mirror of https://github.com/helm/helm
Signed-off-by: Yugo Kobayashi <kobdotsh@gmail.com>pull/32470/head
Yugo Kobayashi
1 month ago
parent
87dfbebdf5
commit
1d294b981d
@ -0,0 +1,125 @@
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/*
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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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package main
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import (
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"bytes"
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"flag"
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"fmt"
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"go/format"
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"os"
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"slices"
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apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
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apiextensionsv1beta1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1beta1"
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"k8s.io/apimachinery/pkg/runtime"
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clientgoscheme "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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output := flag.String("output", "default_versions.go", "path to the generated Go file")
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flag.Parse()
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versions, err := knownVersions()
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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var source bytes.Buffer
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fmt.Fprintln(&source, licenseHeader)
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fmt.Fprintln(&source)
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fmt.Fprintln(&source, "// Code generated by gendefaultversions; DO NOT EDIT.")
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fmt.Fprintln(&source)
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fmt.Fprintln(&source, "package common")
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fmt.Fprintln(&source)
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fmt.Fprintln(&source, "// DefaultVersionSet is the default set of Kubernetes API versions used")
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fmt.Fprintln(&source, "// when Helm renders without live cluster discovery.")
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fmt.Fprintln(&source, "//")
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fmt.Fprintln(&source, "// This is a snapshot of the API versions registered by Helm's Kubernetes")
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fmt.Fprintln(&source, "// dependencies, not a list of APIs served by every supported cluster. Live")
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fmt.Fprintln(&source, "// cluster operations build Capabilities from server discovery instead.")
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fmt.Fprintln(&source, "//")
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fmt.Fprintln(&source, "// Review API additions and removals against the Kubernetes versions supported")
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fmt.Fprintln(&source, "// by this Helm release before committing a regenerated snapshot.")
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fmt.Fprintln(&source, "//")
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fmt.Fprintln(&source, "// Regenerate after updating Kubernetes dependencies with:")
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fmt.Fprintln(&source, "//")
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fmt.Fprintln(&source, "//\tgo generate ./pkg/chart/common")
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fmt.Fprintln(&source, "var DefaultVersionSet = VersionSet{")
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for _, version := range versions {
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fmt.Fprintf(&source, "\t%q,\n", version)
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}
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fmt.Fprintln(&source, "}")
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formatted, err := format.Source(source.Bytes())
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if err != nil {
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fmt.Fprintf(os.Stderr, "format generated source: %v\n", err)
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os.Exit(1)
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}
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if err := os.WriteFile(*output, formatted, 0o644); err != nil {
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fmt.Fprintf(os.Stderr, "write generated source: %v\n", err)
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os.Exit(1)
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}
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}
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func knownVersions() ([]string, error) {
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scheme := runtime.NewScheme()
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if err := clientgoscheme.AddToScheme(scheme); err != nil {
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return nil, fmt.Errorf("register client-go scheme: %w", err)
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}
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if err := apiextensionsv1beta1.AddToScheme(scheme); err != nil {
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return nil, fmt.Errorf("register apiextensions v1beta1 scheme: %w", err)
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}
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if err := apiextensionsv1.AddToScheme(scheme); err != nil {
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return nil, fmt.Errorf("register apiextensions v1 scheme: %w", err)
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}
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groupSet := make(map[string]struct{})
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for _, groupVersion := range scheme.PrioritizedVersionsAllGroups() {
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groupSet[groupVersion.Group] = struct{}{}
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}
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groups := make([]string, 0, len(groupSet))
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for group := range groupSet {
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groups = append(groups, group)
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}
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slices.Sort(groups)
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versions := make([]string, 0)
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for _, group := range groups {
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for _, groupVersion := range scheme.PrioritizedVersionsForGroup(group) {
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versions = append(versions, groupVersion.String())
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}
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}
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return versions, nil
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}
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