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godeps-json-updater.go
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godeps-json-updater.go
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/*
Copyright 2016 The Kubernetes 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.
*/
package main
import (
"encoding/json"
"log"
"os"
"strings"
flag "github.com/spf13/pflag"
)
var (
godepsFile = flag.String("godeps-file", "", "absolute path to Godeps.json")
)
var ignoredPrefixes = []string{
"k8s.io/client-go",
"k8s.io/apimachinery",
"k8s.io/apiserver",
"k8s.io/kube-aggregator",
"k8s.io/kube-apiextensions-server",
"k8s.io/metrics",
}
type Dependency struct {
ImportPath string
Comment string `json:",omitempty"`
Rev string
}
type Godeps struct {
ImportPath string
GoVersion string
GodepVersion string
Packages []string `json:",omitempty"` // Arguments to save, if any.
Deps []Dependency
}
func main() {
flag.Parse()
var g Godeps
if len(*godepsFile) == 0 {
log.Fatalf("absolute path to Godeps.json is required")
}
f, err := os.OpenFile(*godepsFile, os.O_RDWR, 0666)
if err != nil {
log.Fatalf("cannot open file %q: %v", *godepsFile, err)
}
defer f.Close()
err = json.NewDecoder(f).Decode(&g)
if err != nil {
log.Fatalf("Unable to parse %q: %v", *godepsFile, err)
}
i := 0
for _, dep := range g.Deps {
ignored := false
for _, ignoredPrefix := range ignoredPrefixes {
if strings.HasPrefix(dep.ImportPath, ignoredPrefix) {
ignored = true
}
}
if ignored {
continue
}
g.Deps[i] = dep
i++
}
g.Deps = g.Deps[:i]
b, err := json.MarshalIndent(g, "", "\t")
if err != nil {
log.Fatal(err)
}
n, err := f.WriteAt(append(b, '\n'), 0)
if err != nil {
log.Fatal(err)
}
if err := f.Truncate(int64(n)); err != nil {
log.Fatal(err)
}
}