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systemd/shell-completion/bash/busctl

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# busctl(1) completion -*- shell-script -*-
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#
# This file is part of systemd.
#
# Copyright 2013 Zbigniew Jędrzejewski-Szmek
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# Copyright 2014 Thomas H.P. Andersen
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#
# 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 <http://www.gnu.org/licenses/>.
__contains_word () {
local w word=$1; shift
for w in "$@"; do
[[ $w = "$word" ]] && return
done
}
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__get_machines() {
local a b
machinectl list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
}
__get_endpoints() {
local a b
busctl list --no-pager | { while read a b; do echo " $a"; done; };
}
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_busctl() {
local i verb comps
local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
local -A OPTS=(
[STANDALONE]='-h --help --version --no-pager --system --user
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--show-machine --unique --acquired --activatable'
[ARG]='-H --host -M --machine --address --match'
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)
if __contains_word "$prev" ${OPTS[ARG]}; then
case $prev in
--host|-H)
comps=$(compgen -A hostname)
;;
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--machine|-M)
comps=$( __get_machines )
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esac
COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
return 0
fi
if [[ "$cur" = -* ]]; then
COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
return 0
fi
local -A VERBS=(
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[STANDALONE]='list help'
[ENDPOINT]='monitor status'
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)
for ((i=0; i < COMP_CWORD; i++)); do
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if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
verb=${COMP_WORDS[i]}
break
fi
done
if [[ -z $verb ]]; then
comps=${VERBS[*]}
elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
comps=''
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elif __contains_word "$verb" ${VERBS[ENDPOINT]}; then
comps=$( __get_endpoints )
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fi
COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
return 0
}
complete -F _busctl busctl