1 // Copyright 2018 Google LLC All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package layout 16 17 import ( 18 "io" 19 "os" 20 21 v1 "github.com/google/go-containerregistry/pkg/v1" 22 ) 23 24 // Blob returns a blob with the given hash from the Path. 25 func (l Path) Blob(h v1.Hash) (io.ReadCloser, error) { 26 return os.Open(l.blobPath(h)) 27 } 28 29 // Bytes is a convenience function to return a blob from the Path as 30 // a byte slice. 31 func (l Path) Bytes(h v1.Hash) ([]byte, error) { 32 return os.ReadFile(l.blobPath(h)) 33 } 34 35 func (l Path) blobPath(h v1.Hash) string { 36 return l.path("blobs", h.Algorithm, h.Hex) 37 } 38