68 lines
2.0 KiB
Go
68 lines
2.0 KiB
Go
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/*
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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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"io"
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"os"
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"path/filepath"
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"strings"
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"k8s.io/gengo/generator"
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"k8s.io/gengo/types"
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"k8s.io/code-generator/cmd/client-gen/generators/util"
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)
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// expansionGenerator produces a file for a expansion interfaces.
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type expansionGenerator struct {
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generator.DefaultGen
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packagePath string
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types []*types.Type
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}
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// We only want to call GenerateType() once per group.
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func (g *expansionGenerator) Filter(c *generator.Context, t *types.Type) bool {
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return t == g.types[0]
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}
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func (g *expansionGenerator) GenerateType(c *generator.Context, t *types.Type, w io.Writer) error {
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sw := generator.NewSnippetWriter(w, c, "$", "$")
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for _, t := range g.types {
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tags := util.MustParseClientGenTags(append(t.SecondClosestCommentLines, t.CommentLines...))
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if _, err := os.Stat(filepath.Join(g.packagePath, strings.ToLower(t.Name.Name+"_expansion.go"))); os.IsNotExist(err) {
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sw.Do(expansionInterfaceTemplate, t)
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if !tags.NonNamespaced {
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sw.Do(namespacedExpansionInterfaceTemplate, t)
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}
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}
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}
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return sw.Error()
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}
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var expansionInterfaceTemplate = `
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// $.|public$ListerExpansion allows custom methods to be added to
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// $.|public$Lister.
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type $.|public$ListerExpansion interface {}
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`
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var namespacedExpansionInterfaceTemplate = `
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// $.|public$NamespaceListerExpansion allows custom methods to be added to
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// $.|public$NamespaceLister.
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type $.|public$NamespaceListerExpansion interface {}
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`
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