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//
// 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"
)
// Image returns an oci.SignedImage form of the v1.Image with no signatures.
func Image(i v1.Image) oci.SignedImage {
return &image{
Image: i,
}
}
type image struct {
v1.Image
}
var _ oci.SignedImage = (*image)(nil)
// Signatures implements oci.SignedImage
func (*image) Signatures() (oci.Signatures, error) {
return empty.Signatures(), nil
}
// Attestations implements oci.SignedImage
func (*image) Attestations() (oci.Signatures, error) {
return empty.Signatures(), nil
}
// Attestations implements oci.SignedImage
func (*image) Attachment(name string) (oci.File, error) { //nolint: revive
return nil, errors.New("unimplemented")
}
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