Function detachCmds

pkg/cmd/pr/checkout/checkout.go:322–340

detachCmds returns the commands for a detached checkout. When reusing an existing linked worktree, FETCH_HEAD must be written inside it (it is per-worktree), so the fetch runs with -C .

(fetchCmd []string, worktree string, reuseWorktree bool)

// existing linked worktree, FETCH_HEAD must be written inside it (it is
// per-worktree), so the fetch runs with -C <path>.
func detachCmds(fetchCmd []string, worktree string, reuseWorktree bool) [][]string {
	if worktree == "" {
		return [][]string{
			fetchCmd,
			{"checkout", "--detach", "FETCH_HEAD"},
		}
	}

	if reuseWorktree {
		return [][]string{
			append([]string{"-C", worktree}, fetchCmd...),
			{"-C", worktree, "checkout", "--detach", "FETCH_HEAD"},
		}
	}
	return [][]string{
		fetchCmd,
		{"worktree", "add", "--detach", "--", worktree, "FETCH_HEAD"},
	}
}

// syncBranchCmds syncs a branch to ref: a hard reset when force is set,
// otherwise a fast-forward-only merge. A non-empty path runs the commands there.