Root cause of the flaky pytest segfault (exit 139): the background scan and enrichment daemon threads (_scan_runner/_enrich_runner) use the shared MetadataDB connection, but test fixtures closed that connection in teardown without stopping them. A daemon thread mid-query on a freed SQLite conn is a native use-after-free → SIGSEGV. The app's startup kicks a scan, so almost any app-booting fixture was vulnerable. It only surfaced now because got-feedback/feedBack#728 added a push trigger, so ci/test runs on every push to main.
Fix: server.py retains the scan/enrich thread handles and adds _join_background_db_threads(); every test fixture now joins the workers before conn.close(). Verified: the full suite runs to completion (no segfault) where it previously crashed at ~25%.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* v3 library: first-hour polish — zero-states, match progress, provenance, alias search
Six launch-eve fixes for a brand-new user's first hour with a fresh,
being-matched library. Each is small and reuses shipped idioms.
- Invitational repertoire meter: with no practice data yet, the home meter
no longer reads "0 of N mastered" (debt framing) — it shows an empty bar
with "grows as you master songs". A count of 0 read as failure on day one.
- "Start here" starter shelf: growth_edge_suggestions() distinguishes two
empties — attempts exist but all mastered (honest empty shelf) vs nothing
attempted yet (day one) → new starter_suggestions() returns up to 8
approachable songs (90–480s, shortest first) flagged starter:true, and the
client renders a "Start here" shelf instead of a blank home.
- Library-visible match progress: while the background pass runs, a quiet
"Matching your library — X of Y" line sits by the review chip (5s poll,
single guarded interval, cleared the moment the pass stops — no leak,
no toast, silent completion).
- One-time transparency toast: the first time an install is seen matching a
real library, one fbNotify names what's contacted (MusicBrainz / Cover Art
Archive), that results are stored locally, that files aren't changed
without you, and where the switch is. localStorage-gated, wrapped so a
blocked notifier can't break the chip.
- Empty-library dead-end card: a genuinely empty local library (no songs, no
query/filter) shows "Your library is empty" + drop-files hint + Open
Settings, instead of a bare grid under dead dropdowns.
- Alias-aware search: searching a canonical name ("AC/DC") now also finds
songs whose raw tag is a merged variant ("ACDC"), via the artist_alias
table. Probe-guarded so a no-aliases library keeps the exact original
3-term query; pure predicate, keyset-safe.
- Details-drawer provenance line: matched/manual rows show "Matched:
<artist — title> (source) · Fix match" under the Identity fields — the
wrong-match escape hatch at the point of the data, wired to the same
fix-match flow the card menu uses. New read-only GET
/api/enrichment/song/{filename} backs it.
Tests: tests/test_starter_suggestions.py (starter vs normal-shelf behaviour,
length window, attempts-exist path unchanged) + alias-search cases added to
tests/test_artist_alias.py. 34 targeted pass; node --check clean; no new
Tailwind classes.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Nm7tHs1Yvjjtnnu4nzJgdN
* fix(v3 library): stop match-progress poll when leaving the library screen
The 5s enrichment poll (_pollTimer) was cleared on pass completion and on
fetch error, but not when the user navigated away from the library. Leaving
v3-songs mid-pass left the interval pinging /api/enrichment/status in the
background until the pass ended. Subscribe to the existing feedBack
'screen:changed' event: clear the poll when any non-v3-songs screen shows,
and refresh (re-arming if a pass is still running) on returning to v3-songs.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
* v3 library: artist aliases + Tidy-up merge UI — P4
Fixes the "ACDC vs AC/DC" split without touching a single file or row:
a never-purged artist_alias table (raw_name -> canonical_name) applied
at DISPLAY time. The scanner keeps writing whatever the pack says; one
alias row fixes every matching song.
- query_artists dedupes/groups/orders on the effective artist, with a
zero-cost fast path when no aliases exist; the artist filter expands
a canonical name to its raw variants (index-friendly, keyset-safe);
query_page re-labels row artists through the alias map.
- CRUD + merge API: list aliases, list raw artists (variants + counts
for the picker), set/merge/remove; a self-alias clears (= un-merge).
- "Tidy up artists..." in the filter drawer (local library only): a
searchable raw-variant checklist, merge-into-canonical, and a
current-merges list with per-row un-merge. The artist dropdown + tree
pick up canonical names with no dropdown code changes.
- Sort + A-Z rail stay on the RAW artist (keyset-safe): a cross-letter
alias shows its canonical label but buckets under the raw letter
until effective columns are materialized (the grouping engine's
work_key already resolves aliases when this table exists, so merged
artists group correctly there).
11 tests. tailwind.min.css regenerated (generated file - on a merge
conflict, re-run scripts/build-tailwind.sh).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Nm7tHs1Yvjjtnnu4nzJgdN
* fix(v3): flatten transitive artist-alias chains + cycle guard so sequential merges unify (PR #705 review)
merge_artists looped set_artist_alias which stored one hop, so sequential
merges (ACDC->AC/DC then AC/DC->AC-DC) left a two-hop chain that the
single-hop effective_artist/grouping/filtering split into two groups. Add
_single_hop_canonical + _terminal_canonical (visited-set cycle break),
resolve the canonical to its terminal before storing, forward-flatten
existing rows that pointed at the raw name, and reject cycles (409). Batch
merge now runs under one lock + one commit for atomicity.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
