func addDigestReference(store reference.Store, ref reference.Named, dgst digest.Digest, id digest.Digest) error {
dgstRef, err := reference.WithDigest(ref, dgst)
if err != nil {
return err
}
if oldTagID, err := store.Get(dgstRef); err == nil {
if oldTagID != id {
// Updating digests not supported by reference store
logrus.Errorf("Image ID for digest %s changed from %s to %s, cannot update", dgst.String(), oldTagID, id)
}
return nil
} else if err != reference.ErrDoesNotExist {
return err
}
return store.AddDigest(dgstRef, id, true)
}
