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c839b729c5
Pass the partial name of the unit file to list-unit-files and list-units. This allows for faster completion, since systemctl does not need to list all the unit files. For reference: - time systemctl list-unit-files -> ~200ms - time systemctl list-unit-files netctl* -> ~15ms - time systemctl list-units -> ~5ms - time systemctl list-units netctl* -> ~5ms While the list-units time itself is unaffected, now a shorter list is produced. Thus as we pass it to `systemctl show' (via __filter_units_by_properties) the execution time will be decreased even further. v2: Update list-units hunk in commit message, add quotes around $2* v3: Remove funky indentation, quote all $cur instances Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
305 lines
13 KiB
Bash
305 lines
13 KiB
Bash
# systemctl(1) completion -*- shell-script -*-
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# SPDX-License-Identifier: LGPL-2.1+
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#
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# This file is part of systemd.
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#
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# Copyright 2010 Ran Benita
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__systemctl() {
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local mode=$1; shift 1
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systemctl $mode --full --no-legend --no-pager "$@" 2>/dev/null
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}
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__systemd_properties() {
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@rootlibexecdir@/systemd --dump-bus-properties
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}
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__contains_word () {
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local w word=$1; shift
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for w in "$@"; do
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[[ $w = "$word" ]] && return
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done
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}
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__filter_units_by_property () {
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local mode=$1 property=$2 value=$3 ; shift 3
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local units=("$@")
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local props i
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IFS=$'\n' read -rd '' -a props < \
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<(__systemctl $mode show --property "$property" -- "${units[@]}")
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for ((i=0; $i < ${#units[*]}; i++)); do
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if [[ "${props[i]}" = "$property=$value" ]]; then
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echo " ${units[i]}"
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fi
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done
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}
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__filter_units_by_properties () {
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local mode=$1 properties=$2 values=$3 ; shift 3
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local units=("$@")
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local props i j conditions=()
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IFS=$'\n' read -rd '' -a props < \
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<(__systemctl $mode show --property "$properties" -- "${units[@]}")
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IFS=$',' read -r -a properties < <(echo $properties)
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IFS=$',' read -r -a values < <(echo $values)
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for ((i=0; i < ${#properties[*]}; i++)); do
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for ((j=0; j < ${#properties[*]}; j++)); do
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if [[ ${props[i]%%=*} == ${properties[j]} ]]; then
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conditions+=( "${properties[j]}=${values[j]}" )
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fi
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done
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done
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for ((i=0; i < ${#units[*]}; i++)); do
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for ((j=0; j < ${#conditions[*]}; j++)); do
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if [[ "${props[i * ${#conditions[*]} + j]}" != "${conditions[j]}" ]]; then
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break
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fi
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done
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if (( j == ${#conditions[*]} )); then
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echo " ${units[i]}"
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fi
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done
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}
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__get_all_units () { { __systemctl $1 list-unit-files; __systemctl $1 list-units --all; } \
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| { while read -r a b; do echo " $a"; done; }; }
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__get_non_template_units() { { __systemctl $1 list-unit-files; __systemctl $1 list-units --all; } \
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| { while read -r a b; do [[ $a =~ @\. ]] || echo " $a"; done; }; }
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__get_template_names () { __systemctl $1 list-unit-files "$2*" \
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| { while read -r a b; do [[ $a =~ @\. ]] && echo " ${a%%@.*}@"; done; }; }
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__get_active_units () { __systemctl $1 list-units "$2*" \
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| { while read -r a b; do echo " $a"; done; }; }
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__get_startable_units () {
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# find startable inactive units
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__filter_units_by_properties $1 ActiveState,CanStart inactive,yes $(
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{ __systemctl $1 list-unit-files --state enabled,enabled-runtime,linked,linked-runtime,static,indirect,disabled,generated,transient "$2*" | \
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{ while read -r a b; do [[ $a =~ @\. ]] || echo " $a"; done; }
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__systemctl $1 list-units --state inactive,failed "$2*" | \
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{ while read -r a b c; do [[ $b == "loaded" ]] && echo " $a"; done; }
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} | sort -u )
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}
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__get_restartable_units () {
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# filter out masked and not-found
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__filter_units_by_property $1 CanStart yes $(
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__systemctl $1 list-unit-files --state enabled,disabled,static "$2*" | \
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{ while read -r a b; do [[ $a =~ @\. ]] || echo " $a"; done; }
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__systemctl $1 list-units "$2*" | \
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{ while read -r a b; do echo " $a"; done; } )
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}
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__get_failed_units () { __systemctl $1 list-units "$2*" \
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| { while read -r a b c d; do [[ $c == "failed" ]] && echo " $a"; done; }; }
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__get_enabled_units () { __systemctl $1 list-unit-files "$2*" \
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| { while read -r a b c ; do [[ $b == "enabled" ]] && echo " $a"; done; }; }
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__get_disabled_units () { __systemctl $1 list-unit-files "$2*" \
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| { while read -r a b c ; do [[ $b == "disabled" ]] && echo " $a"; done; }; }
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__get_masked_units () { __systemctl $1 list-unit-files "$2*" \
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| { while read -r a b c ; do [[ $b == "masked" ]] && echo " $a"; done; }; }
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__get_all_unit_files () { { __systemctl $1 list-unit-files; } | { while read -r a b; do echo " $a"; done; }; }
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__get_machines() {
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local a b
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{ machinectl list-images --no-legend --no-pager; machinectl list --no-legend --no-pager; } | \
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{ while read a b; do echo " $a"; done; }
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}
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_systemctl () {
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local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
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local i verb comps mode
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local -A OPTS=(
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[STANDALONE]='--all -a --reverse --after --before --defaults --force -f --full -l --global
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--help -h --no-ask-password --no-block --no-legend --no-pager --no-reload --no-wall --now
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--quiet -q --system --user --version --runtime --recursive -r --firmware-setup
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--show-types -i --ignore-inhibitors --plain --failed --value --fail --dry-run --wait'
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[ARG]='--host -H --kill-who --property -p --signal -s --type -t --state --job-mode --root
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--preset-mode -n --lines -o --output -M --machine --message'
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)
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if __contains_word "--user" ${COMP_WORDS[*]}; then
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mode=--user
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elif __contains_word "--global" ${COMP_WORDS[*]}; then
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mode=--user
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else
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mode=--system
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fi
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if __contains_word "$prev" ${OPTS[ARG]}; then
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case $prev in
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--signal|-s)
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_signals
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return
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;;
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--type|-t)
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comps=$(__systemctl $mode -t help)
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;;
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--state)
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comps=$(__systemctl $mode --state=help)
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;;
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--job-mode)
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comps='fail replace replace-irreversibly isolate
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ignore-dependencies ignore-requirements flush'
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;;
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--kill-who)
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comps='all control main'
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;;
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--root)
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comps=$(compgen -A directory -- "$cur" )
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compopt -o filenames
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;;
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--host|-H)
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comps=$(compgen -A hostname)
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;;
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--property|-p)
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comps=$(__systemd_properties)
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;;
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--preset-mode)
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comps='full enable-only disable-only'
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;;
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--output|-o)
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comps='short short-full short-iso short-iso-precise short-precise short-monotonic short-unix verbose export json
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json-pretty json-sse cat'
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;;
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--machine|-M)
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comps=$( __get_machines )
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;;
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esac
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COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
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return 0
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fi
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if [[ "$cur" = -* ]]; then
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COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
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return 0
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fi
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local -A VERBS=(
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[ALL_UNITS]='cat mask'
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[NONTEMPLATE_UNITS]='is-active is-failed is-enabled status show preset help list-dependencies edit set-property revert'
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[ENABLED_UNITS]='disable'
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[DISABLED_UNITS]='enable'
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[REENABLABLE_UNITS]='reenable'
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[FAILED_UNITS]='reset-failed'
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[STARTABLE_UNITS]='start'
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[STOPPABLE_UNITS]='stop condstop kill try-restart condrestart'
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[ISOLATABLE_UNITS]='isolate'
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[RELOADABLE_UNITS]='reload condreload try-reload-or-restart force-reload'
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[RESTARTABLE_UNITS]='restart reload-or-restart'
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[TARGET_AND_UNITS]='add-wants add-requires'
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[MASKED_UNITS]='unmask'
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[JOBS]='cancel'
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[ENVS]='set-environment unset-environment import-environment'
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[STANDALONE]='daemon-reexec daemon-reload default
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emergency exit halt hibernate hybrid-sleep
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suspend-then-hibernate kexec list-jobs list-sockets
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list-timers list-units list-unit-files poweroff
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reboot rescue show-environment suspend get-default
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is-system-running preset-all'
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[FILE]='link switch-root'
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[TARGETS]='set-default'
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[MACHINES]='list-machines'
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)
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for ((i=0; i < COMP_CWORD; i++)); do
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if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
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! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
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verb=${COMP_WORDS[i]}
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break
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fi
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done
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if [[ -z $verb ]]; then
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comps="${VERBS[*]}"
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elif __contains_word "$verb" ${VERBS[ALL_UNITS]}; then
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comps=$( __get_all_units $mode )
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[NONTEMPLATE_UNITS]}; then
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comps=$( __get_non_template_units $mode )
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[ENABLED_UNITS]}; then
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comps=$( __get_enabled_units $mode "$cur" )
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[DISABLED_UNITS]}; then
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comps=$( __get_disabled_units $mode "$cur";
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__get_template_names $mode "$cur")
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[REENABLABLE_UNITS]}; then
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comps=$( __get_disabled_units $mode "$cur";
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__get_enabled_units $mode "$cur";
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__get_template_names $mode "$cur")
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[STARTABLE_UNITS]}; then
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comps=$( __get_startable_units $mode "$cur";
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__get_template_names $mode "$cur")
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[RESTARTABLE_UNITS]}; then
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comps=$( __get_restartable_units $mode "$cur";
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__get_template_names $mode "$cur")
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[STOPPABLE_UNITS]}; then
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comps=$( __filter_units_by_property $mode CanStop yes \
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$( __get_active_units $mode "$cur" ) )
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[RELOADABLE_UNITS]}; then
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comps=$( __filter_units_by_property $mode CanReload yes \
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$( __get_active_units $mode "$cur" ) )
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[ISOLATABLE_UNITS]}; then
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comps=$( __filter_units_by_property $mode AllowIsolate yes \
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$( __get_all_units $mode ) )
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[FAILED_UNITS]}; then
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comps=$( __get_failed_units $mode "$cur" )
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[MASKED_UNITS]}; then
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comps=$( __get_masked_units $mode "$cur" )
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[TARGET_AND_UNITS]}; then
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if __contains_word "$prev" ${VERBS[TARGET_AND_UNITS]} \
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|| __contains_word "$prev" ${OPTS[STANDALONE]}; then
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comps=$( __systemctl $mode list-unit-files --type target --all \
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| { while read -r a b; do echo " $a"; done; } )
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else
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comps=$( __get_all_unit_files $mode )
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fi
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[STANDALONE]}; then
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comps=''
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elif __contains_word "$verb" ${VERBS[JOBS]}; then
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comps=$( __systemctl $mode list-jobs | { while read -r a b; do echo " $a"; done; } )
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elif __contains_word "$verb" ${VERBS[ENVS]}; then
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comps=$( __systemctl $mode show-environment \
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| while read -r line; do echo " ${line%%=*}="; done )
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compopt -o nospace
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elif __contains_word "$verb" ${VERBS[FILE]}; then
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comps=$( compgen -A file -- "$cur" )
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compopt -o filenames
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elif __contains_word "$verb" ${VERBS[TARGETS]}; then
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comps=$( __systemctl $mode list-unit-files --type target --full --all \
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| { while read -r a b; do echo " $a"; done; } )
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fi
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COMPREPLY=( $(compgen -o filenames -W '$comps' -- "$cur") )
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return 0
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}
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complete -F _systemctl systemctl
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