a3bf13711c
I had to run `make generate`. Some API functions got additional parameters `Options` and `Context`. I used empty options and `context.TODO()` for now. Signed-off-by: leonnicolas <leonloechner@gmx.de>
348 lines
13 KiB
Go
348 lines
13 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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 generators
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import (
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"fmt"
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"path"
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"path/filepath"
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"strings"
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"k8s.io/gengo/args"
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"k8s.io/gengo/generator"
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"k8s.io/gengo/namer"
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"k8s.io/gengo/types"
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"k8s.io/klog/v2"
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"k8s.io/code-generator/cmd/client-gen/generators/util"
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clientgentypes "k8s.io/code-generator/cmd/client-gen/types"
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informergenargs "k8s.io/code-generator/cmd/informer-gen/args"
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genutil "k8s.io/code-generator/pkg/util"
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)
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// NameSystems returns the name system used by the generators in this package.
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func NameSystems(pluralExceptions map[string]string) namer.NameSystems {
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return namer.NameSystems{
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"public": namer.NewPublicNamer(0),
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"private": namer.NewPrivateNamer(0),
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"raw": namer.NewRawNamer("", nil),
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"publicPlural": namer.NewPublicPluralNamer(pluralExceptions),
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"allLowercasePlural": namer.NewAllLowercasePluralNamer(pluralExceptions),
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"lowercaseSingular": &lowercaseSingularNamer{},
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}
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}
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// lowercaseSingularNamer implements Namer
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type lowercaseSingularNamer struct{}
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// Name returns t's name in all lowercase.
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func (n *lowercaseSingularNamer) Name(t *types.Type) string {
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return strings.ToLower(t.Name.Name)
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}
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// DefaultNameSystem returns the default name system for ordering the types to be
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// processed by the generators in this package.
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func DefaultNameSystem() string {
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return "public"
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}
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// objectMetaForPackage returns the type of ObjectMeta used by package p.
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func objectMetaForPackage(p *types.Package) (*types.Type, bool, error) {
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generatingForPackage := false
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for _, t := range p.Types {
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if !util.MustParseClientGenTags(append(t.SecondClosestCommentLines, t.CommentLines...)).GenerateClient {
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continue
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}
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generatingForPackage = true
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for _, member := range t.Members {
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if member.Name == "ObjectMeta" {
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return member.Type, isInternal(member), nil
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}
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}
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}
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if generatingForPackage {
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return nil, false, fmt.Errorf("unable to find ObjectMeta for any types in package %s", p.Path)
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}
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return nil, false, nil
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}
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// isInternal returns true if the tags for a member do not contain a json tag
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func isInternal(m types.Member) bool {
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return !strings.Contains(m.Tags, "json")
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}
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func packageForInternalInterfaces(base string) string {
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return filepath.Join(base, "internalinterfaces")
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}
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// Packages makes the client package definition.
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func Packages(context *generator.Context, arguments *args.GeneratorArgs) generator.Packages {
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boilerplate, err := arguments.LoadGoBoilerplate()
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if err != nil {
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klog.Fatalf("Failed loading boilerplate: %v", err)
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}
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customArgs, ok := arguments.CustomArgs.(*informergenargs.CustomArgs)
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if !ok {
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klog.Fatalf("Wrong CustomArgs type: %T", arguments.CustomArgs)
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}
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internalVersionPackagePath := filepath.Join(arguments.OutputPackagePath)
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externalVersionPackagePath := filepath.Join(arguments.OutputPackagePath)
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if !customArgs.SingleDirectory {
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internalVersionPackagePath = filepath.Join(arguments.OutputPackagePath, "internalversion")
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externalVersionPackagePath = filepath.Join(arguments.OutputPackagePath, "externalversions")
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}
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var packageList generator.Packages
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typesForGroupVersion := make(map[clientgentypes.GroupVersion][]*types.Type)
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externalGroupVersions := make(map[string]clientgentypes.GroupVersions)
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internalGroupVersions := make(map[string]clientgentypes.GroupVersions)
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groupGoNames := make(map[string]string)
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for _, inputDir := range arguments.InputDirs {
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p := context.Universe.Package(genutil.Vendorless(inputDir))
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objectMeta, internal, err := objectMetaForPackage(p)
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if err != nil {
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klog.Fatal(err)
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}
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if objectMeta == nil {
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// no types in this package had genclient
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continue
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}
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var gv clientgentypes.GroupVersion
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var targetGroupVersions map[string]clientgentypes.GroupVersions
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if internal {
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lastSlash := strings.LastIndex(p.Path, "/")
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if lastSlash == -1 {
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klog.Fatalf("error constructing internal group version for package %q", p.Path)
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}
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gv.Group = clientgentypes.Group(p.Path[lastSlash+1:])
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targetGroupVersions = internalGroupVersions
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} else {
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parts := strings.Split(p.Path, "/")
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gv.Group = clientgentypes.Group(parts[len(parts)-2])
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gv.Version = clientgentypes.Version(parts[len(parts)-1])
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targetGroupVersions = externalGroupVersions
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}
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groupPackageName := gv.Group.NonEmpty()
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gvPackage := path.Clean(p.Path)
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// If there's a comment of the form "// +groupName=somegroup" or
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// "// +groupName=somegroup.foo.bar.io", use the first field (somegroup) as the name of the
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// group when generating.
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if override := types.ExtractCommentTags("+", p.Comments)["groupName"]; override != nil {
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gv.Group = clientgentypes.Group(override[0])
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}
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// If there's a comment of the form "// +groupGoName=SomeUniqueShortName", use that as
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// the Go group identifier in CamelCase. It defaults
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groupGoNames[groupPackageName] = namer.IC(strings.Split(gv.Group.NonEmpty(), ".")[0])
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if override := types.ExtractCommentTags("+", p.Comments)["groupGoName"]; override != nil {
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groupGoNames[groupPackageName] = namer.IC(override[0])
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}
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var typesToGenerate []*types.Type
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for _, t := range p.Types {
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tags := util.MustParseClientGenTags(append(t.SecondClosestCommentLines, t.CommentLines...))
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if !tags.GenerateClient || tags.NoVerbs || !tags.HasVerb("list") || !tags.HasVerb("watch") {
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continue
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}
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typesToGenerate = append(typesToGenerate, t)
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if _, ok := typesForGroupVersion[gv]; !ok {
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typesForGroupVersion[gv] = []*types.Type{}
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}
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typesForGroupVersion[gv] = append(typesForGroupVersion[gv], t)
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}
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if len(typesToGenerate) == 0 {
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continue
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}
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groupVersionsEntry, ok := targetGroupVersions[groupPackageName]
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if !ok {
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groupVersionsEntry = clientgentypes.GroupVersions{
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PackageName: groupPackageName,
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Group: gv.Group,
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}
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}
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groupVersionsEntry.Versions = append(groupVersionsEntry.Versions, clientgentypes.PackageVersion{Version: gv.Version, Package: gvPackage})
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targetGroupVersions[groupPackageName] = groupVersionsEntry
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orderer := namer.Orderer{Namer: namer.NewPrivateNamer(0)}
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typesToGenerate = orderer.OrderTypes(typesToGenerate)
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if internal {
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packageList = append(packageList, versionPackage(internalVersionPackagePath, groupPackageName, gv, groupGoNames[groupPackageName], boilerplate, typesToGenerate, customArgs.InternalClientSetPackage, customArgs.ListersPackage))
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} else {
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packageList = append(packageList, versionPackage(externalVersionPackagePath, groupPackageName, gv, groupGoNames[groupPackageName], boilerplate, typesToGenerate, customArgs.VersionedClientSetPackage, customArgs.ListersPackage))
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}
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}
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if len(externalGroupVersions) != 0 {
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packageList = append(packageList, factoryInterfacePackage(externalVersionPackagePath, boilerplate, customArgs.VersionedClientSetPackage))
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packageList = append(packageList, factoryPackage(externalVersionPackagePath, boilerplate, groupGoNames, genutil.PluralExceptionListToMapOrDie(customArgs.PluralExceptions), externalGroupVersions,
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customArgs.VersionedClientSetPackage,
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typesForGroupVersion))
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for _, gvs := range externalGroupVersions {
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packageList = append(packageList, groupPackage(externalVersionPackagePath, gvs, boilerplate))
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}
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}
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if len(internalGroupVersions) != 0 {
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packageList = append(packageList, factoryInterfacePackage(internalVersionPackagePath, boilerplate, customArgs.InternalClientSetPackage))
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packageList = append(packageList, factoryPackage(internalVersionPackagePath, boilerplate, groupGoNames, genutil.PluralExceptionListToMapOrDie(customArgs.PluralExceptions), internalGroupVersions, customArgs.InternalClientSetPackage, typesForGroupVersion))
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for _, gvs := range internalGroupVersions {
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packageList = append(packageList, groupPackage(internalVersionPackagePath, gvs, boilerplate))
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}
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}
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return packageList
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}
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func factoryPackage(basePackage string, boilerplate []byte, groupGoNames, pluralExceptions map[string]string, groupVersions map[string]clientgentypes.GroupVersions, clientSetPackage string,
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typesForGroupVersion map[clientgentypes.GroupVersion][]*types.Type) generator.Package {
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return &generator.DefaultPackage{
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PackageName: filepath.Base(basePackage),
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PackagePath: basePackage,
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HeaderText: boilerplate,
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GeneratorFunc: func(c *generator.Context) (generators []generator.Generator) {
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generators = append(generators, &factoryGenerator{
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DefaultGen: generator.DefaultGen{
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OptionalName: "factory",
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},
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outputPackage: basePackage,
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imports: generator.NewImportTracker(),
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groupVersions: groupVersions,
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clientSetPackage: clientSetPackage,
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internalInterfacesPackage: packageForInternalInterfaces(basePackage),
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gvGoNames: groupGoNames,
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})
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generators = append(generators, &genericGenerator{
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DefaultGen: generator.DefaultGen{
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OptionalName: "generic",
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},
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outputPackage: basePackage,
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imports: generator.NewImportTracker(),
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groupVersions: groupVersions,
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pluralExceptions: pluralExceptions,
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typesForGroupVersion: typesForGroupVersion,
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groupGoNames: groupGoNames,
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})
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return generators
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},
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}
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}
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func factoryInterfacePackage(basePackage string, boilerplate []byte, clientSetPackage string) generator.Package {
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packagePath := packageForInternalInterfaces(basePackage)
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return &generator.DefaultPackage{
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PackageName: filepath.Base(packagePath),
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PackagePath: packagePath,
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HeaderText: boilerplate,
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GeneratorFunc: func(c *generator.Context) (generators []generator.Generator) {
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generators = append(generators, &factoryInterfaceGenerator{
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DefaultGen: generator.DefaultGen{
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OptionalName: "factory_interfaces",
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},
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outputPackage: packagePath,
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imports: generator.NewImportTracker(),
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clientSetPackage: clientSetPackage,
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})
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return generators
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},
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}
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}
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func groupPackage(basePackage string, groupVersions clientgentypes.GroupVersions, boilerplate []byte) generator.Package {
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packagePath := filepath.Join(basePackage, groupVersions.PackageName)
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groupPkgName := strings.Split(string(groupVersions.PackageName), ".")[0]
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return &generator.DefaultPackage{
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PackageName: groupPkgName,
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PackagePath: packagePath,
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HeaderText: boilerplate,
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GeneratorFunc: func(c *generator.Context) (generators []generator.Generator) {
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generators = append(generators, &groupInterfaceGenerator{
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DefaultGen: generator.DefaultGen{
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OptionalName: "interface",
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},
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outputPackage: packagePath,
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groupVersions: groupVersions,
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imports: generator.NewImportTracker(),
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internalInterfacesPackage: packageForInternalInterfaces(basePackage),
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})
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return generators
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},
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FilterFunc: func(c *generator.Context, t *types.Type) bool {
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tags := util.MustParseClientGenTags(append(t.SecondClosestCommentLines, t.CommentLines...))
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return tags.GenerateClient && tags.HasVerb("list") && tags.HasVerb("watch")
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},
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}
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}
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func versionPackage(basePackage string, groupPkgName string, gv clientgentypes.GroupVersion, groupGoName string, boilerplate []byte, typesToGenerate []*types.Type, clientSetPackage, listersPackage string) generator.Package {
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packagePath := filepath.Join(basePackage, groupPkgName, strings.ToLower(gv.Version.NonEmpty()))
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return &generator.DefaultPackage{
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PackageName: strings.ToLower(gv.Version.NonEmpty()),
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PackagePath: packagePath,
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HeaderText: boilerplate,
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GeneratorFunc: func(c *generator.Context) (generators []generator.Generator) {
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generators = append(generators, &versionInterfaceGenerator{
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DefaultGen: generator.DefaultGen{
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OptionalName: "interface",
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},
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outputPackage: packagePath,
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imports: generator.NewImportTracker(),
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types: typesToGenerate,
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internalInterfacesPackage: packageForInternalInterfaces(basePackage),
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})
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for _, t := range typesToGenerate {
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generators = append(generators, &informerGenerator{
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DefaultGen: generator.DefaultGen{
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OptionalName: strings.ToLower(t.Name.Name),
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},
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outputPackage: packagePath,
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groupPkgName: groupPkgName,
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groupVersion: gv,
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groupGoName: groupGoName,
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typeToGenerate: t,
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imports: generator.NewImportTracker(),
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clientSetPackage: clientSetPackage,
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listersPackage: listersPackage,
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internalInterfacesPackage: packageForInternalInterfaces(basePackage),
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})
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}
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return generators
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},
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FilterFunc: func(c *generator.Context, t *types.Type) bool {
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tags := util.MustParseClientGenTags(append(t.SecondClosestCommentLines, t.CommentLines...))
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return tags.GenerateClient && tags.HasVerb("list") && tags.HasVerb("watch")
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},
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}
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}
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