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fix(core): remove stale partials of the destination before a new write - #916
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A write cut short before its cleanup (the app closed during an export) left its partial beside the destination for good. The next write to the same file now removes the ones a day old.
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Review comments at @src-tauri/crates/core/src/atomic_write.rs:
- Around line 91-112: Dans is_partial_of et sweep_stale_partials, conservez les
noms de fichiers sous forme d’OsStr au lieu d’exiger leur conversion en UTF-8.
Construisez les préfixes et suffixes à partir des composants du chemin, comparez
leurs octets encodés, puis convertissez uniquement le token extrait en UTF-8
avant de vérifier ses deux composantes numériques ASCII.
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docs/features/playlists.mddocs/features/ui.mdsrc-tauri/crates/app/src/backup.rssrc-tauri/crates/core/src/atomic_write.rs
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What
A write that never reaches its own cleanup (the app closed in the middle of a profile export, a crash, a power cut) leaves its
.partialfile beside the destination. Only the automatic backup folder was ever swept, so a partial left in a folder the user picked for an export stayed there for good, at the size of a whole archive.atomic_write::write_withnow removes, before it starts, the partials of the same destination that are more than a day old (STALE_PARTIAL_AGE, 24 h), which also frees their space for the new write.<stem>.<pid>-<n>.<ext>.partialshape: the token must be two digit runs, so a partial of another file whose name starts the same way (Main.old.waveflowbesideMain.waveflow) is never taken..replacedbackup of a Windows replace is never matched: it may hold the only copy of the old file.Since every writer goes through
write_with, this covers the profile export, the playlist M3U export and the pre-reset copy. The backup retention keeps its own sweep (each backup has a name of its own, so the writer never sees the partials of earlier runs) and now reads the same age constant.Tests
a_partial_is_recognised_as_its_target_s_and_no_other_s: own partials (with and without extension) match; the target itself, another target's partial, a.replacedbackup, a non-numeric or truncated token and another extension do not.the_next_write_removes_a_stale_partial_of_its_target: a day-old partial of the target goes, a fresh one and another target's day-old one stay.cargo test -p waveflow-core --lib atomic_write(10 passed, Windows),cargo clippy --workspace --all-targets -D warnings,cargo fmt --check.Docs:
ui.md(profile export) andplaylists.md(M3U export).Summary by CodeRabbit