Function removeDirIfEmpty

worktree.go:1054–1070

removeDirIfEmpty will remove the supplied directory `dir` if `dir` is empty returns true if the directory was removed

(fs billy.Filesystem, dir string)

// `dir` is empty
// returns true if the directory was removed
func removeDirIfEmpty(fs billy.Filesystem, dir string) (bool, error) {
	files, err := fs.ReadDir(dir)
	if err != nil {
		return false, err
	}

	if len(files) > 0 {
		return false, nil
	}

	err = fs.Remove(dir)
	if err != nil {
		return false, err
	}

	return true, nil
}

type indexBuilder struct {
	entries map[string]*index.Entry