src/systemd-bash-completion.sh

   1 # This file is part of systemd.
   2 #
   3 # Copyright 2010 Ran Benita
   4 #
   5 # systemd is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # systemd is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  13 # General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
  17
  18 __systemctl() {
  19         systemctl --full --no-legend "$@"
  20 }
  21
  22 __contains_word () {
  23         local word=$1; shift
  24         for w in $*; do [[ $w = $word ]] && return 0; done
  25         return 1
  26 }
  27
  28 __filter_units_by_property () {
  29         local property=$1 value=$2 ; shift 2
  30         local units=("$@")
  31         local props
  32         IFS=$'\n' read -rd '' -a props < \
  33             <(__systemctl show --property "$property" -- "${units[@]}")
  34         for ((i=0; $i < ${#units[*]}; i++)); do
  35                 if [[ "${props[i]}" = "$property=$value" ]]; then
  36                         echo "${units[i]}"
  37                 fi
  38         done
  39 }
  40
  41 __get_all_units      () { __systemctl list-units --all \
  42         | { while read a b; do echo "$a"; done; }; }
  43 __get_active_units   () { __systemctl list-units       \
  44         | { while read a b; do echo "$a"; done; }; }
  45 __get_inactive_units () { __systemctl list-units --all \
  46         | { while read a b c d; do [[ $c == "inactive" ]] && echo "$a"; done; }; }
  47 __get_failed_units   () { __systemctl list-units       \
  48         | { while read a b c d; do [[ $c == "failed"   ]] && echo "$a"; done; }; }
  49 __get_enabled_units  () { __systemctl list-unit-files  \
  50         | { while read a b c  ; do [[ $b == "enabled"  ]] && echo "$a"; done; }; }
  51 __get_disabled_units () { __systemctl list-unit-files  \
  52         | { while read a b c  ; do [[ $b == "disabled" ]] && echo "$a"; done; }; }
  53 __get_masked_units   () { __systemctl list-unit-files  \
  54         | { while read a b c  ; do [[ $b == "masked"   ]] && echo "$a"; done; }; }
  55
  56 _systemctl () {
  57         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  58         local verb comps
  59
  60         local -A OPTS=(
  61                [STANDALONE]='--all -a --defaults --fail --ignore-dependencies --failed --force -f --full --global
  62                              --help -h --no-ask-password --no-block --no-legend --no-pager --no-reload --no-wall
  63                              --order --require --quiet -q --privileged -P --system --user --version --runtime'
  64                       [ARG]='--host -H --kill-mode --kill-who --property -p --signal -s --type -t --root'
  65         )
  66
  67         if __contains_word "$prev" ${OPTS[ARG]}; then
  68                 case $prev in
  69                         --signal|-s)
  70                                 comps=$(compgen -A signal)
  71                         ;;
  72                         --type|-t)
  73                                 comps='automount device mount path service snapshot socket swap target timer'
  74                         ;;
  75                         --kill-who)
  76                                 comps='all control main'
  77                         ;;
  78                         --kill-mode)
  79                                 comps='control-group process'
  80                         ;;
  81                         --root)
  82                                 comps=$(compgen -A directory -- "$cur" )
  83                                 compopt -o filenames
  84                         ;;
  85                         --host|-H)
  86                                 comps=$(compgen -A hostname)
  87                         ;;
  88                         --property|-p)
  89                                 comps=''
  90                         ;;
  91                 esac
  92                 COMPREPLY=( $(compgen -W "$comps" -- "$cur") )
  93                 return 0
  94         fi
  95
  96
  97         if [[ "$cur" = -* ]]; then
  98                 COMPREPLY=( $(compgen -W "${OPTS[*]}" -- "$cur") )
  99                 return 0
 100         fi
 101
 102         local -A VERBS=(
 103                 [ALL_UNITS]='is-active is-enabled status show mask preset'
 104             [ENABLED_UNITS]='disable reenable'
 105            [DISABLED_UNITS]='enable'
 106              [FAILED_UNITS]='reset-failed'
 107           [STARTABLE_UNITS]='start'
 108           [STOPPABLE_UNITS]='stop condstop kill try-restart condrestart'
 109          [ISOLATABLE_UNITS]='isolate'
 110          [RELOADABLE_UNITS]='reload condreload reload-or-try-restart force-reload'
 111         [RESTARTABLE_UNITS]='restart reload-or-restart'
 112              [MASKED_UNITS]='unmask'
 113                      [JOBS]='cancel'
 114                 [SNAPSHOTS]='delete'
 115                      [ENVS]='set-environment unset-environment'
 116                [STANDALONE]='daemon-reexec daemon-reload default dot dump
 117                              emergency exit halt kexec list-jobs list-units
 118                              list-unit-files poweroff reboot rescue show-environment'
 119                      [NAME]='snapshot load'
 120                      [FILE]='link'
 121         )
 122
 123         for ((i=0; $i <= $COMP_CWORD; i++)); do
 124                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
 125                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG}]}; then
 126                         verb=${COMP_WORDS[i]}
 127                         break
 128                 fi
 129         done
 130
 131         if   [[ -z $verb ]]; then
 132                 comps="${VERBS[*]}"
 133
 134         elif __contains_word "$verb" ${VERBS[ALL_UNITS]}; then
 135                 comps=$( __get_all_units )
 136
 137         elif __contains_word "$verb" ${VERBS[ENABLED_UNITS]}; then
 138                 comps=$( __get_enabled_units )
 139
 140         elif __contains_word "$verb" ${VERBS[DISABLED_UNITS]}; then
 141                 comps=$( __get_disabled_units )
 142
 143         elif __contains_word "$verb" ${VERBS[STARTABLE_UNITS]}; then
 144                 comps=$( __filter_units_by_property CanStart yes \
 145                       $( __get_inactive_units \
 146                         | while read line; do \
 147                                 [[ "$line" =~ \.(device|snapshot)$ ]] || echo "$line"; \
 148                         done ))
 149
 150         elif __contains_word "$verb" ${VERBS[RESTARTABLE_UNITS]}; then
 151                 comps=$( __filter_units_by_property CanStart yes \
 152                       $( __get_all_units \
 153                         | while read line; do \
 154                                 [[ "$line" =~ \.(device|snapshot|socket|timer)$ ]] || echo "$line"; \
 155                         done ))
 156
 157         elif __contains_word "$verb" ${VERBS[STOPPABLE_UNITS]}; then
 158                 comps=$( __filter_units_by_property CanStop yes \
 159                       $( __get_active_units ) )
 160
 161         elif __contains_word "$verb" ${VERBS[RELOADABLE_UNITS]}; then
 162                 comps=$( __filter_units_by_property CanReload yes \
 163                       $( __get_active_units ) )
 164
 165         elif __contains_word "$verb" ${VERBS[ISOLATABLE_UNITS]}; then
 166                 comps=$( __filter_units_by_property AllowIsolate yes \
 167                       $( __get_all_units ) )
 168
 169         elif __contains_word "$verb" ${VERBS[FAILED_UNITS]}; then
 170                 comps=$( __get_failed_units )
 171
 172         elif __contains_word "$verb" ${VERBS[MASKED_UNITS]}; then
 173                 comps=$( __get_masked_units )
 174
 175         elif __contains_word "$verb" ${VERBS[STANDALONE]} ${VERBS[NAME]}; then
 176                 comps=''
 177
 178         elif __contains_word "$verb" ${VERBS[JOBS]}; then
 179                 comps=$( __systemctl list-jobs | { while read a b; do echo "$a"; done; } )
 180
 181         elif __contains_word "$verb" ${VERBS[SNAPSHOTS]}; then
 182                 comps=$( __systemctl list-units --type snapshot --full --all \
 183                         | { while read a b; do echo "$a"; done; } )
 184
 185         elif __contains_word "$verb" ${VERBS[ENVS]}; then
 186                 comps=$( __systemctl show-environment \
 187                     | while read line; do echo "${line%%=*}=";done )
 188                 compopt -o nospace
 189
 190         elif __contains_word "$verb" ${VERBS[FILE]}; then
 191                 comps=$( compgen -A file -- "$cur" )
 192                 compopt -o filenames
 193         fi
 194
 195         COMPREPLY=( $(compgen -W "$comps" -- "$cur") )
 196         return 0
 197 }
 198 complete -F _systemctl systemctl
 199
 200 __get_all_sessions () { systemd-loginctl list-sessions | { while read a b; do echo "$a"; done; } ; }
 201 __get_all_users    () { systemd-loginctl list-users    | { while read a b; do echo "$b"; done; } ; }
 202 __get_all_seats    () { systemd-loginctl list-seats    | { while read a b; do echo "$a"; done; } ; }
 203
 204 _systemd_loginctl () {
 205         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
 206         local verb comps
 207
 208         local -A OPTS=(
 209                [STANDALONE]='--all -a --help -h --no-pager --privileged -P --version'
 210                       [ARG]='--host -H --kill-who --property -p --signal -s'
 211         )
 212
 213         if __contains_word "$prev" ${OPTS[ARG]}; then
 214                 case $prev in
 215                         --signal|-s)
 216                                 comps=$(compgen -A signal)
 217                         ;;
 218                         --kill-who)
 219                                 comps='all leader'
 220                         ;;
 221                         --host|-H)
 222                                 comps=$(compgen -A hostname)
 223                         ;;
 224                         --property|-p)
 225                                 comps=''
 226                         ;;
 227                 esac
 228                 COMPREPLY=( $(compgen -W "$comps" -- "$cur") )
 229                 return 0
 230         fi
 231
 232
 233         if [[ "$cur" = -* ]]; then
 234                 COMPREPLY=( $(compgen -W "${OPTS[*]}" -- "$cur") )
 235                 return 0
 236         fi
 237
 238         local -A VERBS=(
 239                 [SESSIONS]='session-status show-session activate lock-session unlock-session terminate-session kill-session'
 240                 [USERS]='user-status show-user enable-linger disable-linger terminate-user kill-user'
 241                 [SEATS]='seat-status show-seat terminate-seat'
 242                 [STANDALONE]='list-sessions list-users list-seats flush-devices'
 243                 [ATTACH]='attach'
 244         )
 245
 246         for ((i=0; $i <= $COMP_CWORD; i++)); do
 247                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
 248                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG}]}; then
 249                         verb=${COMP_WORDS[i]}
 250                         break
 251                 fi
 252         done
 253
 254         if   [[ -z $verb ]]; then
 255                 comps="${VERBS[*]}"
 256
 257         elif __contains_word "$verb" ${VERBS[SESSIONS]}; then
 258                 comps=$( __get_all_sessions )
 259
 260         elif __contains_word "$verb" ${VERBS[USERS]}; then
 261                 comps=$( __get_all_users )
 262
 263         elif __contains_word "$verb" ${VERBS[SEATS]}; then
 264                 comps=$( __get_all_seats )
 265
 266         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
 267                 comps=''
 268
 269         elif __contains_word "$verb" ${VERBS[ATTACH]}; then
 270                 if [[ $prev = $verb ]]; then
 271                         comps=$( __get_all_seats )
 272                 else
 273                         comps=$(compgen -A file -- "$cur" )
 274                         compopt -o filenames
 275                 fi
 276         fi
 277
 278         COMPREPLY=( $(compgen -W "$comps" -- "$cur") )
 279         return 0
 280 }
 281 complete -F _systemd_loginctl systemd-loginctl