Function parseWorktreePorcelain

vcs/git/git_worktree.go:71–107

parseWorktreePorcelain parses the output of `git worktree list --porcelain`. Stanzas are separated by blank lines. Each stanza begins with `worktree `, optionally followed by `HEAD ` and either `branch `, `detached`, or `bare`. The first stanza describes the primary worktree.

(out string)

// optionally followed by `HEAD <sha>` and either `branch <ref>`, `detached`, or
// `bare`. The first stanza describes the primary worktree.
func parseWorktreePorcelain(out string) []Worktree {
	var (
		result   []Worktree
		current  Worktree
		hasEntry bool
	)
	flush := func() {
		if hasEntry {
			current.IsPrimary = len(result) == 0
			result = append(result, current)
		}
		current = Worktree{}
		hasEntry = false
	}
	for _, line := range strings.Split(out, "\n") {
		trimmed := strings.TrimRight(line, "\r")
		if trimmed == "" {
			flush()
			continue
		}
		key, value, _ := strings.Cut(trimmed, " ")
		switch key {
		case "worktree":
			flush()
			current.Path = filepath.Clean(value)
			hasEntry = true
		case "HEAD":
			current.Head = value
		case "branch":
			current.Branch = value
		case "detached", "bare", "locked":
			// no-op for our purposes
		}
	}
	flush()
	return result
}