/etc/bash_completion.d/lintian is in bash-completion 1:1.3-1ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 | # -*- mode: shell-script; sh-basic-offset: 8; indent-tabs-mode: t -*-
# ex: ts=8 sw=8 noet filetype=sh
#
# bash completion for lintian(1) and lintian-info(1)
have lintian && {
_lintian_tags() {
    local match search tags
    tags=$( grep -e ^Tag /usr/share/lintian/checks/*.desc | cut -d\  -f2 )
    if [[ "$cur" == *, ]]; then
        search=${cur//,/ }
        for item in $search; do
            match=$(grep -nE "^Tag: $item$" /usr/share/lintian/checks/*.desc \
                    | cut -d: -f1 )
            tags=$( echo $tags | sed -e "s/\<$item\>//g" )
        done
        COMPREPLY=( ${COMPREPLY[@]} $(compgen -W "$tags") )
    elif [[ "$cur" == *,* ]]; then
        COMPREPLY=( ${COMPREPLY[@]} $(compgen -P "${cur%,*}," -W "$tags" -- \
                                      "${cur##*,}") )
    else
        COMPREPLY=( ${COMPREPLY[@]} $(compgen -W "$tags" -- "$cur") )
    fi
    return 0
}
_lintian_checks() {
    local match search todisable checks
    checks=$(grep -e ^Check-Script -e ^Abbrev \
             /usr/share/lintian/checks/*.desc | cut -d\  -f2 )
    if [[ "$cur" == *, ]]; then
        search=${cur//,/ }
        for item in $search; do
            match=$(grep -nE "^(Check-Script|Abbrev): $item$" \
                    /usr/share/lintian/checks/*.desc | cut -d: -f1 )
            todisable=$(grep -e ^Check-Script -e ^Abbrev $match | \
                        cut -d\  -f2 )
            for name in $todisable; do
                checks=$( echo $checks | sed -e "s/\<$name\>//g" )
            done
        done
        COMPREPLY=( ${COMPREPLY[@]} $(compgen -W "$checks") )
    elif [[ "$cur" == *,* ]]; then
        COMPREPLY=( ${COMPREPLY[@]} $(compgen -P "${cur%,*}," -W "$checks" \
                                      -- "${cur##*,}") )
    else
        COMPREPLY=( ${COMPREPLY[@]} $(compgen -W "$checks" -- "$cur") )
    fi
    return 0
}
_lintian_infos() {
    local match search infos
    infos=$(grep -e ^Collector /usr/share/lintian/collection/*.desc \
            | cut -d\  -f2 )
    if [[ "$cur" == *, ]]; then
        search=${cur//,/ }
        for item in $search; do
            match=$( grep -nE "^Collector: $item$" \
                    /usr/share/lintian/collection/*.desc | cut -d: -f1 )
            infos=$( echo $infos | sed -e "s/\<$item\>//g" )
        done
        COMPREPLY=( ${COMPREPLY[@]} $(compgen -W "$infos") )
    elif [[ "$cur" == *,* ]]; then
        COMPREPLY=( ${COMPREPLY[@]} $(compgen -P "${cur%,*}," -W "$infos" \
                                      -- "${cur##*,}") )
    else
        COMPREPLY=( ${COMPREPLY[@]} $(compgen -W "$infos" -- "$cur") )
    fi
    return 0
}
_lintian_arches() {
    return 0
}
_lintian() {
    local cur prev action lint_actions general_opts behaviour_opts \
          configuration_opts selection_opts
    _get_comp_words_by_ref cur prev
    lint_actions="--setup-lab --remove-lab --check --check-part --tags \
                  --tags-from-file --ftp-master-rejects --dont-check-part \
                  --unpack --remove"
    general_opts="--help --version --print-version --verbose --debug --quiet"
    behaviour_opts="--info --display-info --display-experimental --pedantic \
                    --display-level --suppress-tags --unpack-level \
                    --suppress-tags-from-file --no-override --show-overrides \
                    --color --unpack-info --md5sums --checksums --allow-root \
                    --fail-on-warnings --keep-lab"
    configuration_opts="--cfg --lab --archivedir --dist --area --section \
                        --arch --root"
    selection_opts="--all --binary --source --udeb --packages-file"
    if [[ "$prev" = -* ]]; then
        case $prev in
            -C|--check-part|-X|--dont-check-part)
                _lintian_checks
                ;;
            -T|--tags|--suppress-tags)
                _lintian_tags
                ;;
            --tags-from-file|--suppress-tags-from-file|--cfg|-p|\
            --packages-file)
                _filedir
                ;;
            --lab|--archivedir|--dist|--root)
                _filedir -d
                ;;
            -l|--unpack-level)
                COMPREPLY=($(compgen -W "0 none 1 basic 2 contents" -- \
                             "$cur"))
                ;;
            --color)
                COMPREPLY=($(compgen -W "never always auto html" -- "$cur"))
                ;;
            -U|--unpack-info)
                _lintian_infos
                ;;
            --area|--section)
                COMPREPLY=($(compgen -W "main contrib non-free" -- "$cur"))
                ;;
            --arch)
                ;;
        esac
    fi
    case "$cur" in
        --*)
            COMPREPLY=($(compgen -W "$lint_actions $general_opts \
                         $behaviour_opts $configuration_opts" -- "$cur"))
            ;;
        *,)
            # If we're here, the user is trying to complete on
            # --action tag,tag,<TAB>
            # Only few actions permit that, re-complete them now.
            echo $prev
            case "$prev" in
                -C|--check-part|-X|--dont-check-part)
                    _lintian_checks
                    ;;
                -T|--tags|--suppress-tags)
                    _lintian_tags
                    ;;
                -U|--unpack-info)
                    _lintian_infos
                    ;;
            esac
            ;;
        *)
            _filedir '@(?(u)deb|changes|dsc)'
            ;;
    esac
    return 0
}
_lintian_info() {
    local cur prev
    _get_comp_words_by_ref cur prev
    case "$prev" in
        -t|--tags)
            _lintian_tags
            return 0
            ;;
    esac
    case "$cur" in
        --*)
            COMPREPLY=($(compgen -W "--annotate --help --tags" -- "$cur"))
            ;;
        *)
            _filedir
            ;;
    esac
    return 0
}
complete -F _lintian lintian
complete -F _lintian_info lintian-info
}
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