Method tryLocalCanonicalConfigMetadata

engine/server/resolver/metadata.go:42–84

(
	ctx context.Context,
	ref string,
	opts ResolveImageConfigOpts,
)

}

func (r *Resolver) tryLocalCanonicalConfigMetadata(
	ctx context.Context,
	ref string,
	opts ResolveImageConfigOpts,
) (string, digest.Digest, []byte, bool, error) {
	parsed, err := reference.ParseNormalizedNamed(ref)
	if err != nil {
		return "", "", nil, false, nil //nolint:nilerr // Invalid refs are not local-cache hits; the remote resolver reports the real error.
	}
	canonical, ok := parsed.(reference.Canonical)
	if !ok {
		return "", "", nil, false, nil
	}

	rootDesc, found, err := r.localCanonicalRootDescriptor(ctx, canonical.Digest())
	if err != nil || !found {
		return "", "", nil, found, err
	}

	manifestDesc, manifest, found, err := tryResolveLocalManifestDescriptor(ctx, r.contentStore, rootDesc, imageConfigPlatformMatcher(opts.Platform), false)
	if err != nil || !found {
		return "", "", nil, false, err
	}

	configBytes, err := content.ReadBlob(ctx, r.contentStore, manifest.Config)
	if err != nil {
		if cerrdefs.IsNotFound(err) {
			return "", "", nil, false, nil
		}
		return "", "", nil, false, err
	}

	refspec, err := ctdreference.Parse(canonical.String())
	if err != nil {
		return "", "", nil, false, err
	}
	ok, err = r.localMetadataHasMatchingSource(ctx, refspec, rootDesc, manifestDesc, manifest.Config)
	if err != nil || !ok {
		return "", "", nil, false, err
	}

	return canonical.String(), rootDesc.Digest, configBytes, true, nil
}

func (r *Resolver) ensureImageConfigMetadata(
	ctx context.Context,