2 Commits

Include renames

Author	SHA1	Message	Date
bvandeusen	7ba673ed83	fix(library): tell clients when a file goes missing or comes back — #2704 ... The wire field shipped in 366692a1 was inert. MarkTracksMissing and ClearTracksMissing are plain UPDATEs, and /api/library/sync is a change-log feed: a row that never produces a change row is never re-sent. Clients would have kept their stale copy until an unrelated edit touched the track or the cursor fell out of the retention window and forced a full resync -- so the flag existed and nothing ever told anyone to read it. Found by checking the consumer set rather than the code: the field was threaded end to end and every test passed, because none of them asked the question "how does this reach a client?". Logged BEFORE the mutation, which is the opposite of the scanner's log-after-success pattern, and deliberately so. The failure modes are not symmetric. Log-then-fail-to-mark makes clients re-read a track that has not changed: one wasted fetch. Mark-then-fail-to-log leaves the mark with no change row -- and because both statements are idempotent (missing_since IS NULL / IS NOT NULL guards), the next scan will not retry the pair, so the client never learns. Permanently. A spurious re-read is much the cheaper mistake. Restoring logs too. A file coming back that nobody is told about stays greyed out on every device until something unrelated touches it, which would be a worse bug than the one being fixed. Op is upsert, not delete: the track still exists and keeps its history. Delete would tell clients to drop the row, which is precisely the design #2704 rejected when it chose to ship state instead of filtering the feed. Adds sync.LogChanges alongside LogChange, backed by an unnest batch insert. Every existing caller mutates one entity, so per-row was right for them; reconcile can mark a quarter of a library in one sweep, where a loop would be thousands of round-trips inside an already-slow scan.	2026-08-17 13:04:14 -04:00
bvandeusen	f6d1cf24f0	feat(library): detect missing files and stop offering them — #2523 ... Nothing in Minstrel ever noticed a deleted file. The walk only visits paths that exist, so a row whose file was gone was never scanned, never errored, never counted — permanently invisible. classifyEvent ignores fsnotify removals by design, and the safety-net scan is the same walk, so it covers additions only. Rows accumulated forever. Found on the operator's library: a completed scan reported skipped=24185 errored=0 while the MBID backfill (which opens files by DB path rather than walking) logged ~40 "no such file or directory" across three reorganised albums. Those rows also kept their pre-#2499 welded genre, which is how this surfaced — the version-stamped tag re-read can only reach files the walk visits. The harm is not cosmetic. tracks is the candidate universe for recommendation.sql / discover.sql / system_mixes.sql and nothing filtered on file existence, so a mix could spend a slot on a track that cannot stream. Marks rather than deletes. A missing file is a claim about the filesystem and the filesystem lies transiently — an unmounted volume, a network blip, a container that started before its media mount attached. Every sweep in internal/gc resolves a truth INSIDE the database and is safe to run blind; this one is not, so no deletion happens here. Three guards refuse to act on ambiguous evidence: every scan root must resolve to a non-empty directory, the walk must have seen at least one file, and one reconcile may newly mark at most 25% of the library. Clearing a mark is never the dangerous direction, so it runs unconditionally — otherwise a library that tripped the cap could never recover once the mount returned. Only a full Scan reconciles. The walk's set of seen paths is the evidence, and ScanFiles has no basis for concluding anything about files it did not look at. Excludes marked tracks from all 13 track-emitting queries (radio x2, system mixes x5, discover x4, most-played x2), the 6 play-history seed picks, and the genre browse axis. Deliberately NOT filtered: the shared ListPlaylistTracks read path, because it also serves user-curated playlists where hiding a track the user added would be wrong — system playlists shed orphans on their next daily rebuild instead. History and the taste profile also keep them: those record the past, and a track you played 200 times still says something about your taste. Reconcile tallies land in scan_runs so a disappearance is visible rather than discovered when a mix comes up short.	2026-08-06 14:34:53 -04:00