mirror of
https://github.com/vmware-tanzu/velero.git
synced 2026-01-07 05:46:37 +00:00
101 lines
2.8 KiB
Go
101 lines
2.8 KiB
Go
/*
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Copyright 2021 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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package completion
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import (
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"fmt"
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"os"
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"github.com/spf13/cobra"
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)
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func NewCommand() *cobra.Command {
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c := &cobra.Command{
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Use: "completion [bash|zsh|fish]",
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Short: "Generate completion script",
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Long: `To load completions:
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Bash:
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$ source <(velero completion bash)
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# To load completions for each session, execute once:
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Linux:
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$ velero completion bash > /etc/bash_completion.d/velero
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MacOS:
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$ velero completion bash > /usr/local/etc/bash_completion.d/velero
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Zsh:
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# If shell completion is not already enabled in your environment you will need
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# to enable it. You can execute the following once:
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$ echo "autoload -U compinit; compinit" >> ~/.zshrc
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# To load completions for each session, execute once:
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$ velero completion zsh > "${fpath[1]}/_velero"
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# You will need to start a new shell for this setup to take effect.
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Fish:
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$ velero completion fish | source
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# To load completions for each session, execute once:
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$ velero completion fish > ~/.config/fish/completions/velero.fish
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`,
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Args: cobra.ExactArgs(1),
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ValidArgs: []string{"bash", "zsh", "fish"},
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Run: func(cmd *cobra.Command, args []string) {
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shell := args[0]
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switch shell {
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case "bash":
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if err := cmd.Root().GenBashCompletion(os.Stdout); err != nil {
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fmt.Println("fail to generate bash completion script", err)
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os.Exit(1)
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}
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case "zsh":
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// # fix #4912
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// cobra does not support zsh completion ouptput used by source command
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// according to https://github.com/spf13/cobra/issues/1529
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// Need to append compdef manually to do that.
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zshHead := "#compdef velero\ncompdef _velero velero\n"
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out := os.Stdout
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if _, err := out.Write([]byte(zshHead)); err != nil {
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fmt.Println("fail to append compdef command into zsh completion script: ", err)
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os.Exit(1)
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}
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if err := cmd.Root().GenZshCompletion(out); err != nil {
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fmt.Println("fail to generate zsh completion script: ", err)
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os.Exit(1)
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}
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case "fish":
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if err := cmd.Root().GenFishCompletion(os.Stdout, true); err != nil {
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fmt.Println("fail to generate fish completion script: ", err)
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os.Exit(1)
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}
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default:
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fmt.Println("Invalid shell specified, specify bash, zsh, or fish")
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os.Exit(1)
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}
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},
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}
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return c
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}
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