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5 Commits
Author SHA1 Message Date
bvandeusenandClaude Opus 5.5 4ecff52f19 feat: duplicates resolve themselves where Lidarr says it is safe (M498)
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The duplicate sweep proposed 4,197 groups and every one waited for the
operator. Most are safe to settle, and Lidarr defines what safe means: it
maps one file to each track of the release it monitors and downloads any
mapped file that disappears. Deleting a mapped copy opens exactly the hole
the operator saw Lidarr fill.

Classify (#5435)
- Migration 0075: duplicate_groups.class (same_release, cross_release,
  mismatch, review), resolve_note, resolved_automatically;
  duplicate_group_members.lidarr_state (tracked, unmapped);
  fingerprint_settings.auto_resolve; notification kind
  duplicates_resolved with both kind CHECKs swapped (rule 36).
- library.ClassifyDuplicateGroup, with MatchTitleKey dropping featuring
  credits, remaster notes and video-rip markers, and keeping live, demo,
  remix and instrumental. The rip markers move from api to library.

Choose the copy to keep (#5436)
- ProposeSurvivor ranks the copy Lidarr maps first, then tag fit (a
  clash-free track number, no rip marker in the name, an MBID), then the
  quality rules. File size picked the wrong Humanz copy in 6 of 21 groups.

Act (#5437)
- An hourly resolver pass reads Lidarr's unmapped files, matched by the
  last three path components, and records each copy's state.
- Same album, with at most one copy mapped: merged into the mapped copy.
  The merge is guarded, so a mapped copy can never be removed
  (MergeDuplicateGroupGuarded, ErrCopyTrackedByLidarr).
- Same album, every copy mapped: the monitored release lists the song
  twice (Humanz's 14x12" box set). The pass moves Lidarr to the release
  that lists each song once and best covers what is on disk. It never
  picks one covering less, and is capped at 10 albums per pass.
  - Fixed point (lesson #4183): the chosen release no longer repeats.
  - The album is left alone for 24h while Lidarr rescans, so "every copy
    unmapped" mid-rescan is never read as licence to merge.
- Both actions are audited with no actor and summarised to admins. The
  operator can switch them off in the Fingerprinting card (rule 25).
- Manual merges use the same guard: 409 copy_tracked_by_lidarr, or 503
  lidarr_unavailable when Lidarr cannot say.

Web
- Duplicates gets tabs: Needs review, Across releases, Resolved
  automatically. Each loads as you scroll (rule 172), replacing the
  pager.
- Each copy says whether Lidarr uses it.
- The resolver's note shows on each group.
- The merge confirm blocks, before sending, a merge that would remove
  the copy Lidarr uses.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-08 21:49:37 -04:00
bvandeusenandClaude Opus 5.5 1e9408c835 feat(notifications): library health reaches admins, coalesced (#5341)
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release / Verify release artifacts (tag releases only) (push) Skipped
- A failed scan run sends scan_failed. Each failure adds to the count and
  the notice shows the latest error. A scan cut short by shutdown says
  nothing.
- Marking tracks missing sends tracks_missing with a running count.
- A duplicate sweep that proposes a group it had not proposed before
  sends duplicates_found, counting everything awaiting review. A sweep
  that only re-finds known groups stays quiet, so a read notice isn't
  repeated every sweep (CountDuplicateGroupsDetectedSince).
- A playback-error report sends playback_errors, counting the unresolved
  errors (CountUnresolvedPlaybackErrors).

The library package gets its notifier as a package-level SetNotifier
beside SetEventBus, for the same reason the bus is package-level.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-08 07:20:33 -04:00
bvandeusenandClaude Opus 5 077ae61235 feat(admin): fingerprinting settings — on/off, length, match threshold, concurrency, sweep interval (M400 #3913)
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test-go / integration (push) Failing after 2m42s
release / Build + push container image (push) Canceled after 0s
release / Verify release artifacts (tag releases only) (push) Canceled after 0s
release / Build signed APK (releases and dev) (push) Canceled after 4m8s
Rule 25: the fingerprinting knobs move out of source into a DB-backed
singleton (migration 0061), edited from a card on the Duplicates page and
shared live with the scanner, the backfill and the duplicate sweep through
one service instance, so a save needs no restart.

The length is the knob that can silently break the library: prints taken
at two lengths never match. Each track_fingerprints row now records the
length it was taken at, and every reader filters on the current one — the
backfill treats another length as stale, the gauge counts it pending, the
sweep never streams it. Equivalent to a version bump, except that setting
the length back makes rows not yet redone current again. The card warns
before a length change re-fingerprints the library.

Off stops every decode: the scan takes only the stream hash (a demux, and
what recognises a moved file) and stores nothing, dropping a changed file's
stale row; the backfill idles. A save also makes a sweep due, since a new
threshold or length changes what the same prints group into, and the sweep
interval gains slack so an hourly interval on an hourly tick doesn't skip
every other tick.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SQ31KQpYbStyK5y58UmPLH
2026-09-11 17:53:55 -04:00
bvandeusenandClaude Opus 5 ff493a8c7d feat(admin): the duplicates report — review proposed duplicate groups (M400 #3912)
test-web / test (push) Successful in 52s
test-go / test (push) Successful in 1m9s
test-go / integration (push) Successful in 3m31s
release / Build signed APK (releases and dev) (push) Successful in 4m32s
release / Build + push container image (push) Successful in 24s
release / Verify release artifacts (tag releases only) (push) Skipped
A new admin tab, Duplicates, beside Missing files: the proposals from
the duplicate sweep, with a Sweep now trigger and a Not duplicates
dismissal. Nothing on it merges or deletes; the merge is #3911.

Each group shows:
- whether it is identical audio or the same recording, with a match
  percentage from the weakest link between members
- every copy's format, size, duration, path, and the likes and plays
  it carries (every user's; this is admin-only, and it is what decides
  which copy to keep)
- the copy proposed to keep, and the rule that chose it

The survivor rule is library.ProposeSurvivor, a pure function the
merge will reuse: lossless over lossy, then the larger file, then the
copy in the library longest, then lowest id. Bitrate is not in it
because the scanner never fills tracks.bitrate, and for one recording
at one duration a larger file is the higher bitrate. m4a is not counted
as lossless: it may be AAC. The reason names the rule that separated
first place from second, not every rule the winner passed.

An empty report has three causes, and the page says which: still
fingerprinting, the sweep has never run, or it ran and found nothing.
The sweep's state and the backfill's progress come back with the groups
for that reason. Groups left with fewer than two members since the
sweep are not shown.

GET /api/admin/library/duplicates, POST .../sweep (202, or 409
sweep_in_progress), POST .../{id}/dismiss (404
duplicate_group_not_pending when already resolved).

Migration 0060 indexes play_events by track_id. Its only indexes led
with user_id, so each copy's play count, and the merge's repointing of
play history, would scan the whole table.

Web only, like Missing files: Android has no library-health admin
screens.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SQ31KQpYbStyK5y58UmPLH
2026-09-11 17:11:11 -04:00
bvandeusenandClaude Opus 5 6379b6c31d feat(library): the duplicate sweep — propose duplicate groups from fingerprints (M400 #3910)
test-go / test (push) Successful in 1m0s
test-go / integration (push) Successful in 3m17s
release / Build signed APK (releases and dev) (push) Successful in 4m51s
release / Build + push container image (push) Successful in 14s
release / Verify release artifacts (tag releases only) (push) Skipped
Reads fingerprints, runs them through the matcher, and records
proposals in duplicate_groups (migration 0059). Nothing is merged or
deleted: a group is a proposal for the admin report (#3912).

Streaming. The whole library's fingerprints are hundreds of megabytes,
but tracks are only compared within 3s of each other in duration. So
candidates stream in (duration_ms, id) order, keyset-paged on a new
tracks(duration_ms, id) index. The grouper holds only the tracks within
3s of the oldest one not yet settled. A seed is settled once a track
arrives beyond its window, which gives the same result as grouping the
whole sorted list. groupDuplicates is rebuilt on the same streamGrouper,
so there is one grouping rule and the #3909 tests still cover it. Each
fingerprint's alignment index and variety check are computed once
instead of for every pair.

Exact duplicates are grouped library-wide in SQL. The first member the
stream meets stands in for the whole group in the acoustic pass. An
exact group caught in an oversize acoustic cluster is still proposed:
the acoustic evidence is discarded, identical bytes are not.

Re-sweeping:
- a group is identified by its sorted member ids, so finding it again
  refreshes the row in place
- a proposal whose members all sat in one dismissed group is not
  proposed again (a subset repeats the verdict; a superset is new
  evidence)
- a pending proposal no sweep has found again is retired, but only
  after a complete sweep, and only if an earlier sweep last confirmed
  it, so two overlapping sweeps cannot delete each other's findings
- dismissals are kept

DuplicateSweepWorker checks hourly and sweeps only when a fingerprint
was written after the last sweep started. TryStartDuplicateSweep guards
against two sweeps at once and reaps one stuck in flight for 2h. The
sweep row is closed on a detached context with a deadline, so a sweep
cancelled at shutdown still records that it ended.

The integration test pages one row at a time and checks:
- an acoustic pair and an exact pair are found
- a track with no fingerprint, a missing track and a near-duration
  unrelated song are left out
- a dismissed group is suppressed while the pending one refreshes
  without duplicating
- a proposal that stops holding is retired and the dismissal survives

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SQ31KQpYbStyK5y58UmPLH
2026-09-11 17:00:07 -04:00