shell-completion/bash/systemd-cgtop

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