shell-completion/bash/systemctl

   1 # systemctl(1) completion                                 -*- shell-script -*-
   2 #
   3 # This file is part of systemd.
   4 #
   5 # Copyright 2010 Ran Benita
   6 #
   7 # systemd is free software; you can redistribute it and/or modify it
   8 # under the terms of the GNU Lesser General Public License as published by
   9 # the Free Software Foundation; either version 2.1 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # systemd is distributed in the hope that it will be useful, but
  13 # WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15 # General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU Lesser General Public License
  18 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
  19
  20 __systemctl() {
  21         local mode=$1; shift 1
  22         systemctl $mode --full --no-legend "$@"
  23 }
  24
  25 __contains_word () {
  26         local word=$1; shift
  27         for w in $*; do [[ $w = $word ]] && return 0; done
  28         return 1
  29 }
  30
  31 __filter_units_by_property () {
  32         local mode=$1 property=$2 value=$3 ; shift 3
  33         local units=("$@")
  34         local props
  35         IFS=$'\n' read -rd '' -a props < \
  36             <(__systemctl $mode show --property "$property" -- "${units[@]}")
  37         for ((i=0; $i < ${#units[*]}; i++)); do
  38                 if [[ "${props[i]}" = "$property=$value" ]]; then
  39                         echo " ${units[i]}"
  40                 fi
  41         done
  42 }
  43
  44 __get_all_units      () { __systemctl $1 list-units --all \
  45         | { while read -r a b; do echo " $a"; done; }; }
  46 __get_active_units   () { __systemctl $1 list-units       \
  47         | { while read -r a b; do echo " $a"; done; }; }
  48 __get_startable_units () { __systemctl $1 list-units --all -t service,timer,socket,mount,automount,path,snapshot,swap \
  49         | { while read -r a b c d; do [[ $c == "inactive" || $c == "failed " ]] && echo " $a"; done; }; }
  50 __get_failed_units   () { __systemctl $1 list-units       \
  51         | { while read -r a b c d; do [[ $c == "failed"   ]] && echo " $a"; done; }; }
  52 __get_enabled_units  () { __systemctl $1 list-unit-files  \
  53         | { while read -r a b c  ; do [[ $b == "enabled"  ]] && echo " $a"; done; }; }
  54 __get_disabled_units () { __systemctl $1 list-unit-files  \
  55         | { while read -r a b c  ; do [[ $b == "disabled" ]] && echo " $a"; done; }; }
  56 __get_masked_units   () { __systemctl $1 list-unit-files  \
  57         | { while read -r a b c  ; do [[ $b == "masked"   ]] && echo " $a"; done; }; }
  58
  59 _systemctl () {
  60         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  61         local i verb comps mode
  62
  63         local -A OPTS=(
  64                [STANDALONE]='--all -a --defaults --fail --ignore-dependencies --failed --force -f --full --global
  65                              --help -h --no-ask-password --no-block --no-legend --no-pager --no-reload --no-wall
  66                              --quiet -q --privileged -P --system --user --version --runtime'
  67                       [ARG]='--host -H --kill-mode --kill-who --property -p --signal -s --type -t --root'
  68         )
  69
  70         if __contains_word "$prev" ${OPTS[ARG]}; then
  71                 case $prev in
  72                         --signal|-s)
  73                                 comps=$(compgen -A signal)
  74                         ;;
  75                         --type|-t)
  76                                 comps='automount device mount path service snapshot socket swap target timer'
  77                         ;;
  78                         --kill-who)
  79                                 comps='all control main'
  80                         ;;
  81                         --kill-mode)
  82                                 comps='control-group process'
  83                         ;;
  84                         --root)
  85                                 comps=$(compgen -A directory -- "$cur" )
  86                                 compopt -o filenames
  87                         ;;
  88                         --host|-H)
  89                                 comps=$(compgen -A hostname)
  90                         ;;
  91                         --property|-p)
  92                                 comps=''
  93                         ;;
  94                 esac
  95                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  96                 return 0
  97         fi
  98
  99         if [[ "$cur" = -* ]]; then
 100                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
 101                 return 0
 102         fi
 103
 104         if __contains_word "--user" ${COMP_WORDS[*]}; then
 105             mode=--user
 106         else
 107             mode=--system
 108         fi
 109
 110         local -A VERBS=(
 111                 [ALL_UNITS]='is-active is-failed is-enabled status show mask preset'
 112             [ENABLED_UNITS]='disable'
 113            [DISABLED_UNITS]='enable'
 114         [REENABLABLE_UNITS]='reenable'
 115              [FAILED_UNITS]='reset-failed'
 116           [STARTABLE_UNITS]='start'
 117           [STOPPABLE_UNITS]='stop condstop kill try-restart condrestart'
 118          [ISOLATABLE_UNITS]='isolate'
 119          [RELOADABLE_UNITS]='reload condreload reload-or-try-restart force-reload'
 120         [RESTARTABLE_UNITS]='restart reload-or-restart'
 121              [MASKED_UNITS]='unmask'
 122                      [JOBS]='cancel'
 123                 [SNAPSHOTS]='delete'
 124                      [ENVS]='set-environment unset-environment'
 125                [STANDALONE]='daemon-reexec daemon-reload default dump
 126                              emergency exit halt hibernate hybrid-sleep kexec list-jobs
 127                              list-units list-unit-files poweroff reboot rescue
 128                              show-environment suspend'
 129                      [NAME]='snapshot load'
 130                      [FILE]='link'
 131         )
 132
 133         for ((i=0; $i <= $COMP_CWORD; i++)); do
 134                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
 135                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
 136                         verb=${COMP_WORDS[i]}
 137                         break
 138                 fi
 139         done
 140
 141         if   [[ -z $verb ]]; then
 142                 comps="${VERBS[*]}"
 143
 144         elif __contains_word "$verb" ${VERBS[ALL_UNITS]}; then
 145                 comps=$( __get_all_units $mode )
 146
 147         elif __contains_word "$verb" ${VERBS[ENABLED_UNITS]}; then
 148                 comps=$( __get_enabled_units $mode )
 149
 150         elif __contains_word "$verb" ${VERBS[DISABLED_UNITS]}; then
 151                 comps=$( __get_disabled_units $mode )
 152
 153         elif __contains_word "$verb" ${VERBS[REENABLABLE_UNITS]}; then
 154                 comps=$( __get_disabled_units $mode;
 155                          __get_enabled_units $mode )
 156
 157         elif __contains_word "$verb" ${VERBS[STARTABLE_UNITS]}; then
 158                 comps=$( __filter_units_by_property $mode CanStart yes \
 159                       $( __get_startable_units $mode))
 160
 161         elif __contains_word "$verb" ${VERBS[RESTARTABLE_UNITS]}; then
 162                 comps=$( __filter_units_by_property $mode CanStart yes \
 163                       $( __get_all_units $mode \
 164                         | while read -r line; do \
 165                                 [[ "$line" =~ \.(device|snapshot|socket|timer)$ ]] || echo " $line"; \
 166                         done ))
 167
 168         elif __contains_word "$verb" ${VERBS[STOPPABLE_UNITS]}; then
 169                 comps=$( __filter_units_by_property $mode CanStop yes \
 170                       $( __get_active_units $mode ) )
 171
 172         elif __contains_word "$verb" ${VERBS[RELOADABLE_UNITS]}; then
 173                 comps=$( __filter_units_by_property $mode CanReload yes \
 174                       $( __get_active_units $mode ) )
 175
 176         elif __contains_word "$verb" ${VERBS[ISOLATABLE_UNITS]}; then
 177                 comps=$( __filter_units_by_property $mode AllowIsolate yes \
 178                       $( __get_all_units $mode ) )
 179
 180         elif __contains_word "$verb" ${VERBS[FAILED_UNITS]}; then
 181                 comps=$( __get_failed_units $mode )
 182
 183         elif __contains_word "$verb" ${VERBS[MASKED_UNITS]}; then
 184                 comps=$( __get_masked_units $mode )
 185
 186         elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[NAME]}; then
 187                 comps=''
 188
 189         elif __contains_word "$verb" ${VERBS[JOBS]}; then
 190                 comps=$( __systemctl $mode list-jobs | { while read -r a b; do echo " $a"; done; } )
 191
 192         elif __contains_word "$verb" ${VERBS[SNAPSHOTS]}; then
 193                 comps=$( __systemctl $mode list-units --type snapshot --full --all \
 194                         | { while read -r a b; do echo " $a"; done; } )
 195
 196         elif __contains_word "$verb" ${VERBS[ENVS]}; then
 197                 comps=$( __systemctl $mode show-environment \
 198                     | while read -r line; do echo " ${line%%=*}=";done )
 199                 compopt -o nospace
 200
 201         elif __contains_word "$verb" ${VERBS[FILE]}; then
 202                 comps=$( compgen -A file -- "$cur" )
 203                 compopt -o filenames
 204         fi
 205
 206         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 207         return 0
 208 }
 209
 210 complete -F _systemctl systemctl