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feat(cmd): shell completion subcommand (#576)
Co-authored-by: Sumire (菫) <151038614+sumire88@users.noreply.github.com>
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59
cmd/completion.go
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59
cmd/completion.go
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@ -0,0 +1,59 @@
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/*
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* SPDX-License-Identifier: AGPL-3.0-only
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* Copyright (c) 2022-2024, daeuniverse Organization <dae@v2raya.org>
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*/
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package cmd
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import (
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"bytes"
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"errors"
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"fmt"
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"github.com/spf13/cobra"
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)
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var (
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completionCmd = &cobra.Command{
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Use: "completion [bash|zsh|fish]",
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Short: "Output shell completion code for the specified shell (bash, zsh or fish)",
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Long: "Output shell completion code for the specified shell (bash, zsh or fish).",
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Args: cobra.ExactArgs(1),
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ValidArgs: []string{"bash", "zsh", "fish"},
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Hidden: true,
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RunE: func(cmd *cobra.Command, args []string) error {
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out, err := getCompletion(args[0], cmd.Parent())
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if err != nil {
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return err
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}
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fmt.Print(out)
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return nil
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},
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}
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)
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// return the auto completion shell script, if supported
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func getCompletion(sh string, parent *cobra.Command) (string, error) {
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var err error
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var buf bytes.Buffer
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switch sh {
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case "bash":
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err = parent.GenBashCompletion(&buf)
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case "zsh":
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err = parent.GenZshCompletion(&buf)
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case "fish":
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err = parent.GenFishCompletion(&buf, true)
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default:
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err = errors.New("unsupported shell type (must be bash, zsh or fish): " + sh)
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}
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if err != nil {
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return "", err
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}
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return buf.String(), nil
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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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@ -55,7 +55,7 @@ var (
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)
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func init() {
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runCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "", "Config file of dae.")
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runCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "", "Config file of dae.(required)")
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runCmd.PersistentFlags().StringVar(&logFile, "logfile", "", "Log file to write. Empty means writing to stdout and stderr.")
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runCmd.PersistentFlags().IntVar(&logFileMaxSize, "logfile-maxsize", 30, "Unit: MB. The maximum size in megabytes of the log file before it gets rotated.")
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runCmd.PersistentFlags().IntVar(&logFileMaxBackups, "logfile-maxbackups", 3, "The maximum number of old log files to retain.")
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