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         systemctl --full --no-legend "$@"
  22 }
  23
  24 __contains_word () {
  25         local word=$1; shift
  26         for w in $*; do [[ $w = $word ]] && return 0; done
  27         return 1
  28 }
  29
  30 __filter_units_by_property () {
  31         local property=$1 value=$2 ; shift 2
  32         local units=("$@")
  33         local props
  34         IFS=$'\n' read -rd '' -a props < \
  35             <(__systemctl show --property "$property" -- "${units[@]}")
  36         for ((i=0; $i < ${#units[*]}; i++)); do
  37                 if [[ "${props[i]}" = "$property=$value" ]]; then
  38                         printf "%s\n" "${units[i]}"
  39                 fi
  40         done
  41 }
  42
  43 __get_all_units      () { __systemctl list-units --all \
  44         | { while read -r a b; do printf "%s\n" "$a"; done; }; }
  45 __get_active_units   () { __systemctl list-units       \
  46         | { while read -r a b; do printf "%s\n" "$a"; done; }; }
  47 __get_inactive_units () { __systemctl list-units --all \
  48         | { while read -r a b c d; do [[ $c == "inactive" ]] && printf "%s\n" "$a"; done; }; }
  49 __get_failed_units   () { __systemctl list-units       \
  50         | { while read -r a b c d; do [[ $c == "failed"   ]] && printf "%s\n" "$a"; done; }; }
  51 __get_enabled_units  () { __systemctl list-unit-files  \
  52         | { while read -r a b c  ; do [[ $b == "enabled"  ]] && printf "%s\n" "$a"; done; }; }
  53 __get_disabled_units () { __systemctl list-unit-files  \
  54         | { while read -r a b c  ; do [[ $b == "disabled" ]] && printf "%s\n" "$a"; done; }; }
  55 __get_masked_units   () { __systemctl list-unit-files  \
  56         | { while read -r a b c  ; do [[ $b == "masked"   ]] && printf "%s\n" "$a"; done; }; }
  57
  58 _systemctl () {
  59         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  60         local i verb comps
  61
  62         local -A OPTS=(
  63                [STANDALONE]='--all -a --defaults --fail --ignore-dependencies --failed --force -f --full --global
  64                              --help -h --no-ask-password --no-block --no-legend --no-pager --no-reload --no-wall
  65                              --quiet -q --privileged -P --system --user --version --runtime'
  66                       [ARG]='--host -H --kill-mode --kill-who --property -p --signal -s --type -t --root'
  67         )
  68
  69         if __contains_word "$prev" ${OPTS[ARG]}; then
  70                 case $prev in
  71                         --signal|-s)
  72                                 comps=$(compgen -A signal)
  73                         ;;
  74                         --type|-t)
  75                                 comps='automount device mount path service snapshot socket swap target timer'
  76                         ;;
  77                         --kill-who)
  78                                 comps='all control main'
  79                         ;;
  80                         --kill-mode)
  81                                 comps='control-group process'
  82                         ;;
  83                         --root)
  84                                 comps=$(compgen -A directory -- "$cur" )
  85                                 compopt -o filenames
  86                         ;;
  87                         --host|-H)
  88                                 comps=$(compgen -A hostname)
  89                         ;;
  90                         --property|-p)
  91                                 comps=''
  92                         ;;
  93                 esac
  94                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  95                 return 0
  96         fi
  97
  98
  99         if [[ "$cur" = -* ]]; then
 100                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
 101                 return 0
 102         fi
 103
 104         local -A VERBS=(
 105                 [ALL_UNITS]='is-active is-failed is-enabled status show mask preset'
 106             [ENABLED_UNITS]='disable reenable'
 107            [DISABLED_UNITS]='enable'
 108              [FAILED_UNITS]='reset-failed'
 109           [STARTABLE_UNITS]='start'
 110           [STOPPABLE_UNITS]='stop condstop kill try-restart condrestart'
 111          [ISOLATABLE_UNITS]='isolate'
 112          [RELOADABLE_UNITS]='reload condreload reload-or-try-restart force-reload'
 113         [RESTARTABLE_UNITS]='restart reload-or-restart'
 114              [MASKED_UNITS]='unmask'
 115                      [JOBS]='cancel'
 116                 [SNAPSHOTS]='delete'
 117                      [ENVS]='set-environment unset-environment'
 118                [STANDALONE]='daemon-reexec daemon-reload default dump
 119                              emergency exit halt hibernate hybrid-sleep kexec list-jobs
 120                              list-units list-unit-files poweroff reboot rescue
 121                              show-environment suspend'
 122                      [NAME]='snapshot load'
 123                      [FILE]='link'
 124         )
 125
 126         for ((i=0; $i <= $COMP_CWORD; i++)); do
 127                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
 128                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
 129                         verb=${COMP_WORDS[i]}
 130                         break
 131                 fi
 132         done
 133
 134         if   [[ -z $verb ]]; then
 135                 comps="${VERBS[*]}"
 136
 137         elif __contains_word "$verb" ${VERBS[ALL_UNITS]}; then
 138                 comps=$( __get_all_units )
 139
 140         elif __contains_word "$verb" ${VERBS[ENABLED_UNITS]}; then
 141                 comps=$( __get_enabled_units )
 142
 143         elif __contains_word "$verb" ${VERBS[DISABLED_UNITS]}; then
 144                 comps=$( __get_disabled_units )
 145
 146         elif __contains_word "$verb" ${VERBS[STARTABLE_UNITS]}; then
 147                 comps=$( __filter_units_by_property CanStart yes \
 148                       $( __get_inactive_units \
 149                         | while read -r line; do \
 150                                 [[ "$line" =~ \.(device|snapshot)$ ]] || printf "%s\n" "$line"; \
 151                         done ))
 152
 153         elif __contains_word "$verb" ${VERBS[RESTARTABLE_UNITS]}; then
 154                 comps=$( __filter_units_by_property CanStart yes \
 155                       $( __get_all_units \
 156                         | while read -r line; do \
 157                                 [[ "$line" =~ \.(device|snapshot|socket|timer)$ ]] || printf "%s\n" "$line"; \
 158                         done ))
 159
 160         elif __contains_word "$verb" ${VERBS[STOPPABLE_UNITS]}; then
 161                 comps=$( __filter_units_by_property CanStop yes \
 162                       $( __get_active_units ) )
 163
 164         elif __contains_word "$verb" ${VERBS[RELOADABLE_UNITS]}; then
 165                 comps=$( __filter_units_by_property CanReload yes \
 166                       $( __get_active_units ) )
 167
 168         elif __contains_word "$verb" ${VERBS[ISOLATABLE_UNITS]}; then
 169                 comps=$( __filter_units_by_property AllowIsolate yes \
 170                       $( __get_all_units ) )
 171
 172         elif __contains_word "$verb" ${VERBS[FAILED_UNITS]}; then
 173                 comps=$( __get_failed_units )
 174
 175         elif __contains_word "$verb" ${VERBS[MASKED_UNITS]}; then
 176                 comps=$( __get_masked_units )
 177
 178         elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[NAME]}; then
 179                 comps=''
 180
 181         elif __contains_word "$verb" ${VERBS[JOBS]}; then
 182                 comps=$( __systemctl list-jobs | { while read -r a b; do printf "%s\n" "$a"; done; } )
 183
 184         elif __contains_word "$verb" ${VERBS[SNAPSHOTS]}; then
 185                 comps=$( __systemctl list-units --type snapshot --full --all \
 186                         | { while read -r a b; do printf "%s\n" "$a"; done; } )
 187
 188         elif __contains_word "$verb" ${VERBS[ENVS]}; then
 189                 comps=$( __systemctl show-environment \
 190                     | while read -r line; do printf "%s\n" "${line%%=*}=";done )
 191                 compopt -o nospace
 192
 193         elif __contains_word "$verb" ${VERBS[FILE]}; then
 194                 comps=$( compgen -A file -- "$cur" )
 195                 compopt -o filenames
 196         fi
 197
 198         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 199         return 0
 200 }
 201
 202 complete -F _systemctl systemctl