Function resolve_worktree

src/daemon/git_watch.rs:712–721

Resolves a `worktrees/ ` leaf to `(worktree_root, branch)` by reading its `gitdir` file and the linked HEAD.

(common: &Path, name: &str)

/// Resolves a `worktrees/<name>` leaf to `(worktree_root, branch)` by reading
/// its `gitdir` file and the linked HEAD.
fn resolve_worktree(common: &Path, name: &str) -> Option<(PathBuf, String)> {
    let wt_meta = common.join("worktrees").join(name);
    let gitdir_file = wt_meta.join("gitdir");
    let gitdir_raw = std::fs::read_to_string(&gitdir_file).ok()?;
    // `gitdir` points at `<worktree>/.git`; the worktree root is its parent.
    let gitdir = PathBuf::from(gitdir_raw.trim());
    let wt_root = gitdir.parent()?.to_path_buf();
    let branch = crate::branch::current_branch(&wt_root)?;
    Some((wt_root, branch))
}

/// Runs branch-store GC for a project, logging what it removed.
///