func unpackZip()

in internal/version/version.go [228:270]

• 38 lines of code
• 10 McCabe index (conditional complexity)

func unpackZip(targetDir, archiveFile string) error {
	zr, err := zip.OpenReader(archiveFile)
	if err != nil {
		return err
	}
	defer zr.Close()

	for _, f := range zr.File {
		name := strings.TrimPrefix(f.Name, "go/")

		outpath := filepath.Join(targetDir, name)
		if f.FileInfo().IsDir() {
			if err := os.MkdirAll(outpath, 0755); err != nil {
				return err
			}
			continue
		}

		rc, err := f.Open()
		if err != nil {
			return err
		}

		// File
		if err := os.MkdirAll(filepath.Dir(outpath), 0755); err != nil {
			return err
		}
		out, err := os.OpenFile(outpath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
		if err != nil {
			return err
		}
		_, err = io.Copy(out, rc)
		rc.Close()
		if err != nil {
			out.Close()
			return err
		}
		if err := out.Close(); err != nil {
			return err
		}
	}
	return nil
}