shell-completion/bash/loginctl

   1 # loginctl(1) completion                                  -*- shell-script -*-
   2 # SPDX-License-Identifier: LGPL-2.1+
   3 #
   4 # This file is part of systemd.
   5 #
   6 # Copyright © 2010 Ran Benita
   7 #
   8 # systemd is free software; you can redistribute it and/or modify it
   9 # under the terms of the GNU Lesser General Public License as published by
  10 # the Free Software Foundation; either version 2.1 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # systemd is distributed in the hope that it will be useful, but
  14 # WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16 # General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU Lesser General Public License
  19 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20
  21 __contains_word () {
  22         local w word=$1; shift
  23         for w in "$@"; do
  24                 [[ $w = "$word" ]] && return
  25         done
  26 }
  27
  28 __get_all_sessions () { loginctl --no-legend list-sessions | { while read -r a b; do printf "%s\n" "$a"; done; } ; }
  29 __get_all_users    () { loginctl --no-legend list-users    | { while read -r a b; do printf "%s\n" "$b"; done; } ; }
  30 __get_all_seats    () { loginctl --no-legend list-seats    | { while read -r a b; do printf "%s\n" "$a"; done; } ; }
  31
  32 __get_machines() {
  33         local a b
  34         machinectl list --no-legend --no-pager 2>/dev/null |
  35                 { while read a b; do echo " $a"; done; };
  36 }
  37
  38 _loginctl () {
  39         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  40         local i verb comps
  41
  42         local -A OPTS=(
  43                [STANDALONE]='--all -a --help -h --no-pager --version
  44                              --no-legend --no-ask-password -l --full --value'
  45                       [ARG]='--host -H --kill-who --property -p --signal -s -M --machine
  46                              -n --lines -o --output'
  47         )
  48
  49         if __contains_word "$prev" ${OPTS[ARG]}; then
  50                 case $prev in
  51                         --signal|-s)
  52                                 _signals
  53                                 return
  54                         ;;
  55                         --kill-who)
  56                                 comps='all leader'
  57                         ;;
  58                         --host|-H)
  59                                 comps=$(compgen -A hostname)
  60                         ;;
  61                         --machine|-M)
  62                                 comps=$( __get_machines )
  63                         ;;
  64                         --property|-p)
  65                                 comps=''
  66                         ;;
  67                         --output|-o)
  68                                 comps=$( loginctl --output=help 2>/dev/null )
  69                         ;;
  70                 esac
  71                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  72                 return 0
  73         fi
  74
  75
  76         if [[ "$cur" = -* ]]; then
  77                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  78                 return 0
  79         fi
  80
  81         local -A VERBS=(
  82                 [SESSIONS]='session-status show-session activate lock-session unlock-session terminate-session kill-session'
  83                 [USERS]='user-status show-user enable-linger disable-linger terminate-user kill-user'
  84                 [SEATS]='seat-status show-seat terminate-seat'
  85                 [STANDALONE]='list-sessions lock-sessions unlock-sessions list-users list-seats flush-devices'
  86                 [ATTACH]='attach'
  87         )
  88
  89         for ((i=0; i < COMP_CWORD; i++)); do
  90                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  91                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  92                         verb=${COMP_WORDS[i]}
  93                         break
  94                 fi
  95         done
  96
  97         if   [[ -z $verb ]]; then
  98                 comps="${VERBS[*]}"
  99
 100         elif __contains_word "$verb" ${VERBS[SESSIONS]}; then
 101                 comps=$( __get_all_sessions )
 102
 103         elif __contains_word "$verb" ${VERBS[USERS]}; then
 104                 comps=$( __get_all_users )
 105
 106         elif __contains_word "$verb" ${VERBS[SEATS]}; then
 107                 comps=$( __get_all_seats )
 108
 109         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
 110                 comps=''
 111
 112         elif __contains_word "$verb" ${VERBS[ATTACH]}; then
 113                 if [[ $prev = $verb ]]; then
 114                         comps=$( __get_all_seats )
 115                 else
 116                         comps=$(compgen -A file -- "$cur" )
 117                         compopt -o filenames
 118                 fi
 119         fi
 120
 121         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 122         return 0
 123 }
 124
 125 complete -F _loginctl loginctl