shell-completion/bash/machinectl

   1 # machinectl(1) completion                      -*- shell-script -*-
   2 #
   3 # This file is part of systemd.
   4 #
   5 # Copyright 2014 Thomas H.P. Andersen
   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 __contains_word() {
  21         local w word=$1; shift
  22         for w in "$@"; do
  23                 [[ $w = "$word" ]] && return
  24         done
  25 }
  26
  27 __get_machines() {
  28         local a b
  29         (machinectl list-images --no-legend --no-pager; machinectl list --no-legend --no-pager; echo ".host") | \
  30                 { while read a b; do echo " $a"; done; } | sort -u;
  31 }
  32
  33 _machinectl() {
  34         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  35         local i verb comps
  36
  37         local -A OPTS=(
  38                [STANDALONE]='--all -a --full --help -h --no-ask-password --no-legend --no-pager --version'
  39                       [ARG]='--host -H --kill-who -M --machine --property -p --signal -s'
  40         )
  41
  42         local -A VERBS=(
  43                [STANDALONE]='list list-images pull-tar pull-raw pull-dkr import-tar import-raw export-tar export-raw list-transfers cancel-transfer'
  44                  [MACHINES]='status show start login shell enable disable poweroff reboot terminate kill copy-to copy-from image-status show-image clone rename read-only remove set-limit'
  45         )
  46
  47         _init_completion || return
  48
  49         for ((i=0; i <= COMP_CWORD; i++)); do
  50                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  51                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  52                         verb=${COMP_WORDS[i]}
  53                         break
  54                 fi
  55         done
  56
  57         if __contains_word "$prev" ${OPTS[ARG]}; then
  58                 case $prev in
  59                         --signal|-s)
  60                                 comps=$(compgen -A signal)
  61                         ;;
  62                         --kill-who)
  63                                 comps='all leader'
  64                         ;;
  65                         --host|-H)
  66                                 comps=$(compgen -A hostname)
  67                         ;;
  68                         --machine|-M)
  69                                 comps=$( __get_machines )
  70                         ;;
  71                         --property|-p)
  72                                 comps=''
  73                         ;;
  74                 esac
  75                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  76                 return 0
  77         fi
  78
  79         if [[ "$cur" = -* ]]; then
  80                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  81                 return 0
  82         fi
  83
  84         if [[ -z $verb ]]; then
  85                 comps=${VERBS[*]}
  86
  87         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
  88                 comps=''
  89
  90         elif __contains_word "$verb" ${VERBS[MACHINES]}; then
  91                 comps=$( __get_machines )
  92         fi
  93
  94         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  95         return 0
  96 }
  97
  98 complete -F _machinectl machinectl