oci/archive/oci_dest.go
func tarDirectory(src, dst string) error {
	// input is a stream of bytes from the archive of the directory at path
	input, err := archive.Tar(src, archive.Uncompressed)
	if err != nil {
		return errors.Wrapf(err, "error retrieving stream of bytes from %q", src)
	}

	// creates the tar file
	outFile, err := os.Create(dst)
	if err != nil {
		return errors.Wrapf(err, "error creating tar file %q", dst)
	}
	defer outFile.Close()

	// copies the contents of the directory to the tar file
	// TODO: This can take quite some time, and should ideally be cancellable using a context.Context.
	_, err = io.Copy(outFile, input)

	return err
}
func tarDirectory(src, dst string) error {
	// input is a stream of bytes from the archive of the directory at path
	input, err := archive.Tar(src, archive.Uncompressed)
	if err != nil {
		return errors.Wrapf(err, "error retrieving stream of bytes from %q", src)
	}

	// creates the tar file
	outFile, err := os.Create(dst)
	if err != nil {
		return errors.Wrapf(err, "error creating tar file %q", dst)
	}
	defer outFile.Close()

	// copies the contents of the directory to the tar file
	// TODO: This can take quite some time, and should ideally be cancellable using a context.Context.
	_, err = io.Copy(outFile, input)

	return err
}
// tar converts the directory at src and saves it to dst