mirror of
https://github.com/k3s-io/k3s.git
synced 2024-06-07 19:41:36 +00:00
104 lines
2.4 KiB
Go
104 lines
2.4 KiB
Go
package completion
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import (
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"fmt"
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"os"
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"github.com/k3s-io/k3s/pkg/version"
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"github.com/urfave/cli"
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)
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func Run(ctx *cli.Context) error {
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if ctx.NArg() < 1 {
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return fmt.Errorf("must provide a valid SHELL argument")
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}
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shell := ctx.Args()[0]
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completetionScript, err := genCompletionScript(shell)
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if err != nil {
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return err
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}
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if ctx.Bool("i") {
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return writeToRC(shell)
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}
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fmt.Println(completetionScript)
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return nil
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}
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func genCompletionScript(shell string) (string, error) {
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var completionScript string
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if shell == "bash" {
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completionScript = fmt.Sprintf(`#! /bin/bash
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_cli_bash_autocomplete() {
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if [[ "${COMP_WORDS[0]}" != "source" ]]; then
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local cur opts base
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COMPREPLY=()
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cur="${COMP_WORDS[COMP_CWORD]}"
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if [[ "$cur" == "-"* ]]; then
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opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} ${cur} --generate-bash-completion )
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else
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opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} --generate-bash-completion )
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fi
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COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
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return 0
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fi
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}
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complete -o bashdefault -o default -o nospace -F _cli_bash_autocomplete %s
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`, version.Program)
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} else if shell == "zsh" {
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completionScript = fmt.Sprintf(`#compdef %[1]s
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_cli_zsh_autocomplete() {
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local -a opts
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local cur
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cur=${words[-1]}
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if [[ "$cur" == "-"* ]]; then
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opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} ${cur} --generate-bash-completion)}")
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else
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opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} --generate-bash-completion)}")
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fi
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if [[ "${opts[1]}" != "" ]]; then
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_describe 'values' opts
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else
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_files
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fi
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return
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}
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compdef _cli_zsh_autocomplete %[1]s`, version.Program)
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} else {
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return "", fmt.Errorf("unknown shell: %s", shell)
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}
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return completionScript, nil
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}
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func writeToRC(shell string) error {
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rcFileName := ""
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if shell == "bash" {
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rcFileName = "/.bashrc"
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} else if shell == "zsh" {
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rcFileName = "/.zshrc"
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}
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home, err := os.UserHomeDir()
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if err != nil {
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return nil
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}
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rcFileName = home + rcFileName
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f, err := os.OpenFile(rcFileName, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
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if err != nil {
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return err
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}
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defer f.Close()
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bashEntry := fmt.Sprintf("# >> %[1]s command completion (start)\n. <(%[1]s completion %s)\n# >> %[1]s command completion (end)", version.Program, shell)
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if _, err := f.WriteString(bashEntry); err != nil {
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return err
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}
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fmt.Printf("Autocomplete for %s added to: %s\n", shell, rcFileName)
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return nil
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}
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