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* Bump go-containerregistry * update_deps in Go This removes one of two uses of the Python containerregistry I wanted to use this in a repo of ours that uses rules_docker, and didn't want anything that needs Python 2, so I thought moving this to Go was the right approach. Having a public binary for this would also be super useful for encouraging folks to use digests instead of tags. * Fix comment in BUILD file * Remote tools:update_deps and the related tools/update_deps.py * Consistent capitalisation of Go error messages * Unused import
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| // Copyright 2015 The Bazel Authors. 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. | ||
| ////////////////////////////////////////////////////////////////////// | ||
| // Synthesize a .bzl file containing the digests for a given repository. | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "flag" | ||
| "log" | ||
| "os" | ||
| "strings" | ||
| "text/template" | ||
| "time" | ||
|
|
||
| "github.com/google/go-containerregistry/pkg/crane" | ||
| ) | ||
|
|
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| const digestTemplate = `# Copyright 2017 The Bazel Authors. 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. | ||
| """ Generated file with dependencies for language rule.""" | ||
| # !!!! THIS IS A GENERATED FILE TO NOT EDIT IT BY HAND !!!! | ||
| # | ||
| # To regenerate this file, run ./update_deps.sh from the root of the | ||
| # git repository. | ||
| DIGESTS = { | ||
| # "{{.Debug}}" circa {{.Date}} | ||
| "debug": "{{.DebugTag}}", | ||
| # "{{.Latest}}" circa {{.Date}} | ||
| "latest": "{{.LatestTag}}", | ||
| } | ||
| ` | ||
|
|
||
| var ( | ||
| repository = flag.String("repository", "", "The repository for which to resolve tags.") | ||
| output = flag.String("output", "", "The output file to which we write the values.") | ||
| ) | ||
|
|
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| type Data struct { | ||
| DebugTag, LatestTag, Debug, Latest, Date string | ||
| } | ||
|
|
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| func main() { | ||
| flag.Parse() | ||
|
|
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| if *repository == "" { | ||
| log.Fatalln("Required option -repository was not specified.") | ||
| } | ||
| if *output == "" { | ||
| log.Fatalln("Required option -output was not specified.") | ||
| } | ||
| options := []crane.Option{} | ||
|
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| latest := *repository + ":latest" | ||
| latestDigest, err := crane.Digest(latest, options...) | ||
| if err != nil { | ||
| log.Fatalf("Computing digest for %s: %v", latest, err) | ||
| } | ||
|
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| debug := *repository + ":debug" | ||
| debugDigest, err := crane.Digest(debug, options...) | ||
| if err != nil { | ||
| if !strings.HasPrefix(err.Error(), "MANIFEST_UNKNOWN") { | ||
| log.Fatalf("Computing digest for %s: %v", debug, err) | ||
| } | ||
| debugDigest = latestDigest | ||
| } | ||
|
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| now := time.Now() | ||
| // Jan 2 15:04:05 2006 MST | ||
| date := now.Format("2006-01-02 15:04 -0700") | ||
|
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| t := template.Must(template.New("digestTemplate").Parse(digestTemplate)) | ||
|
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| r := Data{ | ||
| DebugTag: debugDigest, | ||
| LatestTag: latestDigest, | ||
| Debug: debug, | ||
| Latest: latest, | ||
| Date: date, | ||
| } | ||
|
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| f, err := os.Create(*output) | ||
| if err != nil { | ||
| log.Fatalf("Failed to open file %s: %s", *output, err) | ||
| } | ||
| defer f.Close() | ||
|
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| err = t.Execute(f, r) | ||
| if err != nil { | ||
| log.Fatalf("Executing template:", err) | ||
| } | ||
| } |
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