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# udevadm(8) completion                                   -*- shell-script -*-
#
# This file is part of systemd.
#
# Copyright 2010 Ran Benita
#
# 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 <http://www.gnu.org/licenses/>.

__contains_word () {
        local word=$1; shift
        for w in $*; do [[ $w = $word ]] && return 0; done
        return 1
}

__get_all_sysdevs() {
        local -a devs=(/sys/bus/*/devices/*/ /sys/class/*/*/)
        printf '%s\n' "${devs[@]%/}"
}

_udevadm() {
        local i verb comps
        local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]}
        local OPTS='-h --help --version --debug'

        local -A VERBS=(
                [INFO]='info'
                [TRIGGER]='trigger'
                [SETTLE]='settle'
                [CONTROL]='control'
                [MONITOR]='monitor'
                [HWDB]='hwdb'
                [TESTBUILTIN]='test-builtin'
                [TEST]='test'
        )

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

        if [[ -z $verb ]]; then
                comps=${VERBS[*]}

        elif __contains_word "$verb" ${VERBS[INFO]}; then
                if [[ $cur = -* ]]; then
                        comps='--help --query= --path= --name= --root --attribute-walk --export-db --cleanup-db'
                else
                        comps=$( __get_all_sysdevs )
                fi

        elif __contains_word "$verb" ${VERBS[TRIGGER]}; then
                comps='--help --verbose --dry-run --type= --action= --subsystem-match=
                       --subsystem-nomatch= --attr-match= --attr-nomatch= --property-match=
                       --tag-match= --sysname-match= --parent-match='

        elif __contains_word "$verb" ${VERBS[SETTLE]}; then
                comps='--help --timeout= --seq-start= --seq-end= --exit-if-exists= --quiet'

        elif __contains_word "$verb" ${VERBS[CONTROL]}; then
                comps='--help --exit --log-priority= --stop-exec-queue --start-exec-queue
                       --reload --property= --children-max= --timeout='

        elif __contains_word "$verb" ${VERBS[MONITOR]}; then
                comps='--help --kernel --udev --property --subsystem-match= --tag-match='

        elif __contains_word "$verb" ${VERBS[HWDB]}; then
                comps='--help --update --test='

        elif __contains_word "$verb" ${VERBS[TEST]}; then
                if [[ $cur = -* ]]; then
                        comps='--help --action='
                else
                        comps=$( __get_all_sysdevs )
                fi

        elif __contains_word "$verb" ${VERBS[TESTBUILTIN]}; then
                      comps='blkid btrfs firmware hwdb input_id kmod net_id path_id usb_id uaccess'
        fi

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

complete -F _udevadm udevadm