func urlToFileName()

in main/files.go [64:78]

• 14 lines of code
• 4 McCabe index (conditional complexity)

func urlToFileName(fileURL string) (string, error) {
	u, err := url.Parse(fileURL)
	if err != nil {
		return "", errors.Wrapf(err, "unable to parse URL: %q", fileURL)
	}

	s := strings.Split(u.Path, "/")
	if len(s) > 0 {
		fn := s[len(s)-1]
		if fn != "" {
			return fn, nil
		}
	}
	return "", fmt.Errorf("cannot extract file name from URL: %q", fileURL)
}