shell-completion/bash/bootctl

   1 # bootctl(1) completion                               -*- shell-script -*-
   2 # SPDX-License-Identifier: LGPL-2.1+
   3 #
   4 # This file is part of systemd.
   5 #
   6 #
   7 # systemd is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU Lesser General Public License as published by
   9 # the Free Software Foundation; either version 2.1 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # systemd is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15 # General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU Lesser General Public License
  18 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
  19
  20 __contains_word () {
  21         local w word=$1; shift
  22         for w in "$@"; do
  23                 [[ $w = "$word" ]] && return
  24         done
  25 }
  26
  27 _bootctl() {
  28         local i verb comps
  29         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  30         local -A OPTS=(
  31                 [STANDALONE]='-h --help --no-variables -p --print-path --version'
  32                        [ARG]='--path'
  33         )
  34
  35         if [[ "$cur" = -* ]]; then
  36                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  37                 return 0
  38         fi
  39
  40         local -A VERBS=(
  41                 [STANDALONE]='help install list remove status update'
  42         )
  43
  44         for ((i=0; i < COMP_CWORD; i++)); do
  45                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]}; then
  46                         verb=${COMP_WORDS[i]}
  47                         break
  48                 fi
  49         done
  50
  51         if [[ -z $verb ]]; then
  52                 comps=${VERBS[*]}
  53         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
  54                 comps=''
  55         fi
  56
  57         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  58         return 0
  59 }
  60
  61 complete -F _bootctl bootctl