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# 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 w word=$1; shift
        for w in "$@"; do
                [[ $w = "$word" ]] && return
        done
}

__journal_fields='MESSAGE MESSAGE_ID PRIORITY CODE_FILE CODE_LINE CODE_FUNC
                  ERRNO SYSLOG_FACILITY SYSLOG_IDENTIFIER SYSLOG_PID COREDUMP_EXE
                  _PID _UID _GID _COMM _EXE _CMDLINE
                  _AUDIT_SESSION _AUDIT_LOGINUID
                  _SYSTEMD_CGROUP _SYSTEMD_SESSION _SYSTEMD_UNIT _SYSTEMD_OWNER_UID
                  _SELINUX_CONTEXT _SOURCE_REALTIME_TIMESTAMP
                  _BOOT_ID _MACHINE_ID _HOSTNAME _TRANSPORT
                  _KERNEL_DEVICE _KERNEL_SUBSYSTEM
                  _UDEV_SYSNAME _UDEV_DEVNODE _UDEV_DEVLINK
                  __CURSOR __REALTIME_TIMESTAMP __CURSOR __MONOTONIC_TIMESTAMP'

_coredumpctl() {
        local i field_vals verb comps cur prev
        _get_comp_words_by_ref cur prev
        local OPTS='-h --help --version --no-pager --no-legend -o --output -F --field'

        local VERBS_LIST='list'
        local VERBS_DUMP='dump gdb'
        local VERBS="$VERBS_LIST $VERBS_DUMP"

        if __contains_word "$prev" '--output -o'; then
                comps=$( compgen -A file -- "$cur" )
                compopt -o filenames
        elif __contains_word "$prev" '--FIELD -F'; then
                comps=$( compgen -W '$__journal_fields' -- "$cur" )
        elif [[ $cur = -* ]]; then
                comps=$OPTS
        elif __contains_word "$prev" $VERBS &&
           ! __contains_word ${COMP_WORDS[COMP_CWORD-2]} '--output -o -F --field'; then
                compopt -o nospace
                COMPREPLY=( $(compgen -W '$__journal_fields' -S= -- "$cur") )
               return 0
        elif [[ $cur = *=* ]]; then
                field_vals=( $(systemd-coredumpctl -F "${prev%=}" 2>/dev/null) )
                COMPREPLY=( $(compgen -W '$field_vals' -- "${cur#=}") )
                return 0
        elif [[ $prev = '=' ]]; then
                field_vals=( $(systemd-coredumpctl -F "${COMP_WORDS[COMP_CWORD-2]}" 2>/dev/null) )
                comps=$field_vals
        else
                for ((i=0; i <= COMP_CWORD; i++)); do
                        if __contains_word "${COMP_WORDS[i]}" $VERBS; then
                                verb=${COMP_WORDS[i]}
                                break
                        fi
                done

                if [[ -z $verb ]]; then
                        comps=$VERBS
                elif __contains_word "$verb" $VERBS_LIST $VERBS_DUMP; then
                        comps=''
                fi
        fi

        COMPREPLY=( $(compgen -W '$comps' -- "$cur") )
        return 0
}
complete -F _coredumpctl systemd-coredumpctl