Method Diff

contrib/diffservice/service.go:77–111

(ctx context.Context, dr *diffapi.DiffRequest)

}

func (s *service) Diff(ctx context.Context, dr *diffapi.DiffRequest) (*diffapi.DiffResponse, error) {
	if s.comparer == nil {
		return nil, errgrpc.ToGRPC(errdefs.ErrNotImplemented)
	}
	var (
		ocidesc ocispec.Descriptor
		err     error
		aMounts = mount.FromProto(dr.Left)
		bMounts = mount.FromProto(dr.Right)
	)

	var opts []diff.Opt
	if dr.MediaType != "" {
		opts = append(opts, diff.WithMediaType(dr.MediaType))
	}
	if dr.Ref != "" {
		opts = append(opts, diff.WithReference(dr.Ref))
	}
	if dr.Labels != nil {
		opts = append(opts, diff.WithLabels(dr.Labels))
	}
	if dr.SourceDateEpoch != nil {
		tm := dr.SourceDateEpoch.AsTime()
		opts = append(opts, diff.WithSourceDateEpoch(&tm))
	}

	ocidesc, err = s.comparer.Compare(ctx, aMounts, bMounts, opts...)
	if err != nil {
		return nil, errgrpc.ToGRPC(err)
	}

	return &diffapi.DiffResponse{
		Diff: oci.DescriptorToProto(ocidesc),
	}, nil
}