shell-completion/bash/systemd-nspawn

   1 # systemd-nspawn(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_users() {
  27     local a b
  28     loginctl list-users --no-legend --no-pager | { while read a b; do echo " $b"; done; };
  29 }
  30
  31 __get_slices() {
  32     local a b
  33     systemctl list-units -t slice --no-legend --no-pager | { while read a b; do echo " $a"; done; };
  34 }
  35
  36 __get_machines() {
  37     local a b
  38     machinectl list --no-legend --no-pager | { while read a b; do echo " $a"; done; };
  39 }
  40
  41 __get_env() {
  42     local a
  43     env | { while read a; do echo " ${a%%=*}"; done; };
  44 }
  45
  46 __get_interfaces(){
  47     local name
  48     for name in $(cd /sys/class/net && ls); do
  49         [[ "$name" != "lo" ]] && echo "$name"
  50     done
  51 }
  52
  53 __get_rlimit() {
  54     local i
  55     for i in $(systemd-nspawn --rlimit=help 2>/dev/null); do
  56         echo " ${i}="
  57     done
  58 }
  59
  60 _systemd_nspawn() {
  61     local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
  62     local i verb comps
  63
  64     local -A OPTS=(
  65         [STANDALONE]='-h --help --version --private-network -b --boot --read-only -q --quiet --share-system
  66                       --keep-unit -n --network-veth -j -x --ephemeral -a --as-pid2 --private-users-chown -U'
  67         [ARG]='-D --directory -u --user --uuid --capability --drop-capability --link-journal --bind --bind-ro
  68                       -M --machine -S --slice -E --setenv -Z --selinux-context -L --selinux-apifs-context
  69                       --register --network-interface --network-bridge --personality -i --image --tmpfs
  70                       --volatile --network-macvlan --kill-signal --template --notify-ready --root-hash --chdir
  71                       --pivot-root --property --private-users --network-namespace-path --network-ipvlan
  72                       --network-veth-extra --network-zone -p --port --system-call-filter --overlay --overlay-ro
  73                       --settings --rlimit --hostname --no-new-privileges --oom-score-adjust --cpu-affinity
  74                       --resolv-conf --timezone'
  75     )
  76
  77     _init_completion || return
  78
  79     if __contains_word "$prev" ${OPTS[ARG]}; then
  80         case $prev in
  81             --directory|-D|--template)
  82                 compopt -o nospace
  83                 comps=$(compgen -S/ -A directory -- "$cur" )
  84                 ;;
  85             --user|-u)
  86                 comps=$( __get_users )
  87                 ;;
  88             --uuid|--root-hash)
  89                 comps=''
  90                 ;;
  91             --capability)
  92                 comps='CAP_BLOCK_SUSPEND CAP_IPC_LOCK CAP_MAC_ADMIN CAP_MAC_OVERRIDE CAP_SYS_MODULE CAP_SYS_PACCT CAP_SYS_RAWIO
  93                        CAP_SYS_TIME CAP_SYSLOG CAP_WAKE_ALARM CAP_NET_ADMIN'
  94                 ;;
  95             --drop-capability)
  96                 comps='CAP_AUDIT_CONTROL CAP_AUDIT_WRITE CAP_CHOWN CAP_DAC_OVERRIDE CAP_DAC_READ_SEARCH CAP_FOWNER CAP_FSETID
  97                        CAP_IPC_OWNER CAP_KILL CAP_LEASE CAP_LINUX_IMMUTABLE CAP_MKNOD CAP_NET_ADMIN CAP_NET_BIND_SERVICE
  98                        CAP_NET_BROADCAST CAP_NET_RAW CAP_SETFCAP CAP_SETGID CAP_SETPCAP CAP_SETUID CAP_SYS_ADMIN CAP_SYS_BOOT
  99                        CAP_SYS_CHROOT CAP_SYS_NICE CAP_SYS_PTRACE CAP_SYS_RESOURCE CAP_SYS_TTY_CONFIG'
 100                 ;;
 101             --link-journal)
 102                 comps='no auto guest try-guest host try-host'
 103                 ;;
 104             --bind|--bind-ro)
 105                 compopt -o nospace -o filenames
 106                 comps=$(compgen -f -- "$cur" )
 107                 ;;
 108             --tmpfs)
 109                 compopt -o nospace
 110                 comps=$(compgen -S/ -A directory -- "$cur" )
 111                 ;;
 112             --machine|-M)
 113                 comps=$( __get_machines )
 114                 ;;
 115             --slice|-S)
 116                 comps=$( __get_slices )
 117                 ;;
 118             --setenv|-E)
 119                 comps=$( __get_env )
 120                 ;;
 121             --selinux-context|-Z)
 122                 comps=''
 123                 ;;
 124             --selinux-apifs-context|-L)
 125                 comps=''
 126                 ;;
 127             --register)
 128                 comps='yes no'
 129                 ;;
 130             --network-interface)
 131                 comps=$(__get_interfaces)
 132                 ;;
 133             --network-bridge)
 134                 comps=''
 135                 ;;
 136             --network-macvlan)
 137                 comps=''
 138                 ;;
 139             --personality)
 140                 comps='x86 x86-64'
 141                 ;;
 142             --volatile)
 143                 comps=$( systemd-nspawn --volatile=help 2>/dev/null )
 144                 ;;
 145             --image|-i)
 146                 compopt -o nospace
 147                 comps=$( compgen -A file -- "$cur" )
 148                 ;;
 149             --kill-signal)
 150                 _signals
 151                 return
 152                 ;;
 153             --notify-ready)
 154                 comps='yes no'
 155                 ;;
 156             --private-users)
 157                 comps='yes no pick'
 158                 ;;
 159             --network-namespace-path)
 160                 comps=$( compgen -A file -- "$cur" )
 161                 ;;
 162             --settings)
 163                 comps='yes no override trusted'
 164                 ;;
 165             --rlimit)
 166                 comps=$( __get_rlimit )
 167                 ;;
 168             --hostname)
 169                 comps=''
 170                 ;;
 171             --no-new-privileges)
 172                 comps='yes no'
 173                 ;;
 174             --oom-score-adjust)
 175                 comps=''
 176                 ;;
 177             --cpu-affinity)
 178                 comps=''
 179                 ;;
 180             --resolv-conf)
 181                 comps=$( systemd-nspawn --resolv-conf=help 2>/dev/null )
 182                 ;;
 183             --timezone)
 184                 comps=$( systemd-nspawn --timezone=help 2>/dev/null )
 185                 ;;
 186         esac
 187         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
 188         return 0
 189     fi
 190
 191     COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
 192 }
 193
 194 complete -F _systemd_nspawn systemd-nspawn