Review round 1: with no active photo saved (an empty Missing view leaves
none), open_stores worked the view out to pick its first photo, with the
same synchronous check of every original. Skip that on Missing Photos;
the test now opens both an empty and a full Missing view.
Forgetting untouched Local records on open kept the visible photos, and on
Missing Photos working them out stats every original on the UI thread
before the availability worker runs. A 37k-photo library on a sleeping
SMB share froze the window for minutes. Missing Photos lists library
photos only, never Local records, so it can keep nothing: skip it.
Local browse records can be most of a large catalog (85k photos, 90 %
Local: 313.5 MB snapshot). Untouched Local records of folders whose last
browse is older than library.preferences forgetLocalDays (default 30,
0 = never) are now removed from the catalog when the library opens (and by
library.forgetLocal {dryRun?, days?}), as journaled, non-undoable ops, then
compacted in the background. Files and XMP sidecars are never touched;
browsing the folder again catalogues them afresh.
Untouched = a Local file record, not deleted, not a virtual copy, whose
state still hashes to the fingerprint taken when the browse catalogued it
(any change keeps it); records from before fingerprints need every
user-editable field empty/default. Kept too: records in albums (or as
cover), stacks, sources of virtual copies, visible/selected/edited ones,
ones referenced by undo/redo, ones with a smart preview.
Per-folder last-browsed times live in the catalog (Op::SetBrowsed,
normalised with folder_key; re-stamped at most hourly). Old catalogs load
unchanged; folders without a time are stamped now, so nothing is forgotten
on the first open after the upgrade.
persist_bench (85k photos, 76.5k Local, every 7th folder recent, 1 in 50
rated): 63.8k forgotten, plan 162 ms, snapshot 313.5 MB -> 94.9 MB.
Settings -> Performance -> Local folders.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Alexander Bystrow