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Diffstat (limited to 'pkg/v1/layer.go')
-rw-r--r-- | pkg/v1/layer.go | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/pkg/v1/layer.go b/pkg/v1/layer.go new file mode 100644 index 0000000..57447d2 --- /dev/null +++ b/pkg/v1/layer.go @@ -0,0 +1,42 @@ +// 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 ( + "io" + + "github.com/google/go-containerregistry/pkg/v1/types" +) + +// Layer is an interface for accessing the properties of a particular layer of a v1.Image +type Layer interface { + // Digest returns the Hash of the compressed layer. + Digest() (Hash, error) + + // DiffID returns the Hash of the uncompressed layer. + DiffID() (Hash, error) + + // Compressed returns an io.ReadCloser for the compressed layer contents. + Compressed() (io.ReadCloser, error) + + // Uncompressed returns an io.ReadCloser for the uncompressed layer contents. + Uncompressed() (io.ReadCloser, error) + + // Size returns the compressed size of the Layer. + Size() (int64, error) + + // MediaType returns the media type of the Layer. + MediaType() (types.MediaType, error) +} |