Function promptForInstallShim

install.go:74–111

(stdin io.Reader, repo *repo.Repo, shimPath string)

}

func promptForInstallShim(stdin io.Reader, repo *repo.Repo, shimPath string) (bool, error) {
	_, err := os.Stat(path.Join(repo.Root, shimPath))
	exists := true
	if os.IsNotExist(err) {
		exists = false
	} else if err != nil {
		return false, err
	}

	var message string
	if exists {
		message = fmt.Sprintf("Overwrite existing file %v?", shimPath)
	} else {
		message = fmt.Sprintf("Create file %v?", shimPath)
	}

	scanner := bufio.NewScanner(stdin)
	for {
		fmt.Printf("%v [yn] ", message)

		if !scanner.Scan() {
			return false, scanner.Err()
		}
		reply := strings.ToLower(scanner.Text())
		if len(reply) == 0 {
			continue
		}

		switch reply[0] {
		case 'y':
			return true, nil
		case 'n':
			return false, nil
		default:
			continue
		}
	}
}

func installShim(repo *repo.Repo, shimPath, quickhook, hook string, prompt bool) error {
	command, err := shimCommandForHook(quickhook, hook)