Function Key

internal/plugin/cache/cache.go:32–67

Key generates a cache key based on a url or scp string. The key is file system safe.

(repo string)

// Key generates a cache key based on a url or scp string. The key is file
// system safe.
func Key(repo string) (string, error) {
	var (
		u   *url.URL
		err error
	)
	if m := scpSyntaxRe.FindStringSubmatch(repo); m != nil {
		// Match SCP-like syntax and convert it to a URL.
		// Eg, "git@github.com:user/repo" becomes
		// "ssh://git@github.com/user/repo".
		u = &url.URL{
			User: url.User(m[1]),
			Host: m[2],
			Path: "/" + m[3],
		}
	} else {
		u, err = url.Parse(repo)
		if err != nil {
			return "", err
		}
	}

	var key strings.Builder
	if u.Scheme != "" {
		key.WriteString(u.Scheme)
		key.WriteString("-")
	}
	if u.User != nil && u.User.Username() != "" {
		key.WriteString(u.User.Username())
		key.WriteString("-")
	}
	key.WriteString(u.Host)
	if u.Path != "" {
		key.WriteString(strings.ReplaceAll(u.Path, "/", "-"))
	}
	return strings.ReplaceAll(key.String(), ":", "-"), nil
}