Function readImage

core/metadata/images.go:379–417

(image *images.Image, bkt *bolt.Bucket)

}

func readImage(image *images.Image, bkt *bolt.Bucket) error {
	if err := boltutil.ReadTimestamps(bkt, &image.CreatedAt, &image.UpdatedAt); err != nil {
		return err
	}

	labels, err := boltutil.ReadLabels(bkt)
	if err != nil {
		return err
	}
	image.Labels = labels

	image.Target.Annotations, err = boltutil.ReadAnnotations(bkt)
	if err != nil {
		return err
	}

	tbkt := bkt.Bucket(bucketKeyTarget)
	if tbkt == nil {
		return errors.New("unable to read target bucket")
	}
	return tbkt.ForEach(func(k, v []byte) error {
		if v == nil {
			return nil // skip it? a bkt maybe?
		}

		// TODO(stevvooe): This is why we need to use byte values for
		// keys, rather than full arrays.
		switch string(k) {
		case string(bucketKeyDigest):
			image.Target.Digest = digest.Digest(v)
		case string(bucketKeyMediaType):
			image.Target.MediaType = string(v)
		case string(bucketKeySize):
			image.Target.Size, _ = binary.Varint(v)
		}

		return nil
	})
}

func writeImage(bkt *bolt.Bucket, image *images.Image) error {
	if err := boltutil.WriteTimestamps(bkt, image.CreatedAt, image.UpdatedAt); err != nil {