Files
picpeak/backend
Paul Nothaft 7a0a13320c fix(images): probe and clean up preview tiers under the extension the encoder actually wrote
generatePreviewImage rewrites the output extension to match the encoding
it chose, .jpg or .webp for alpha and multi-frame sources. The tier
lookup in ensurePreviewImageAtWidth and the cleanup list in
previewTierKeys kept the SOURCE extension instead, so for anything but a
lowercase .jpg source the stat never matched: every tier request for a
.png, .JPG, .jpeg, .heic or RAW photo re-ran Sharp, and cleanup never
found the files it left behind, which accumulated for the life of the
install.

Both now derive every key the tier can live under: the .jpg and .webp
candidates, plus the source-extension key last so tiers written before
the rewrite are still found by lookup and by cleanup.

Follow-up to issue 1020, where the mismatch was identified during review.
2026-09-08 08:33:50 +02:00
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