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 __systemd_properties() {
  26         local mode=$1
  27         { __systemctl -a $mode show;
  28          systemd --dump-configuration-items; } |
  29         while IFS='=' read -r key value; do
  30             [[ $value ]] && echo "$key"
  31         done
  32 }
  33
  34 __contains_word () {
  35         local word=$1; shift
  36         for w in $*; do [[ $w = $word ]] && return 0; done
  37         return 1
  38 }
  39
  40 __filter_units_by_property () {
  41         local mode=$1 property=$2 value=$3 ; shift 3
  42         local units=("$@")
  43         local props
  44         IFS=$'\n' read -rd '' -a props < \
  45             <(__systemctl $mode show --property "$property" -- "${units[@]}")
  46         for ((i=0; $i < ${#units[*]}; i++)); do
  47                 if [[ "${props[i]}" = "$property=$value" ]]; then
  48                         echo " ${units[i]}"
  49                 fi
  50         done
  51 }
  52
  53 __get_all_units      () { __systemctl $1 list-units --all \
  54         | { while read -r a b; do echo " $a"; done; }; }
  55 __get_active_units   () { __systemctl $1 list-units       \
  56         | { while read -r a b; do echo " $a"; done; }; }
  57 __get_startable_units () { __systemctl $1 list-units --all -t service,timer,socket,mount,automount,path,snapshot,swap \
  58         | { while read -r a b c d; do [[ $c == "inactive" || $c == "failed " ]] && echo " $a"; done; }; }
  59 __get_failed_units   () { __systemctl $1 list-units       \
  60         | { while read -r a b c d; do [[ $c == "failed"   ]] && echo " $a"; done; }; }
  61 __get_enabled_units  () { __systemctl $1 list-unit-files  \
  62         | { while read -r a b c  ; do [[ $b == "enabled"  ]] && echo " $a"; done; }; }
  63 __get_disabled_units () { __systemctl $1 list-unit-files  \
  64         | { while read -r a b c  ; do [[ $b == "disabled" ]] && echo " $a"; done; }; }
  65 __get_masked_units   () { __systemctl $1 list-unit-files  \
  66         | { while read -r a b c  ; do [[ $b == "masked"   ]] && echo " $a"; done; }; }
  67
  68 _systemctl () {
  69         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  70         local i verb comps mode
  71
  72         local -A OPTS=(
  73                [STANDALONE]='--all -a --reverse --after --before --defaults --fail --ignore-dependencies --failed --force -f --full --global
  74                              --help -h --no-ask-password --no-block --no-legend --no-pager --no-reload --no-wall
  75                              --quiet -q --privileged -P --system --user --version --runtime'
  76                       [ARG]='--host -H --kill-mode --kill-who --property -p --signal -s --type -t --root'
  77         )
  78
  79         if __contains_word "--user" ${COMP_WORDS[*]}; then
  80             mode=--user
  81         else
  82             mode=--system
  83         fi
  84
  85         if __contains_word "$prev" ${OPTS[ARG]}; then
  86                 case $prev in
  87                         --signal|-s)
  88                                 comps=$(compgen -A signal)
  89                         ;;
  90                         --type|-t)
  91                                 comps='automount device mount path service snapshot socket swap target timer'
  92                         ;;
  93                         --kill-who)
  94                                 comps='all control main'
  95                         ;;
  96                         --kill-mode)
  97                                 comps='control-group process'
  98                         ;;
  99                         --root)
 100                                 comps=$(compgen -A directory -- "$cur" )
 101                                 compopt -o filenames
 102                         ;;
 103                         --host|-H)
 104                                 comps=$(compgen -A hostname)
 105                         ;;
 106                         --property|-p)
 107                                 comps=$(__systemd_properties $mode)
 108                         ;;
 109                 esac
 110                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 111                 return 0
 112         fi
 113
 114         if [[ "$cur" = -* ]]; then
 115                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
 116                 return 0
 117         fi
 118
 119         local -A VERBS=(
 120                 [ALL_UNITS]='is-active is-failed is-enabled status show mask preset help list-dependencies'
 121             [ENABLED_UNITS]='disable'
 122            [DISABLED_UNITS]='enable'
 123         [REENABLABLE_UNITS]='reenable'
 124              [FAILED_UNITS]='reset-failed'
 125           [STARTABLE_UNITS]='start'
 126           [STOPPABLE_UNITS]='stop condstop kill try-restart condrestart'
 127          [ISOLATABLE_UNITS]='isolate'
 128          [RELOADABLE_UNITS]='reload condreload reload-or-try-restart force-reload'
 129         [RESTARTABLE_UNITS]='restart reload-or-restart'
 130              [MASKED_UNITS]='unmask'
 131                      [JOBS]='cancel'
 132                 [SNAPSHOTS]='delete'
 133                      [ENVS]='set-environment unset-environment'
 134                [STANDALONE]='daemon-reexec daemon-reload default dump
 135                              emergency exit halt hibernate hybrid-sleep kexec list-jobs
 136                              list-units list-unit-files poweroff reboot rescue
 137                              show-environment suspend'
 138                      [NAME]='snapshot load'
 139                      [FILE]='link'
 140         )
 141
 142         for ((i=0; $i <= $COMP_CWORD; i++)); do
 143                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
 144                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
 145                         verb=${COMP_WORDS[i]}
 146                         break
 147                 fi
 148         done
 149
 150         if   [[ -z $verb ]]; then
 151                 comps="${VERBS[*]}"
 152
 153         elif __contains_word "$verb" ${VERBS[ALL_UNITS]}; then
 154                 comps=$( __get_all_units $mode )
 155
 156         elif __contains_word "$verb" ${VERBS[ENABLED_UNITS]}; then
 157                 comps=$( __get_enabled_units $mode )
 158
 159         elif __contains_word "$verb" ${VERBS[DISABLED_UNITS]}; then
 160                 comps=$( __get_disabled_units $mode )
 161
 162         elif __contains_word "$verb" ${VERBS[REENABLABLE_UNITS]}; then
 163                 comps=$( __get_disabled_units $mode;
 164                          __get_enabled_units $mode )
 165
 166         elif __contains_word "$verb" ${VERBS[STARTABLE_UNITS]}; then
 167                 comps=$( __filter_units_by_property $mode CanStart yes \
 168                       $( __get_startable_units $mode))
 169
 170         elif __contains_word "$verb" ${VERBS[RESTARTABLE_UNITS]}; then
 171                 comps=$( __filter_units_by_property $mode CanStart yes \
 172                       $( __get_all_units $mode \
 173                         | while read -r line; do \
 174                                 [[ "$line" =~ \.(device|snapshot|socket|timer)$ ]] || echo " $line"; \
 175                         done ))
 176
 177         elif __contains_word "$verb" ${VERBS[STOPPABLE_UNITS]}; then
 178                 comps=$( __filter_units_by_property $mode CanStop yes \
 179                       $( __get_active_units $mode ) )
 180
 181         elif __contains_word "$verb" ${VERBS[RELOADABLE_UNITS]}; then
 182                 comps=$( __filter_units_by_property $mode CanReload yes \
 183                       $( __get_active_units $mode ) )
 184
 185         elif __contains_word "$verb" ${VERBS[ISOLATABLE_UNITS]}; then
 186                 comps=$( __filter_units_by_property $mode AllowIsolate yes \
 187                       $( __get_all_units $mode ) )
 188
 189         elif __contains_word "$verb" ${VERBS[FAILED_UNITS]}; then
 190                 comps=$( __get_failed_units $mode )
 191
 192         elif __contains_word "$verb" ${VERBS[MASKED_UNITS]}; then
 193                 comps=$( __get_masked_units $mode )
 194
 195         elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[NAME]}; then
 196                 comps=''
 197
 198         elif __contains_word "$verb" ${VERBS[JOBS]}; then
 199                 comps=$( __systemctl $mode list-jobs | { while read -r a b; do echo " $a"; done; } )
 200
 201         elif __contains_word "$verb" ${VERBS[SNAPSHOTS]}; then
 202                 comps=$( __systemctl $mode list-units --type snapshot --full --all \
 203                         | { while read -r a b; do echo " $a"; done; } )
 204
 205         elif __contains_word "$verb" ${VERBS[ENVS]}; then
 206                 comps=$( __systemctl $mode show-environment \
 207                     | while read -r line; do echo " ${line%%=*}=";done )
 208                 compopt -o nospace
 209
 210         elif __contains_word "$verb" ${VERBS[FILE]}; then
 211                 comps=$( compgen -A file -- "$cur" )
 212                 compopt -o filenames
 213         fi
 214
 215         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 216         return 0
 217 }
 218
 219 complete -F _systemctl systemctl