code: func main() {
  	CheckArgs("<url>")
  	url := os.Args[1]
  
  	// Create a custom http(s) client with your config
  	customClient := &http.Client{
  		// accept any certificate (might be useful for testing)
  		Transport: &http.Transport{
  			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
  		},
  
  		// 15 second timeout
  		Timeout: 15 * time.Second,
  
  		// don't follow redirect
  		CheckRedirect: func(req *http.Request, via []*http.Request) error {
  			return http.ErrUseLastResponse
  		},
  	}
  
  	// Override http(s) default protocol to use our custom client
  	client.InstallProtocol("https", githttp.NewClient(customClient))
  
  	// Clone repository using the new client if the protocol is https://
  	Info("git clone %s", url)
  
  	r, err := git.Clone(memory.NewStorage(), nil, &git.CloneOptions{URL: url})
  	CheckIfError(err)
  
  	// Retrieve the branch pointed by HEAD
  	Info("git rev-parse HEAD")
  
  	head, err := r.Head()
  	CheckIfError(err)
  	fmt.Println(head.Hash())
  }
docs: // Here is an example to configure http client according to our own needs.