* fix(cache): collect the temp files abandoned writes leave behind
DiskCache.set() writes through mkstemp then os.replace, and removes its
own temp file in a finally. That covers a write that fails, but not a
process that dies between the two -- a SIGKILL, a lost restart race, a
power cut, all ordinary on a Pi.
Nothing ever collected what was left. The temp names are
".<key>.json.<random>", and cleanup_expired_files listed only names
ending in .json, so every one of them was invisible to the sweep for as
long as the card had been in service. On the dev rig: 76 files,
1,050 MB, 81% of the whole cache directory, the oldest six months old.
The startup sweep reported "18/8864 files deleted, 0.01 MB freed" while
sitting on top of a gigabyte it could not see.
They are removed after an hour. A real write holds its temp file for
milliseconds, so that is far outside any in-flight write while still
clearing the same day's debris, and it is deliberately not tied to the
retention policies: those say how long data stays useful, and a
half-written file never was.
The predicate is tested harder than the sweep, because a false positive
deletes real data. It matches the shape set() creates rather than just a
leading dot, so a completed ".json", a stray .gitignore, and a
"weather.json.bak" are all left alone -- and one test drives set()
itself and asserts the names it produces are matched, so the writer and
the predicate cannot drift apart.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Udr6MfaFLUPhX5Fgo67Jf5
* fix(cache): count swept temp files as scanned
files_scanned only counted completed .json files, so a sweep that
removed orphans reported more deleted than it had looked at -- the
summary line renders "<deleted>/<scanned>", which came out as "76/1".
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Udr6MfaFLUPhX5Fgo67Jf5
---------
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
