Three more code paths were bypassing the _meta_lock guard and firing
raw yt-dlp processes concurrently with active downloads:
- Popular fetch Phase 1 (flat-playlist channel crawl): changed from
ytdlp._run to ytdlp._meta_run so it waits for active downloads
- download_subs_only: changed from _run to _meta_run
- fetch_video_comments: returns empty list immediately if a download
is active (avoids blocking a 90s call indefinitely)
- Diagnostic test endpoint (settings): switched to _meta_run
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- auto-sync daemon: background thread checks every hour and syncs followed
channels for users with sync_interval_hours set (6/12/24h options)
- disk stats: /api/stats now returns total/used/free/download bytes;
Stats page shows a disk usage bar
- subtitles: subtitle_langs setting (e.g. "en,sv") passed through all
download paths; yt-dlp writes .srt files alongside the video
- Settings page: sync interval dropdown + subtitle languages input
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
nodeenv is a Python package that downloads a pre-built Node.js binary —
no apt repos, no compilation, guaranteed to work in python:3.12-slim.
The 'node' binary is linked into /usr/local/bin so yt-dlp can find it.
With Node.js available the web client works fully (37 formats) and can
solve YouTube's n-challenge that every other approach was failing on.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
web_embedded: supports cookies, no Node.js/JS runtime needed, 23 video
formats available. android_vr was skipped by yt-dlp when cookies are
present since that client doesn't support cookie auth.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
android_vr provides pre-signed format URLs that bypass YouTube's
n-challenge and signature JS requirements entirely. Tested: 23 video
formats available without any JavaScript runtime installed.
Reverts Node.js Dockerfile addition (which failed to build anyway).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Debian installs nodejs as /usr/bin/nodejs but yt-dlp looks for 'node'.
The symlink ensures yt-dlp can find the runtime.
Diagnostics now report node path/version and yt-dlp version so we can
verify the environment without shelling into the container.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- _cookie_args() no longer falls through to --cookies-from-browser when
cookies_file is configured but missing. Firefox isn't installed in the
Docker image, so that fallback caused yt-dlp to exit with empty stdout
and every metadata fetch to return "Video not found on YouTube".
- fetch_video_metadata() now retries without auth args if the first call
fails, so a broken cookie config can't block public video fetches.
- Add use_oauth2 setting + full device-auth flow (POST /settings/oauth2-init,
GET /settings/oauth2-status) with OAuth2Section UI in Settings page.
- Add GET /settings/ytdlp-test diagnostics endpoint.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Self-hosted personal YouTube management app.
FastAPI + SQLite backend, React + Vite + Tailwind frontend.
Dockerfiles and compose included for Portainer deployment.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
