dtourolle
2d67b0e4f5
Switching bitrate mid-film stalled playback. The server served the new playlist and then rejected its segments: 400 on hls1/main/0.ts, six times over 25 seconds, never recovering, while the UI logged "Streaming quality changed" as if nothing were wrong. Jellyfin keys a transcode job by device and play session. Every stream URL this app built carried the same hardcoded DeviceId and no PlaySessionId at all, so the second stream for an item was indistinguishable from the first and nothing ever stopped the old ffmpeg. Re-opening a stream is not rare — a quality switch, a transcoded seek and an audio-track switch all do it. Replayed against the server, a second stream opened for a live job's item alternates per attempt between serving bytes and 400ing, which is why it read as flaky rather than broken. begin_video_play_session mints a session id per open and reports the one it supersedes; the URL builder stops that job (DELETE /Videos/ActiveEncodings, un-retried — a slow stop must not delay playback) before returning. Putting it in the builder rather than in each caller covers every re-open path by construction. adopt_video_play_session takes ownership of the job the server starts itself when PlaybackInfo answers with a TranscodingUrl: without it the first switch on a stream has nothing to stop and collides with what is playing. Two client faults made the same incident worse and go with it: - The fatal-HLS-error handler added the transcode seek offset to a position that already included it. Past roughly the halfway mark of a film the doubled value cleared the "near end" threshold, so any transient network error was reported as end-of-stream and autoplay skipped to the next item — precisely when a quality switch had just made the offset large. The decision now lives in hlsRecovery.ts, against the absolute position. - The HTML5 reload primitive resolved on its own canplay timeout, so a reload the server never served reported success. The picker showed a quality that was not playing and the caller had nothing to revert. TRACES: UR-074, UR-004 | DR-177 | UT-173, UT-174, UT-175
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 50%
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).
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 minimum 50% coverage threshold
- 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