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 #
   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 __get_machines() {
  28         local a b
  29         machinectl list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
  30 }
  31
  32 _systemd_cgtop() {
  33         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  34         local comps
  35
  36         local -A OPTS=(
  37                [STANDALONE]='-h --help --version -p -t -c -m -i -b --batch -r --raw -k -P'
  38                [ARG]='--cpu --depth -M --machine --recursive -n --iterations -d --delay --order'
  39                )
  40
  41         _init_completion || return
  42
  43         if __contains_word "$prev" ${OPTS[ARG]}; then
  44                 case $prev in
  45                         --machine|-M)
  46                                 comps=$( __get_machines )
  47                         ;;
  48                         --recursive)
  49                                 comps='yes no'
  50                         ;;
  51                         --order)
  52                                 comps='path tasks cpu memory io'
  53                         ;;
  54                 esac
  55                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  56                 return 0
  57         fi
  58
  59         COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  60 }
  61
  62 complete -F _systemd_cgtop systemd-cgtop