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 # 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_interfaces(){
  27         { cd /sys/class/net && echo *; } | \
  28         while read -d' ' -r name; do
  29                 [[ "$name" != "lo" ]] && echo "$name"
  30         done
  31 }
  32
  33 _systemd-resolve() {
  34         local i comps
  35         local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  36         local -A OPTS=(
  37                [STANDALONE]='-h --help --version --no-pager -4 -6
  38                              --service --openpgp --tlsa --status --statistics
  39                              --reset-statistics --service-address=no --service-txt=no
  40                              --cname=no --search=no --legend=no --flush-caches
  41                              --reset-server-features --revert'
  42                       [ARG]='-i --interface -p --protocol -t --type -c --class --raw
  43                              --set-dns --set-domain --set-llmnr --set-mdns --set-dnssec --set-nta'
  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                         --raw)
  55                                 comps="payload packet"
  56                                 ;;
  57                         --set-dns|--set-domain|--set-nta)
  58                                 comps=""
  59                                 ;;
  60                         --set-llmnr|--set-mdns)
  61                                 comps="yes no resolve"
  62                                 ;;
  63                         --set-dnssec)
  64                                 comps="yes no allow-downgrade"
  65                                 ;;
  66                         --set-dnsovertls)
  67                                 comps="no opportunistic"
  68                                 ;;
  69                 esac
  70                 COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  71                 return 0
  72         fi
  73
  74         if [[ "$cur" = -* ]]; then
  75                 COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  76                 return 0
  77         fi
  78 }
  79
  80 complete -F _systemd-resolve systemd-resolve