// // Copyright 2021 The Sigstore Authors. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package signed import ( "errors" v1 "github.com/google/go-containerregistry/pkg/v1" "github.com/sigstore/cosign/v2/pkg/oci" "github.com/sigstore/cosign/v2/pkg/oci/empty" ) // ImageIndex returns an oci.SignedImageIndex form of the v1.ImageIndex with // no signatures. func ImageIndex(i v1.ImageIndex) oci.SignedImageIndex { return &index{ v1Index: i, } } type v1Index v1.ImageIndex type index struct { v1Index } var _ oci.SignedImageIndex = (*index)(nil) // SignedImage implements oci.SignedImageIndex func (ii *index) SignedImage(h v1.Hash) (oci.SignedImage, error) { i, err := ii.Image(h) if err != nil { return nil, err } return Image(i), nil } // SignedImageIndex implements oci.SignedImageIndex func (ii *index) SignedImageIndex(h v1.Hash) (oci.SignedImageIndex, error) { i, err := ii.ImageIndex(h) if err != nil { return nil, err } return ImageIndex(i), nil } // Signatures implements oci.SignedImageIndex func (*index) Signatures() (oci.Signatures, error) { return empty.Signatures(), nil } // Attestations implements oci.SignedImageIndex func (*index) Attestations() (oci.Signatures, error) { return empty.Signatures(), nil } // Attestations implements oci.SignedImage func (*index) Attachment(name string) (oci.File, error) { //nolint: revive return nil, errors.New("unimplemented") }