shell-completion/bash/busctl

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