onSkipToNext/onSkipToPrevious forwarded a bare next/previous to Rust, which always advanced the queue. Correct for music, wrong for a video whose audio is running through a background-audio handoff (UR-040): pressing skip to re-hear a line jumped to the next episode instead of scrubbing. resolve_skip_action in player/seek.rs maps the command to Advance or SeekTo, and is_background_audio_active() is the whole test — the handoff exists only for video, and an episode played through it reports MediaType::Audio, so media type cannot distinguish the case. Forward 30s, back 10s, both clamped to [0, duration] so a skip near either end cannot seek negative or read as EOF and advance. Routed through the same spawn-then-seek_absolute path as the scrubber, because a handoff seek re-opens the stream and must not run under the blocking lock (DR-159). Kotlin keeps sending the opaque command; it only gains FAST_FORWARD/ REWIND in the PlaybackStateCompat so the system stops drawing skip arrows for a control that scrubs. The remote-volume action block is deliberately untouched: the handoff never applies to cast sessions, where skip really does mean advance. Tests written first and watched fail (left: Advance, right: SeekTo). 706 Rust tests pass, clippy 0, coverage 90%.
Development Scripts
Collection of utility scripts for building, testing, and deploying JellyTau.
Testing Scripts
test-all.sh
Run all tests (frontend + Rust backend).
./scripts/test-all.sh
test-frontend.sh
Run frontend tests only.
./scripts/test-frontend.sh # Run all tests
./scripts/test-frontend.sh --watch # Watch mode
./scripts/test-frontend.sh --ui # Open UI
test-rust.sh
Run Rust tests only.
./scripts/test-rust.sh # Run all tests
./scripts/test-rust.sh -- --nocapture # Show println! output
Android Scripts
build-android.sh
Build the Android APK.
./scripts/build-android.sh # Debug build
./scripts/build-android.sh release # Release build
deploy-android.sh
Install APK on connected Android device.
./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.
./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.
./scripts/check-android.sh
logcat.sh
View Android logcat filtered for the app.
./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.
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, andfind-req-implementations.shwere deleted in July 2026. They read an undocumented@req:tag convention parallel toTRACES:, greppedsrc-tauri/unscoped (hanging on ~40 GB oftarget/artifacts), and in one case reported "all requirements implemented" from an empty result set.extract-traces.tsis the single source of truth for requirement coverage. See docs/specs/req-coverage-script-removal.md.
Example TRACES comment in code:
// TRACES: UR-005, UR-026 | DR-029
function handlePlayback() { ... }
See 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 - Full CI/CD documentation
- TRACES Quick Reference - Quick guide for adding TRACES
Utility Scripts
clean.sh
Clean all build artifacts.
./scripts/clean.sh
NPM Script Aliases
You can also run these via npm/bun:
bun run test:all # All tests
bun run test:rust # Rust tests
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