shell-completion/bash/systemd-resolve

   1 # systemd-resolve(1) completion                             -*- shell-script -*-
   2 # SPDX-License-Identifier: LGPL-2.1+
   3 #
   4 # This file is part of systemd.
   5 #
   6 # Copyright 2016 Zbigniew Jędrzejewski-Szmek
   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_interfaces(){
  29         { cd /sys/class/net && echo *; } | \
  30         while read -d' ' -r name; do
  31                 [[ "$name" != "lo" ]] && echo "$name"
  32         done
  33 }
  34
  35 _systemd-resolve() {
  36         local i comps
  37         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  38         local -A OPTS=(
  39                [STANDALONE]='-h --help --version -4 -6
  40                              --service --openpgp --tlsa --status --statistics
  41                              --reset-statistics --service-address=no --service-txt=no
  42                              --cname=no --search=no --legend=no'
  43                       [ARG]='-i --interface -p --protocol -t --type -c --class'
  44         )
  45
  46         if __contains_word "$prev" ${OPTS[ARG]}; then
  47                 case $prev in
  48                         --interface|-i)
  49                                 comps=$( __get_interfaces )
  50                                 ;;
  51                         --protocol|-p|--type|-t|--class|-c)
  52                                 comps=$( systemd-resolve --legend=no "$prev" help; echo help )
  53                                 ;;
  54                 esac
  55                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  56                 return 0
  57         fi
  58
  59         if [[ "$cur" = -* ]]; then
  60                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  61                 return 0
  62         fi
  63 }
  64
  65 complete -F _systemd-resolve systemd-resolve