shell-completion/bash/portablectl

   1 # portablectl(1) completion                             -*- shell-script -*-
   2 # SPDX-License-Identifier: LGPL-2.1+
   3 #
   4 # This file is part of elogind.
   5 #
   6 #
   7 # elogind 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 # elogind 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 elogind; 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 --no-legend --no-pager 2>/dev/null |
  30                 { while read a b; do echo " $a"; done; };
  31 }
  32
  33 _portablectl() {
  34         local i n comps verb
  35         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  36         local -A OPTS=(
  37                 [STANDALONE]='-q --quiet --runtime --no-reload --cat --no-pager --no-legend
  38                               --no-ask-password -h --help --version'
  39                 [ARG]='-p --profile --copy -H --host -M --machine'
  40         )
  41
  42         local -A VERBS=(
  43                 [STANDALONE]='list'
  44                 [IMAGE]='attach detach inspect is-attached set-limit'
  45                 [IMAGES]='remove'
  46                 [IMAGE_WITH_BOOL]='read-only'
  47         )
  48
  49         if __contains_word "$prev" ${OPTS[ARG]}; then
  50                 case $prev in
  51                         --profile|-p)
  52                                 comps="default nonetwork strict trusted"
  53                                 ;;
  54                         --copy)
  55                                 comps="copy symlink auto"
  56                                 ;;
  57                         --host|-H)
  58                                 comps=$(compgen -A hostname)
  59                                 ;;
  60                         --machine|-M)
  61                                 comps=$( __get_machines )
  62                                 ;;
  63                 esac
  64                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  65                 return 0
  66         fi
  67
  68         if [[ "$cur" = -* ]]; then
  69                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  70                 return 0
  71         fi
  72
  73         for ((i=0; i < COMP_CWORD; i++)); do
  74                 if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  75                  ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  76                         verb=${COMP_WORDS[i]}
  77                         break
  78                 fi
  79         done
  80
  81         n=$(($COMP_CWORD - $i))
  82
  83         if [[ -z $verb ]]; then
  84                 comps=${VERBS[*]}
  85         elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
  86                 comps=''
  87         elif __contains_word "$verb" ${VERBS[IMAGE]}; then
  88                 if [[ $n == 1 ]]; then
  89                         comps=$( compgen -A file -- "$cur" )
  90                         compopt -o filenames
  91                 else
  92                         comps=''
  93                 fi
  94         elif __contains_word "$verb" ${VERBS[IMAGES]}; then
  95                 comps=$( compgen -A file -- "$cur" )
  96                 compopt -o filenames
  97         elif __contains_word "$verb" ${VERBS[IMAGE_WITH_BOOL]}; then
  98                 if [[ $n == 1 ]]; then
  99                         comps=$( compgen -A file -- "$cur" )
 100                         compopt -o filenames
 101                 elif [[ $n == 2 ]]; then
 102                         comps='yes no'
 103                 else
 104                         comps=''
 105                 fi
 106         fi
 107
 108         COMPREPLY=( $(compgen -o filenames -W '$comps' -- "$cur") )
 109         return 0
 110 }
 111
 112 complete -F _portablectl portablectl