forked from hswaw/hscloud
76 lines
1.7 KiB
Go
76 lines
1.7 KiB
Go
// Copyright 2018 The kubecfg authors
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//
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package cmd
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import (
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"unicode"
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"github.com/spf13/cobra"
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)
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const (
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flagShell = "shell"
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)
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func guessShell(path string) string {
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ret := filepath.Base(path)
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ret = strings.TrimRightFunc(ret, unicode.IsNumber)
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return ret
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}
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func init() {
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RootCmd.AddCommand(completionCmd)
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completionCmd.PersistentFlags().String(flagShell, "", "Shell variant for which to generate completions. Supported values are bash,zsh")
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}
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var completionCmd = &cobra.Command{
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Use: "completion",
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Short: "Generate shell completions for kubecfg",
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Args: cobra.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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flags := cmd.Flags()
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shell, err := flags.GetString(flagShell)
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if err != nil {
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return err
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}
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if shell == "" {
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shell = guessShell(os.Getenv("SHELL"))
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}
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out := cmd.OutOrStdout()
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switch shell {
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case "bash":
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if err := RootCmd.GenBashCompletion(out); err != nil {
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return err
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}
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case "zsh":
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if err := RootCmd.GenZshCompletion(out); err != nil {
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return err
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}
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default:
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return fmt.Errorf("Unknown shell %q, try --%s", shell, flagShell)
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}
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return nil
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},
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}
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