mirror of
https://github.com/l0ng-ai/tty7.git
synced 2026-09-22 16:02:24 +00:00
l0ng-ai
4b7719ba5f
On Linux, an idle window with a repository open ran `git status -uall` about 2.6 times a second, forever. `notify`'s inotify backend subscribes with `WatchMask::OPEN`, so every `open(2)` under a watched directory is an event — and `git status` opens `.git/index`, `.git/HEAD` and `refs/heads/*`, all of which the source control watch covers. The read that answers "did this repository change" was itself an event saying it may have changed, so each answer scheduled the next question. Measured on the Linux runner: 78 debounce bursts in 30 seconds, from one real change. `Debounce`'s doc argued this was impossible because `GIT_OPTIONAL_LOCKS=0` stops `git status` writing the index back. That covers writes; `IN_OPEN` fires on reads. macOS FSEvents has no equivalent, which is why it was invisible on the machine it was written on. `is_content_change` drops `Access(Open | Read | Close(Read))` and keeps `Access(Close(Write))`, at both the host watch and the config hot-reload watch. Guarded by a host conformance case rather than a platform test, verified red on the Linux runner with the filter removed. Also here, and how the above was found: the `render_idle` tests counted frames across a window they advance a virtual clock over, while the pane runs its own git pipeline off a 300ms timer on that same clock that nothing advanced during settle — so the measurement set off the pane's first `git` run and raced its landing. `test_window::quiesce` settles both clocks, and the kernel's, before counting. That turned #523 from a 1-in-50 flake into a deterministic failure, which is what made the watch loop findable. Third: `ssh_config::an_alias_added_to_an_included_file_is_seen_without_touching_the_root` (from #528, already on main) failed on every Windows run of this branch. The cache keys on mtime and the test writes twice inside one ~15ms Windows clock tick, so the cache was right to say nothing changed. Test-only; the poll behind it runs at 4Hz and real edits arrive at human speed. Closes #523.