func copyCppConfigsToOutputDir()

in pkg/rbeconfigsgen/rbeconfigsgen.go [791:826]

35 lines of code
9 McCabe index (conditional complexity)


func copyCppConfigsToOutputDir(outDir string, cppConfigsTarball string) error {
	in, err := os.Open(cppConfigsTarball)
	if err != nil {
		return fmt.Errorf("unable to open input tarball %q for reading: %w", cppConfigsTarball, err)
	}
	defer in.Close()
	inTar := tar.NewReader(in)

	outDir = path.Join(outDir, "cc")
	for {
		h, err := inTar.Next()
		if err == io.EOF {
			break
		}
		if err != nil {
			return fmt.Errorf("error while reading input tarball %q: %w", cppConfigsTarball, err)
		}
		if h.Typeflag != tar.TypeReg {
			continue
		}
		filePath := path.Join(outDir, h.Name)
		dirPath := path.Dir(filePath)
		if err := os.MkdirAll(dirPath, os.ModePerm); err != nil {
			return fmt.Errorf("unable to create directory %q to extract file %q from the C++ config tarball %q: %w", dirPath, h.Name, cppConfigsTarball, err)
		}
		o, err := os.Create(filePath)
		if err != nil {
			return fmt.Errorf("failed to create file %q for writing %q from the C++ config tarball %q: %w", filePath, h.Name, cppConfigsTarball, err)
		}
		if _, err := io.Copy(o, inTar); err != nil {
			return fmt.Errorf("error while extracting %q from %q to %q: %w", h.Name, cppConfigsTarball, filePath, err)
		}
		o.Close()
	}
	return nil
}