pub fn acquire_worktree_lock(root: &Path) -> Result<RepoLock, u8>Expand description
Acquire the shared worktree/index lock for the repo rooted at root.
Hold the returned guard across the whole read-modify-write so a
second mutating mkit blocks (then times out) instead of racing on
the worktree + .mkit/index. On failure, the lock message has
already been printed to stderr and the returned u8 is the exit
code to propagate.
Mirrors the pattern already used in sparse_checkout and
remote_dispatch; new mutating commands should reuse this helper
rather than calling repo_lock::acquire_default directly.
ยงErrors
Returns exit::TEMPFAIL when the lock cannot be taken within the
default timeout (another mkit holds it, or a stale lockfile is
present).