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