8f3577e5d2
Stop depending on an external binary needing to be on people's system. Use the code directly.
106 lines
3.1 KiB
Go
106 lines
3.1 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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"path"
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"runtime"
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"strings"
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"k8s.io/kubernetes/pkg/api"
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_ "k8s.io/kubernetes/pkg/api/v1"
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_ "k8s.io/kubernetes/pkg/expapi"
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_ "k8s.io/kubernetes/pkg/expapi/v1"
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pkg_runtime "k8s.io/kubernetes/pkg/runtime"
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"k8s.io/kubernetes/pkg/util"
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"github.com/golang/glog"
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flag "github.com/spf13/pflag"
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"golang.org/x/tools/imports"
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)
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const pkgBase = "k8s.io/kubernetes/pkg"
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var (
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functionDest = flag.StringP("funcDest", "f", "-", "Output for conversion functions; '-' means stdout")
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groupVersion = flag.StringP("version", "v", "api/v1", "groupPath/version for conversion.")
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)
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func main() {
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runtime.GOMAXPROCS(runtime.NumCPU())
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flag.Parse()
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var funcOut io.Writer
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if *functionDest == "-" {
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funcOut = os.Stdout
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} else {
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file, err := os.Create(*functionDest)
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if err != nil {
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glog.Fatalf("Couldn't open %v: %v", *functionDest, err)
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}
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defer file.Close()
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funcOut = file
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}
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data := new(bytes.Buffer)
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group, version := path.Split(*groupVersion)
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group = strings.TrimRight(group, "/")
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_, err := data.WriteString(fmt.Sprintf("package %v\n", version))
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if err != nil {
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glog.Fatalf("error writing package line: %v", err)
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}
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versionPath := path.Join(pkgBase, group, version)
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generator := pkg_runtime.NewConversionGenerator(api.Scheme.Raw(), versionPath)
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apiShort := generator.AddImport(path.Join(pkgBase, "api"))
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generator.AddImport(path.Join(pkgBase, "api/resource"))
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// TODO(wojtek-t): Change the overwrites to a flag.
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generator.OverwritePackage(version, "")
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for _, knownType := range api.Scheme.KnownTypes(version) {
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if !strings.HasPrefix(knownType.PkgPath(), versionPath) {
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continue
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}
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if err := generator.GenerateConversionsForType(version, knownType); err != nil {
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glog.Errorf("error while generating conversion functions for %v: %v", knownType, err)
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}
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}
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generator.RepackImports(util.NewStringSet())
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if err := generator.WriteImports(data); err != nil {
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glog.Fatalf("error while writing imports: %v", err)
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}
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if err := generator.WriteConversionFunctions(data); err != nil {
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glog.Fatalf("Error while writing conversion functions: %v", err)
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}
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if err := generator.RegisterConversionFunctions(data, fmt.Sprintf("%s.Scheme", apiShort)); err != nil {
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glog.Fatalf("Error while writing conversion functions: %v", err)
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}
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b, err := imports.Process("", data.Bytes(), nil)
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if err != nil {
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glog.Fatalf("error while update imports: %v", err)
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}
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if _, err := funcOut.Write(b); err != nil {
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glog.Fatalf("error while writing out the resulting file: %v", err)
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}
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}
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