shell-completion/bash/portablectl

   1 # portablectl(1) completion                             -*- shell-script -*-
   2 # SPDX-License-Identifier: LGPL-2.1+
   3 #
   4 # This file is part of systemd.
   5 #
   6 # systemd is free software; you can redistribute it and/or modify it
   7 # under the terms of the GNU Lesser General Public License as published by
   8 # the Free Software Foundation; either version 2.1 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # systemd is distributed in the hope that it will be useful, but
  12 # WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14 # General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU Lesser General Public License
  17 # along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18
  19 __contains_word () {
  20     local w word=$1; shift
  21     for w in "$@"; do
  22         [[ $w = "$word" ]] && return
  23     done
  24 }
  25
  26 __get_machines() {
  27     local a b
  28     machinectl list --no-legend --no-pager 2>/dev/null |
  29         { while read a b; do echo " $a"; done; };
  30 }
  31
  32 _portablectl() {
  33     local i n comps verb
  34     local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  35     local -A OPTS=(
  36         [STANDALONE]='-q --quiet --runtime --no-reload --cat --no-pager --no-legend
  37                               --no-ask-password -h --help --version'
  38         [ARG]='-p --profile --copy -H --host -M --machine'
  39     )
  40
  41     local -A VERBS=(
  42         [STANDALONE]='list'
  43         [IMAGE]='attach detach inspect is-attached set-limit'
  44         [IMAGES]='remove'
  45         [IMAGE_WITH_BOOL]='read-only'
  46     )
  47
  48     if __contains_word "$prev" ${OPTS[ARG]}; then
  49         case $prev in
  50             --profile|-p)
  51                 comps="default nonetwork strict trusted"
  52                 ;;
  53             --copy)
  54                 comps="copy symlink auto"
  55                 ;;
  56             --host|-H)
  57                 comps=$(compgen -A hostname)
  58                 ;;
  59             --machine|-M)
  60                 comps=$( __get_machines )
  61                 ;;
  62         esac
  63         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  64         return 0
  65     fi
  66
  67     if [[ "$cur" = -* ]]; then
  68         COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  69         return 0
  70     fi
  71
  72     for ((i=0; i < COMP_CWORD; i++)); do
  73         if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  74                 ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  75             verb=${COMP_WORDS[i]}
  76             break
  77         fi
  78     done
  79
  80     n=$(($COMP_CWORD - $i))
  81
  82     if [[ -z $verb ]]; then
  83         comps=${VERBS[*]}
  84     elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
  85         comps=''
  86     elif __contains_word "$verb" ${VERBS[IMAGE]}; then
  87         if [[ $n == 1 ]]; then
  88             comps=$( compgen -A file -- "$cur" )
  89             compopt -o filenames
  90         else
  91             comps=''
  92         fi
  93     elif __contains_word "$verb" ${VERBS[IMAGES]}; then
  94         comps=$( compgen -A file -- "$cur" )
  95         compopt -o filenames
  96     elif __contains_word "$verb" ${VERBS[IMAGE_WITH_BOOL]}; then
  97         if [[ $n == 1 ]]; then
  98             comps=$( compgen -A file -- "$cur" )
  99             compopt -o filenames
 100         elif [[ $n == 2 ]]; then
 101             comps='yes no'
 102         else
 103             comps=''
 104         fi
 105     fi
 106
 107     COMPREPLY=( $(compgen -o filenames -W '$comps' -- "$cur") )
 108     return 0
 109 }
 110
 111 complete -F _portablectl portablectl