func homedir()

in internal/version/version.go [425:447]

• 19 lines of code
• 7 McCabe index (conditional complexity)

func homedir() (string, error) {
	// This could be replaced with os.UserHomeDir, but it was introduced too
	// recently, and we want this to work with go as packaged by Linux
	// distributions. Note that user.Current is not enough as it does not
	// prioritize $HOME. See also Issue 26463.
	switch getOS() {
	case "plan9":
		return "", fmt.Errorf("%q not yet supported", runtime.GOOS)
	case "windows":
		if dir := os.Getenv("USERPROFILE"); dir != "" {
			return dir, nil
		}
		return "", errors.New("can't find user home directory; %USERPROFILE% is empty")
	default:
		if dir := os.Getenv("HOME"); dir != "" {
			return dir, nil
		}
		if u, err := user.Current(); err == nil && u.HomeDir != "" {
			return u.HomeDir, nil
		}
		return "", errors.New("can't find user home directory; $HOME is empty")
	}
}