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// Copyright 2019 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 cache_test
import (
"fmt"
"log"
"os"
"github.com/google/go-containerregistry/pkg/v1/cache"
"github.com/google/go-containerregistry/pkg/v1/random"
)
func ExampleImage() {
img, err := random.Image(1024*1024, 3)
if err != nil {
log.Fatal(err)
}
dir, err := os.MkdirTemp("", "")
if err != nil {
log.Fatal(err)
}
fs := cache.NewFilesystemCache(dir)
// cached will cache layers from img using the fs cache
cached := cache.Image(img, fs)
// Use cached as you would use img.
digest, err := cached.Digest()
if err != nil {
log.Fatal(err)
}
fmt.Println(digest)
}
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