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// Copyright 2018 Google LLC All Rights Reserved.
//
// 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 v1
import (
"github.com/google/go-containerregistry/pkg/v1/types"
)
// Image defines the interface for interacting with an OCI v1 image.
type Image interface {
// Layers returns the ordered collection of filesystem layers that comprise this image.
// The order of the list is oldest/base layer first, and most-recent/top layer last.
Layers() ([]Layer, error)
// MediaType of this image's manifest.
MediaType() (types.MediaType, error)
// Size returns the size of the manifest.
Size() (int64, error)
// ConfigName returns the hash of the image's config file, also known as
// the Image ID.
ConfigName() (Hash, error)
// ConfigFile returns this image's config file.
ConfigFile() (*ConfigFile, error)
// RawConfigFile returns the serialized bytes of ConfigFile().
RawConfigFile() ([]byte, error)
// Digest returns the sha256 of this image's manifest.
Digest() (Hash, error)
// Manifest returns this image's Manifest object.
Manifest() (*Manifest, error)
// RawManifest returns the serialized bytes of Manifest()
RawManifest() ([]byte, error)
// LayerByDigest returns a Layer for interacting with a particular layer of
// the image, looking it up by "digest" (the compressed hash).
LayerByDigest(Hash) (Layer, error)
// LayerByDiffID is an analog to LayerByDigest, looking up by "diff id"
// (the uncompressed hash).
LayerByDiffID(Hash) (Layer, error)
}
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