Read lines from a buffer of bytes

gistfile1.go

 func GetBranches() ([]string, error) {
         cmd := "git"
         args := []string{"ls-remote", "--heads"}
         if debug {
                 log.Printf("%s %v\n", cmd, args)
         }

         command := exec.Command(cmd, args...)
         if data, err := command.Output(); err != nil {
                 return nil, err
         } else {
                 r := make([]string, 0)
                 readbuffer := bytes.NewBuffer(data)
                 reader := bufio.NewReader(readbuffer)
                 scanner := bufio.NewScanner(reader)
                 for scanner.Scan() {
                         parts := strings.Fields(scanner.Text())
                         branchName := strings.Replace(parts[1], "refs/heads/", "", -1)
                         r = append(r, branchName)
                 }
                 return r, nil
         }
 }