func()

in server.go [265:314]

• 42 lines of code
• 8 McCabe index (conditional complexity)

func (f *toolFormatter) Format(in []File, outSink io.Writer) (out []FormattedFile, err error) {
	cmd := exec.Command(f.bin, f.args...)

	tmpDir, err := ioutil.TempDir("", "gerritfmt")
	if err != nil {
		return nil, err
	}
	defer os.RemoveAll(tmpDir)

	for _, f := range in {
		dir, base := filepath.Split(f.Name)
		dir = filepath.Join(tmpDir, dir)
		if err := os.MkdirAll(dir, 0755); err != nil {
			return nil, err
		}

		if err := ioutil.WriteFile(filepath.Join(dir, base), f.Content, 0644); err != nil {
			return nil, err
		}

		cmd.Args = append(cmd.Args, f.Name)
	}
	cmd.Dir = tmpDir

	var errBuf, outBuf bytes.Buffer
	cmd.Stdout = &outBuf
	cmd.Stderr = &errBuf
	log.Println("running", cmd.Args, "in", tmpDir)
	if err := cmd.Run(); err != nil {
		log.Printf("error %v, stderr %s, stdout %s", err, errBuf.String(),
			outBuf.String())
		return nil, err
	}

	for _, f := range in {
		c, err := ioutil.ReadFile(filepath.Join(tmpDir, f.Name))
		if err != nil {
			return nil, err
		}

		out = append(out, FormattedFile{
			File: File{
				Name:    f.Name,
				Content: c,
			},
		})
	}

	return out, nil
}