削除されたファイルをPacmanのデータベースから調べるスクリプト

checksys

#!/usr/bin/env bash
#
# Yamada Hayao <hayao@fascode.net> <Twitter: @Hayao0819>
# (c) 2019-2021 Fascode Network
#
#================================================================
#
#         DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
#                     Version 2, December 2004 
#
#  Copyright (C) 2004 Sam Hocevar <sam@hocevar.net> 
#
#  Everyone is permitted to copy and distribute verbatim or modified 
#  copies of this license document, and changing it is allowed as long 
#  as the name is changed. 
#
#             DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE 
#    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 
#
#   0. You just DO WHAT THE FUCK YOU WANT TO.
#
#================================================================
#
# shellcheck disable=SC1102,SC2120,SC2155,SC2294
#

set -Eeub
max_process=0 output="" verbose=false
readarray -t pkglist < <(pacman -Qq)

_help() {
    echo -e "usage ${0} [options] [command]\n"
    echo " General options:"
    echo "    -p | --pkg [pkg1,pkg2 ...] Set the list of package to check"
    echo "    -m | --max [int]           Set max process number (set 0 to unlimit)"
    echo "    -l | --log [path]          Set the path to output the result"
    echo "    -v | --verbose             Enable verbose log"
    echo "    -h | --help                This help message"
    exit 0
}

function get_proc_count () { find "${temp_dir}" -mindepth 1 -not -name "done" -printf "%f\n"| wc -l; }
function pkgcnt() { local _cnt="$(cat "${_pkgcntfile}")" ; [[ "${1-""}" = "+" ]] || { [[ -n "${_cnt}" ]] || echo 0 && echo "${_cnt}"; return 0; } && echo "$(( _cnt + 1 ))" > "${_pkgcntfile}"; }

_checkpkg(){
    lock_file="${temp_dir}/$(uuidgen)" && touch "${lock_file}" && pkgcnt "+"
    [[ "${verbose}" = true ]] && echo "Start checking ${1} ... (Running $(get_proc_count)) " >&2
    while read -r file;do
        { [[ ! -e "${file}" ]] && [[ ! -L "${file}" ]]; } && echo "${1}: ${file}" >> "${temp}"
    done < <(
        insection=false && while read -r line; do
            case "${line}" in
                "%FILES%") insection=true ;;
                "%"*"%") insection=false ;;
                *) # { [[ "${verbose}" = true ]] && echo Checking "/${line}" >&2; } &
                   { [[ "${insection}" = true ]] && [[ ! "${line}" = *"/" ]]; } && echo "/${line}" ;;
            esac
        done < "$(pacman-conf "DBPath")/local/$(pacman -Q "${1}" | tr " " "-")/files" &
    )
    rate="$(( $(pkgcnt) * 10000 / ${#pkglist[@]}))" && f="$((100 + rate % 100))" && echo "$((rate / 100)).${f#1}% Done $(pkgcnt) Packages ${1}" >&2 && rm "${lock_file}"
}

#-- Parse args --#
OPTS=("h" "l:" "m:" "p:" "v" ) OPTL=("help" "log" "max:" "pkg:" "verbose") GETOPT=(-o "$(printf "%s," "${OPTS[@]}")" -l "$(printf "%s," "${OPTL[@]}")" -- "${@}")
getopt -Q "${GETOPT[@]}" || exit 1 && readarray -t OPT < <(getopt "${GETOPT[@]}")
eval set -- "${OPT[@]}" && unset OPT OPTS OPTL GETOPT
while true; do
    case "${1}" in
        -l | --log    ) output="${2}"                                        && shift 2 ;;
        -m | --max    ) max_process="${2}"                                   && shift 2 ;;
        -h | --help   ) _help                                                && exit 0  ;;
        -v | --verbose) verbose=true                                         && shift 1 ;;
        -p | --pkg    ) readarray -t pkglist < <(echo "${2}" | tr "," "\n")  && shift 2 ;;
        --            ) shift 1                                              && break   ;;
    esac
done

#-- Prepare --#
function _trap(){
    local _exit="${?}" && echo -e "Exception occured" >&2 && rm -rf "${temp}" "${temp_dir}"
    kill "$(jobs -p)" >/dev/null 2>&1
    exit "${_exit}"
}
trap '_trap' 1 2 3 15
temp_dir="$(mktemp -d)" temp="$(mktemp)" _pkgcntfile="${temp_dir}/pkgcount" && touch "${_pkgcntfile}"
pacman -Qq "${pkglist[@]}" 1> /dev/null

#-- Start --#
if [[ "${max_process}" == "0" ]] || [[ "${#pkglist[@]}" -lt "${max_process}" ]]; then
    for pkg in "${pkglist[@]}"; do
        _checkpkg "${pkg}" 
    done
else
    for pkg in "${pkglist[@]}"; do
        while true; do
            [[ "$(get_proc_count)" -lt "${max_process}" ]] || sleep 1 && { _checkpkg "${pkg}" & break; }
        done
    done
fi

#-- Exit --#
echo "Waiting for all processing to complete" >&2 && wait
[[ -n "${output-""}" ]] && cat "${temp}" > "${output}"
{ cat "${temp}" && rm -fr "${temp_dir}"; } || exit 0