78ce5da988
A lot of packages use StringSet, but they don't use anything else from the util package. Moving StringSet into another package will shrink their dependency trees significantly.
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/sets"
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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(sets.NewString())
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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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