shell-completion/bash/busctl

   1 # busctl(1) completion                               -*- shell-script -*-
   2 # SPDX-License-Identifier: LGPL-2.1+
   3 #
   4 # This file is part of systemd.
   5 #
   6 # Copyright 2013 Zbigniew Jędrzejewski-Szmek
   7 # Copyright 2014 Thomas H.P. Andersen
   8 #
   9 # systemd is free software; you can redistribute it and/or modify it
  10 # under the terms of the GNU Lesser General Public License as published by
  11 # the Free Software Foundation; either version 2.1 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # systemd is distributed in the hope that it will be useful, but
  15 # WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17 # General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU Lesser General Public License
  20 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21
  22 __contains_word () {
  23         local w word=$1; shift
  24         for w in "$@"; do
  25                 [[ $w = "$word" ]] && return
  26         done
  27 }
  28
  29 __get_machines() {
  30         local a b
  31         machinectl list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
  32 }
  33
  34 __get_busnames() {
  35         local mode=$1
  36         local a b
  37         busctl $mode list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
  38 }
  39
  40 __get_objects() {
  41         local mode=$1
  42         local busname=$2
  43         local a b
  44         busctl $mode tree --list --no-legend --no-pager $busname | { while read a b; do echo " $a"; done; };
  45 }
  46
  47 __get_interfaces() {
  48         local mode=$1
  49         local busname=$2
  50         local path=$3
  51         local a b
  52         busctl $mode introspect --list --no-legend --no-pager $busname $path | { while read a b c; do [[ "$b" == "interface" ]] && echo " $a"; done; };
  53 }
  54
  55 __get_members() {
  56         local mode=$1
  57         local busname=$2
  58         local path=$3
  59         local interface=$4
  60         local type=$5
  61         local a b
  62         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; };
  63 }
  64
  65 __get_signature() {
  66         local mode=$1
  67         local busname=$2
  68         local path=$3
  69         local interface=$4
  70         local member=$5
  71         local a b
  72         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; };
  73 }
  74
  75 _busctl() {
  76         local i verb comps mode
  77         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  78         local -A OPTS=(
  79                [STANDALONE]='-h --help --version --no-pager --no-legend --system --user
  80                              --show-machine --unique --acquired --activatable --list
  81                              -q --quiet --verbose --expect-reply=no --auto-start=no
  82                              --allow-interactive-authorization=no --augment-creds=no
  83                              --watch-bind=yes'
  84                       [ARG]='--address -H --host -M --machine --match --timeout --size'
  85         )
  86
  87         if __contains_word "--user" ${COMP_WORDS[*]}; then
  88                 mode=--user
  89         else
  90                 mode=--system
  91         fi
  92
  93         if __contains_word "$prev" ${OPTS[ARG]}; then
  94                 case $prev in
  95                         --host|-H)
  96                                 comps=$(compgen -A hostname)
  97                         ;;
  98                         --machine|-M)
  99                                 comps=$( __get_machines )
 100                 esac
 101                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 102                 return 0
 103         fi
 104
 105         if [[ "$cur" = -* ]]; then
 106                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
 107                 return 0
 108         fi
 109
 110         local -A VERBS=(
 111                 [STANDALONE]='list help'
 112                 [BUSNAME]='status monitor capture tree'
 113                 [OBJECT]='introspect'
 114                 [METHOD]='call'
 115                 [PROPERTY_GET]='get-property'
 116                 [PROPERTY_SET]='set-property'
 117         )
 118
 119         for ((i=0; i < COMP_CWORD; i++)); do
 120                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
 121                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
 122                         verb=${COMP_WORDS[i]}
 123                         break
 124                 fi
 125         done
 126
 127         n=$(($COMP_CWORD - $i))
 128
 129         if [[ -z $verb ]]; then
 130                 comps=${VERBS[*]}
 131         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
 132                 comps=''
 133         elif __contains_word "$verb" ${VERBS[BUSNAME]}; then
 134                 comps=$( __get_busnames $mode)
 135         elif __contains_word "$verb" ${VERBS[OBJECT]}; then
 136                 if [[ $n -eq 1 ]] ; then
 137                         comps=$( __get_busnames $mode)
 138                 elif [[ $n -eq 2 ]] ; then
 139                         comps=$( __get_objects $mode ${COMP_WORDS[COMP_CWORD-1]})
 140                 elif [[ $n -eq 3 ]] ; then
 141                         comps=$( __get_interfaces $mode ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
 142                 else
 143                         comps=''
 144                 fi
 145         elif __contains_word "$verb" ${VERBS[METHOD]}; then
 146                 if [[ $n -eq 1 ]] ; then
 147                         comps=$( __get_busnames $mode)
 148                 elif [[ $n -eq 2 ]] ; then
 149                         comps=$( __get_objects $mode ${COMP_WORDS[COMP_CWORD-1]})
 150                 elif [[ $n -eq 3 ]] ; then
 151                         comps=$( __get_interfaces $mode ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
 152                 elif [[ $n -eq 4 ]] ; then
 153                         comps=$( __get_members $mode ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]} method)
 154                 elif [[ $n -eq 5 ]] ; then
 155                         comps=$( __get_signature $mode ${COMP_WORDS[COMP_CWORD-4]} ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
 156                 else
 157                         comps=''
 158                 fi
 159         elif __contains_word "$verb" ${VERBS[PROPERTY_GET]}; then
 160                 if [[ $n -eq 1 ]] ; then
 161                         comps=$( __get_busnames $mode)
 162                 elif [[ $n -eq 2 ]] ; then
 163                         comps=$( __get_objects $mode ${COMP_WORDS[COMP_CWORD-1]})
 164                 elif [[ $n -eq 3 ]] ; then
 165                         comps=$( __get_interfaces $mode ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
 166                 elif [[ $n -eq 4 ]] ; then
 167                         comps=$( __get_members $mode ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]} property)
 168                 else
 169                         comps=''
 170                 fi
 171         elif __contains_word "$verb" ${VERBS[PROPERTY_SET]}; then
 172                 if [[ $n -eq 1 ]] ; then
 173                         comps=$( __get_busnames $mode)
 174                 elif [[ $n -eq 2 ]] ; then
 175                         comps=$( __get_objects $mode ${COMP_WORDS[COMP_CWORD-1]})
 176                 elif [[ $n -eq 3 ]] ; then
 177                         comps=$( __get_interfaces $mode ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
 178                 elif [[ $n -eq 4 ]] ; then
 179                         comps=$( __get_members $mode ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]} property)
 180                 elif [[ $n -eq 5 ]] ; then
 181                         comps=$( __get_signature $mode ${COMP_WORDS[COMP_CWORD-4]} ${COMP_WORDS[COMP_CWORD-3]} ${COMP_WORDS[COMP_CWORD-2]} ${COMP_WORDS[COMP_CWORD-1]})
 182                 else
 183                         comps=''
 184                 fi
 185         fi
 186
 187         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 188         return 0
 189 }
 190
 191 complete -F _busctl busctl