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113 lines
3.0 KiB
Go
113 lines
3.0 KiB
Go
/*
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Copyright 2020 The Flux 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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"context"
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"strings"
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"github.com/fluxcd/flux2/v2/internal/utils"
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"github.com/spf13/cobra"
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"k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/client-go/dynamic"
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)
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var completionCmd = &cobra.Command{
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Use: "completion",
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Short: "Generates completion scripts for various shells",
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Long: `The completion sub-command generates completion scripts for various shells.`,
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}
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func init() {
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rootCmd.AddCommand(completionCmd)
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}
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func contextsCompletionFunc(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
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rawConfig, err := kubeconfigArgs.ToRawKubeConfigLoader().RawConfig()
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if err != nil {
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return completionError(err)
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}
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var comps []string
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for name := range rawConfig.Contexts {
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if strings.HasPrefix(name, toComplete) {
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comps = append(comps, name)
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}
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}
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return comps, cobra.ShellCompDirectiveNoFileComp
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}
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func resourceNamesCompletionFunc(gvk schema.GroupVersionKind) func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
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return func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
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ctx, cancel := context.WithTimeout(context.Background(), rootArgs.timeout)
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defer cancel()
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cfg, err := utils.KubeConfig(kubeconfigArgs, kubeclientOptions)
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if err != nil {
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return completionError(err)
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}
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mapper, err := kubeconfigArgs.ToRESTMapper()
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if err != nil {
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return completionError(err)
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}
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mapping, err := mapper.RESTMapping(gvk.GroupKind(), gvk.Version)
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if err != nil {
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return completionError(err)
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}
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client, err := dynamic.NewForConfig(cfg)
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if err != nil {
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return completionError(err)
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}
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var dr dynamic.ResourceInterface
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if mapping.Scope.Name() == meta.RESTScopeNameNamespace {
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dr = client.Resource(mapping.Resource).Namespace(*kubeconfigArgs.Namespace)
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} else {
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dr = client.Resource(mapping.Resource)
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}
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list, err := dr.List(ctx, metav1.ListOptions{})
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if err != nil {
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return completionError(err)
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}
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var comps []string
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for _, item := range list.Items {
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name := item.GetName()
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if strings.HasPrefix(name, toComplete) {
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comps = append(comps, name)
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}
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}
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return comps, cobra.ShellCompDirectiveNoFileComp
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}
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}
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func completionError(err error) ([]string, cobra.ShellCompDirective) {
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cobra.CompError(err.Error())
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return nil, cobra.ShellCompDirectiveError
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}
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