mirror of https://github.com/knative/pkg.git
98 lines
3.0 KiB
Go
98 lines
3.0 KiB
Go
/*
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Copyright 2019 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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"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"
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)
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// fakeFactoryGenerator produces a file of listers for a given GroupVersion and
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// type.
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type fakeFactoryGenerator struct {
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generator.DefaultGen
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outputPackage string
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imports namer.ImportTracker
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filtered bool
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factoryInjectionPkg string
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fakeClientInjectionPkg string
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sharedInformerFactoryPackage string
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}
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var _ generator.Generator = (*fakeFactoryGenerator)(nil)
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func (g *fakeFactoryGenerator) Filter(c *generator.Context, t *types.Type) bool {
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// We generate a single factory, so return true once.
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if !g.filtered {
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g.filtered = true
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return true
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}
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return false
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}
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func (g *fakeFactoryGenerator) Namers(c *generator.Context) namer.NameSystems {
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return namer.NameSystems{
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"raw": namer.NewRawNamer(g.outputPackage, g.imports),
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}
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}
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func (g *fakeFactoryGenerator) Imports(c *generator.Context) (imports []string) {
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imports = append(imports, g.imports.ImportLines()...)
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return
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}
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func (g *fakeFactoryGenerator) GenerateType(c *generator.Context, t *types.Type, w io.Writer) error {
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sw := generator.NewSnippetWriter(w, c, "{{", "}}")
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klog.V(5).Infof("processing type %v", t)
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m := map[string]interface{}{
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"factoryKey": c.Universe.Type(types.Name{Package: g.factoryInjectionPkg, Name: "Key"}),
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"factoryGet": c.Universe.Function(types.Name{Package: g.factoryInjectionPkg, Name: "Get"}),
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"clientGet": c.Universe.Function(types.Name{Package: g.fakeClientInjectionPkg, Name: "Get"}),
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"informersNewSharedInformerFactory": c.Universe.Function(types.Name{Package: g.sharedInformerFactoryPackage, Name: "NewSharedInformerFactory"}),
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"injectionRegisterInformerFactory": c.Universe.Function(types.Name{
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Package: "knative.dev/pkg/injection",
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Name: "Fake.RegisterInformerFactory",
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}),
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"controllerGetResyncPeriod": c.Universe.Type(types.Name{Package: "knative.dev/pkg/controller", Name: "GetResyncPeriod"}),
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}
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sw.Do(injectionFakeInformerFactory, m)
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return sw.Error()
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}
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var injectionFakeInformerFactory = `
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var Get = {{.factoryGet|raw}}
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func init() {
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{{.injectionRegisterInformerFactory|raw}}(withInformerFactory)
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}
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func withInformerFactory(ctx context.Context) context.Context {
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c := {{.clientGet|raw}}(ctx)
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return context.WithValue(ctx, {{.factoryKey|raw}}{},
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{{.informersNewSharedInformerFactory|raw}}(c, {{.controllerGetResyncPeriod|raw}}(ctx)))
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}
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`
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