The blurred 60fps worker-orb canvas is the main remaining Firefox lag source after the
#935 sweep (multiple Discord lag reports). So for a FIRST-TIME user with no saved
preference, default the orbs OFF on Firefox (smooth first impression where it's needed)
and ON everywhere else (full polish where the browser handles it). An explicit saved
choice ALWAYS wins — this only picks the default when the user hasn't chosen.
Done kettui-style with a SINGLE source of truth, not the dual browser-detection I first
floated (server UA + client _isFirefox would be the same fact in two places that can
drift — exactly the server/client class #943's green-flash fix just cleaned up):
- core/ui_appearance.py (new, pure + importable): is_firefox_user_agent +
resolve_worker_orbs_default(explicit, is_firefox) — explicit wins, unset → !firefox.
- web_server: the SERVER decides (UA via _request_is_firefox, request-context-safe) and
injects initial_worker_orbs_enabled; config default flipped None so "unset" is
distinguishable from an explicit False. The client just consumes the injected value
(init.js unchanged) — no client-side re-derivation of "is Firefox".
- settings.js: the orb checkbox default now reflects the server value when unset, so
saving Settings can't silently flip a first-time Firefox user's orbs back on.
No regression: Chrome users unchanged; users with an explicit setting unchanged (it
wins regardless of browser); /api/settings returns raw config so it can't clobber the
default for an unset value. Verified end-to-end through a real Flask request context
(Firefox→off, Chrome→on, explicit wins both ways, no crash outside a request). 8 pure
seam tests pin the contract; ruff clean.
reopened by diegocade1: pasting a Qobuz track link still showed unrelated results. the earlier
fix (b1f061a) only BUBBLED the linked track to the top — but a pasted link is resolved to an
"artist title" text query and searched, and for an obscure track ("foreign lavennew" by colacola)
that text search returns broad lookalikes ("Foreign Bird", "Foreign Spies", …) and never the
actual track. nothing to bubble → user sees junk.
fix: since the link is already resolved via get_track(id), fetch that exact track AS a downloadable
result and inject it at the top (Qobuz downloads by id, so the result is fully usable). the text
search still runs for alternatives.
- QobuzClient.get_track_result(id): get_track + _qobuz_to_track_result; None on any failure.
- _qobuz_to_track_result gains require_streamable (default True for bulk search). the link fetch
passes False: track/get may OMIT the streamable flag, which would default-False and wrongly drop
the exact track the user explicitly asked for. (this closes the one shape assumption that
couldn't be verified against a live Qobuz API — the track is no longer gated on it.)
- track_link.inject_linked_track_first(tracks, linked_result, id): pure seam — prepend the fetched
result + drop any search duplicate; falls back to the bubble when no result was fetched.
- manual-search endpoint fetches linked_result defensively (getattr 'get_track_result') and calls
the seam. Tidal/HiFi (get_track returns a dict but the converter wants an object — shape
mismatch) have no get_track_result, so they keep the existing bubble path: NO regression.
14 tests: inject puts the fetched track first when search missed it / dedups a search copy / falls
back to bubble / str-safe id / noop; get_track_result convert/none/exception; and the REAL
converter builds a valid downloadable result from a track/get dict that OMITS streamable (search
path still rejects it). 85 track-link/qobuz tests green, ruff clean.
the CI ruff gate flagged 4 S110s in code added this cycle: the /api/debug/memory/objects
endpoint (len() on an exotic object; optional psutil rss) and the GC sweeper (malloc_trim
resolution + the trim call — absent on musl/non-Linux). all are genuinely best-effort, so add
'# noqa: S110' with a one-line reason on each. ruff check . is clean.
since 9a0e3b40 persisted completed downloads in the Downloads view, the Clear Completed button
was hidden for those rows and clear-completed only pruned live session tasks. after a restart
the page filled with persisted completed downloads with no way to clear them.
now Clear Completed clears BOTH:
- live session completed/failed tasks (clear_completed_local, unchanged), AND
- the persisted download-history tail: new clear_completed_download_history() deletes every
library_history event_type='download' row, so the list actually empties and stays empty.
this includes unverified rows (the verification review queue) by design: on a library where
verification never confirmed the imports, ALL completed downloads are 'unverified', so preserving
them made the button a no-op. it only removes HISTORY rows — the actual files and their tracks
entries are untouched, so nothing in the library is lost, only the 'needs verification' flags.
the action confirms first (showConfirmDialog, destructive) and the button now shows whenever any
completed/failed row is present.
3 seam tests (clears all incl unverified; leaves non-download history; empty=0); reconcile +
orphan + JS integrity suites green.
four fixes from the review (and a self-correction):
1) close the connection. reconcile_unverified_history_from_tracks opened a connection with no
finally/close. runs once per boot so GC reclaimed it, but now it's consistent + robust.
2) scope the tracks scan to the review queue. it built lookup dicts from EVERY verified/
human_verified track (~350k on a large library) on every boot while anything is unverified
(the normal state). now it loads the stuck rows first and skips verified tracks whose path
AND basename can't match any queued row, so dicts stay proportional to the queue, not the
library. behaviour identical (all 13 PR reconcile tests still pass).
3) close the title-less basename collision. a title-less history row fell back to filename-only
matching with no ambiguity check, so a generic name like "01 - Intro.flac" could heal a
DIFFERENT song to verified. now a title-less basename heal only fires when that basename is
unique among verified tracks; unique-basename rows still heal (recall preserved).
4) "Clean orphaned" protects force_imported rows (deliberate user decision, keep for human
approval) without weakening the mount-down safety gate. CRUCIAL self-correction: filtering
them out BEFORE the orphan check (my first cut) shrank the checked count below the threshold
and would have let a few unverified orphans be deleted during a mount outage. instead,
find_orphan_history_ids now takes a deletable predicate: protected rows still count toward
checked / all-missing (gate stays strong) but never enter the orphan_ids delete set.
3 new regression tests (title-less collision; deletable protects from delete; protected rows
still count toward the gate). 936 verification/acoustid/history/downloads tests green. builds
on nick2000713's #938.
clicking Download Discography → Add all to wishlist added ~1 track every 15-30s. trace: the
endpoint's per-track library-ownership check (track_already_owned → check_track_exists) ran the
LEGACY path — firing search_tracks for every title-variation × artist-variation, per track. on
a large library and an artist you own NOTHING of, STRATEGY-1 (indexed LIKE) always missed and
fell through to the fuzzy fallback (full-table scan), ~10-15 scans/track = the 15-30s. metadata
fetch was never the bottleneck (deezer returns each album in ~1s).
fix: pre-fetch the artist's owned tracks ONCE (get_candidate_albums_for_artist →
get_candidate_tracks_for_albums) and pass candidate_tracks to check_track_exists's batched
in-memory path — the same path the discography backfill job + completion-stream already use.
pass an EMPTY list (not None) when nothing is owned so the owns-nothing case still takes the
fast path → instant. per-track cost drops from ~20s to ~1ms.
safe: track_already_owned's only real caller is this endpoint; the new param is optional
(None = unchanged legacy behaviour for any other caller). normal ownership still detected (same
artist-variation breadth); the one divergence is a track owned ONLY via a compilation → a
harmless redundant wishlist add, which is the endpoint's explicitly-accepted failure mode and
already how the backfill job behaves. 4 new tests; 1134 discog/metadata/wishlist tests green.
The reconcile heals rows whose file is still in the library; it deliberately
leaves ORPHANS — history rows whose file is gone (deleted / replaced /
re-downloaded elsewhere). Those can never be healed (no file left to confirm)
and linger in the Unverified list forever. This adds an explicit, user-initiated
cleanup for them.
- core/downloads/orphan_history.py: pure, tested rule. A row is an orphan when
its file resolves nowhere; flags `suspicious` when EVERY reviewed file is
unreachable (the mount-down signature) so the caller refuses rather than
mass-delete a healthy log during an outage.
- POST /api/verification/clean-orphans (admin-only): runs it against
_resolve_history_audio_path (raw path -> prefix-swap resolver -> tracks-table
title fallback), refuses on the suspicious signature, and deletes only history
ROWS — never a file (the files are already gone).
- UI: "🧹 Clean orphaned" button in the Unverified bulk-actions row, with a
confirm dialog spelling out that it removes log rows only and refuses if the
library looks offline.
NEVER automatic / never at boot — a filesystem check during a mount outage would
otherwise wipe good history. 5 pure-rule tests + safety-gate coverage.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LWJk7EuM7YktQeNyqQwTZY
the growth-triggered collects were firing but RSS still climbed to 2.2GB before snapping to
1.2GB — because gc.collect() freed the python objects but glibc hoarded the memory rather than
returning it to the OS, so RSS stayed at the high-water mark. add malloc_trim(0) after each
collect to hand freed arenas back to the OS, so incremental collects genuinely lower RSS and
the sawtooth caps near floor+200MB instead of overshooting. best-effort (skipped on musl/non-
linux). also tightened the growth trigger 250->200MB.
the 60s timer overshot: browsing piled plexapi cyclic garbage faster than once-a-minute caught
it, so RSS hit ~2.2GB before a sweep (then dropped to 1.2GB). switch to polling RSS cheaply
(every 8s) and collecting as soon as it grows +250MB since the last sweep — so it fires DURING
a heavy browse and caps the peak near floor+250MB instead of running to 2GB+. keeps a 120s
backstop for slow idle accumulation.
measured the 'resource hungry' / lockup issue: browsing every page grows RSS ~300MB -> 1.8GB
and it stays. it's not a leak — it's deferred cyclic collection. plexapi parses Plex responses
into XML Element trees whose nodes reference each other in cycles; Python's generational GC
leaves them in gen2 and sweeps it rarely, so ~227k Element objects pile up. forcing gc.collect()
reclaimed ~700MB instantly (1.8GB -> 1.1GB live), confirming.
add a daemon that runs a full gc.collect() every 60s so the cyclic garbage is reclaimed on a
cadence instead of climbing into lock-up. full collect is ~tens of ms; once a minute is
negligible. this is the root of the reporter's 2GB + ramonskie's spike too.
tracemalloc's continuous tracing locks up a loaded app, so add a one-shot gc-based memory
breakdown: top object types by total size AND by count, plus the biggest individual containers
(>1MB). a runaway 'count' points at an unbounded cache; a big bytes/str total points at blob
retention. lets us pinpoint the RSS growth (300MB -> 1.8GB after browsing) without tracing.
the Memory Usage stat showed only global system memory (psutil.virtual_memory().percent).
add the process's own resident set size (RSS) — the real 'how much RAM SoulSync uses' number —
formatted MB under 1GB, GB above. headline stays the system %, subtitle now reads 'SoulSync ·
612 MB' instead of the generic 'Current usage'. graceful fallback if psutil errors / older
backend. useful context after the recent RAM-footprint discussions.
save_watchlist_scan_run had a single caller — the manual scan endpoint. the automatic/
scheduled path (process_watchlist_scan_automatically) ran the full scan but never wrote a
history row, so nightly scans never showed up in the History modal — only manual ones.
- new shared helper persist_scan_run(database, state, ...) extracts the run from the
finished watchlist_scan_state and writes one history row
- the automatic path now stamps scan_run_id/scan_track_events and calls it
- the manual path is refactored onto the same helper so the two can't drift apart again
- history is global (no profile filter), so the all-profiles nightly scan records one
aggregate row (profile_id None → 1, never NULL)
tests: 4 new persist_scan_run seam tests (real DB) + 2 new auto-scan integration tests
proving the auto path actually records (completed + cancelled, exactly once). 420
watchlist/automation tests green.
a pasted track link IS resolved + searched, but the 'bubble the exact track to the top'
step read getattr(t,'id') — and TrackResult has no top-level id (the source id lives in
_source_metadata['track_id']). so the bubble was a silent no-op: the linked track sat buried
among fuzzy text-search lookalikes and the user saw unrelated tracks. qobuz made it worse —
_qobuz_to_track_result never stamped _source_metadata at all, so the track had no id to match.
- stamp _source_metadata={'source':'qobuz','track_id':...} on qobuz TrackResults (mirrors tidal)
- extract the bubble into pure, tested helpers (linked_track_id / bubble_linked_track_first)
that read _source_metadata['track_id'] — fixes it for tidal too, str/int-safe, stable no-op
19 track-link tests (+6 new) + 87 qobuz/download tests green.
Opens to the same category-card landing the Discovery Pool uses, with two cards: 'guesses to review' (unverified wing-it) and 'resolved manually' (ones you've Fixed) — click to drill in, Back to return. Previously it jumped straight to a single list.
To populate the resolved list, the /fix endpoint now stamps was_wing_it on the rewritten extra_data (the wing_it_fallback flag is otherwise lost on fix), and get_wing_it_pool gained a resolved flag + the stats return both counts. Fixing/re-matching from either card refreshes in place. Seam test updated for both states.
Wing It auto-matches tracks to the server library on a best-effort guess; those tracks are flagged wing_it_fallback in extra_data and count as 'discovered', so the Discovery Pool hides them — there was no way to see or audit the guesses. New 'Wing It Pool' button (next to Discovery Pool on the Mirrored Playlists tab) opens a modal listing them with a per-playlist filter + search; 'Fix Match' reuses the Discovery Pool's fix flow (/api/discovery-pool/fix), and a manual match drops the track from the pool on refresh.
No new table or provider hooks needed — the wing-it flag is already persisted, so this is a pure query (get_wing_it_pool / get_wing_it_pool_stats, cloning the failed-pool LIKE pattern) + a /api/wing-it-pool endpoint + a cloned modal. Found 81 wing-it tracks on a real library. Seam-tested (include unverified / exclude manual-matched / scope by playlist+profile).
Adds an opt-in `rank_candidates_by_quality` profile flag. When on, the
priority-mode download walk orders candidates by the ranked-target quality
(confidence/speed only break ties) instead of confidence-first. Default off
keeps the byte-for-byte old behaviour, so existing installs are unaffected.
Best-quality search mode is always quality-first regardless of the flag; the
toggle only affects priority mode. Search-time source selection is unchanged —
nothing is skipped, so a track can never go missing, only the order in which
copies are tried changes.
The version-mismatch force-import follows automatically: it accepts the
first-tried (= best-ordered) quarantined candidate, which is the highest-quality
one once the walk is quality-first. No change to its selection logic needed.
- core/quality/selection.py: load_rank_candidates_by_quality() (fail-closed).
- core/downloads/task_worker.py: _best_quality_ordering -> _candidate_ordering;
quality-first when best_quality mode OR the toggle is on.
- database/music_database.py: default profile carries the flag (False).
- web_server.py: flag is preserved globally across preset apply/reset, like
search_mode.
- core/imports/version_mismatch_fallback.py: comment clarified (no behaviour
change).
Tests (TDD): load_rank_candidates_by_quality default/enabled/disabled/error;
_candidate_ordering across all mode+toggle combinations + fail-closed.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Two subsystems post-process the same completed transfer: the browser-poll
status endpoint (web_server) and the background download monitor. Both watch
the same slskd/streaming transfers and each launches the verification
pipeline. When one path quarantines + requeues the next-best candidate
(clearing username/filename, status -> 'searching'), the monitor's
already-submitted run_post_processing_worker then runs, finds no source info,
and falsely marks the task 'failed' ("missing file or source information") —
clobbering the in-flight retry while a parallel attempt imports the song.
Fix: a single atomic claim (downloading/queued -> post_processing under
tasks_lock) so exactly one path processes each download.
- runtime_state: new claim_for_post_processing() helper
- post_processing: race guard — worker bails (no fail/notify) if the task is
no longer 'post_processing' when it runs
- web_server: both poll paths (Soulseek + streaming) claim before launching;
claim is released on thread-launch failure
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
#913 was silently producing 0 recs: similar_artists.source_artist_id is a SOURCE id (Spotify/etc.), but the scan keyed id->name by internal artists.id (resolved nothing), and the consensus ranker was fed the name-collapsed get_top_similar_artists (consensus could never fire). Fixed + elevated:
- id->name keyed by source-id columns; raw per-seed edges (real consensus); similarity_rank threaded into the score; recency-weighted seeds (recent plays boost lifetime favs)
- new 'Based On Your Listening' artist row (/api/discover/listening-recommendations) with 'because you listen to X' explanations
- new 'Your Listening Mix' track row: each rec's top tracks via a guarded, name-resolved Spotify/Deezer fetch (falls back to the discovery pool), stored as full render dicts so the row can't shrink on pool rotation
- pure tested core: similarity_from_rank, build_recency_weighted_seeds, to_mix_track, names_match (+ rank-aware grouping)
Fresh Tape (5-10 tracks): future-dated albums sorted to the top of get_discovery_recent_albums and ate the 50-album budget before the is_future_release skip ran. Add exclude_future_years + fetch a generous budget; downstream caps unchanged. Regression tested.
Also drop the per-track block 'X' from the compact playlist rows (wrong spot). Plan/audit in DISCOVER_BEST_IN_CLASS_PLAN.md.
In the dashboard Recent Syncs detail modal, the '→ Wishlist' status on unmatched
tracks is now a button. Clicking it re-adds that exact track to the wishlist with
the SAME context the sync used (source_type='playlist' + the playlist's name/id +
failure_reason), so it's indistinguishable from the original auto-add.
- reconstruct_sync_track_data() (pure, tested): prefers the full cached track from
tracks_json (by source_track_id, then index) so album art/full data carry over;
falls back to the track_result fields; refuses non-'wishlist' rows and rows with
no id (can't re-wishlist a matched/unidentifiable track).
- POST /api/sync/history/<id>/track/<i>/wishlist resolves the entry server-side and
calls the wishlist service; idempotent (reports added vs already-on-wishlist).
- button shows a busy state then '✓ Re-added' / '✓ On wishlist'.
7 pure tests (full-track preference, id-vs-index match, fallback rebuild, non-
wishlist + out-of-range refusal). JS/PY/ruff clean.
Completes align across all three servers. Jellyfin reorders in place: DELETE the
extra entries (Mirror) then POST /Playlists/{id}/Items/{entryId}/Move/{index} for
each desired track in ascending order — so the playlist's poster/name/Id survive
(no delete-recreate), same as Plex/Navidrome. Mirrors the existing reconcile path's
entry-id handling (PlaylistItemId via /Playlists/{id}/Items).
- jellyfin reorder_playlist() + get_playlist_track_ids(); reuses the shared, tested
plan_align_rewrite planner (no new pure logic).
- /align endpoint + frontend gate now cover navidrome|plex|jellyfin.
UNTESTED LIVE: no Jellyfin instance to verify against (same status as the Navidrome
path). Plex is the only one confirmed working end-to-end so far.
The align buttons were gated to Navidrome, so Plex users (the actual tester) never
saw them. Plex reorders in place via plexapi moveItem/removeItems — preserves the
playlist's poster/summary/ratingKey (no delete-recreate), same spirit as Navidrome's
overwrite.
- plex_client.reorder_playlist(): moves each desired track into sequence, removes
any current item not in the ordered list (Mirror drops extras; Keep includes them).
get_playlist_track_ids() feeds the shared tested plan_align_rewrite.
- /align endpoint dispatches navidrome + plex; reuses the pure planner for both.
- frontend gate opened to navidrome|plex.
- modal redesigned: cover art per row, gradient header, pop/fade animation, hover
rows, real polish (was a plain numbered list).
plexapi moveItem/removeItems signatures verified against the installed version.
Adds the 'Align playlists' action to the out-of-order modal — a dedicated,
order-only write path that does NOT touch the normal sync. Subsonic has no
per-track move, so it overwrites the song list in source order via createPlaylist
+ playlistId (same primitive replace-mode uses; identity/id preserved).
- plan_align_rewrite() (pure, tested): matched server ids in source order; every
one must already be in the playlist (never injects a track); extras either
dropped ('Mirror source') or parked at the end ('Keep extras'); returns None on
stale data so a vanished track can't be written.
- navidrome rewrite_playlist_order() primitive (raw ordered ids).
- /api/server/playlist/<id>/align: validates ids are in the live playlist, then
rewrites. Navidrome-only for now (Plex/Jellyfin reorder = follow-up).
- modal gets two explained options; missing tracks are NOT added (normal sync's
job) and that's stated. Metadata-free by design — it only reshuffles existing
server ids, so there's no sync-parity surface.
Open: confirm createPlaylist+playlistId preserves the playlist comment/image on a
live Navidrome (same risk as replace mode); add a re-apply step if it doesn't.
The editor renders the server column in SOURCE order (reconcile_playlist pairs
each server track to its source row), so a reordered-but-same-membership playlist
read as '5 matched / in sync' when Navidrome's real order actually differed — the
reorder never reaching the server was invisible.
- compute_order_status() (pure, tested): matched tracks' server positions must be
strictly ascending in source order; uses RELATIVE order so missing/extra tracks
never false-flag. reconcile entries now carry server_index (additive).
- endpoint returns order_status + server_order (the server's actual sequence).
- editor shows an amber 'out of order' badge on the server column when membership
matches but sequence differs, opening a read-only modal of the real server order.
One-way: source order stays the source of truth; no server-side editing.
Tests reproduce the reported 'Real Love Baby moved to #2' case + guard against
false-flagging on missing/extra. The actual 'sync order' WRITE is a separate
follow-up (membership/extra semantics + live identity-preservation test pending).
When approving from the quarantine manager (no task_id in request), the
re-import ran through the simple pipeline path with no task to update, so
the downloads list stayed on 'failed' until the batch drained.
Scan download_tasks for the task whose quarantine_entry_id matches the
approved entry. If found, re-run through the verification wrapper with that
task_id so the task is marked completed immediately in the live downloads list.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Race condition: cancelling the retry task didn't stop an already-in-flight
download from completing and creating a new quarantine entry via the pipeline.
- Approve endpoint now sets _quarantine_approved_alternative=True on the
cancelled task alongside status='cancelled'
- Pipeline completion handler checks this flag when _acoustid_quarantined
is set: immediately deletes the freshly-created quarantine entry and
returns, so no stale entry accumulates from the race
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Multiple quarantine entries accumulate per track (one per retry attempt)
and approving one left the others behind and kept the retry running.
- Approve now sends remove_siblings=true — backend sibling deletion was
already implemented but the flag was never passed from the UI
- Toast message now reports how many duplicate candidates were removed
- After approve, the backend cancels any in-flight quarantine-retry task
for the same track (matched by title) so the engine stops fetching new
candidates once the user has already accepted one
- Approve All also sends remove_siblings=true
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- pipeline: use trigger='acoustid_unverified' (not 'acoustid') when
require_verified=ON rejects an unconfirmed track — quarantine badge now
shows "ACOUSTID UNVERIFIED" instead of "ACOUSTID MISMATCH"
- web_server: /api/verification/config now also returns require_verified
- pages-extra: collapse the Unverified sub-view to quarantine-only when
require_verified=true (same path as acoustid_enabled=false); new trigger
entry in _VERIF_QUAR_TRIGGERS for acoustid_unverified
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
YouTube Music 'Liked Music' (and any large playlist) only returned ~104 tracks. Diagnosed it
to a YouTube/yt-dlp regression (upstream #16943): the webpage-based playlist path stops at the
first ~100-item continuation page. Not a SoulSync cap (no limit in the parse path) and not the
user's cookies/IP — reproduced on a fully-served public playlist.
Fix: pass extractor_args youtubetab:skip=webpage so yt-dlp pages via the InnerTube API instead.
Verified live on the reporter's setup: 100 -> 200 entries on a large playlist (the workaround is
itself partial upstream, but a major improvement until yt-dlp PR #16948 lands). Single touch point
— parse_youtube_playlist is the only place that lists a YouTube playlist.
Re-running an export created a new LB playlist every time (LB keys on MBID, not name, and
create always mints a new one). Now remember which LB playlist a mirror was pushed to and
update it in place:
- listenbrainz_client: refactor batched-add into _add_tracks_in_batches; add
get_playlist_track_count, delete_playlist, update_playlist (verify exists -> clear items via
item/delete -> re-add -> edit title; reports gone=True if deleted on LB), and
create_or_update_playlist (update when we have a prior MBID, else create; falls back to
create if the remembered one was deleted). Stable URL/MBID across re-syncs.
- playlist_export_targets table + get/set_playlist_export_target: remember (mirror, target) -> LB MBID.
- export job consults/stores the target so push updates in place.
+6 mocked tests (clear+re-add same mbid, gone-fallback, create-or-update branches, delete). API
endpoints (item/delete, playlist/edit, playlist/delete, GET count) confirmed against LB docs;
live round-trip pending explicit auth.
Phase 5. Three additive routes + an in-memory job registry (new globals, no existing code
touched):
- POST /api/playlists/<id>/export/listenbrainz {mode: download|push} — spawns a background
thread that loads the mirrored playlist's tracks, resolves each to a recording MBID via
the waterfall, builds the JSPF, and (push) creates the playlist on ListenBrainz. Returns job_id.
- GET /api/playlists/export/status/<job_id> — live status (phase/done/total/coverage) for the
card to poll; omits the heavy JSPF blob.
- GET /api/playlists/export/download/<job_id> — downloads the built .jspf.
Reuses the tested cores (build_resolve_fn, resolve_playlist_tracks, build_jspf, create_playlist).
Standalone _run_soulsync_deep_scan did a path-only diff (untracked = transfer files
not in the soulsync DB) and shutil.move'd EVERY untracked file to Staging — no guard.
When the DB is empty/out of sync with disk (volume swap, DB reset, external Picard
tag edits) but Transfer holds the real library, that flags the whole library as
untracked and relocates all of it; Phase 5 then deletes the rows, and with Staging
cleanup on the files are gone for good. Reporter lost ~1,500 tracks into Staging.
The stale_guard the orphan detector + media-server deep scan already use (#828, #908)
was never wired into this path. Fix:
- core/library/standalone_scan.py (pure, tested): plan_standalone_deep_scan() diffs
untracked (separator-normalized) and decides whether the move is safe. Blocks when
the untracked share is implausibly large (>20 files AND >50% of Transfer — the
desync signature, via is_implausible_orphan_flood) or when the user marked Transfer
permanent. A normal batch of new arrivals still moves.
- web_server: consult the planner before Phase 4; on block, move NOTHING, leave files
in place, and surface a loud warning + activity item. Guard Phase 5 deletes too
(skip on desync-block or implausible stale share).
- 'Transfer is my permanent library — never move files out' toggle
(import.transfer_is_permanent) in Settings.
- tests/library/test_standalone_scan.py: seam coverage + the #904 regression
(empty DB + 1,500 files -> blocked, nothing moved).
No behavior change for in-sync libraries; the guard only trips on the desync pattern.
Private YT Music playlists (a user's Liked Music, list=LM) need auth, but the
only cookie option was cookiesfrombrowser — a browser on the same machine as
SoulSync, useless on a headless/Docker box (and locked to whatever account that
browser happens to be signed into). Add a 'Paste cookies.txt' mode so users can
supply the exact session they want from any machine.
- core/youtube_cookies.py: pure seam — build_youtube_cookie_opts (cookiefile vs
cookiesfrombrowser precedence, mutually exclusive, fail-safe on a missing file),
looks_like_cookiefile (needs a real cookie row; rejects junk/header-only),
write_pasted_cookiefile (validate + 0600 write; blank/junk never clobbers a saved file).
- _youtube_cookie_opts() delegates to the seam, so every yt-dlp call site gets it.
- /api/settings pops cookies_paste before the generic persist, validates (400 on
junk), writes config/youtube_cookies.txt, stores only the path (blob never hits config.json).
- Settings dropdown gains 'Paste cookies.txt'; selecting it reveals a textarea.
- tests/test_youtube_cookies.py: precedence, validation, fail-safe write (11 tests).
