systemd/shell-completion/bash/systemd-cgtop

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# shellcheck shell=bash
# systemd-cgtop(1) completion -*- shell-script -*-
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# systemd is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with systemd; If not, see <https://www.gnu.org/licenses/>.
__contains_word() {
local w word=$1; shift
for w in "$@"; do
[[ $w = "$word" ]] && return
done
}
__get_machines() {
local a b
{ machinectl list --full --max-addresses=0 --no-legend --no-pager 2>/dev/null; echo ".host"; } | \
{ while read a b; do echo " $a"; done; } | \
sort -u
}
_systemd_cgtop() {
local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]} words cword
local comps
local -A OPTS=(
[STANDALONE]='-h --help --version -p -t -c -m -i -b --batch -r --raw -k -P'
[ARG]='--cpu --depth -M --machine --recursive -n --iterations -d --delay --order'
)
_init_completion || return
if __contains_word "$prev" ${OPTS[ARG]}; then
case $prev in
--machine|-M)
comps=$( __get_machines )
;;
--recursive)
comps='yes no'
;;
--order)
comps='path tasks cpu memory io'
;;
esac
COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
return 0
fi
COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
if [ -d /sys/fs/cgroup/systemd/ ]; then
COMPREPLY+=( $(cd /sys/fs/cgroup/systemd/ && compgen -o nospace -o dirnames "$cur") )
elif [ -d /sys/fs/cgroup/ ]; then
COMPREPLY+=( $(cd /sys/fs/cgroup/ && compgen -o nospace -o dirnames "$cur") )
fi
}
complete -F _systemd_cgtop systemd-cgtop