135 lines
2.7 KiB
Go
135 lines
2.7 KiB
Go
/*
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Copyright the Velero contributors.
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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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// This code embeds the CRD manifests in ../bases in ../crds/crds.go
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package main
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import (
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"bytes"
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"compress/gzip"
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"fmt"
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"io"
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"log"
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"os"
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"text/template"
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)
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// This is relative to config/crd/crds
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const goHeaderFile = "../../../../hack/boilerplate.go.txt"
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const tpl = `{{.GoHeader}}
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// Code generated by crds_generate.go; DO NOT EDIT.
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package crds
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import (
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"bytes"
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"compress/gzip"
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"io"
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apiextinstall "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/install"
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apiextv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
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"k8s.io/client-go/kubernetes/scheme"
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)
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var rawCRDs = [][]byte{
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{{- range .RawCRDs }}
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[]byte({{ . }}),
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{{- end }}
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}
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var CRDs = crds()
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func crds() []*apiextv1.CustomResourceDefinition {
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apiextinstall.Install(scheme.Scheme)
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decode := scheme.Codecs.UniversalDeserializer().Decode
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var objs []*apiextv1.CustomResourceDefinition
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for _, crd := range rawCRDs {
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gzr, err := gzip.NewReader(bytes.NewReader(crd))
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if err != nil {
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panic(err)
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}
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bytes, err := io.ReadAll(gzr)
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if err != nil {
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panic(err)
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}
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gzr.Close()
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obj, _, err := decode(bytes, nil, nil)
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if err != nil {
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panic(err)
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}
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objs = append(objs, obj.(*apiextv1.CustomResourceDefinition))
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}
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return objs
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}
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`
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type templateData struct {
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GoHeader string
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RawCRDs []string
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}
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func main() {
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headerBytes, err := os.ReadFile(goHeaderFile)
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if err != nil {
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log.Fatalln(err)
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}
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data := templateData{
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GoHeader: string(headerBytes),
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}
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// This is relative to config/crd/crds
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manifests, err := os.ReadDir("../bases")
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if err != nil {
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log.Fatalln(err)
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}
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for _, crd := range manifests {
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file, err := os.Open("../bases/" + crd.Name())
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if err != nil {
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log.Fatalln(err)
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}
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// gzip compress manifest
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var buf bytes.Buffer
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gzw := gzip.NewWriter(&buf)
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if _, err := io.Copy(gzw, file); err != nil {
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log.Fatalln(err)
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}
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file.Close()
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gzw.Close()
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data.RawCRDs = append(data.RawCRDs, fmt.Sprintf("%q", buf.Bytes()))
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}
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t, err := template.New("crd").Parse(tpl)
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if err != nil {
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log.Fatalln(err)
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}
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out, err := os.Create("crds.go")
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if err != nil {
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log.Fatalln(err)
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}
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if err := t.Execute(out, data); err != nil {
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log.Fatalln(err)
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}
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}
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