Root cause of bad album/title tags: yt-dlp's --parse-metadata reads a
single-word FROM (matching field_to_template's ^[a-zA-Z_]+$) as a *field
name*, so literal one-word titles/albums like "Cochise" became "NA". Inject
literals via seed-then-replace into meta_<tag> instead (--parse-metadata to
create the field, --replace-in-metadata with literal args to set it), which
is immune to template parsing and also creates tags the source lacks.
- yt_download: literal-safe meta_artist/title/album; hit album no longer
clobbered by the Unknown-Album default; artist tag now created when missing.
- lidarr_search: connection/timeout errors surface via err() ("Lidarr
unreachable … falling back to YouTube") instead of silent dbg(), so the
YouTube fallback isn't mistaken for "no Lidarr match".
- Dockerfile: install deno (arch-aware) — the JS runtime yt-dlp needs for
YouTube; without it: "No supported JavaScript runtime" / HTTP 403.
- repair: treat NA/Unknown placeholders as bogus and overwrite title/artist
from source (was fill-missing-only); normalise literal "NA" album to
"Unknown Album"; rename bogus "NA [<id>]" filenames to the recovered title.
- README updated; .gitignore excludes server/log.txt.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Downloads with no album (regular YouTube videos, fan edits, etc) left a blank
album, which trips up players like Plexamp. yt_download now appends
--parse-metadata "%(album|Unknown Album)s:%(meta_album)s" so the native/resolved
album is kept when present, else 'Unknown Album' is embedded. Applies to all
download paths (search, playlist, single URL).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Generalize URL handling beyond YouTube to any yt-dlp-supported site
(SoundCloud, Bandcamp, etc), single tracks and playlists/sets/albums.
- probe_url(): one yt-dlp --flat-playlist probe classifies playlist vs track
and returns per-entry Hits; YouTube playlists still use ytmusicapi.
- _track_url(): YouTube tracks keep the music.youtube album-art URL; other
platforms download via their native entry URL (no more videoId reconstruction).
- Per-source folders: <root>/<artist>/<extractor>/ (soundcloud/bandcamp/youtube)
instead of hardcoded youtube; download_single derives source from metadata.
- download_hits() downloads pre-probed Hits; API probes once and passes hits
into the job closure. Replaces YouTube-only is_playlist_url/expand_playlist.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
