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# /usr/share/bash-completion/completions/debdiff
# Bash command completion for ‘debdiff(1)’.
# Documentation: ‘bash(1)’, section “Programmable Completion”.

# This is free software, and you are welcome to redistribute it under
# certain conditions; see the end of this file for copyright
# information, grant of license, and disclaimer of warranty.

_have debdiff &&
_debdiff () {
    local cur prev words cword
    _init_completion || return

    local i
    local command_name=debdiff
    local options=(
        -h --help -v --version
        -q --quiet
        -d --dirs --nodirs
        -w --ignore-space
        --diffstat --no-diffstat
        --auto-ver-sort --no-auto-ver-sort
        --unpack-tarballs --no-unpack-tarballs
        --control --nocontrol --controlfiles
        --wdiff-source-control --no-wdiff-source-control --wp --wl --wt
        --show-moved --noshow-moved --renamed
        --debs-dir
        --from
        --move --move-regex
        --exclude
    )

    local file_list_mode=normal
    local -i move_from=-1
    local -i move_to=-1

    unset COMPREPLY

    case "$prev" in
        "$command_name")
            options+=( --noconf --no-conf )
            ;;

        --debs-dir)
            COMPREPLY=( $( compgen -A directory -- "$cur" ) )
            ;;

    esac

    if [[ -v COMPREPLY ]] ; then
        return 0
    fi

    for (( i=1; i<${#words[@]}; i++ )); do
        if [[ $file_list_mode == @(deb|dsc|changes) ]]; then
            if (( i == ${#words[@]}-1 )); then
                break
            else
                COMPREPLY=()
                return 0
            fi
        fi
        if (( ${move_from} == -1  && ${move_to} == -1 )); then
            file_list_mode=normal
        elif (( ${move_from} >= 0 && ${move_to} == -1 )); then
            file_list_mode=from
        elif (( ${move_from} >= 0 && ${move_to} >= 0 && ${move_to} < ${move_from} )); then
            file_list_mode=to
        else
            COMPREPLY=()
            return 0
        fi
        if [[ $file_list_mode == normal && ${words[i]} == --from ]]; then
            move_from=0
            file_list_mode=from
        elif [[ $file_list_mode == normal && ${words[i]} == *.deb ]]; then
            file_list_mode=deb
        elif [[ $file_list_mode == normal && ${words[i]} == *.udeb ]]; then
            file_list_mode=deb
        elif [[ $file_list_mode == normal && ${words[i]} == *.dsc ]]; then
            file_list_mode=dsc
        elif [[ $file_list_mode == normal && ${words[i]} == *.changes ]]; then
            file_list_mode=changes
        elif [[ $file_list_mode == from && ${words[i]} == *.deb ]]; then
            (( ++move_from ))
        elif [[ $file_list_mode == from && ${words[i]} == *.udeb ]]; then
            (( ++move_from ))
        elif [[ $file_list_mode == from && ${words[i]} == --to ]]; then
            move_to=0
            file_list_mode=to
        elif [[ $file_list_mode = to && ${words[i]} == *.deb ]]; then
            (( ++move_to ))
        elif [[ $file_list_mode = to && ${words[i]} == *.udeb ]]; then
            (( ++move_to ))
        fi
    done

    case $file_list_mode in
        normal)
            if [[ $prev == --debs-dir ]]; then
                COMPREPLY=( $( compgen -G "${cur}*" ) )
                compopt -o dirnames
            elif [[ $cur == -* ]]; then
                COMPREPLY=( $( compgen -W "${options[*]}" -- "$cur" ) )
            else
                COMPREPLY=( $( compgen -G "${cur}*.@(deb|udeb|dsc|changes)" ) )
                compopt -o filenames
                compopt -o plusdirs
            fi
            ;;
        deb|from|to)
            COMPREPLY=( $( compgen -G "${cur}*.deb" "${cur}*.udeb" ) )
            if (( $move_from > 0 && $move_to < 0 )) ; then
                COMPREPLY+=( $( compgen -W "--to" -- "$cur" ) )
            fi
            compopt -o filenames
            compopt -o plusdirs
            ;;
        dsc)
            COMPREPLY=( $( compgen -G "${cur}*.dsc" ) )
            compopt -o filenames
            compopt -o plusdirs
            ;;
        changes)
            COMPREPLY=( $( compgen -G "${cur}*.changes" ) )
            compopt -o filenames
            compopt -o plusdirs
            ;;
        *)
            COMPREPLY=( $( compgen -W "${options[*]}" -- "$cur" ) )
            ;;
    esac

    return 0

} &&
complete -F _debdiff debdiff


# Copyright © 2016–2017 Ben Finney <ben+debian@benfinney.id.au>
# Copyright © 2015 Nicholas Bamber <nicholas@periapt.co.uk>
#
# This is free software: you may copy, modify, and/or distribute this work
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; version 2 of that license or any later version.
# No warranty expressed or implied. See the file ‘LICENSE.GPL-2’ for details.

# Local variables:
# coding: utf-8
# mode: shell-script
# indent-tabs-mode: nil
# End:
# vim: fileencoding=utf-8 filetype=sh expandtab shiftwidth=4 :