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107 lines
2.7 KiB
Go
107 lines
2.7 KiB
Go
/*
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Copyright The Helm 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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// Generates the default versions to use with capabilities. This cannot be loaded
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// dynamically as it uses enough memory to cause out of memory issues in CI.
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//
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// +build ignore
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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/ioutil"
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"os"
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"path"
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"sort"
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"k8s.io/client-go/kubernetes/scheme"
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)
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const licenseHeader = `/*
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Copyright The Helm 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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func main() {
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v := getVersions()
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o := createOutput(v)
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err := ioutil.WriteFile("capabilities_versions_generated.go", o, 0644)
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if err != nil {
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fmt.Printf("writing output: %s", err)
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os.Exit(1)
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}
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}
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func createOutput(v []string) []byte {
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var out bytes.Buffer
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fmt.Fprintln(&out, licenseHeader)
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fmt.Fprint(&out, "// Code generated by capabilities_default_versions_generate.go; DO NOT EDIT.\n\n")
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fmt.Fprint(&out, "package chartutil\n\n")
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fmt.Fprintln(&out, "func defaultVersions() []string {")
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fmt.Fprintln(&out, "\treturn []string{")
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for _, v := range v {
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fmt.Fprintf(&out, "\t\t\"%s\",\n", v)
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}
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fmt.Fprintln(&out, "\t}")
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fmt.Fprintln(&out, "}")
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return out.Bytes()
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}
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func getVersions() []string {
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var s []string
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var gv string
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var gvk string
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// Check is used so that we only add an item once to the return
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check := make(map[string]struct{})
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// Client go has a default scheme set with everything in it
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// This includes over 500 group versions and group versioned kinds
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for k := range scheme.Scheme.AllKnownTypes() {
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gv = path.Join(k.Group, k.Version)
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gvk = path.Join(k.Group, k.Version, k.Kind)
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if _, ok := check[gv]; !ok {
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check[gv] = struct{}{}
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s = append(s, gv)
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}
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if _, ok := check[gvk]; !ok {
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check[gvk] = struct{}{}
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s = append(s, gvk)
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}
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}
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// Put the names in a consistent order
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sort.Strings(s)
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return s
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}
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