
# linuxdeploy (which Tauri downloads and runs to build the AppImage) carries its
# own `strip`, and that copy is too old to parse the `.relr.dyn` section modern
# toolchains emit for RELR relocations. It fails on essentially every bundled
# library:
#
# strip: libzstd.so.1: unknown type [0x13] section `.relr.dyn'
# failed to bundle project `failed to run linuxdeploy-x86_64.AppImage`
#
# Ubuntu 23.10+ links with -z pack-relative-relocs by default, so the CI builder
# image hits this exactly as a modern Arch host does. Skipping the strip step is
# linuxdeploy's own documented escape hatch; the cost is an unstripped, larger
# AppImage (~153 MB for a build that bundles libmpv and its ffmpeg stack).
#
# Remove this only after confirming a linuxdeploy release that understands RELR.
NO_STRIP=true bun run tauri build --bundles "$BUNDLES"
BUNDLE_ROOT="src-tauri/target/release/bundle"
echo ""
echo "✅ Built packages:"
find "$BUNDLE_ROOT" -maxdepth 2 -type f \
\( -name '*.deb' -o -name '*.rpm' -o -name '*.AppImage' \) -print
if [[ -n "${OUTPUT_DIR:-}" ]]; then
mkdir -p "$OUTPUT_DIR"
find "$BUNDLE_ROOT" -maxdepth 2 -type f \
\( -name '*.deb' -o -name '*.rpm' -o -name '*.AppImage' \) \
-exec cp -v {} "$OUTPUT_DIR/" \;
echo ""
echo "📦 Copied bundles to $OUTPUT_DIR"
fi
# Containerised builds run as root against a bind-mounted tree; hand the
# artifacts back to the host user. No-op when not root. See DR-213.
"$(dirname "$0")/restore-ownership.sh"
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#!/bin/bash
# Cross-compile JellyTau for Windows from Linux, producing an NSIS installer.
#
# Uses the OFFICIAL Tauri cross-compile path (https://v2.tauri.app/distribute/
# windows-installer/): the MSVC target driven by cargo-xwin, which downloads the
# MSVC CRT/Windows SDK headers and links with lld. This is the target Tauri
# officially supports for Windows (the mingw/GNU target is not), and unlike GNU
# it can bundle the NSIS installer from a Linux host.
#
# Playback on Windows: video renders via WebView2 and audio via the webview
# <audio> backend (WebviewAudioBackend) — see docs/build/build-windows.md.
#
# Requirements (present in the Docker windows-cross target / unified builder):
# - rustup target x86_64-pc-windows-msvc
# - cargo-xwin (cargo install --locked cargo-xwin)
# - lld, llvm (linker + llvm-lib used by cargo-xwin)
# - nsis (makensis) (installer generator)
#
# Usage:
# scripts/build-windows-cross.sh # exe + NSIS installer
# WIN_BUNDLES=none scripts/build-windows-cross.sh # exe only, skip bundling
# OUTPUT_DIR=/app/dist scripts/build-windows-cross.sh
set -euo pipefail
cd "$(dirname "$0")/.."
TARGET="x86_64-pc-windows-msvc"
WIN_BUNDLES="${WIN_BUNDLES:-nsis}"
echo "🪟 Cross-compiling JellyTau for Windows ($TARGET, via cargo-xwin)"
echo "================================================================"
echo "Video plays via WebView2; audio via the webview <audio> backend."
echo "Bundles: $WIN_BUNDLES"
echo ""
bun install --frozen-lockfile 2>/dev/null || bun install
bun run build
# --runner cargo-xwin + the MSVC target is what makes the Tauri CLI treat this as
# a real Windows build and enable the nsis/msi bundlers on a Linux host.
#
# IMPORTANT: do NOT pass `--bundles nsis` here. tauri-cli 2.9.x validates the
# `--bundles` flag against a static clap enum gated by the HOST OS (Linux allows
# only deb/rpm/appimage) *before* it considers --target/--runner, so `--bundles
# nsis` is rejected at arg-parse time. Instead the Windows bundle targets come
# from tauri.conf.json (bundle.targets includes "nsis"), which is not subject to
# that CLI validation — the bundler then picks nsis once it knows the target is
# Windows.
# TRACES: | DR-221
#
# 🔴 Clear the bundle output before building.
#
# The bundle directory is not versioned and is never cleaned by cargo, and the
# CI runner reuses src-tauri/target between builds. The copy step below globs
# `bundle/**/*-setup.exe`, so every stale installer left there was picked up and
# attached to the release: v0.8.2 shipped sixteen Windows installers, thirteen
# of them from earlier versions, and v0.5.0 offered users a download list going
# back to 0.1.0. Every release from v0.1.0 to v0.8.2 did this. It stopped only
# because an unrelated change wiped the runner's target dir, so it is dormant
# rather than fixed.
#
# Filtering the copy by version would hide it; removing the directory means a
# stale file cannot exist to be copied. scripts/check-release-artifacts.sh is
# the backstop if some other path reintroduces one.
BUNDLE_DIR="src-tauri/target/$TARGET/release/bundle"
if [[ -d "$BUNDLE_DIR" ]]; then
echo "🧹 Clearing previous bundle output at $BUNDLE_DIR"
rm -rf "$BUNDLE_DIR"
fi
if [[ "$WIN_BUNDLES" == "none" ]]; then
bun run tauri build --runner cargo-xwin --target "$TARGET" --no-bundle
else
bun run tauri build --runner cargo-xwin --target "$TARGET"
fi
BIN_DIR="src-tauri/target/$TARGET/release"
echo ""
echo "✅ Built Windows artifacts:"
find "$BIN_DIR" -maxdepth 1 -name '*.exe' -print
find "$BIN_DIR/bundle" -type f \( -name '*.exe' -o -name '*.msi' \) -print 2>/dev/null || true
if [[ -n "${OUTPUT_DIR:-}" ]]; then
mkdir -p "$OUTPUT_DIR"
find "$BIN_DIR" -maxdepth 1 -name 'jellytau.exe' -exec cp -v {} "$OUTPUT_DIR/" \;
# NSIS setup installers land in bundle/nsis/*-setup.exe; MSI in bundle/msi/*.msi.
#
# The .sig files come along too: when TAURI_SIGNING_PRIVATE_KEY is set the
# bundler writes `<installer>.sig` beside each installer, and that signature is
# what the updater verifies before installing anything. Leaving it behind
# produces a release whose manifest references a signature that was never
# published, which fails only on the user's machine.
find "$BIN_DIR/bundle" -type f \( -name '*-setup.exe' -o -name '*.msi' -o -name '*.sig' \) \
-exec cp -v {} "$OUTPUT_DIR/" \; 2>/dev/null || true
echo ""
echo "📦 Copied Windows artifacts to $OUTPUT_DIR"
fi
# Containerised builds run as root against a bind-mounted tree; hand the
# artifacts back to the host user. No-op when not root. See DR-213.
"$(dirname "$0")/restore-ownership.sh"
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#!/bin/bash
# Check Android development environment
set -e
echo "🔍 Checking Android development environment..."
echo ""
# Check ADB
if command -v adb &> /dev/null; then
echo "✅ ADB installed: $(adb version | head -1)"
else
echo "❌ ADB not found"
fi
# Check Android SDK
if [ -d "$HOME/Android/Sdk" ]; then
echo "✅ Android SDK found at: $HOME/Android/Sdk"
else
echo "❌ Android SDK not found at: $HOME/Android/Sdk"
fi
# Check NDK
if [ -d "$HOME/Android/Sdk/ndk" ]; then
NDK_VERSION=$(ls "$HOME/Android/Sdk/ndk" | head -1)
echo "✅ NDK found: $NDK_VERSION"
else
echo "❌ NDK not found"
fi
# Check Rust
if command -v rustc &> /dev/null; then
echo "✅ Rust installed: $(rustc --version)"
else
echo "❌ Rust not found"
fi
# Check Cargo
if command -v cargo &> /dev/null; then
echo "✅ Cargo installed: $(cargo --version)"
else
echo "❌ Cargo not found"
fi
# Check for connected devices
echo ""
echo "📱 Connected Android devices:"
if adb devices | grep -q "device$"; then
adb devices | grep "device$"
else
echo "⚠️ No devices connected"
fi
echo ""
echo "🔍 Environment check complete!"
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#!/usr/bin/env bash
# Documentation link integrity: every relative markdown link must point at a
# file that exists.
#
# Implements DR-208 (see docs/requirements.md).
#
# Why this exists: docs/traceability.md is generated into docs/ while its file
# links were emitted repo-root-relative, so all ~2,800 of them resolved to
# docs/src-tauri/… and 404'd — in the Gitea repo browser and on the published
# mdBook site alike. Nobody clicks 2,800 links, so it went unnoticed for months.
# Several hand-written docs had the same defect at smaller scale: links to files
# that had been deleted, and links written as if the doc lived at the repo root.
# A link that does not resolve is a documentation defect of the same kind as a
# compile error, and a grep is enough to catch the whole class.
#
# What it checks: for every tracked `.md` file, every inline markdown link
# `[text](target)` whose target is a *path* — the target is resolved relative to
# the directory of the file containing it, and must exist on disk.
#
# ⚠️ It validates PATHS, NOT ANCHORS. A green run does not mean the links land
# where the text claims.
#
# 🔴 What it deliberately CANNOT see (do not read a green run as proof):
# - **Anchor fragments.** `foo.md#some-heading` is checked only as `foo.md`.
# Resolving the fragment needs a markdown renderer's heading-slug rules
# (which differ between Gitea, GitHub and mdBook), so a link to a heading
# that was renamed still passes here. That is a deliberate scope cut, not an
# oversight.
# - **External URLs.** http(s):// and mailto: are skipped. Checking them means
# network I/O in a gate, which makes the gate flaky and slow; link rot in an
# external URL is also not something a commit can break.
# - **Reference-style links** (`[text][ref]` with a separate `[ref]: target`
# definition) and bare autolinks. This project writes inline links; add the
# pattern here if that changes.
# - **Links inside fenced code blocks**, which are intentionally skipped —
# a template being *shown* to the reader (e.g. the release-notes template in
# docs/release-checklist.md) is sample text, not a live link, and its targets
# are resolved wherever it is eventually pasted, not from the docs tree.
# - **A link that resolves to the wrong existing file.** Existence is not
# correctness.
#
# Usage: bash scripts/check-doc-links.sh
# Exits non-zero, listing file:line and the unresolved target, on any failure.
set -euo pipefail
cd "$(dirname "$0")/.."
# Generated, vendored or build-output trees. Their markdown is not authored here
# and their link targets are not ours to fix.
#
# Only consulted when this is NOT a git checkout — inside one, the tracked-file
# list does this job and does not need maintaining. Kept for the tarball case.
EXCLUDES=(
"./node_modules/*"
"./.svelte-kit/*"
"./build/*"
"./dist/*"
"./src-tauri/gen/*"
"./src-tauri/target/*"
"./.git/*"
# Agent/dev scratch worktrees (.claude/worktrees is itself git-ignored). These
# are full checkouts of the repo, so without this the checker walks every
# in-flight branch and reports its links as if they were ours.
"./.claude/*"
)
# Targets that do not exist in the repo *by design* because the publish-docs job
# writes them into docs/ at build time (see .gitea/workflows/publish-docs.yml).
# Keep this list to genuinely generated pages — anything else here is a broken
# link being hidden.
GENERATED_TARGETS=(
"./docs/README.md" # the site's landing page, written by publish-docs
"./docs/api-redirect.md" # the rustdoc redirect stub, likewise
)
is_generated() {
local candidate="$1"
for generated in "${GENERATED_TARGETS[@]}"; do
[[ "$candidate" == "$generated" ]] && return 0
done
return 1
}
echo "🔎 Checking relative markdown links resolve to files on disk…"
# Ask git which markdown files are ours, rather than walking the filesystem.
#
# This started as a find(1) with a hand-maintained prune list, and that list was
# wrong three times in a row: it walked the scratch worktrees under .claude/,
# then makepkg's vendored cargo registry under packaging/arch/src/ — each time
# reporting a dependency's broken README as if it were ours. Every one of those
# directories is already git-ignored, so the tracked-file list is the exclusion
# rule, and it cannot drift out of date the way EXCLUDES did. It also matches
# what this script always claimed to do.
#
# Untracked-but-not-ignored files are deliberately included: a new doc added in
# a working tree should be checked before it is committed, not after.
if git rev-parse --git-dir >/dev/null 2>&1; then
mapfile -t md_files < <(
{ git ls-files -z --cached --others --exclude-standard -- '*.md' | tr '\0' '\n'; } \
| sed 's|^|./|' | sort -u
)
else
# Not a git checkout (an exported tarball, say): fall back to walking, with
# the prune list below as the only defence.
find_args=(. )
for pattern in "${EXCLUDES[@]}"; do
find_args+=(-path "$pattern" -prune -o)
done
find_args+=(-name "*.md" -type f -print)
mapfile -t md_files < <(find "${find_args[@]}" | sort)
fi
echo " ${#md_files[@]} markdown files"
broken=""
checked=0
for md in "${md_files[@]}"; do
dir="$(dirname "$md")"
# One documented exception: docs-site/SUMMARY.md is mdBook's table of
# contents, and the publish-docs job copies it *into* docs/ before rendering
# (book.toml sets src = "../docs"). Its links are therefore written relative
# to docs/, not to the directory the file is stored in. Resolving it from
# docs/ is what actually validates it — and it is the check that catches a
# SUMMARY entry pointing at a page that does not exist, which mdBook itself
# only warns about.
if [[ "$md" == "./docs-site/SUMMARY.md" ]]; then
dir="./docs"
fi
# Strip fenced code blocks (``` and ~~~) before extracting links, so sample
# markdown shown to the reader is not checked as if it were a live link.
# Line numbers are preserved by blanking the lines rather than deleting them.
#
# Then emit "lineno<TAB>target" for each inline link on each surviving line.
while IFS=$'\t' read -r lineno target; do
[[ -z "${target:-}" ]] && continue
# Skip external schemes and pure-anchor links.
case "$target" in
http://*|https://*|mailto:*|ftp://*|"#"*|"") continue ;;
# A protocol-relative or scheme-ish target we do not resolve.
//*) continue ;;
esac
# Drop any anchor fragment and query string — we check the path only.
path="${target%%#*}"
path="${path%%\?*}"
[[ -z "$path" ]] && continue
# Percent-decode: SvelteKit route directories are literally named `[id]`,
# which docs link as `%5Bid%5D`, and spaces appear as `%20`.
if [[ "$path" == *%* ]]; then
path="$(printf '%b' "${path//%/\\x}")"
fi
checked=$((checked + 1))
if is_generated "$dir/$path"; then
continue
fi
if [[ ! -e "$dir/$path" ]]; then
broken+="${md}:${lineno} -> ${target}"$'\n'
fi
done < <(
awk '
/^[[:space:]]*(```|~~~)/ { fence = !fence; print ""; next }
fence { print ""; next }
{ print }
' "$md" |
grep -noE '\]\([^)[:space:]]+' |
sed -E 's/^([0-9]+):\]\(/\1\t/'
)
done
echo " $checked relative links checked"
if [[ -n "$broken" ]]; then
echo ""
echo "❌ Broken documentation links — these targets do not exist on disk:"
echo ""
echo "$broken" | sed 's/^/ /'
echo " Each link is resolved relative to the directory of the file it is in."
echo " The usual causes:"
echo " • the target file was moved or deleted — update or drop the link;"
echo " • the link was written as if the doc lived at the repo root — a doc"
echo " in docs/ needs '../' to reach src/, scripts/ or CHANGELOG.md;"
echo " • a generated doc emits repo-root-relative hrefs — fix the"
echo " generator, not the output (see scripts/extract-traces.ts)."
exit 1
fi
echo "✅ All relative documentation links resolve."
echo " (Reminder: paths only — anchors and external URLs are NOT checked.)"
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#!/usr/bin/env bash
# Boundary tripwire: flag domain-taxonomy leaks in the Svelte frontend.
#
# Implements DR-094 (see docs/requirements.md).
#
# The project rule (CLAUDE.md, docs/architecture/02-svelte-frontend.md) is that
# the frontend is presentation-only and the Rust backend owns domain logic —
# including Jellyfin's item-type *taxonomy* (what the category "Music" means as a
# set of item types). See docs/specs/scoped-search-boundary.md for the incident
# that motivated this check.
#
# ⚠️ This is a TRIPWIRE, NOT A PROOF. A grep cannot distinguish taxonomy-as-policy
# (a leak) from taxonomy-as-display (legitimate: "is this a music card?"). It
# targets the machine-detectable signature of the leak class and defers
# everything subtler to the human spec-review checklist
# (docs/specs/SPEC-REVIEW-CHECKLIST.md). A clean run here does not mean the
# boundary is respected; it means the crudest violation isn't present.
#
# What it flags: an array literal naming two or more Jellyfin item types,
# ANYWHERE in src/ — i.e. the frontend deciding that a *category* maps to a *set*
# of Jellyfin types, which is domain knowledge the backend should own.
# Single-type arrays (`includeItemTypes: ["Movie"]`) are a page saying "I show
# movies" and are allowed. Type *inspection* (`item.type === "Audio"`) is display
# logic and is not matched.
#
# 🔴 What it still CANNOT see (do not read a green run as proof):
# - a type set built at run time: [...musicTypes, "Playlist"]
# - types split across variables: const A = "Audio"; [A, B]
# - taxonomy as control flow: switch (t) { case "Audio": … }
# t === "Audio" || t === "MusicAlbum"
# - an item type absent from ITEM_TYPES below (false negative by design)
#
# This check was hardened in July 2026 after the audit found it passing on the
# very leak it was written for: the original pattern was anchored to
# `includeItemTypes:` at the query site, so assigning the same array to a named
# const evaded it entirely (DR-094). The pattern below is the hardened one: it
# matches an item-type array literal anywhere, not just at a query site.
#
# Escaping a genuine exception: add the file+reason to the ALLOWLIST below.
set -euo pipefail
cd "$(dirname "$0")/.."
# Files permitted to contain a multi-type item-type array, with the reason.
# Keep this SHORT. A growing allowlist means the boundary is eroding — that is a
# signal to push taxonomy into Rust, not to keep appending here.
ALLOWLIST=(
# "Things a person appeared in" is arguably taxonomy, but it is a fixed
# two-type filmography query with no category-configuration behind it. Tracked
# as acceptable pending any person-scope work; revisit if it grows.
"src/lib/components/library/PersonDetailView.svelte"
# Grid styling predicate over `config.itemType`, a value the page already
# declares about itself. Selects a *look*, issues no query, and would only
# change if the UI were redesigned — presentation, not taxonomy-as-policy.
"src/lib/components/library/GenericMediaListPage.svelte"
# "Is this item a container?" predicate for downloads browsing.
# BORDERLINE — leans domain: the container set grows when Jellyfin adds a
# container type. TODO: replace with a backend-supplied `MediaItem.isContainer`
# flag and remove this entry. Tracked in
# a backend-supplied flag; deferred rather than bundled with the tripwire work.
"src/lib/components/downloads/DownloadedBrowse.svelte"
)
# Hard cap so erosion is caught mechanically rather than by whoever notices.
# Deliberately just above the current count: the next exception forces a
# conversation instead of a one-line append.
MAX_ALLOWLIST=4
if [[ "${#ALLOWLIST[@]}" -gt "$MAX_ALLOWLIST" ]]; then
echo "❌ Allowlist has ${#ALLOWLIST[@]} entries (max $MAX_ALLOWLIST)."
echo " Push taxonomy into Rust instead of appending here."
exit 1
fi
is_allowed() {
local file="$1"
for allowed in "${ALLOWLIST[@]}"; do
[[ "$file" == "$allowed" ]] && return 0
done
return 1
}
# Two or more adjacent Jellyfin item-type string literals inside a bracket.
#
# NOT anchored to `includeItemTypes:` — that was the original rule, and it missed
# the real leak: `searchScope.ts` assigned the same array to a named const and
# dereferenced it one indirection away from the query, so the grep never saw it
# while CI stayed green. Matching the array literal itself catches a const, a
# Record value, a function return, and an inline query alike.
#
# Deliberate limits:
# - requires TWO adjacent types, so single-type presentation
# (`itemType: "Movie"`) stays legal — the rule targets *category* taxonomy;
# - requires string literals, so `item.type === "Audio"` (display inspection)
# does not match;
# - uses an explicit type list rather than a generic capitalised-word pattern,
# so unrelated string arrays (`["High","Low"]`) produce no noise.
#
# An item type missing from this list is a false *negative*, never a false
# positive — the check degrades safely as Jellyfin adds types.
ITEM_TYPES='Movie|Series|Episode|Audio|MusicAlbum|MusicArtist|MusicVideo|Season|BoxSet|Playlist|Book|AudioBook|Video|Person|Folder|CollectionFolder|TvChannel|LiveTvChannel'
PATTERN="\[[[:space:]]*\"($ITEM_TYPES)\"[[:space:]]*,[[:space:]]*\"($ITEM_TYPES)\""
echo "🔎 Checking frontend for domain-taxonomy leaks (item-type array literals)…"
# Collect hits, excluding tests and the allowlist.
violations=""
while IFS= read -r line; do
[[ -z "$line" ]] && continue
file="${line%%:*}"
case "$file" in
*.test.*) continue ;;
esac
if is_allowed "$file"; then
echo " ⏭️ allowlisted: $line"
continue
fi
violations+="$line"$'\n'
done < <(grep -rInE "$PATTERN" src/ 2>/dev/null || true)
if [[ -n "$violations" ]]; then
echo ""
echo "❌ Frontend boundary violation: an item-type array literal defines a"
echo " category in the presentation layer. That taxonomy belongs in Rust —"
echo " send an opaque scope/enum and let the backend expand it to item types"
echo " (see SearchScope::item_types() in src-tauri/src/repository/types.rs)."
echo " Assigning the array to a const does not make it presentation."
echo " See docs/specs/scoped-search-boundary.md and CLAUDE.md."
echo ""
echo "$violations" | sed 's/^/ /'
echo " If this is a genuine exception, add the file + reason to ALLOWLIST in"
echo " scripts/check-frontend-boundary.sh — but prefer moving it to Rust."
exit 1
fi
echo "✅ No multi-type taxonomy queries in the frontend."
echo " (Reminder: this is a tripwire, not a proof — the spec-review checklist is"
echo " the real gate for subtler leaks.)"
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@@ -1,103 +0,0 @@
#!/usr/bin/env bash
# Refuse to publish a release whose artifacts are not all from this release.
#
# TRACES: | DR-220
#
# ./scripts/check-release-artifacts.sh <version> <dir> [<dir>...]
#
# e.g.
# ./scripts/check-release-artifacts.sh v0.9.2 artifacts/linux artifacts/windows
#
# ## The defect this exists for
#
# Every JellyTau release from v0.1.0 to v0.8.2 shipped every Windows installer
# ever built. `src-tauri/target/*/release/bundle/` is not versioned, cargo never
# cleans it, and the CI runner reuses the target directory between builds — so
# the copy step's `bundle/**/*-setup.exe` glob collected the whole history. By
# v0.8.2 that was sixteen installers, thirteen of them stale. v0.5.0 offered
# users a download list going back to 0.1.0.
#
# Nobody noticed for eight months. There was nothing to notice with: the upload
# loop reported success, the assets were real files, and the release page looked
# busy rather than wrong.
#
# The builds now clear the bundle directory first, which removes the cause. This
# is the backstop for the next thing that reintroduces a stale file by a route
# nobody predicted — a cached directory, a restored artifact, a hand-copied fix.
#
# ## What it checks
#
# Every file whose name embeds a semantic version must embed *this* version.
# Files with no version in the name (jellytau-release.apk, jellytau.exe,
# SHA256SUMS, latest.json) are accepted: they are produced fresh each build and
# have no version to disagree with.
set -euo pipefail
if [ "$#" -lt 2 ]; then
echo "usage: $0 <version> <dir> [<dir>...]" >&2
exit 2
fi
VERSION_RAW="$1"
shift
# Accept the tag form (v0.9.2) or the bare form (0.9.2).
VERSION="${VERSION_RAW#v}"
echo "🔎 Checking release artifacts are all version ${VERSION}"
FOUND=0
STALE=0
UNVERSIONED=0
for dir in "$@"; do
if [ ! -d "$dir" ]; then
echo " (no $dir — skipping)"
continue
fi
# -print0/read -d '' so a filename with a space cannot split into two.
while IFS= read -r -d '' file; do
name="$(basename "$file")"
FOUND=$((FOUND + 1))
# First x.y.z in the filename, if any.
embedded="$(printf '%s' "$name" | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1 || true)"
if [ -z "$embedded" ]; then
UNVERSIONED=$((UNVERSIONED + 1))
continue
fi
if [ "$embedded" != "$VERSION" ]; then
echo "$name carries version $embedded"
STALE=$((STALE + 1))
fi
done < <(find "$dir" -type f -print0)
done
echo ""
echo " $FOUND file(s) checked; $UNVERSIONED carry no version in the name."
if [ "$FOUND" -eq 0 ]; then
echo "❌ No artifacts found at all. A release with no files is a failed build," >&2
echo " not an empty one." >&2
exit 1
fi
if [ "$STALE" -gt 0 ]; then
echo ""
echo "$STALE artifact(s) belong to a different version than ${VERSION}." >&2
echo "" >&2
echo " This is how every release from v0.1.0 to v0.8.2 came to ship its" >&2
echo " predecessors' Windows installers: src-tauri/target/*/release/bundle/" >&2
echo " is never cleaned and the runner reuses it, so a glob picks up" >&2
echo " whatever was left behind." >&2
echo "" >&2
echo " The builds clear that directory first, so seeing this means a stale" >&2
echo " file arrived by some other route. Find it before publishing — do not" >&2
echo " delete the file and re-run." >&2
exit 1
fi
echo "✅ Every versioned artifact is ${VERSION}."
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@@ -1,73 +0,0 @@
#!/usr/bin/env bash
# Refuse tooling that contradicts what this project actually uses.
#
# TRACES: | DR-222
#
# ./scripts/check-tooling.sh
#
# ## Why
#
# This is a bun project: `packageManager` in package.json says so, bun.lock is
# the committed lockfile, and .gitignore hides the other package managers'
# lockfiles precisely so they cannot be committed by accident.
#
# scripts/build-android.sh nonetheless ran `npm install` on its clean-build
# path. npm ignores bun.lock, re-resolves the whole tree from package.json, and
# writes a package-lock.json that .gitignore then hides from view.
#
# That is not a style preference. The Tauri CLI refuses to build when a plugin's
# Rust crate and npm package differ by minor version, so the JS side is pinned
# exactly against Cargo.lock -- and a silent re-resolve is exactly how those
# halves drift apart again. The drift already cost one release build.
#
# It survived because the clean-build path runs rarely. That is the shape of
# nearly every defect found while preparing v0.10.0: the code that runs on every
# commit was fine, and the code that runs on a release, a clean build or a tag
# had no guard at all.
set -uo pipefail
REPO_ROOT="$(git rev-parse --show-toplevel)"
cd "$REPO_ROOT" || exit 1
FAILED=0
echo "🔎 Checking build tooling is consistent with packageManager…"
# Only the *invocations* matter. A comment explaining why npm is wrong, or a
# .gitignore entry naming package-lock.json, is not a violation -- so match a
# command at the start of a line or after a shell separator.
PATTERN='(^|[;&|(]|&&|\|\||\bthen |\bdo |[[:space:]]{4,})(npm|yarn|pnpm)[[:space:]]+(install|ci|add|run|exec)\b'
MATCHES="$(grep -rInE "$PATTERN" \
--include='*.sh' --include='*.yml' --include='*.yaml' \
scripts/ .gitea/ 2>/dev/null | grep -v '^\s*#' || true)"
if [ -n "$MATCHES" ]; then
echo "❌ A non-bun package manager is invoked:"
echo "$MATCHES" | sed 's/^/ /'
echo ""
echo " This project uses bun (packageManager in package.json, bun.lock"
echo " committed). npm/yarn/pnpm ignore that lockfile and re-resolve the"
echo " dependency tree, which is how the Tauri plugin crate/package"
echo " versions drifted apart and broke a release build."
echo ""
echo " Use: bun install / bun run / bunx"
FAILED=1
fi
# A lockfile from another manager should never exist here; .gitignore hides
# them, so one can sit in a working tree unnoticed and change what installs.
for stray in package-lock.json yarn.lock pnpm-lock.yaml; do
if [ -f "$stray" ]; then
echo "$stray exists. Another package manager has run here."
echo " Delete it and run: bun install"
FAILED=1
fi
done
if [ "$FAILED" -eq 0 ]; then
echo "✅ Only bun is used, and no foreign lockfile is present."
fi
exit "$FAILED"
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#!/bin/bash
# Clean build artifacts
set -e
echo "🧹 Cleaning build artifacts..."
echo ""
# Clean frontend
if [ -d "node_modules/.cache" ]; then
echo "Cleaning Vite cache..."
rm -rf node_modules/.cache
fi
if [ -d ".svelte-kit" ]; then
echo "Cleaning SvelteKit build..."
rm -rf .svelte-kit
fi
if [ -d "build" ]; then
echo "Cleaning build directory..."
rm -rf build
fi
# Clean Rust
echo "Cleaning Rust target..."
cd src-tauri
cargo clean
cd ..
# Clean Android
if [ -d "src-tauri/gen/android" ]; then
echo "Cleaning Android build..."
cd src-tauri/gen/android
./gradlew clean 2>/dev/null || true
cd ../../..
fi
echo ""
echo "✅ Clean complete!"
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@@ -1,72 +0,0 @@
#!/bin/bash
# Deploy APK to connected Android device
set -e
echo "📱 Deploying to Android device..."
echo ""
# Check if device is connected
if ! adb devices | grep -q "device$"; then
echo "❌ No Android device connected!"
echo "Please connect a device or start an emulator."
exit 1
fi
# Build type: debug or release (default: debug). `--debug` alongside `release`
# means the side-by-side release build — same APK path, but it was packaged
# under the .debug applicationId, so the package to launch differs.
BUILD_TYPE="debug"
SIDE_BY_SIDE=0
for arg in "$@"; do
case "$arg" in
--debug|--side-by-side) SIDE_BY_SIDE=1 ;;
debug|release) BUILD_TYPE="$arg" ;;
esac
done
[ "$BUILD_TYPE" = "debug" ] && SIDE_BY_SIDE=1
# The .debug applicationId (see src-tauri/android/app/build.gradle.kts) is a
# separate package, so it installs alongside a real release build — no
# uninstall dance needed.
if [ "$BUILD_TYPE" = "release" ]; then
APK_PATH="src-tauri/gen/android/app/build/outputs/apk/universal/release/app-universal-release.apk"
else
APK_PATH="src-tauri/gen/android/app/build/outputs/apk/universal/debug/app-universal-debug.apk"
fi
if [ "$SIDE_BY_SIDE" = "1" ]; then
APP_PACKAGE="com.dtourolle.jellytau.debug"
else
APP_PACKAGE="com.dtourolle.jellytau"
fi
# Check if APK exists
if [ ! -f "$APK_PATH" ]; then
echo "❌ APK not found at: $APK_PATH"
if [ "$BUILD_TYPE" = "release" ] && [ "$SIDE_BY_SIDE" = "1" ]; then
echo "Run './scripts/build-android.sh release --debug' first"
else
echo "Run './scripts/build-android.sh $BUILD_TYPE' first"
fi
exit 1
fi
echo "📦 Installing APK: $APK_PATH"
echo "📛 Package: $APP_PACKAGE"
if ! adb install -r "$APK_PATH"; then
echo ""
echo "❌ Install failed."
echo " If it says INSTALL_FAILED_UPDATE_INCOMPATIBLE, an older build of"
echo " '$APP_PACKAGE' signed with a different key is still installed."
echo " Uninstall just that one and retry:"
echo " adb uninstall $APP_PACKAGE"
exit 1
fi
echo ""
echo "✅ Deployment complete!"
echo "🚀 Launching..."
adb shell monkey -p "$APP_PACKAGE" -c android.intent.category.LAUNCHER 1 > /dev/null 2>&1 \
|| echo " (auto-launch failed — start it from the launcher)"
-406
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/**
* Tests for the traceability coverage computation.
*
* These run over fixture strings rather than the live docs/requirements.md, so
* their meaning does not drift as requirements are added.
*
* Background: the CI gate divided traced-requirement counts by hardcoded
* denominators (UR/39, IR/24, DR/48, JA/3, total 114) that had fallen out of
* date, reporting 158% coverage and making the 50% threshold unreachable. These
* tests pin the parsing and arithmetic that replace those literals.
*
* @req-test: UT-089 - Requirement definitions parsed from requirements.md
* @req-test: UT-090 - Coverage is the intersection of traced and defined IDs
* @req-test: UT-202 - Generated matrix links resolve from docs/
*/
import { describe, it, expect } from "vitest";
import * as fs from "fs";
import * as path from "path";
import {
countDefinedRequirements,
computeCoverage,
findDanglingIds,
formatMatrixFileLink,
generateMarkdown,
isTracedSourceFile,
MIN_COVERAGE_PERCENT,
type TracesData,
} from "./extract-traces";
// import.meta.dir is Bun-only; derive from import.meta.url under vitest.
const HERE = path.dirname(new URL(import.meta.url).pathname);
describe("isTracedSourceFile", () => {
// The extractor used to accept only .ts/.svelte/.rs under src/, src-tauri/src/
// and scripts/. Every requirement implemented by *configuration* was therefore
// invisible to the matrix that measures it: eslint.config.js (DR-205), the
// pre-commit hook (DR-207), rust-toolchain.toml (DR-206) and deny.toml
// (DR-216) all carry TRACES comments that were never read. Each one counted
// against coverage as an uncovered requirement while being, in fact, covered.
it("accepts the source extensions it always did", () => {
expect(isTracedSourceFile("src/lib/utils/logger.ts")).toBe(true);
expect(isTracedSourceFile("src/routes/settings/+page.svelte")).toBe(true);
expect(isTracedSourceFile("src-tauri/src/lib.rs")).toBe(true);
});
it("accepts tooling files that implement a requirement", () => {
expect(isTracedSourceFile("eslint.config.js")).toBe(true);
expect(isTracedSourceFile("src-tauri/deny.toml")).toBe(true);
expect(isTracedSourceFile("src-tauri/rust-toolchain.toml")).toBe(true);
expect(isTracedSourceFile("scripts/hooks/pre-commit")).toBe(true);
// Shell tooling is listed individually, not globbed: most scripts/*.sh
// implement nothing, and adding one should be a decision.
expect(isTracedSourceFile("scripts/check-release-artifacts.sh")).toBe(true);
expect(isTracedSourceFile("scripts/build-desktop-linux.sh")).toBe(true);
expect(isTracedSourceFile("scripts/logcat.sh")).toBe(false);
});
it("does not scan CI workflows, whose comments discuss TRACES in prose", () => {
// .gitea/workflows/traceability-check.yml explains the gate, so it contains
// lines like "a `TRACES:` comment ... (DR-189 and UT-188 lived in three
// source files, defined nowhere)". The extractor's pattern would read that
// as a trace and manufacture references to IDs that do not exist, failing
// traces:validate. A file that *describes* traceability is not a file that
// implements a requirement.
expect(isTracedSourceFile(".gitea/workflows/traceability-check.yml")).toBe(false);
expect(isTracedSourceFile(".gitea/workflows/build-and-test.yml")).toBe(false);
});
it("rejects files that merely mention a requirement in prose", () => {
// requirements.md defines IDs; traceability.md is generated *from* traces.
// Scanning either would make every requirement trace to itself.
expect(isTracedSourceFile("docs/requirements.md")).toBe(false);
expect(isTracedSourceFile("docs/traceability.md")).toBe(false);
expect(isTracedSourceFile("README.md")).toBe(false);
});
it("rejects generated and vendored trees", () => {
expect(isTracedSourceFile("node_modules/foo/index.ts")).toBe(false);
expect(isTracedSourceFile("src-tauri/target/debug/build/x.rs")).toBe(false);
expect(isTracedSourceFile("src-tauri/gen/android/app/build.gradle.kts")).toBe(false);
});
});
describe("countDefinedRequirements", () => {
it("counts a well-formed table row as a defined requirement", () => {
const md = `
| ID | Requirement | Priority | Status |
|----|-------------|----------|--------|
| UR-001 | Run the app on multiple platforms | High | In Progress |
| UR-002 | Access media when online or offline | High | Done |
`;
const defined = countDefinedRequirements(md);
expect(defined.UR).toBe(2);
expect(defined.DR).toBe(0);
});
it("does not count IDs that appear only in the Traces To column", () => {
// The bug this rule avoids: a naive grep for /DR-\d{3}/ over the whole file
// counts DR-001 here as "defined", inflating the denominator with IDs that
// are merely referenced.
const md = `
| DR-001 | Player state machine | Player | UR-005 | Done |
| DR-002 | MediaItem struct | Player | UR-003, UR-004 | Done |
`;
const defined = countDefinedRequirements(md);
expect(defined.DR).toBe(2);
// UR-005/UR-003/UR-004 are referenced, never defined here.
expect(defined.UR).toBe(0);
});
it("does not count IDs mentioned in prose", () => {
const md = `
Some prose explaining that UR-005 relates to DR-001 and JA-002.
| UR-005 | Control media playback | High | Done |
`;
const defined = countDefinedRequirements(md);
expect(defined.UR).toBe(1);
expect(defined.DR).toBe(0);
expect(defined.JA).toBe(0);
});
it("deduplicates an ID listed in both the spec table and the traceability matrix", () => {
// requirements.md lists every UR twice: once in §1 (definition) and again in
// §3 (traceability matrix), both as a leading table cell. Counting rows
// instead of unique IDs double-counts the UR denominator (121 vs 61).
const md = `
| UR-005 | Control media playback | High | Done |
| UR-006 | Browse the library | High | Done |
### Traceability Matrix
| UR-005 | - | DR-001, DR-005, DR-009 |
| UR-006 | - | DR-012 |
`;
const defined = countDefinedRequirements(md);
expect(defined.UR).toBe(2);
});
it("collects the defined ID set, not just counts", () => {
const md = `
| UR-001 | A | High | Done |
| DR-050 | B | Player | UR-001 | Done |
`;
const defined = countDefinedRequirements(md);
expect(defined.ids.has("UR-001")).toBe(true);
expect(defined.ids.has("DR-050")).toBe(true);
expect(defined.ids.has("UR-999")).toBe(false);
});
it("collects UT/IT rows separately, out of the coverage denominator", () => {
// §4 defines the test taxonomy. Those rows must be known (so a TRACES
// comment may name them) without ever moving the coverage ratio.
const md = `
| UR-001 | A | High | Done |
| UT-001 | Player state transitions | DR-001 | Pending |
| IT-004 | Playback end-to-end | DR-002 | Pending |
`;
const defined = countDefinedRequirements(md);
expect(defined.total).toBe(1);
expect(defined.ids.has("UT-001")).toBe(false);
expect(defined.testIds.has("UT-001")).toBe(true);
expect(defined.testIds.has("IT-004")).toBe(true);
});
});
describe("findDanglingIds", () => {
const defined = {
UR: 1,
IR: 0,
DR: 1,
JA: 0,
total: 2,
ids: new Set(["UR-001", "DR-001"]),
testIds: new Set(["UT-001"]),
};
it("flags a requirement ID that requirements.md does not define", () => {
expect(findDanglingIds(["UR-001", "DR-189"], defined)).toEqual(["DR-189"]);
});
it("flags an undefined UT/IT id, which the coverage orphan list cannot", () => {
// The gap this closes: computeCoverage deliberately ignores UT/IT, so
// UT-188 sat in three source files, defined nowhere, entirely unreported.
expect(computeCoverage(["UT-188"], defined).orphaned).toEqual([]);
expect(findDanglingIds(["UT-188"], defined)).toEqual(["UT-188"]);
});
it("accepts every ID that is defined, requirement or test", () => {
expect(findDanglingIds(["UR-001", "DR-001", "UT-001"], defined)).toEqual([]);
});
it("deduplicates and sorts, so one typo is reported once", () => {
expect(findDanglingIds(["DR-189", "DR-189", "UR-999", "DR-189"], defined)).toEqual([
"DR-189",
"UR-999",
]);
});
it("ignores IDs whose prefix is not a known trace type", () => {
// e.g. an unrelated "AB-123" caught by the loose ID regex.
expect(findDanglingIds(["AB-123"], defined)).toEqual([]);
});
});
describe("coverage threshold", () => {
it("matches MIN_THRESHOLD in the Gitea traceability workflow", () => {
// Two files must agree on the gate: the script (local `traces:coverage`)
// and the workflow. Drift means the local gate and CI disagree about what
// passes, which is how the 50%-while-actually-86% slack went unnoticed.
const workflow = fs.readFileSync(
path.resolve(HERE, "../.gitea/workflows/traceability-check.yml"),
"utf-8",
);
const match = workflow.match(/^\s*MIN_THRESHOLD=(\d+)\s*$/m);
expect(match).not.toBeNull();
expect(Number(match![1])).toBe(MIN_COVERAGE_PERCENT);
});
it("is a ratchet: never lower it to make a red build pass", () => {
// Sanity bound. If coverage genuinely climbs, raise both numbers together.
expect(MIN_COVERAGE_PERCENT).toBeGreaterThanOrEqual(82);
expect(MIN_COVERAGE_PERCENT).toBeLessThanOrEqual(100);
});
});
describe("computeCoverage", () => {
const defined = {
UR: 2,
IR: 0,
DR: 2,
JA: 0,
total: 4,
ids: new Set(["UR-001", "UR-002", "DR-001", "DR-002"]),
testIds: new Set<string>(),
};
it("computes coverage as traced ∩ defined over defined", () => {
const traced = ["UR-001", "DR-001"];
const cov = computeCoverage(traced, defined);
expect(cov.covered).toBe(2);
expect(cov.total).toBe(4);
expect(cov.percent).toBe(50);
});
it("does not let a traced-but-undefined ID inflate the numerator", () => {
// This is how a ratio exceeds 100%: a TRACES comment naming a typo'd or
// deleted requirement counted as covered.
const traced = ["UR-001", "DR-001", "DR-097"];
const cov = computeCoverage(traced, defined);
expect(cov.covered).toBe(2);
expect(cov.percent).toBe(50);
});
it("reports traced-but-undefined IDs as orphaned so they get fixed", () => {
const traced = ["UR-001", "DR-097", "JA-404"];
const cov = computeCoverage(traced, defined);
expect(cov.orphaned).toEqual(["DR-097", "JA-404"]);
});
it("has no orphans when every traced ID is defined", () => {
const cov = computeCoverage(["UR-001", "UR-002"], defined);
expect(cov.orphaned).toEqual([]);
});
it("ignores UT/IT test IDs entirely — they are a separate taxonomy", () => {
// UT/IT are defined in §4 of requirements.md, not among the four
// requirement types. Treating them as orphans buries real typos in ~60
// lines of noise, and counting them would corrupt the ratio.
const cov = computeCoverage(["UR-001", "UT-088", "IT-017"], defined);
expect(cov.orphaned).toEqual([]);
expect(cov.covered).toBe(1);
});
it("reports 0% rather than dividing by zero for an empty trace set", () => {
const cov = computeCoverage([], defined);
expect(cov.covered).toBe(0);
expect(cov.percent).toBe(0);
});
it("reports 0% rather than NaN when nothing is defined", () => {
const empty = {
UR: 0,
IR: 0,
DR: 0,
JA: 0,
total: 0,
ids: new Set<string>(),
testIds: new Set<string>(),
};
const cov = computeCoverage([], empty);
expect(cov.percent).toBe(0);
expect(Number.isNaN(cov.percent)).toBe(false);
});
it("reports exactly 100% when all defined requirements are traced, never above", () => {
const traced = ["UR-001", "UR-002", "DR-001", "DR-002"];
const cov = computeCoverage(traced, defined);
expect(cov.percent).toBe(100);
});
it("ignores duplicate traced IDs", () => {
const traced = ["UR-001", "UR-001", "UR-001"];
const cov = computeCoverage(traced, defined);
expect(cov.covered).toBe(1);
});
});
describe("generated matrix file links", () => {
// Regression: the generator emitted the repo-root-relative path as the href
// (`](src-tauri/src/…)`), but writes its output to docs/traceability.md — so
// every one of the ~2,800 links resolved to docs/src-tauri/… and 404'd, in
// the repo browser and on the published mdBook site. The markdown generator
// had no test at all, which is why it survived. UT-202.
//
// @req-test: UT-202
/** A minimal TracesData whose single entry points at a file that really exists. */
function fixture(file: string, line = 12): TracesData {
return {
timestamp: new Date().toISOString(),
totalFiles: 1,
totalTraces: 1,
requirements: {
"DR-093": [{ file, line, context: "export function x() {}" }],
},
byType: { UR: [], IR: [], DR: ["DR-093"], JA: [] },
} as TracesData;
}
/** Pull the href out of the first `- **File:** [`x`](href)` line. */
function firstHref(md: string): string {
const m = md.match(/^- \*\*File:\*\* \[`[^`]+`\]\(([^)]+)\)/m);
expect(m).not.toBeNull();
return m![1];
}
it("emits an href that resolves, from docs/, to a file that exists", () => {
// Use a real repo file so "exists on disk" is a genuine assertion.
const target = "scripts/extract-traces.ts";
const md = generateMarkdown(fixture(target));
const href = firstHref(md);
const [relPath] = href.split("#");
// traceability.md is written to docs/, so links resolve from there.
const resolved = path.resolve(HERE, "../docs", relPath);
expect(fs.existsSync(resolved)).toBe(true);
expect(resolved).toBe(path.resolve(HERE, "..", target));
});
it("keeps the repo-root-relative path as the visible link text", () => {
// The text is what a developer copies into an editor or a grep; only the
// href is rewritten for the docs/ location.
const md = generateMarkdown(fixture("src-tauri/src/lib.rs"));
expect(md).toContain("[`src-tauri/src/lib.rs`]");
expect(md).not.toContain("[`../src-tauri/src/lib.rs`]");
});
it("keeps the #Lnn line anchor on the href", () => {
const link = formatMatrixFileLink("scripts/extract-traces.ts", 427);
expect(link).toBe("[`scripts/extract-traces.ts`](../scripts/extract-traces.ts#L427)");
});
it("does not produce a bare repo-root href, which resolves to docs/<path>", () => {
const md = generateMarkdown(fixture("scripts/extract-traces.ts"));
const href = firstHref(md);
expect(href.startsWith("../")).toBe(true);
// The pre-fix output — the exact shape that produced docs/scripts/….
expect(href.startsWith("scripts/")).toBe(false);
});
});
describe("live requirements.md", () => {
it("parses the real file into a self-consistent denominator", () => {
// Guards the original regression: CI hardcoded UR/39, IR/24, DR/48, JA/3
// (total 114) while the real file had grown past 200, so the gate compared
// live traces against a frozen denominator and reported 158% coverage.
//
// Deliberately asserts *invariants*, not exact totals. Pinning the counts
// was tried and turned this test into a merge-conflict magnet: every
// requirement added on any branch had to edit the numbers here too, and the
// comment above them grew into a ledger of which branch contributed which
// row. Worse, the pins never guarded the actual defect — a stale denominator
// is caught by the sum-consistency check below, and the >100% ratio it
// produced is covered directly by the computeCoverage tests, on fixtures.
const md = fs.readFileSync(path.resolve(HERE, "../docs/requirements.md"), "utf-8");
const defined = countDefinedRequirements(md);
// The parser found real rows of every type: a section silently failing to
// parse would shrink the denominator and inflate coverage.
expect(defined.UR).toBeGreaterThan(0);
expect(defined.IR).toBeGreaterThan(0);
expect(defined.DR).toBeGreaterThan(0);
expect(defined.JA).toBeGreaterThan(0);
// The denominator is the sum of its parts, and every counted id is unique —
// double-counting one section is the other way a ratio breaks.
expect(defined.total).toBe(defined.UR + defined.IR + defined.DR + defined.JA);
expect(defined.ids.size).toBe(defined.total);
// The file is live, not frozen: it is well past the 114 the stale gate used.
expect(defined.total).toBeGreaterThan(200);
});
});
-645
View File
@@ -1,645 +0,0 @@
#!/usr/bin/env bun
/**
* Extract TRACES from source code and generate requirement mapping
*
* Usage:
* bun run scripts/extract-traces.ts
* bun run scripts/extract-traces.ts --format json
* bun run scripts/extract-traces.ts --format markdown > docs/traceability.md
*/
import * as fs from "fs";
import * as path from "path";
import { execSync } from "child_process";
interface TraceEntry {
file: string;
line: number;
context: string;
requirements: string[];
}
interface RequirementMapping {
[reqId: string]: TraceEntry[];
}
export interface TracesData {
timestamp: string;
totalFiles: number;
totalTraces: number;
requirements: RequirementMapping;
byType: {
UR: string[];
IR: string[];
DR: string[];
JA: string[];
};
/** Requirements *defined* in requirements.md — the coverage denominators. */
defined?: { UR: number; IR: number; DR: number; JA: number; total: number };
coverage?: CoverageResult;
/** Traced IDs of any type that requirements.md does not define. */
dangling?: string[];
}
/**
* Minimum overall requirement coverage the traceability gate accepts.
*
* **Ratchet policy: this number only ever goes up.** It is set a few points
* below the coverage actually achieved, so a real regression trips it instead of
* being absorbed by slack. It sat at 50 while true coverage was 86%, which meant
* half the matrix could rot before CI noticed. When coverage rises durably,
* raise this to sit just under the new figure. Do **not** lower it to make a
* failing build pass add the missing TRACES comments instead.
*
* `.gitea/workflows/traceability-check.yml` carries the same number as
* `MIN_THRESHOLD`; `scripts/extract-traces.test.ts` fails if the two drift.
*
* TRACES: | DR-093
*/
export const MIN_COVERAGE_PERCENT = 89;
// Repo root, derived from this script's location (scripts/ -> repo root).
// Must NOT be hardcoded to a developer's machine, or CI checkouts see no files.
//
// `import.meta.dir` is a Bun extension and is undefined when this module is
// imported by vitest (which runs it as an ordinary ESM module), so fall back to
// import.meta.url — this file must stay importable for extract-traces.test.ts.
const SCRIPT_DIR = import.meta.dir ?? path.dirname(new URL(import.meta.url).pathname);
const BASE_DIR = path.resolve(SCRIPT_DIR, "..");
const TRACES_PATTERN = /TRACES:\s*([^\n]+)/gi;
const REQ_ID_PATTERN = /([A-Z]{2})-(\d{3})/g;
function extractRequirementIds(tracesString: string): string[] {
const matches = [...tracesString.matchAll(REQ_ID_PATTERN)];
return matches.map((m) => `${m[1]}-${m[2]}`);
}
/**
* Tooling files that implement a requirement.
*
* The walker below only visits `src/`, `src-tauri/src/` and `scripts/`, and only
* picks up `.ts`/`.svelte`/`.rs`. That made every requirement implemented by
* *configuration* invisible to the matrix that measures it DR-205
* (eslint.config.js), DR-206 (rust-toolchain.toml), DR-207 (the pre-commit
* hook) and DR-216 (deny.toml) all carry TRACES comments that nothing read, so
* each was counted as uncovered while being covered.
*
* An explicit list rather than "also scan .toml/.js/.yml": most config files in
* this repo implement nothing, and one class of file is actively dangerous to
* scan see `isTracedSourceFile`.
*/
const TOOLING_FILES = new Set([
"eslint.config.js",
"vitest.config.ts",
"scripts/hooks/pre-commit",
"src-tauri/deny.toml",
"src-tauri/rust-toolchain.toml",
// Shell tooling that implements a requirement. Named individually rather than
// globbing scripts/*.sh: most of these scripts implement nothing, and the
// point of the list is that adding a file is a decision.
"scripts/install-hooks.sh",
"scripts/check-release-artifacts.sh",
"scripts/build-desktop-linux.sh",
"scripts/build-windows-cross.sh",
"scripts/restore-ownership.sh",
]);
/** Directory names that never contain hand-written traced source. */
const EXCLUDED_SEGMENTS = new Set([
"node_modules",
"target",
"build",
".git",
".svelte-kit",
"docs-site",
// Tauri regenerates src-tauri/gen/ on every android/desktop init; the
// canonical Android sources live in src-tauri/android/ and are synced into it.
"gen",
]);
/**
* Decide whether a repo-relative path should be scanned for TRACES comments.
*
* Exported for scripts/extract-traces.test.ts the file-walking half needs a
* filesystem, this half is a pure decision and is where the mistakes live.
*
* Deliberately excluded:
* - `docs/requirements.md` *defines* IDs and `docs/traceability.md` is
* generated from traces; scanning either would make requirements trace to
* themselves.
* - `.gitea/workflows/*.yml` traceability-check.yml explains the gate in
* prose, quoting "a `TRACES:` comment" on the same line as example IDs that
* are deliberately undefined. The extractor would read those as real traces
* and then fail its own dangling-ID check.
*/
export function isTracedSourceFile(relativePath: string): boolean {
const p = relativePath.split(path.sep).join("/");
if (p.split("/").some((segment) => EXCLUDED_SEGMENTS.has(segment))) {
return false;
}
if (TOOLING_FILES.has(p)) {
return true;
}
const isSourceExtension = p.endsWith(".ts") || p.endsWith(".svelte") || p.endsWith(".rs");
if (!isSourceExtension) {
return false;
}
return p.startsWith("src/") || p.startsWith("src-tauri/src/") || p.startsWith("scripts/");
}
function getAllSourceFiles(): string[] {
const baseDir = BASE_DIR;
// `scripts` is scanned too: build tooling implements requirements (e.g.
// DR-093, the coverage engine itself) and would otherwise be invisible to the
// very matrix it generates.
const patterns = ["src", "src-tauri/src", "scripts"];
const files: string[] = [];
function walkDir(dir: string) {
try {
const entries = fs.readdirSync(dir, { withFileTypes: true });
for (const entry of entries) {
const fullPath = path.join(dir, entry.name);
const relativePath = path.relative(baseDir, fullPath);
// Directory pruning still happens here so the walk does not descend
// into node_modules/target at all; isTracedSourceFile repeats the rule
// for individual files (and is the version under test).
if (entry.isDirectory() && !isTracedSourceFile(path.join(relativePath, "x.ts"))) {
continue;
}
if (entry.isDirectory()) {
walkDir(fullPath);
} else if (isTracedSourceFile(relativePath)) {
files.push(fullPath);
}
}
} catch (error) {
// Skip directories we can't read
}
}
for (const pattern of patterns) {
const dir = path.join(baseDir, pattern);
if (fs.existsSync(dir)) {
walkDir(dir);
}
}
// eslint.config.js, deny.toml and rust-toolchain.toml sit at the repo root or
// in src-tauri/ rather than under a walked root, so they are added by name.
for (const toolingFile of TOOLING_FILES) {
const fullPath = path.join(baseDir, toolingFile);
if (fs.existsSync(fullPath) && !files.includes(fullPath)) {
files.push(fullPath);
}
}
return files;
}
function extractTraces(): TracesData {
const requirementMap: RequirementMapping = {};
const byType: Record<string, Set<string>> = {
UR: new Set(),
IR: new Set(),
DR: new Set(),
JA: new Set(),
};
let totalTraces = 0;
const baseDir = BASE_DIR;
const files = getAllSourceFiles();
for (const fullPath of files) {
try {
const content = fs.readFileSync(fullPath, "utf-8");
const lines = content.split("\n");
const relativePath = path.relative(baseDir, fullPath);
let match;
TRACES_PATTERN.lastIndex = 0;
while ((match = TRACES_PATTERN.exec(content)) !== null) {
const tracesStr = match[1];
const reqIds = extractRequirementIds(tracesStr);
if (reqIds.length === 0) continue;
// Find line number
const beforeMatch = content.substring(0, match.index);
const lineNum = beforeMatch.split("\n").length - 1;
// Get context (function/class name if available)
let context = "Unknown";
for (let i = lineNum; i >= Math.max(0, lineNum - 10); i--) {
const line = lines[i];
if (
line.includes("function ") ||
line.includes("export const ") ||
line.includes("pub fn ") ||
line.includes("pub enum ") ||
line.includes("pub struct ") ||
line.includes("impl ") ||
line.includes("async function ") ||
line.includes("class ") ||
line.includes("export type ")
) {
context = line
.trim()
.replace(/^\s*\/\/\s*/, "")
.replace(/^\s*\/\*\*\s*/, "");
break;
}
}
const entry: TraceEntry = {
file: relativePath,
line: lineNum + 1,
context,
requirements: reqIds,
};
for (const reqId of reqIds) {
if (!requirementMap[reqId]) {
requirementMap[reqId] = [];
}
requirementMap[reqId].push(entry);
// Track by type
const type = reqId.substring(0, 2);
if (byType[type]) {
byType[type].add(reqId);
}
}
totalTraces++;
}
} catch (error) {
// Skip files we can't read
}
}
return {
timestamp: new Date().toISOString(),
totalFiles: files.length,
totalTraces,
requirements: requirementMap,
byType: {
UR: Array.from(byType["UR"]).sort(),
IR: Array.from(byType["IR"]).sort(),
DR: Array.from(byType["DR"]).sort(),
JA: Array.from(byType["JA"]).sort(),
},
};
}
// ---------------------------------------------------------------------------
// Coverage: how many *defined* requirements are actually traced.
//
// The denominators MUST be derived from requirements.md, never hardcoded. The
// CI gate previously divided by frozen literals (UR/39, IR/24, DR/48, JA/3,
// total 114) while the real file had grown to 211 requirements, so it reported
// 158% coverage and the 50% threshold became unreachable — the gate could not
// fail. See docs/traceability-ci.md, "Coverage Thresholds".
//
// TRACES: | DR-093
// ---------------------------------------------------------------------------
export interface DefinedRequirements {
UR: number;
IR: number;
DR: number;
JA: number;
total: number;
/** Requirement IDs (UR/IR/DR/JA) — the coverage denominator. */
ids: Set<string>;
/** Test IDs (UT/IT) from §4. A separate taxonomy: never part of coverage. */
testIds: Set<string>;
}
export interface CoverageResult {
covered: number;
total: number;
percent: number;
/** Traced in code but not defined in requirements.md (typo, or deleted req). */
orphaned: string[];
}
/**
* A requirement is *defined* only where its ID is the leading cell of a markdown
* table row: `| DR-001 | … |`.
*
* This deliberately ignores IDs in the "Traces To" column and in prose a
* naive scan for /DR-\d{3}/ counts those as definitions and inflates the
* denominator. IDs are deduplicated because requirements.md lists each UR twice
* (once in §1 as a definition, again in §3's traceability matrix), which would
* otherwise double the UR count from 61 to 121.
*
* TRACES: | DR-093
*/
export function countDefinedRequirements(markdown: string): DefinedRequirements {
const ids = new Set<string>();
const testIds = new Set<string>();
const ROW_ID = /^\|\s*(UR|IR|DR|JA|UT|IT)-(\d{3})\s*\|/;
for (const line of markdown.split("\n")) {
const match = line.match(ROW_ID);
if (!match) continue;
const id = `${match[1]}-${match[2]}`;
// UT/IT rows live in §4 and are collected separately: they must not enter
// the coverage denominator, but they still need to exist for a `TRACES:`
// comment to be allowed to name them (see findDanglingIds).
if (match[1] === "UT" || match[1] === "IT") testIds.add(id);
else ids.add(id);
}
const countOf = (type: string) => [...ids].filter((id) => id.startsWith(`${type}-`)).length;
return {
UR: countOf("UR"),
IR: countOf("IR"),
DR: countOf("DR"),
JA: countOf("JA"),
total: ids.size,
ids,
testIds,
};
}
/**
* Every traced ID that requirements.md defines nowhere a typo, a rename that
* missed a call site, or a reference to a deleted requirement.
*
* This is broader than `CoverageResult.orphaned`, which only ever considers the
* four requirement types because a UT/IT entry among the orphans would corrupt
* the coverage ratio's reporting. Dangling detection has no such constraint, so
* it checks all six ID types against both defined sets. Before it existed, the
* extractor accepted any well-formed ID silently: `DR-189` and `UT-188` were
* referenced from `controlsVisibility.ts` and `VideoPlayer.svelte` for months
* without being defined anywhere, and nothing reported it.
*
* TRACES: | DR-093
*/
export function findDanglingIds(tracedIds: string[], defined: DefinedRequirements): string[] {
const KNOWN_TYPE = /^(UR|IR|DR|JA|UT|IT)-\d{3}$/;
const dangling = new Set(
tracedIds
.filter((id) => KNOWN_TYPE.test(id))
.filter((id) => !defined.ids.has(id) && !defined.testIds.has(id)),
);
return [...dangling].sort();
}
/**
* Coverage is the *intersection* of traced and defined IDs over defined IDs.
*
* Using the raw traced count as the numerator is what lets a ratio exceed 100%:
* a TRACES comment naming a requirement that no longer exists would count as
* covered. Those IDs are reported as `orphaned` so they get fixed rather than
* silently counted or silently dropped.
*
* TRACES: | DR-093
*/
export function computeCoverage(tracedIds: string[], defined: DefinedRequirements): CoverageResult {
// Only the four *requirement* types participate in coverage. UT/IT are test
// identifiers defined in §4 of requirements.md — a different taxonomy, and
// flagging them as orphans would bury real typos in ~60 lines of noise.
const isRequirement = (id: string) => /^(UR|IR|DR|JA)-\d{3}$/.test(id);
const traced = new Set(tracedIds.filter(isRequirement));
const covered = [...traced].filter((id) => defined.ids.has(id));
const orphaned = [...traced].filter((id) => !defined.ids.has(id)).sort();
return {
covered: covered.length,
total: defined.total,
percent: defined.total === 0 ? 0 : Math.round((covered.length / defined.total) * 100),
orphaned,
};
}
/** Read requirements.md from the repo and count what it defines. */
export function readDefinedRequirements(): DefinedRequirements {
const reqPath = path.join(BASE_DIR, "docs", "requirements.md");
return countDefinedRequirements(fs.readFileSync(reqPath, "utf-8"));
}
/**
* Path prefix that turns a repo-root-relative file path into a link target that
* resolves from `docs/traceability.md`, where this markdown is written.
*
* The generated matrix lives one directory below the repo root, so a bare
* `src-tauri/src/player/mod.rs` href resolves to `docs/src-tauri/…` and 404s
* in the repo browser and on the published mdBook site alike. Every file link
* in the matrix was dead for this reason. The *display text* stays
* repo-root-relative (that is the path a developer types and greps for); only
* the href is rewritten.
*
* TRACES: | DR-093 | UT-202
*/
export const MATRIX_LINK_PREFIX = "../";
/**
* Build the ``[`path`](href#Lnn)`` link used for one trace entry in the matrix.
*
* Exported so extract-traces.test.ts can resolve a generated href against
* `docs/` and assert the target exists on disk.
*
* TRACES: | DR-093 | UT-202
*/
export function formatMatrixFileLink(file: string, line: number): string {
return `[\`${file}\`](${MATRIX_LINK_PREFIX}${file}#L${line})`;
}
export function generateMarkdown(data: TracesData): string {
let md = `# Code Traceability Matrix
**Generated:** ${new Date(data.timestamp).toLocaleString()}
## Summary
- **Total Files Scanned:** ${data.totalFiles}
- **Total TRACES Found:** ${data.totalTraces}
- **Requirements Covered:**
- User Requirements (UR): ${data.byType.UR.length}
- Integration Requirements (IR): ${data.byType.IR.length}
- Development Requirements (DR): ${data.byType.DR.length}
- Jellyfin API Requirements (JA): ${data.byType.JA.length}
## Requirements by Type
### User Requirements (UR)
\`\`\`
${data.byType.UR.join(", ")}
\`\`\`
### Integration Requirements (IR)
\`\`\`
${data.byType.IR.join(", ")}
\`\`\`
### Development Requirements (DR)
\`\`\`
${data.byType.DR.join(", ")}
\`\`\`
### Jellyfin API Requirements (JA)
\`\`\`
${data.byType.JA.join(", ")}
\`\`\`
## Detailed Mapping
`;
// Sort requirements by ID
const sortedReqs = Object.keys(data.requirements).sort((a, b) => {
const typeA = a.substring(0, 2);
const typeB = b.substring(0, 2);
const typeOrder = { UR: 0, IR: 1, DR: 2, JA: 3 };
if (typeOrder[typeA] !== typeOrder[typeB]) {
return (typeOrder[typeA] || 4) - (typeOrder[typeB] || 4);
}
return a.localeCompare(b);
});
for (const reqId of sortedReqs) {
const entries = data.requirements[reqId];
md += `### ${reqId}\n\n`;
md += `**Locations:** ${entries.length} file(s)\n\n`;
for (const entry of entries) {
md += `- **File:** ${formatMatrixFileLink(entry.file, entry.line)}\n`;
md += ` - **Line:** ${entry.line}\n`;
const contextPreview = entry.context.substring(0, 70);
md += ` - **Context:** \`${contextPreview}${entry.context.length > 70 ? "..." : ""}\`\n`;
}
md += "\n";
}
return md;
}
function generateJson(data: TracesData): string {
return JSON.stringify(data, null, 2);
}
/**
* Human-readable coverage report; exits non-zero below the threshold so this is
* runnable as a local gate (`bun run traces:coverage`), not just in CI.
*
* TRACES: | DR-093
*/
function reportCoverage(data: TracesData, minThreshold: number): number {
const defined = data.defined!;
const cov = data.coverage!;
const definedIds = readDefinedRequirements().ids;
console.log("📋 Requirement coverage (traced / defined):");
for (const type of ["UR", "IR", "DR", "JA"] as const) {
const traced = data.byType[type].filter((id) => definedIds.has(id)).length;
console.log(` ${type}: ${traced} / ${defined[type]}`);
}
console.log("");
console.log(`📈 Overall: ${cov.covered} / ${cov.total} (${cov.percent}%)`);
if (cov.orphaned.length > 0) {
console.log("");
console.log(`⚠️ Traced but not defined in requirements.md: ${cov.orphaned.join(", ")}`);
console.log(" Fix the TRACES comment or add the requirement.");
}
if (data.dangling && data.dangling.length > 0) {
console.log("");
console.log(
`⚠️ Dangling IDs (incl. UT/IT): ${data.dangling.join(", ")} — run \`bun run traces:validate\`.`,
);
}
// A ratio above 100% means the computation is broken (the condition that hid
// the stale-denominator bug for so long). Fail loudly rather than report it.
if (cov.percent > 100) {
console.log("");
console.log(`❌ Coverage > 100% — the gate is miscomputing.`);
return 1;
}
if (cov.percent < minThreshold) {
console.log("");
console.log(`❌ Coverage (${cov.percent}%) is below minimum (${minThreshold}%)`);
return 1;
}
console.log("");
console.log(`✅ Coverage is acceptable (${cov.percent}% >= ${minThreshold}%)`);
return 0;
}
/**
* Hard gate on dangling IDs: a `TRACES:` comment may only name an ID that
* requirements.md actually defines. Prints every offender with the files that
* reference it, so the fix is mechanical.
*
* TRACES: | DR-093
*/
function reportDangling(data: TracesData): number {
const dangling = data.dangling ?? [];
if (dangling.length === 0) {
console.log("✅ All traced IDs are defined in docs/requirements.md");
return 0;
}
console.log("❌ TRACES reference IDs that docs/requirements.md does not define:");
console.log("");
for (const id of dangling) {
const files = [...new Set((data.requirements[id] ?? []).map((e) => e.file))].sort();
console.log(` ${id}`);
for (const file of files) console.log(` ${file}`);
}
console.log("");
console.log("Fix each one by either:");
console.log(" • correcting the ID in the TRACES comment (typo/rename), or");
console.log(" • adding the requirement as a table row in docs/requirements.md.");
return 1;
}
// Main — guarded so this module stays importable from extract-traces.test.ts.
if (import.meta.main) {
const args = process.argv.slice(2);
const format = args.includes("--format") ? args[args.indexOf("--format") + 1] : "markdown";
console.error("🔍 Extracting TRACES from codebase...");
const data = extractTraces();
const defined = readDefinedRequirements();
const allTraced = Object.keys(data.requirements);
data.defined = {
UR: defined.UR,
IR: defined.IR,
DR: defined.DR,
JA: defined.JA,
total: defined.total,
};
data.coverage = computeCoverage(allTraced, defined);
data.dangling = findDanglingIds(allTraced, defined);
if (format === "json") {
console.log(generateJson(data));
} else if (format === "coverage") {
process.exit(reportCoverage(data, MIN_COVERAGE_PERCENT));
} else if (format === "validate") {
process.exit(reportDangling(data));
} else {
console.log(generateMarkdown(data));
}
console.error(`\n✅ Complete! Found ${data.totalTraces} TRACES across ${data.totalFiles} files`);
}
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#!/bin/bash
#
# Generate traceability matrix in Markdown format
#
echo "# Requirements Traceability Matrix"
echo ""
echo "**Generated**: $(date '+%Y-%m-%d %H:%M:%S')"
echo ""
echo "| Requirement | Files Implementing | Status | Notes |"
echo "|-------------|--------------------|--------|-------|"
requirements=$(grep -E "^\| (UR|IR|DR|JA)-[0-9]+" README.md | sed -E 's/^\| ([A-Z]+-[0-9]+).*/\1/' | sort -u)
for req in $requirements; do
files=$(grep -rl "@req: $req" src-tauri/ src/ 2>/dev/null | \
sed 's|src-tauri/src/||; s|src/||' | \
paste -sd, -)
partial_files=$(grep -rl "@req-partial: $req" src-tauri/ src/ 2>/dev/null | wc -l)
planned=$(grep -rl "@req-planned: $req" src-tauri/ src/ 2>/dev/null | wc -l)
if [ -n "$files" ]; then
status="✅ Done"
notes=""
elif [ "$partial_files" -gt 0 ]; then
status="🔶 Partial"
notes="Platform-specific"
elif [ "$planned" -gt 0 ]; then
status="📋 Planned"
notes="Not implemented"
else
status="❌ Missing"
notes="No implementation"
fi
echo "| $req | ${files:-N/A} | $status | $notes |"
done
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#!/usr/bin/env bash
# JellyTau pre-commit hook — the fast half of CLAUDE.md's "Before Committing"
# list, enforced instead of remembered.
#
# TRACES: | DR-207
#
# Install with: bun run hooks:install (sets core.hooksPath=scripts/hooks)
# Skip once with: git commit --no-verify
#
# What runs here is deliberately limited to gates that finish in seconds:
#
# bun run check svelte-check (types)
# bun run test vitest, single pass
# scripts/check-frontend-boundary.sh domain-taxonomy tripwire (DR-094)
# bun run format:check prettier
# bun run lint --max-warnings=N eslint, warning-count ratchet
# cargo fmt --all -- --check only when src-tauri/ is staged
#
# NOT here, on purpose: `cargo clippy` and `cargo test`. Both take minutes on a
# cold target dir, which turns every commit into a coffee break and trains
# people to reach for --no-verify. CI (.gitea/workflows/build-and-test.yml) is
# where those run; `bun run test:all` is the local equivalent.
set -uo pipefail
# Merge and rebase commits carry someone else's changes, and conflict resolution
# is exactly when a slow gate is least welcome. Let them through — CI still
# gates the merge result.
GIT_DIR_PATH="$(git rev-parse --git-dir 2>/dev/null)" || exit 0
if [ -e "$GIT_DIR_PATH/MERGE_HEAD" ] ||
[ -d "$GIT_DIR_PATH/rebase-merge" ] ||
[ -d "$GIT_DIR_PATH/rebase-apply" ] ||
[ -e "$GIT_DIR_PATH/CHERRY_PICK_HEAD" ]; then
echo "pre-commit: merge/rebase in progress — skipping checks (CI still gates the result)."
exit 0
fi
# Nothing staged (e.g. `git commit --amend` that only edits the message): nothing
# to check.
STAGED="$(git diff --cached --name-only --diff-filter=ACMR)"
if [ -z "$STAGED" ]; then
exit 0
fi
REPO_ROOT="$(git rev-parse --show-toplevel)"
cd "$REPO_ROOT" || exit 1
FAILED=0
run_gate() {
label="$1"
shift
echo ""
echo "🔎 pre-commit: $label"
if ! "$@"; then
echo "❌ pre-commit: $label failed"
FAILED=1
fi
}
run_gate "svelte-check (bun run check)" bun run check
run_gate "frontend tests (bun run test)" bun run test
run_gate "frontend/backend boundary" bash scripts/check-frontend-boundary.sh
run_gate "formatting (bun run format:check)" bun run format:check
# Same ratchet as the CI step in build-and-test.yml — keep the two numbers equal,
# or a commit passes here and fails there.
run_gate "lint (bun run lint)" bun run lint --max-warnings=159
# rustfmt only matters when Rust actually changed, and `cargo fmt --check` is
# cheap (no compilation) whenever it does.
if printf '%s\n' "$STAGED" | grep -q '^src-tauri/'; then
if command -v cargo >/dev/null 2>&1; then
echo ""
echo "🔎 pre-commit: rustfmt (src-tauri/ is staged)"
if ! (cd src-tauri && cargo fmt --all -- --check); then
echo "❌ pre-commit: cargo fmt --all -- --check failed"
echo " fix with: cd src-tauri && cargo fmt"
FAILED=1
fi
else
echo "⚠️ pre-commit: src-tauri/ staged but cargo is not on PATH — skipping rustfmt."
fi
fi
if [ "$FAILED" -ne 0 ]; then
echo ""
echo "🛑 pre-commit checks failed. Fix them, or bypass deliberately with:"
echo " git commit --no-verify"
exit 1
fi
echo ""
echo "✅ pre-commit checks passed."
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#!/usr/bin/env bash
# Point git at the repo's tracked hooks directory.
#
# TRACES: | DR-207
#
# bun run hooks:install # or: ./scripts/install-hooks.sh
#
# `core.hooksPath` is used rather than copying files into .git/hooks so the
# hooks stay version-controlled: an update to scripts/hooks/pre-commit reaches
# everyone on their next pull instead of needing a re-install.
#
# The setting is local to this clone (git config, not committed). To undo:
# git config --unset core.hooksPath
set -euo pipefail
REPO_ROOT="$(git rev-parse --show-toplevel)"
cd "$REPO_ROOT"
HOOKS_DIR="scripts/hooks"
if [ ! -d "$HOOKS_DIR" ]; then
echo "$HOOKS_DIR does not exist — are you in the JellyTau repo?" >&2
exit 1
fi
# Git refuses to run a hook that is not executable, and the bit is easy to lose
# on a fresh checkout on some filesystems.
chmod +x "$HOOKS_DIR"/* 2>/dev/null || true
git config core.hooksPath "$HOOKS_DIR"
echo "✅ core.hooksPath = $(git config core.hooksPath)"
echo ""
echo "Installed hooks:"
for hook in "$HOOKS_DIR"/*; do
[ -f "$hook" ] || continue
echo " - $(basename "$hook")"
done
echo ""
echo "pre-commit runs: bun run check, bun run test, check-frontend-boundary.sh,"
echo "and cargo fmt --check when src-tauri/ is staged."
echo "Bypass a single commit with: git commit --no-verify"
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#!/bin/bash
# View Android logcat output filtered for the app.
#
# Usage: ./scripts/logcat.sh [debug|release] (default: debug)
#
# The debug build has applicationIdSuffix ".debug" so it can be installed
# alongside a release build; pick the package to follow accordingly.
set -e
BUILD_TYPE="${1:-debug}"
if [ "$BUILD_TYPE" = "release" ]; then
APP_PACKAGE="com.dtourolle.jellytau"
else
APP_PACKAGE="com.dtourolle.jellytau.debug"
fi
echo "📱 Showing logcat for $APP_PACKAGE"
echo "Press Ctrl+C to stop"
echo ""
# Prefer PID-scoped output when the app is running — it drops the noise that a
# text grep can't. Fall back to the old keyword filter when it isn't (so you can
# start the script first and then launch the app).
PID="$(adb shell pidof "$APP_PACKAGE" 2>/dev/null | tr -d '\r\n' | awk '{print $1}')"
if [ -n "$PID" ]; then
echo " (attached to pid $PID)"
adb logcat --pid="$PID"
else
echo " (app not running — falling back to keyword filter)"
adb logcat | grep -i "$APP_PACKAGE\|jellytau\|tauri\|rust"
fi
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@@ -1,58 +0,0 @@
/**
* Tests for release-note derivation.
*
* TRACES: | DR-219 | UT-210
*
* The bug these were written against: `bun run release:notes v0.9.1..HEAD`
* listed *every user requirement in the project* as a feature of the release.
* The range contained a repo-wide `prettier --write` sweep, so `git diff
* --name-only` reported 199 files, their TRACES comments resolved to nearly the
* whole matrix, and the result claimed one release had added the entire
* application.
*
* That mattered more than it looked: build-release.yml now generates the
* published release body from this script, so the noise would have shipped.
*/
import { describe, it, expect } from "vitest";
import { isCosmeticCommit } from "./release-notes";
describe("isCosmeticCommit", () => {
it("treats a formatting sweep as cosmetic", () => {
// The actual commit that triggered this.
expect(isCosmeticCommit("chore(format): run prettier over src/ and scripts/")).toBe(true);
expect(isCosmeticCommit("style: reindent the player module")).toBe(true);
expect(isCosmeticCommit("style(player): reindent")).toBe(true);
});
it("treats a lockfile-only dependency bump as cosmetic", () => {
// Touches package.json/bun.lock, which carry no TRACES, but a `chore(deps)`
// that also edits source would still be caught by that source file.
expect(isCosmeticCommit("chore(deps): bump vitest to 4.1.11")).toBe(true);
});
it("does NOT treat ordinary work as cosmetic", () => {
expect(isCosmeticCommit("fix(player): restart the hero banner timer")).toBe(false);
expect(isCosmeticCommit("feat(updater): in-app update on desktop")).toBe(false);
expect(isCosmeticCommit("ci: make the frontend gates real")).toBe(false);
expect(isCosmeticCommit("docs: add SECURITY.md")).toBe(false);
});
it("does not mistake a chore that is not formatting for a formatting one", () => {
// `chore(release)` bumps versions and must still be attributable; a bare
// `chore:` could be anything, so it is NOT skipped by default.
expect(isCosmeticCommit("chore(release): v0.9.2")).toBe(false);
expect(isCosmeticCommit("chore: tidy up the queue helper")).toBe(false);
});
it("is not fooled by the word format appearing later in a subject", () => {
// A real fix to formatting *code* is not a cosmetic commit.
expect(isCosmeticCommit("fix(duration): format times over 24 hours correctly")).toBe(false);
expect(isCosmeticCommit("feat: add a format picker to settings")).toBe(false);
});
it("handles an empty or malformed subject without throwing", () => {
expect(isCosmeticCommit("")).toBe(false);
expect(isCosmeticCommit(" ")).toBe(false);
});
});
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#!/usr/bin/env bun
/**
* release-notes.ts turn a commit range into capability-level release notes
* using the TRACES graph instead of raw commit subjects.
*
* Usage:
* bun run scripts/release-notes.ts [<range>]
* bun run scripts/release-notes.ts v0.0.15..HEAD
*
* With no argument it uses <latest tag>..HEAD (or the whole history if untagged).
*
* How it works:
* 1. `git diff --name-only <range>` files the range changed.
* 2. Read each changed file's `TRACES:` comments requirement IDs.
* 3. Resolve IDs to descriptions from docs/requirements.md.
* 4. Group: UR Features, DR/IR Improvements. Deduped, so many commits
* touching one requirement collapse to one line.
*
* This is a drafting aid for docs/release-checklist.md review the output,
* it does not invent descriptions for untraced changes (those are listed
* separately so nothing is silently dropped).
*/
import { execSync } from "node:child_process";
import { readFileSync, existsSync } from "node:fs";
const TRACE_RE = /TRACES:\s*([^\n*]+)/g;
const ID_RE = /\b(UR|IR|DR|JA|UT|IT)-\d+\b/g;
const REQ_ROW_RE = /^\|\s*((?:UR|IR|DR|JA)-\d+)\s*\|\s*([^|]+?)\s*\|/;
function sh(cmd: string): string {
return execSync(cmd, { encoding: "utf8" }).trim();
}
function defaultRange(): string {
try {
const tag = sh("git describe --tags --abbrev=0");
return `${tag}..HEAD`;
} catch {
return ""; // no tags: fall through to whole-history diff
}
}
/** Map requirement ID → human description, parsed from docs/requirements.md. */
function loadRequirementDescriptions(): Map<string, string> {
const map = new Map<string, string>();
const text = readFileSync("docs/requirements.md", "utf8");
for (const line of text.split("\n")) {
const m = line.match(REQ_ROW_RE);
// First definition wins: the descriptive tables come before the later
// cross-reference tables, whose cells hold linked IDs (or "-"), not prose.
if (m && !map.has(m[1])) map.set(m[1], m[2].trim());
}
return map;
}
/**
* Commit subjects whose changes carry no requirement meaning.
*
* `chore(format)` / `style` rewrite files without changing behaviour;
* `chore(deps)` moves lockfiles. Anything else including a bare `chore:` and
* `chore(release):` is assumed to mean something and is kept.
*
* Anchored at the start of the subject on purpose: "fix(duration): format times
* over 24 hours" is a real fix to formatting *code*, not a formatting commit.
*/
const COSMETIC_SUBJECT = /^(chore\(format\)|chore\(deps\)|style)(\([^)]*\))?\s*:/i;
/**
* Does this commit subject describe a change with no requirement meaning?
*
* Exported for scripts/release-notes.test.ts.
*
* TRACES: | DR-219
*/
export function isCosmeticCommit(subject: string): boolean {
return COSMETIC_SUBJECT.test(subject.trim());
}
/**
* Files the range changed, excluding those touched only by cosmetic commits.
*
* Why not a plain `git diff --name-only <range>`: that is what this did, and a
* single repo-wide `prettier --write` inside the range made it report 199 files
* whose TRACES comments resolved to nearly the entire requirement matrix. The
* generated notes for v0.9.2 claimed the release had added the whole
* application and build-release.yml publishes this output, so the noise would
* have shipped.
*
* Walking commit by commit and skipping the cosmetic ones keeps a file that a
* sweep *and* a real change both touched: it is still listed by the real
* commit. Only files touched exclusively by cosmetic commits drop out, which is
* exactly the intent.
*
* Merge commits produce no output from `git diff-tree` without `-m`, and are
* skipped deliberately: everything they merge is already in the range as its
* own commit, so including them would double-count.
*/
function changedFiles(range: string): string[] {
// Untagged repo: describe everything currently traced.
if (!range) {
return sh("git ls-files")
.split("\n")
.filter((f) => f && existsSync(f));
}
// NUL between hash and subject so a subject containing anything at all is safe.
const log = sh(`git log --no-merges --format=%H%x00%s ${range}`);
if (!log) return [];
const files = new Set<string>();
let skipped = 0;
for (const line of log.split("\n")) {
const [sha, ...subjectParts] = line.split("\u0000");
const subject = subjectParts.join("\u0000");
if (!sha) continue;
if (isCosmeticCommit(subject)) {
skipped++;
continue;
}
for (const f of sh(`git diff-tree --no-commit-id --name-only -r ${sha}`).split("\n")) {
if (f && existsSync(f)) files.add(f);
}
}
if (skipped > 0) {
// Say what was dropped rather than silently reporting a smaller set.
console.error(
`️ Skipped ${skipped} cosmetic commit(s) (formatting/deps) when deriving notes.`,
);
}
return [...files];
}
/** Collect requirement IDs referenced by TRACES comments in the given files. */
function idsFromFiles(files: string[]): Set<string> {
const ids = new Set<string>();
for (const file of files) {
let content: string;
try {
content = readFileSync(file, "utf8");
} catch {
continue;
}
for (const trace of content.matchAll(TRACE_RE)) {
for (const id of trace[1].matchAll(ID_RE)) ids.add(id[0]);
}
}
return ids;
}
function main() {
const range = process.argv[2] ?? defaultRange();
const descriptions = loadRequirementDescriptions();
const files = changedFiles(range);
const ids = idsFromFiles(files);
const features: string[] = []; // UR
const improvements: string[] = []; // DR / IR
const unknown: string[] = []; // traced but not in requirements.md
for (const id of [...ids].sort()) {
const desc = descriptions.get(id);
if (id.startsWith("UT") || id.startsWith("IT")) continue; // tests aren't notes
if (!desc) {
if (!id.startsWith("UT") && !id.startsWith("IT")) unknown.push(id);
continue;
}
const line = `- ${desc} (${id})`;
if (id.startsWith("UR")) features.push(line);
else improvements.push(line);
}
const header = range || "(entire history — no tags found)";
const out: string[] = [`## Release notes — ${header}`, ""];
if (features.length) out.push("### ✨ Features", ...features, "");
if (improvements.length) out.push("### 🚀 Improvements", ...improvements, "");
if (unknown.length)
out.push(
"### ⚠️ Traced IDs missing from requirements.md",
...unknown.map((id) => `- ${id}`),
"",
);
const untraced = files.filter((f) => {
try {
return !/TRACES:/.test(readFileSync(f, "utf8"));
} catch {
return false;
}
});
if (untraced.length)
out.push(
`### 📝 Changed files without TRACES (${untraced.length}) — review manually`,
...untraced.map((f) => `- ${f}`),
"",
);
if (!features.length && !improvements.length)
out.push("_No traced requirements in this range._", "");
console.log(out.join("\n"));
}
// Guarded so this module stays importable from release-notes.test.ts.
if (import.meta.main) {
main();
}
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#!/usr/bin/env bash
# Give build artifacts back to the human who owns the working tree.
#
# TRACES: | DR-213
#
# The containerised builds (docker-compose.yml: desktop-linux-build,
# windows-cross, android-build, test, dev) bind-mount the repo at /app and run
# as root, because their caches live at /root/.cargo and /root/.bun. Everything
# they write into src-tauri/target and dist/ is therefore root-owned *on the
# host* — and it accumulates: one audit found 11,124 such files, which is enough
# to make `cargo clean` and scripts/clean.sh fail with EACCES for the developer.
# Worse, a plain `cargo build` then dies part-way through, because build scripts
# compile for the host and land in target/debug even during a cross-build.
#
# Running the containers as the host uid would be the tidier fix, but it needs
# the cache volumes relocated off /root first. Until that happens, this restores
# ownership at the end of each containerised build, which is self-healing and
# needs no uid plumbing on the host side.
#
# Outside a container this is a no-op: it exits immediately unless it is running
# as root, so the native build scripts can call it unconditionally.
set -uo pipefail
# Not root (a normal developer build) — nothing to fix, and nothing we may fix.
[ "$(id -u)" -eq 0 ] || exit 0
cd "$(dirname "$0")/.."
REPO_ROOT="$(pwd)"
# Whoever owns the checkout is who the artifacts should belong to. Reading it
# from the tree means this works for any uid/gid without being told, including
# CI runners whose uid we do not control.
OWNER="$(stat -c '%u:%g' "$REPO_ROOT")"
# uid 0 owning the tree means it is not a bind mount from a normal host account
# (a root-owned checkout, or a CI image that clones as root). Nothing to give back.
if [ "${OWNER%%:*}" = "0" ]; then
exit 0
fi
echo ""
echo "🔑 Restoring ownership of build artifacts to ${OWNER}"
for target in src-tauri/target src-tauri/gen dist build node_modules .svelte-kit; do
[ -e "$REPO_ROOT/$target" ] || continue
chown -R "$OWNER" "$REPO_ROOT/$target" 2>/dev/null || {
echo "⚠️ Could not fully chown $target — you may need:"
echo " sudo chown -R $OWNER $REPO_ROOT/$target"
}
done
echo "✅ Ownership restored."
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#!/bin/bash
# Stamp the release version into every file that carries it.
#
# The git tag is the single source of truth for a release version. The versions
# committed in package.json / tauri.conf.json / Cargo.toml are a placeholder for
# dev builds; a tagged build overwrites all of them from the tag so they cannot
# disagree with each other or with the tag.
#
# Usage:
# ./scripts/set-version.sh 0.5.0 # explicit
# JELLYTAU_VERSION=0.5.0 ./scripts/set-version.sh
# ./scripts/set-version.sh # derive from git describe (dev builds)
#
# Accepts the version with or without a leading "v".
#
# Why a script and not four sed lines in CI: the version lived in four files and
# CI only ever rewrote one of them (tauri.conf.json), so a tagged release shipped
# a matching installer name and mismatched package metadata. Keeping the write in
# one place is what makes "the tag is authoritative" actually true.
set -euo pipefail
cd "$(dirname "$0")/.."
VERSION="${1:-${JELLYTAU_VERSION:-}}"
# CI passes "${GITHUB_REF#refs/tags/}" unconditionally, which on an untagged
# build is still a full ref ("refs/heads/master"). Treat anything that is not a
# bare version as "no version given" and fall through to git describe, so a
# branch build gets a sane dev version instead of failing the job.
case "$VERSION" in
refs/*) VERSION="" ;;
esac
if [ -z "$VERSION" ]; then
# No explicit version: derive from the most recent tag. Dev builds land on
# something like 0.5.0 (exact tag) or 0.5.0-3-gabc1234 (ahead of the tag).
VERSION="$(git describe --tags --always --match 'v*' 2>/dev/null || echo "0.0.0")"
fi
# Tags are written v0.5.0; the files carry a bare semver.
VERSION="${VERSION#v}"
# Validate before writing anything — a malformed version silently propagated
# into four files is far worse than a failed script.
if ! echo "$VERSION" | grep -qE '^[0-9]+\.[0-9]+\.[0-9]+([-+][0-9A-Za-z.-]+)?$'; then
echo "❌ Not a valid semver: '$VERSION'" >&2
echo " Expected MAJOR.MINOR.PATCH with an optional -prerelease/+build suffix." >&2
exit 1
fi
echo "📌 Setting version to $VERSION"
# --- The three committed manifests -----------------------------------------
# Anchored to the first "version" key so a dependency's version is never hit.
# package.json — the top-level "version", which sits in the first few lines.
perl -0pi -e 's/("version"\s*:\s*)"[^"]*"/$1"'"$VERSION"'"/' package.json
# tauri.conf.json — likewise; this is the one the bundler reads for installer
# names, and the one CI used to patch alone.
perl -0pi -e 's/("version"\s*:\s*)"[^"]*"/$1"'"$VERSION"'"/' src-tauri/tauri.conf.json
# Cargo.toml — only the [package] version, never a dependency's. Restricted to
# the first occurrence of a line-anchored `version = "..."`.
perl -0pi -e 's/^(version\s*=\s*)"[^"]*"/$1"'"$VERSION"'"/m' src-tauri/Cargo.toml
# Cargo.lock — the jellytau entry. Left alone if the lock has not been generated
# yet; the next cargo invocation writes it. Cargo would otherwise rewrite the
# lock mid-build and dirty the tree.
if [ -f src-tauri/Cargo.lock ]; then
perl -0pi -e 's/(name = "jellytau"\nversion = )"[^"]*"/$1"'"$VERSION"'"/' src-tauri/Cargo.lock
fi
# PKGBUILD — the Arch package version. Easy to miss because Arch packaging is a
# separate path from the tauri bundler, and missing it is exactly the failure
# this script exists to prevent: pkgver sat at 0.0.18 while the rest of the tree
# had moved on, so `makepkg` produced a package whose version bore no relation
# to the source it was built from. `pkgrel` resets to 1 because a new upstream
# version starts its packaging revisions over.
if [ -f packaging/arch/PKGBUILD ]; then
# Arch pkgver may not contain a hyphen (it separates pkgver from pkgrel), so a
# dev version like 0.9.0-3-gabc1234 becomes 0.9.0.r3.gabc1234, per the VCS
# package guidelines.
ARCH_VERSION="$(echo "$VERSION" | sed 's/-\([0-9]*\)-g/.r\1.g/; s/-/_/g')"
perl -0pi -e 's/^pkgver=.*$/pkgver='"$ARCH_VERSION"'/m' packaging/arch/PKGBUILD
perl -0pi -e 's/^pkgrel=.*$/pkgrel=1/m' packaging/arch/PKGBUILD
fi
# --- Android versionCode ----------------------------------------------------
# Only when the generated Android project exists (i.e. after `tauri android
# init`); on Linux/Windows jobs there is nothing to stamp.
#
# `tauri android init` derives a versionCode from the semver (0.0.15 -> 15).
# That is both tiny and NOT monotonic across our history: earlier local/dev
# builds shipped versionCode 1000 (from a 0.1.0 config), so a plain 15 is a
# *downgrade* and Android refuses the update.
#
# The floor has to clear the highest code actually in the field, which is not the
# same as the highest this formula has produced. v0.5.2 shipped versionCode
# **5002** under an earlier `minor*1000` scheme; the `minor*100` formula that
# replaced it yields only 1502 for that same version, and 1503 for 0.5.3 — so
# every 0.5.x release built from it was an un-installable downgrade for anyone
# already on v0.5.2, which is exactly the failure this block exists to prevent.
# The multipliers are widened and the floor raised past 5002 accordingly.
#
# code = 10000 + major*1000000 + minor*1000 + patch
# e.g. 0.0.14 -> 10014, 0.1.0 -> 11000, 0.5.3 -> 15003, 1.0.0 -> 1010000.
PROPS="src-tauri/gen/android/app/tauri.properties"
if [ -f "$PROPS" ]; then
# Strip any -rc1/+build suffix first: it is not numeric, and feeding it to
# $(( )) would abort the script under `set -e`.
CORE="${VERSION%%-*}"
CORE="${CORE%%+*}"
MAJ=$(echo "$CORE" | cut -d. -f1)
MIN=$(echo "$CORE" | cut -d. -f2)
PAT=$(echo "$CORE" | cut -d. -f3)
: "${MAJ:=0}" "${MIN:=0}" "${PAT:=0}"
CODE=$(( 10000 + MAJ*1000000 + MIN*1000 + PAT ))
echo " versionCode=$CODE (from $CORE)"
if grep -q '^tauri.android.versionCode=' "$PROPS"; then
sed -i "s/^tauri.android.versionCode=.*/tauri.android.versionCode=$CODE/" "$PROPS"
else
echo "tauri.android.versionCode=$CODE" >> "$PROPS"
fi
fi
# --- Report -----------------------------------------------------------------
echo "✅ Version stamped:"
grep -m1 '"version"' package.json | sed 's/^/ package.json: /'
grep -m1 '"version"' src-tauri/tauri.conf.json | sed 's/^/ tauri.conf.json: /'
grep -m1 '^version' src-tauri/Cargo.toml | sed 's/^/ Cargo.toml: /'
[ -f "$PROPS" ] && grep '^tauri.android.versionCode=' "$PROPS" | sed 's/^/ tauri.properties: /'
exit 0
-228
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@@ -1,228 +0,0 @@
/**
* Guards for scripts/set-version.sh the release version stamper.
*
* TRACES: DR-153 | UT-150
*
* These run the real script against a throwaway copy of the manifests, because
* the failure modes are all in the shell, not in any TS logic: a regex that also
* matches a dependency's version, arithmetic that aborts on a `-rc1` suffix, or
* a CI ref reaching the validator verbatim.
*
* The versionCode formula matters most. Android refuses an update whose code is
* lower than the installed one, and builds already in the field shipped code
* 1000 so any formula that can emit a smaller number for a *newer* release
* bricks updates for those users, silently and irreversibly.
*/
import { describe, expect, it, beforeEach, afterEach } from "vitest";
import { execFileSync } from "child_process";
import * as fs from "fs";
import * as path from "path";
import * as os from "os";
const repoRoot = path.resolve(path.dirname(new URL(import.meta.url).pathname), "..");
const script = path.join(repoRoot, "scripts", "set-version.sh");
let tmp: string;
/** A minimal repo skeleton: just the files the script rewrites. */
function seed(dir: string) {
fs.mkdirSync(path.join(dir, "src-tauri", "gen", "android", "app"), { recursive: true });
fs.mkdirSync(path.join(dir, "scripts"), { recursive: true });
fs.copyFileSync(script, path.join(dir, "scripts", "set-version.sh"));
fs.chmodSync(path.join(dir, "scripts", "set-version.sh"), 0o755);
fs.writeFileSync(
path.join(dir, "package.json"),
JSON.stringify({ name: "jellytau", version: "0.0.1", dependencies: { hls: "1.2.3" } }, null, 2),
);
fs.writeFileSync(
path.join(dir, "src-tauri", "tauri.conf.json"),
JSON.stringify({ productName: "jellytau", version: "0.0.1" }, null, 2),
);
// A dependency carrying its own `version =` is the trap: a greedy regex
// rewrites it too and the build then resolves the wrong crate.
fs.writeFileSync(
path.join(dir, "src-tauri", "Cargo.toml"),
[
"[package]",
'name = "jellytau"',
'version = "0.0.1"',
"",
"[dependencies]",
'serde = { version = "1.0.100" }',
"",
].join("\n"),
);
fs.writeFileSync(
path.join(dir, "src-tauri", "Cargo.lock"),
[
"[[package]]",
'name = "serde"',
'version = "1.0.100"',
"",
"[[package]]",
'name = "jellytau"',
'version = "0.0.1"',
"",
].join("\n"),
);
fs.writeFileSync(
path.join(dir, "src-tauri", "gen", "android", "app", "tauri.properties"),
"tauri.android.versionCode=1\n",
);
fs.mkdirSync(path.join(dir, "packaging", "arch"), { recursive: true });
fs.writeFileSync(
path.join(dir, "packaging", "arch", "PKGBUILD"),
["pkgname=jellytau", "pkgver=0.0.1", "pkgrel=3", 'pkgdesc="x"', ""].join("\n"),
);
}
function run(version: string, dir = tmp) {
return execFileSync("bash", [path.join(dir, "scripts", "set-version.sh"), version], {
cwd: dir,
encoding: "utf-8",
});
}
function read(rel: string): string {
return fs.readFileSync(path.join(tmp, rel), "utf-8");
}
function versionCode(): number {
const m = read("src-tauri/gen/android/app/tauri.properties").match(
/^tauri\.android\.versionCode=(\d+)$/m,
);
return m ? Number(m[1]) : NaN;
}
beforeEach(() => {
tmp = fs.mkdtempSync(path.join(os.tmpdir(), "setversion-"));
seed(tmp);
});
afterEach(() => {
fs.rmSync(tmp, { recursive: true, force: true });
});
describe("set-version.sh", () => {
it("stamps the version into all four manifests", () => {
run("0.5.0");
expect(JSON.parse(read("package.json")).version).toBe("0.5.0");
expect(JSON.parse(read("src-tauri/tauri.conf.json")).version).toBe("0.5.0");
expect(read("src-tauri/Cargo.toml")).toContain('version = "0.5.0"');
expect(read("src-tauri/Cargo.lock")).toMatch(/name = "jellytau"\nversion = "0\.5\.0"/);
});
it("accepts a leading v, as git tags are written", () => {
run("v0.5.0");
expect(JSON.parse(read("package.json")).version).toBe("0.5.0");
});
// The regression that motivates anchoring the patterns.
it("does not rewrite dependency versions", () => {
run("0.5.0");
expect(read("src-tauri/Cargo.toml")).toContain('serde = { version = "1.0.100" }');
expect(read("src-tauri/Cargo.lock")).toMatch(/name = "serde"\nversion = "1\.0\.100"/);
expect(JSON.parse(read("package.json")).dependencies.hls).toBe("1.2.3");
});
describe("Android versionCode", () => {
// A newer release must never produce a smaller number than an older one, or
// Android refuses the update. The floor tracks the highest code actually in
// the field, which is NOT the same as the highest this formula has produced:
// v0.5.2 shipped versionCode 5002 from an earlier `minor*1000` scheme, while
// the `minor*100` formula that replaced it yields only 1502 for that same
// version — so every 0.5.x release built from it was an un-installable
// downgrade for anyone already on v0.5.2. The floor is raised to clear it.
it("clears the highest code shipped by earlier builds", () => {
run("0.0.1");
// v0.5.2 shipped 5002; anything at or below that cannot install over it.
expect(versionCode()).toBeGreaterThan(5002);
});
it("keeps 0.5.3 installable over the 5002 that shipped as v0.5.2", () => {
run("0.5.3");
expect(versionCode()).toBeGreaterThan(5002);
});
it("uses 10000 + major*1000000 + minor*1000 + patch", () => {
const cases: Array<[string, number]> = [
["0.0.14", 10014],
["0.0.15", 10015],
["0.1.0", 11000],
["0.4.8", 14008],
["0.5.0", 15000],
["0.5.3", 15003],
["1.0.0", 1010000],
];
for (const [version, code] of cases) {
seed(tmp);
run(version);
expect(versionCode(), `versionCode for ${version}`).toBe(code);
}
});
it("increases monotonically across an upgrade sequence", () => {
const ordered = ["0.0.14", "0.0.15", "0.1.0", "0.4.8", "0.5.0", "1.0.0"];
const codes = ordered.map((v) => {
seed(tmp);
run(v);
return versionCode();
});
const sorted = [...codes].sort((a, b) => a - b);
expect(codes).toEqual(sorted);
expect(new Set(codes).size).toBe(codes.length);
});
// `$(( 0-rc1 ))` aborts the script under `set -e`, so the suffix has to be
// stripped before the arithmetic.
it("derives the code from the numeric core of a prerelease", () => {
run("0.6.0-rc1");
expect(versionCode()).toBe(16000);
expect(JSON.parse(read("package.json")).version).toBe("0.6.0-rc1");
});
});
describe("input validation", () => {
it("rejects a malformed version without writing anything", () => {
expect(() => run("not-a-version")).toThrow();
// The manifests must be untouched, not half-written.
expect(JSON.parse(read("package.json")).version).toBe("0.0.1");
expect(JSON.parse(read("src-tauri/tauri.conf.json")).version).toBe("0.0.1");
});
// CI passes "${GITHUB_REF#refs/tags/}" unconditionally; on a branch build
// that is still a full ref, and must not fail the job.
it("falls back to a dev version when handed a non-tag ref", () => {
const out = run("refs/heads/master");
expect(out).not.toMatch(/refs\/heads/);
expect(JSON.parse(read("package.json")).version).not.toBe("0.0.1");
});
});
// The Arch package is built by makepkg, not the tauri bundler, so its version
// lives in a file the rest of the release path never touches. It sat at
// 0.0.18 while the tree was on 0.8.x — makepkg happily produced a package
// whose version bore no relation to the source it was built from, which is
// the exact failure this script was written to prevent.
describe("PKGBUILD", () => {
it("stamps pkgver and resets pkgrel", () => {
run("0.9.0");
const pkgbuild = read("packaging/arch/PKGBUILD");
expect(pkgbuild).toMatch(/^pkgver=0\.9\.0$/m);
// A new upstream version starts its packaging revisions over.
expect(pkgbuild).toMatch(/^pkgrel=1$/m);
});
it("converts a dev version into a pkgver Arch accepts", () => {
// pkgver may not contain a hyphen — it is the pkgver/pkgrel separator.
run("0.9.0-3-gabc1234");
const pkgbuild = read("packaging/arch/PKGBUILD");
const match = pkgbuild.match(/^pkgver=(.*)$/m);
expect(match).not.toBeNull();
expect(match![1]).not.toContain("-");
expect(match![1]).toBe("0.9.0.r3.gabc1234");
});
});
});

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