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|
package completion
import (
"fmt"
"io"
"os"
"strings"
commonComp "github.com/containers/common/pkg/completion"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/pkg/domain/entities"
"github.com/spf13/cobra"
)
const (
completionDescription = `Generate shell autocompletions.
Valid arguments are bash, zsh, and fish.
Please refer to the man page to see how you can load these completions.`
)
var (
file string
noDesc bool
shells = []string{"bash", "zsh", "fish"}
completionCmd = &cobra.Command{
Use: fmt.Sprintf("completion [options] {%s}", strings.Join(shells, "|")),
Short: "Generate shell autocompletions",
Long: completionDescription,
ValidArgs: shells,
Args: cobra.ExactValidArgs(1),
RunE: completion,
Example: `podman completion bash
podman completion zsh -f _podman
podman completion fish --no-desc`,
//don't show this command to users
Hidden: true,
}
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: completionCmd,
})
flags := completionCmd.Flags()
fileFlagName := "file"
flags.StringVarP(&file, fileFlagName, "f", "", "Output the completion to file rather than stdout.")
_ = completionCmd.RegisterFlagCompletionFunc(fileFlagName, commonComp.AutocompleteDefault)
flags.BoolVar(&noDesc, "no-desc", false, "Don't include descriptions in the completion output.")
}
func completion(cmd *cobra.Command, args []string) error {
var w io.Writer
if file != "" {
file, err := os.Create(file)
if err != nil {
return err
}
defer file.Close()
w = file
} else {
w = os.Stdout
}
var err error
switch args[0] {
case "bash":
err = cmd.Root().GenBashCompletion(w)
case "zsh":
if noDesc {
err = cmd.Root().GenZshCompletionNoDesc(w)
} else {
err = cmd.Root().GenZshCompletion(w)
}
case "fish":
err = cmd.Root().GenFishCompletion(w, !noDesc)
}
if err != nil {
return err
}
_, err = io.WriteString(w, fmt.Sprintf(
"\n# This file is generated with %q; see: podman-completion(1)\n", cmd.CommandPath(),
))
return err
}
|
