shell-completion/bash/systemd-sysupdate - main - niceSOFT/systemd

shell-completion/bash/systemd-sysupdate
138 строк4 KB
Lennart Poettering
shell-completion: add shell completion for systemd-sysupdate
15 июл 2026, 14:27
15 июл 2026, 14:271cd217e
# shellcheck shell=bash
# systemd-sysupdate(8) completion                     -*- shell-script -*-
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# systemd is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with systemd; If not, see <https://www.gnu.org/licenses/>.

__contains_word() {
    local w word=$1; shift
    for w in "$@"; do
        [[ $w = "$word" ]] && return
    done
}

# List the components or features known to the installation. The argument is both
# the verb to invoke ('components' or 'features') and the JSON array key to extract.
__systemd_sysupdate_list() {
    systemd-sysupdate --no-pager --json=short "$1" 2>/dev/null |
        sed -n "s/.*\"$1\":\[\([^]]*\)\].*/\1/p" | tr ',' '\n' | tr -d '"'
}

_systemd-sysupdate() {
    local i verb comps
    local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]} words cword
    local -A OPTS=(
        [STANDALONE]='-h --help --version
                     --no-pager
                     --no-legend
                     -A --component-all
                     -S --component-suggested
                     -a --feature-all
                     -s --feature-suggested
                     --reboot
                     --offline'
        [ARG]='-C --component
               --definitions
               --root
               --image
               --image-policy
               --transfer-source
               -m --instances-max
               --sync
               --verify
               --cleanup
               --json'
    )

    local -A VERBS=(
        [STANDALONE]='check-new
                      vacuum
                      cleanup
                      pending
                      reboot
                      components'
        [VERSION]='list
                   update
                   acquire'
        [FEATURE]='features
                   enable-feature
                   disable-feature'
        [COMPONENT]='enable-component
                     disable-component'
    )

    _init_completion || return

    if __contains_word "$prev" ${OPTS[ARG]}; then
        case $prev in
            -C|--component)
                comps=$( __systemd_sysupdate_list components )
                ;;
            --definitions|--root|--transfer-source)
                comps=$(compgen -A directory -- "$cur" )
                compopt -o dirnames
                ;;
            --image)
                comps=$(compgen -A file -- "$cur" )
                compopt -o filenames
                ;;
            --image-policy)
                comps=''
                ;;
            --instances-max|-m)
                comps=''
                ;;
            --sync|--verify|--cleanup)
                comps='no yes'
                ;;
            --json)
                comps='pretty short off'
                ;;
        esac
        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
        return 0
    fi

    if [[ "$cur" = -* ]]; then
        COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") )
        return 0
    fi

    for ((i=0; i < COMP_CWORD; i++)); do
        if __contains_word "${COMP_WORDS[i]}" ${VERBS[*]} &&
                ! __contains_word "${COMP_WORDS[i-1]}" ${OPTS[ARG]}; then
            verb=${COMP_WORDS[i]}
            break
        fi
    done

    if [[ -z ${verb-} ]]; then
        comps=${VERBS[*]}
    elif __contains_word "$verb" ${VERBS[FEATURE]}; then
        comps=$( __systemd_sysupdate_list features )
    elif __contains_word "$verb" ${VERBS[COMPONENT]}; then
        comps=$( __systemd_sysupdate_list components )
    else
        # STANDALONE verbs take no argument, VERSION verbs take a remote version
        # that cannot be enumerated locally.
        comps=''
    fi

    COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
    return 0
}

complete -F _systemd-sysupdate systemd-sysupdate