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systemd/shell-completion/bash/busctl

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# busctl(1) completion -*- shell-script -*-
#
# This file is part of systemd.
#
# Copyright 2013 Zbigniew Jędrzejewski-Szmek
# Copyright 2014 Thomas H.P. Andersen
#
# 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
}
__get_machines() {
local a b
machinectl list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
}
__get_busnames() {
local mode=$1
local a b
busctl $mode list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
}
__get_objects() {
local mode=$1
local busname=$2
local a b
busctl $mode tree --list --no-legend --no-pager $busname | { while read a b; do echo " $a"; done; };
}
__get_interfaces() {
local mode=$1
local busname=$2
local path=$3
local a b
busctl $mode introspect --list --no-legend --no-pager $busname $path | { while read a b c; do [[ "$b" == "interface" ]] && echo " $a"; done; };
}
__get_members() {
local mode=$1
local busname=$2
local path=$3
local interface=$4
local type=$5
local a b
busctl $mode introspect --list --no-legend --no-pager $busname $path $interface | sed -e 's/^\.//' | { while read a b c; do [[ "$b" == "$type" ]] && echo " $a"; done; };
}
__get_signature() {
local mode=$1
local busname=$2
local path=$3
local interface=$4
local member=$5
local a b
busctl $mode introspect --list --no-legend --no-pager $busname $path $interface | sed -e 's/^\.//' | { while read a b c d; do [[ "$a" == "$member" ]] && echo " \"$c\""; done; };
}
_busctl() {
local i verb comps mode
local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
local -A OPTS=(
[STANDALONE]='-h --help --version --no-pager --no-legend --system --user
--show-machine --unique --acquired --activatable --list
--quiet --verbose --expect-reply=no --auto-start=no
--allow-interactive-authorization=yes --augment-creds=no'
[ARG]='-H --host -M --machine --address --match --timeout'
)
if __contains_word "--user" ${COMP_WORDS[*]}; then
mode=--user
else
mode=--system
fi
if __contains_word "$prev" ${OPTS[ARG]}; then
case $prev in
--host|-H)
comps=$(compgen -A hostname)
;;
--machine|-M)
comps=$( __get_machines )
esac
COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
return 0
fi
if [[ "$cur" = -* ]]; then
COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
return 0
fi
local -A VERBS=(
[STANDALONE]='list help'
[BUSNAME]='status monitor capture tree'
[OBJECT]='introspect'
[METHOD]='call'
[PROPERTY_GET]='get-property'
[PROPERTY_SET]='set-property'
)
for ((i=0; i < COMP_CWORD; i++)); do
if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
verb=${COMP_WORDS[i]}
break
fi
done
n=$(($COMP_CWORD - $i))
if [[ -z $verb ]]; then
comps=${VERBS[*]}
elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
comps=''
elif __contains_word "$verb" ${VERBS[BUSNAME]}; then
comps=$( __get_busnames $mode)
elif __contains_word "$verb" ${VERBS[OBJECT]}; then
if [[ $n -eq 1 ]] ; then
comps=$( __get_busnames $mode)
elif [[ $n -eq 2 ]] ; then
comps=$( __get_objects $mode ${COMP_WORDS[COMP_CWORD-1]})
elif [[ $n -eq 3 ]] ; then
comps=$( __get_interfaces $mode ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
else
comps=''
fi
elif __contains_word "$verb" ${VERBS[METHOD]}; then
if [[ $n -eq 1 ]] ; then
comps=$( __get_busnames $mode)
elif [[ $n -eq 2 ]] ; then
comps=$( __get_objects $mode ${COMP_WORDS[COMP_CWORD-1]})
elif [[ $n -eq 3 ]] ; then
comps=$( __get_interfaces $mode ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
elif [[ $n -eq 4 ]] ; then
comps=$( __get_members $mode ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]} method)
elif [[ $n -eq 5 ]] ; then
comps=$( __get_signature $mode ${COMP_WORDS[COMP_CWORD-4]} ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
else
comps=''
fi
elif __contains_word "$verb" ${VERBS[PROPERTY_GET]}; then
if [[ $n -eq 1 ]] ; then
comps=$( __get_busnames $mode)
elif [[ $n -eq 2 ]] ; then
comps=$( __get_objects $mode ${COMP_WORDS[COMP_CWORD-1]})
elif [[ $n -eq 3 ]] ; then
comps=$( __get_interfaces $mode ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
elif [[ $n -eq 4 ]] ; then
comps=$( __get_members $mode ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]} property)
else
comps=''
fi
elif __contains_word "$verb" ${VERBS[PROPERTY_SET]}; then
if [[ $n -eq 1 ]] ; then
comps=$( __get_busnames $mode)
elif [[ $n -eq 2 ]] ; then
comps=$( __get_objects $mode ${COMP_WORDS[COMP_CWORD-1]})
elif [[ $n -eq 3 ]] ; then
comps=$( __get_interfaces $mode ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
elif [[ $n -eq 4 ]] ; then
comps=$( __get_members $mode ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]} property)
elif [[ $n -eq 5 ]] ; then
comps=$( __get_signature $mode ${COMP_WORDS[COMP_CWORD-4]} ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
else
comps=''
fi
fi
COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
return 0
}
complete -F _busctl busctl
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