Method loadMultiImageDockerArchive

libimage/load.go:102–133

loadMultiImageDockerArchive loads the docker archive specified by ref. In case the path@reference notation was used, only the specifiec image will be loaded. Otherwise, all images will be loaded.

(ctx context.Context, ref types.ImageReference, options *CopyOptions)

// case the path@reference notation was used, only the specifiec image will be
// loaded.  Otherwise, all images will be loaded.
func (r *Runtime) loadMultiImageDockerArchive(ctx context.Context, ref types.ImageReference, options *CopyOptions) ([]string, error) {
	// If we cannot stat the path, it either does not exist OR the correct
	// syntax to reference an image within the archive was used, so we
	// should.
	path := ref.StringWithinTransport()
	if _, err := os.Stat(path); err != nil {
		return r.copyFromDockerArchive(ctx, ref, options)
	}

	reader, err := dockerArchiveTransport.NewReader(r.systemContextCopy(), path)
	if err != nil {
		return nil, err
	}

	refLists, err := reader.List()
	if err != nil {
		return nil, err
	}

	var copiedImages []string
	for _, list := range refLists {
		for _, listRef := range list {
			names, err := r.copyFromDockerArchiveReaderReference(ctx, reader, listRef, options)
			if err != nil {
				return nil, err
			}
			copiedImages = append(copiedImages, names...)
		}
	}

	return copiedImages, nil
}