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 w word=$1; shift
  36         for w in "$@"; do
  37                 [[ $w = "$word" ]] && return
  38         done
  39 }
  40
  41 __filter_units_by_property () {
  42         local mode=$1 property=$2 value=$3 ; shift 3
  43         local units=("$@")
  44         local props
  45         IFS=$'\n' read -rd '' -a props < \
  46             <(__systemctl $mode show --property "$property" -- "${units[@]}")
  47         for ((i=0; $i < ${#units[*]}; i++)); do
  48                 if [[ "${props[i]}" = "$property=$value" ]]; then
  49                         echo " ${units[i]}"
  50                 fi
  51         done
  52 }
  53
  54 __get_all_units      () { __systemctl $1 list-units --all \
  55         | { while read -r a b; do echo " $a"; done; }; }
  56 __get_active_units   () { __systemctl $1 list-units       \
  57         | { while read -r a b; do echo " $a"; done; }; }
  58 __get_startable_units () { __systemctl $1 list-units --all -t service,timer,socket,mount,automount,path,snapshot,swap \
  59         | { while read -r a b c d; do [[ $c == "inactive" || $c == "failed" ]] && echo " $a"; done; }; }
  60 __get_failed_units   () { __systemctl $1 list-units       \
  61         | { while read -r a b c d; do [[ $c == "failed"   ]] && echo " $a"; done; }; }
  62 __get_enabled_units  () { __systemctl $1 list-unit-files  \
  63         | { while read -r a b c  ; do [[ $b == "enabled"  ]] && echo " $a"; done; }; }
  64 __get_disabled_units () { __systemctl $1 list-unit-files  \
  65         | { while read -r a b c  ; do [[ $b == "disabled" ]] && echo " $a"; done; }; }
  66 __get_masked_units   () { __systemctl $1 list-unit-files  \
  67         | { while read -r a b c  ; do [[ $b == "masked"   ]] && echo " $a"; done; }; }
  68
  69 _systemctl () {
  70         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  71         local i verb comps mode
  72
  73         local -A OPTS=(
  74                [STANDALONE]='--all -a --reverse --after --before --defaults --fail --ignore-dependencies --failed --force -f --full -l --global
  75                              --help -h --no-ask-password --no-block --no-legend --no-pager --no-reload --no-wall
  76                              --quiet -q --privileged -P --system --user --version --runtime --recursive -r'
  77                       [ARG]='--host -H --kill-who --property -p --signal -s --type -t --state --root'
  78         )
  79
  80         if __contains_word "--user" ${COMP_WORDS[*]}; then
  81             mode=--user
  82         else
  83             mode=--system
  84         fi
  85
  86         if __contains_word "$prev" ${OPTS[ARG]}; then
  87                 case $prev in
  88                         --signal|-s)
  89                                 comps=$(compgen -A signal)
  90                         ;;
  91                         --type|-t)
  92                                 comps='automount device mount path service snapshot socket swap target timer'
  93                         ;;
  94                         --state)
  95                                 comps='loaded not-found stub
  96                                        active inactive
  97                                        dead elapsed exited listening mounted plugged running waiting'
  98                         ;;
  99                         --kill-who)
 100                                 comps='all control main'
 101                         ;;
 102                         --root)
 103                                 comps=$(compgen -A directory -- "$cur" )
 104                                 compopt -o filenames
 105                         ;;
 106                         --host|-H)
 107                                 comps=$(compgen -A hostname)
 108                         ;;
 109                         --property|-p)
 110                                 comps=$(__systemd_properties $mode)
 111                         ;;
 112                 esac
 113                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 114                 return 0
 115         fi
 116
 117         if [[ "$cur" = -* ]]; then
 118                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
 119                 return 0
 120         fi
 121
 122         local -A VERBS=(
 123                 [ALL_UNITS]='is-active is-failed is-enabled status show cat mask preset help list-dependencies'
 124             [ENABLED_UNITS]='disable'
 125            [DISABLED_UNITS]='enable'
 126         [REENABLABLE_UNITS]='reenable'
 127              [FAILED_UNITS]='reset-failed'
 128           [STARTABLE_UNITS]='start'
 129           [STOPPABLE_UNITS]='stop condstop kill try-restart condrestart'
 130          [ISOLATABLE_UNITS]='isolate'
 131          [RELOADABLE_UNITS]='reload condreload reload-or-try-restart force-reload'
 132         [RESTARTABLE_UNITS]='restart reload-or-restart'
 133              [MASKED_UNITS]='unmask'
 134                      [JOBS]='cancel'
 135                 [SNAPSHOTS]='delete'
 136                      [ENVS]='set-environment unset-environment'
 137                [STANDALONE]='daemon-reexec daemon-reload default
 138                              emergency exit halt hibernate hybrid-sleep kexec list-jobs
 139                              list-sockets list-timers list-units list-unit-files poweroff
 140                              reboot rescue show-environment suspend get-default'
 141                      [NAME]='snapshot'
 142                      [FILE]='link'
 143                   [TARGETS]='set-default'
 144         )
 145
 146         for ((i=0; i < COMP_CWORD; i++)); do
 147                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
 148                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
 149                         verb=${COMP_WORDS[i]}
 150                         break
 151                 fi
 152         done
 153
 154         if [[ -z $verb ]]; then
 155                 comps="${VERBS[*]}"
 156
 157         elif __contains_word "$verb" ${VERBS[ALL_UNITS]}; then
 158                 comps=$( __get_all_units $mode )
 159
 160         elif __contains_word "$verb" ${VERBS[ENABLED_UNITS]}; then
 161                 comps=$( __get_enabled_units $mode )
 162
 163         elif __contains_word "$verb" ${VERBS[DISABLED_UNITS]}; then
 164                 comps=$( __get_disabled_units $mode )
 165
 166         elif __contains_word "$verb" ${VERBS[REENABLABLE_UNITS]}; then
 167                 comps=$( __get_disabled_units $mode;
 168                          __get_enabled_units $mode )
 169
 170         elif __contains_word "$verb" ${VERBS[STARTABLE_UNITS]}; then
 171                 comps=$( __filter_units_by_property $mode CanStart yes \
 172                       $( __get_startable_units $mode))
 173
 174         elif __contains_word "$verb" ${VERBS[RESTARTABLE_UNITS]}; then
 175                 comps=$( __filter_units_by_property $mode CanStart yes \
 176                       $( __get_all_units $mode \
 177                         | while read -r line; do \
 178                                 [[ "$line" =~ \.(device|snapshot|socket|timer)$ ]] || echo " $line"; \
 179                         done ))
 180
 181         elif __contains_word "$verb" ${VERBS[STOPPABLE_UNITS]}; then
 182                 comps=$( __filter_units_by_property $mode CanStop yes \
 183                       $( __get_active_units $mode ) )
 184
 185         elif __contains_word "$verb" ${VERBS[RELOADABLE_UNITS]}; then
 186                 comps=$( __filter_units_by_property $mode CanReload yes \
 187                       $( __get_active_units $mode ) )
 188
 189         elif __contains_word "$verb" ${VERBS[ISOLATABLE_UNITS]}; then
 190                 comps=$( __filter_units_by_property $mode AllowIsolate yes \
 191                       $( __get_all_units $mode ) )
 192
 193         elif __contains_word "$verb" ${VERBS[FAILED_UNITS]}; then
 194                 comps=$( __get_failed_units $mode )
 195
 196         elif __contains_word "$verb" ${VERBS[MASKED_UNITS]}; then
 197                 comps=$( __get_masked_units $mode )
 198
 199         elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[NAME]}; then
 200                 comps=''
 201
 202         elif __contains_word "$verb" ${VERBS[JOBS]}; then
 203                 comps=$( __systemctl $mode list-jobs | { while read -r a b; do echo " $a"; done; } )
 204
 205         elif __contains_word "$verb" ${VERBS[SNAPSHOTS]}; then
 206                 comps=$( __systemctl $mode list-units --type snapshot --full --all \
 207                         | { while read -r a b; do echo " $a"; done; } )
 208
 209         elif __contains_word "$verb" ${VERBS[ENVS]}; then
 210                 comps=$( __systemctl $mode show-environment \
 211                     | while read -r line; do echo " ${line%%=*}=";done )
 212                 compopt -o nospace
 213
 214         elif __contains_word "$verb" ${VERBS[FILE]}; then
 215                 comps=$( compgen -A file -- "$cur" )
 216                 compopt -o filenames
 217         elif __contains_word "$verb" ${VERBS[TARGETS]}; then
 218                 comps=$( __systemctl $mode list-unit-files --type target --full --all \
 219                         | { while read -r a b; do echo " $a"; done; } )
 220         fi
 221
 222         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 223         return 0
 224 }
 225
 226 complete -F _systemctl systemctl