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* perf(scan): skip full library re-stat when the tree is unchanged
Startup scans globbed the whole DLC tree twice (*.feedpak, *.wem) and
stat()'d every file to detect changes — ~100k filesystem round trips on
a 50k-song library, and painful on a slow NTFS-3G FUSE mount (the "big
drive churns on every launch" report).
Adds/removes/renames of songs all bump the mtime of the containing
directory (verified on the target mount), so after a full pass we persist
{reldir: mtime_ns} for every library dir (scan_dir_signature.json, keyed
by DLC path). The next scan re-stats only those dirs — a handful vs 100k
ops — and skips the entire listing/stat pass when none changed.
Blind spot: a pack rewritten in place under the same name bumps the file
mtime but not its dir's. Rare for a song library, and the manual Refresh
(/api/rescan + /api/rescan/full) now passes force=True to always do the
full pass. force threads through kick_scan -> _scan_runner and coalesces
like the rescan-pending flag.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* fix(scan): track directory-form songs' own dir in the signature
CodeRabbit: _library_dirs recorded only each song's parent. For a
directory-form song (loose-song folder or directory sloppak bundle),
adding/removing/replacing a file INSIDE the folder bumps that folder's
own mtime, not its parent's — so the fast path would skip a rescan it
should run. Record the song's own dir when f.is_dir(). File-form
sloppaks (a single .feedpak zip) aren't dirs, so the flat file library
is unaffected.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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| .. | ||
| routers | ||
| acoustid_match.py | ||
| appconfig.py | ||
| appstate.py | ||
| audio_effects_db.py | ||
| audio.py | ||
| builtin_content.py | ||
| demo_mode.py | ||
| diagnostics_bundle.py | ||
| diagnostics_hardware.py | ||
| diagnostics_redact.py | ||
| dlc_paths.py | ||
| drums.py | ||
| enrichment.py | ||
| env_compat.py | ||
| gp2midi.py | ||
| gp2notation.py | ||
| gp2rs_gpx.py | ||
| gp2rs.py | ||
| gp8_audio_sync.py | ||
| gp_autosync.py | ||
| jsonc.py | ||
| library_registry.py | ||
| logging_setup.py | ||
| loosefolder.py | ||
| lyrics_transcribe.py | ||
| mb_match.py | ||
| metadata_db.py | ||
| midi_import.py | ||
| notation_lift.py | ||
| notation.py | ||
| progression.py | ||
| reqfields.py | ||
| safepath.py | ||
| scan_worker.py | ||
| scan.py | ||
| sloppak.py | ||
| song_score.py | ||
| song.py | ||
| songmeta.py | ||
| tailwind_rebuild.py | ||
| tones.py | ||
| tunings.py | ||
| vocal_pitch.py | ||
| wem_decode.py | ||
| xp.py | ||