Files
db9421dd3c Prevent index churn from refreshing worktrees (#8431)
* Prevent index churn from refreshing worktrees

* Cover IPC contract in worktree reliability gate

* Refresh background worktree heads without re-entering structural fanout

External commits, amends, and soft resets in non-active worktrees now reach
store rows through spawn-free Git metadata reads diffed in the watcher's
existing debounce, emitted only on real head moves. HEAD reflog appends become
status-only triggers, config.worktree becomes structural for sparse-flag
freshness, and the non-darwin poller gains a periodic ungated index re-stat
so in-place rewrites on coarse-mtime filesystems cannot be missed forever.

* Reject unsafe symref paths and validate object ids in the head reader

Ref content comes from repo files an attacker can craft. Backslash segments
traverse on Windows where join treats them as separators, and colons are
forbidden in Git ref names; both now fail isSafeRefName before any path is
built. Resolved values are additionally emitted only when they match a hex
SHA-1/SHA-256 object id, so no file content can leak through the identity
event even in principle.

---------

Co-authored-by: Brennan Benson <brennanbenson@Brennans-MacBook-Pro.local>
Co-authored-by: Brennan Benson <>
2026-07-12 23:43:33 -07:00
..