# Objective

Fix stale Git state in Zed when repository metadata changes are reported
only as a bare `.git` directory event.

On macOS, file watcher events can be coalesced such that Git operations
only surface as a `Changed` event for the `.git` directory itself,
rather than individual events for files like `.git/index` or
`.git/HEAD`. Zed previously ignored bare `.git` directory events before
scheduling a Git metadata refresh, which could leave the Git panel
showing stale changes or an outdated history even though `git status` /
`git log` reflected the latest state.

## Solution

Treat meaningful bare `.git` directory events as Git repository updates
before skipping them from normal worktree scanning.

This preserves the existing behavior of not scanning `.git` as regular
project content, while still notifying the Git repository tracking path
that repository metadata may have changed. As a result, Git state such
as `HEAD` and file statuses are refreshed when `.git` itself is the only
watcher event.

Updated the existing worktree test expectations so bare `.git` events
now trigger `UpdatedGitRepositories`, while skipped files like
`.git/index.lock` still do not.

Added a test covering the full project/Git path:

- repo initially has old `HEAD` and a modified file status
- fake Git state is updated to represent a commit
- only a bare `.git Changed` event is emitted
- Zed refreshes the repository snapshot, observes the new `HEAD`, and
clears the stale file status

## Testing

The new tests cover the full project/Git path scenario described above.
It fails without the fix and passes with the fix. Unfortunately, i was
unable to reproduce the issue deterministically enough to test it end to
end.

## Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

---

Release Notes:

- Fixed stale Git panel state after repository metadata changes.

Co-authored-by: Eric Holk <eric@zed.dev>