shell-completion/bash/portablectl

   1 # portablectl(1) completion                             -*- shell-script -*-
   2 # SPDX-License-Identifier: LGPL-2.1-or-later
   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 <https://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 --full --max-addresses=0 --no-legend --no-pager 2>/dev/null; echo ".host"; } | \
  29         { while read a b; do echo " $a"; done; } | \
  30         sort -u
  31 }
  32
  33 _portablectl() {
  34     local i n comps verb
  35     local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  36     local -A OPTS=(
  37         [STANDALONE]='-q --quiet --runtime --no-reload --cat --no-pager --no-legend
  38                               --no-ask-password --enable --now -h --help --version'
  39         [ARG]='-p --profile --copy -H --host -M --machine --extension'
  40     )
  41
  42     local -A VERBS=(
  43         [STANDALONE]='list'
  44         [IMAGE]='attach detach reattach inspect is-attached set-limit'
  45         [IMAGES]='remove'
  46         [IMAGE_WITH_BOOL]='read-only'
  47     )
  48
  49     if __contains_word "$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=$( __get_machines )
  62                 ;;
  63             --extension)
  64                 comps=$( compgen -A file -- "$cur" )
  65                 compopt -o filenames
  66                 ;;
  67         esac
  68         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  69         return 0
  70     fi
  71
  72     if [[ "$cur" = -* ]]; then
  73         COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  74         return 0
  75     fi
  76
  77     for ((i=0; i < COMP_CWORD; i++)); do
  78         if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  79                 ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  80             verb=${COMP_WORDS[i]}
  81             break
  82         fi
  83     done
  84
  85     n=$((COMP_CWORD - i))
  86
  87     if [[ -z ${verb-} ]]; then
  88         comps=${VERBS[*]}
  89     elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
  90         comps=''
  91     elif __contains_word "$verb" ${VERBS[IMAGE]}; then
  92         if [[ $n == 1 ]]; then
  93             comps=$( compgen -A file -- "$cur" )
  94             compopt -o filenames
  95         else
  96             comps=''
  97         fi
  98     elif __contains_word "$verb" ${VERBS[IMAGES]}; then
  99         comps=$( compgen -A file -- "$cur" )
 100         compopt -o filenames
 101     elif __contains_word "$verb" ${VERBS[IMAGE_WITH_BOOL]}; then
 102         if [[ $n == 1 ]]; then
 103             comps=$( compgen -A file -- "$cur" )
 104             compopt -o filenames
 105         elif [[ $n == 2 ]]; then
 106             comps='yes no'
 107         else
 108             comps=''
 109         fi
 110     fi
 111
 112     COMPREPLY=( $(compgen -o filenames -W '$comps' -- "$cur") )
 113     return 0
 114 }
 115
 116 complete -F _portablectl portablectl