shell-completion/bash/machinectl

   1 # shellcheck shell=bash
   2 # machinectl(1) completion                      -*- shell-script -*-
   3 # SPDX-License-Identifier: LGPL-2.1-or-later
   4 #
   5 # This file is part of systemd.
   6 #
   7 # systemd 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 # systemd 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 systemd; If not, see <https://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-images --full --no-legend --no-pager 2>/dev/null; machinectl list --full --max-addresses=0 --no-legend --no-pager 2>/dev/null; echo ".host"; } | \
  30         { while read a b; do echo " $a"; done; } | \
  31         sort -u
  32 }
  33
  34 _machinectl() {
  35     local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]} words cword
  36     local i verb comps
  37
  38     local -A OPTS=(
  39         [STANDALONE]='--all -a -l --full --help -h --no-ask-password --no-legend --no-pager --version --value
  40                       --mkdir --read-only --force -q --quiet'
  41         [ARG]='--host -H --kill-whom -M --machine --property -p --signal -s --uid -E --setenv -n --lines
  42                       -o --output --verify --format --max-addresses'
  43     )
  44
  45     local -A VERBS=(
  46         [STANDALONE]='list list-images clean pull-tar pull-raw list-transfers cancel-transfer import-fs'
  47         [MACHINES]='status show start stop login shell enable disable poweroff reboot terminate kill bind
  48                     copy-to copy-from image-status show-image clone rename read-only remove set-limit
  49                     export-tar export-raw'
  50         [FILE]='import-tar import-raw'
  51     )
  52
  53     _init_completion || return
  54
  55     for ((i=0; i <= COMP_CWORD; i++)); do
  56         if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
  57                 ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
  58             verb=${COMP_WORDS[i]}
  59             break
  60         fi
  61     done
  62
  63     if __contains_word "$prev" ${OPTS[ARG]}; then
  64         case $prev in
  65             --signal|-s)
  66                 _signals
  67                 return
  68                 ;;
  69             --kill-whom|--kill-who)
  70                 comps='all leader'
  71                 ;;
  72             --host|-H)
  73                 comps=$(compgen -A hostname)
  74                 ;;
  75             --machine|-M)
  76                 comps=$( __get_machines )
  77                 ;;
  78             --property|-p)
  79                 comps=''
  80                 ;;
  81             --output|-o)
  82                 comps=$( machinectl --output=help 2>/dev/null )
  83                 ;;
  84             --verify)
  85                 comps=$( machinectl --verify=help 2>/dev/null )
  86                 ;;
  87             --format)
  88                 comps='uncompressed xz gzip bzip2 zstd'
  89                 ;;
  90         esac
  91         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
  92         return 0
  93     fi
  94
  95     if [[ "$cur" = -* ]]; then
  96         COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
  97         return 0
  98     fi
  99
 100     if [[ -z ${verb-} ]]; then
 101         comps=${VERBS[*]}
 102
 103     elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
 104         comps=''
 105
 106     elif __contains_word "$verb" ${VERBS[MACHINES]}; then
 107         comps=$( __get_machines )
 108
 109     elif __contains_word "$verb" ${VERBS[FILE]}; then
 110         if (( COMP_CWORD == i + 1 )); then # first argument after verb
 111             comps=$(compgen -f -- "$cur")
 112             compopt -o filenames
 113         else
 114             comps=''
 115         fi
 116     fi
 117
 118     COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 119     return 0
 120 }
 121
 122 complete -F _machinectl machinectl