wfa

   1 #!/usr/bin/env bash
   2
   3 set -eu
   4
   5 msgdebug=false
   6 nocolor=false
   7 debug=false
   8 pacman_args=""
   9 operation="none"
  10 force_aur=false
  11 noconfirm=false
  12
  13 wfa_version="0.1"
  14 aururl="https://aur.archlinux.org/"
  15 pacman_config="/etc/pacman.conf"
  16
  17 # メッセージ出力の制御
  18 # https://github.com/FascodeNet/alterlinux/blob/dev/tools/msg.sh の変数名にアンダーバーを追加し関数化
  19 msg() {
  20     local OPTIND OPTARG arg
  21
  22     local _appname="msg.sh"
  23     local _bash_debug=false
  24     local _nocolor=false
  25     local _echo_opts=""
  26     local _message=""
  27     local _msg_type="info"
  28     local _msg_label=""
  29     local _label_space="7"
  30     local _adjust_chr=" "
  31     local _customized_label=false
  32     local _customized_label_color=false
  33     local _nolabel=false
  34     local _noappname=false
  35     local _noadjust=false
  36     local _output="stdout"
  37
  38     _help() {
  39         echo "usage ${0} [option] [type] [message]"
  40         echo
  41         echo "Display a message with a colored app name and message type label"
  42         echo
  43         echo " General type:"
  44         echo "    info                      General message"
  45         echo "    warn                      Warning message"
  46         echo "    error                     Error message"
  47         echo "    debug                     Debug message"
  48         echo
  49         echo " General options:"
  50         echo "    -a [name]                 Specify the app name"
  51         echo "    -c [character]            Specify the character to adjust the label"
  52         echo "    -l [label]                Specify the label."
  53         echo "    -n | --nocolor            No output colored output"
  54         echo "    -o [option]               Specify echo options"
  55         echo "    -r [color]                Specify the color of label"
  56         echo "    -s [number]               Specifies the label space."
  57         echo "    -x | --bash-debug         Enables output bash debugging"
  58         echo "    -h | --help               This help message"
  59         echo
  60         echo "         --nolabel            Do not output label"
  61         echo "         --noappname          Do not output app name"
  62         echo "         --noadjust           Do not adjust the width of the label"
  63     }
  64
  65     while getopts "a:c:l:no:r:s:xh-:" arg; do
  66         case ${arg} in
  67                 a)
  68                     _appname="${OPTARG}"
  69                     ;;
  70                 c)
  71                     _adjust_chr="${OPTARG}"
  72                     ;;
  73                 l)
  74                     _customized_label=true
  75                     _msg_label="${OPTARG}"
  76                     ;;
  77                 n)
  78                     _nocolor=true
  79                     ;;
  80                 o)
  81                     _echo_opts="${OPTARG}"
  82                     ;;
  83                 r)
  84                     _customized_label_color=true
  85                     case ${OPTARG} in
  86                         "black")
  87                             _labelcolor="30"
  88                             ;;
  89                         "red")
  90                             _labelcolor="31"
  91                             ;;
  92                         "green")
  93                             _labelcolor="32"
  94                             ;;
  95                         "yellow")
  96                             _labelcolor="33"
  97                             ;;
  98                         "blue")
  99                             _labelcolor="34"
 100                             ;;
 101                         "magenta")
 102                             _labelcolor="35"
 103                             ;;
 104                         "cyan")
 105                             _labelcolor="36"
 106                             ;;
 107                         "white")
 108                             _labelcolor="37"
 109                             ;;
 110                         *)
 111                             return 1
 112                             ;;
 113                     esac
 114                     ;;
 115                 s)
 116                     _label_space="${OPTARG}"
 117                     ;;
 118                 x)
 119                     _bash_debug=true
 120                     set -xv
 121                     ;;
 122                 h)
 123                     _help
 124                     shift 1
 125                     exit 0
 126                     ;;
 127                 -)
 128                     case "${OPTARG}" in
 129                         "nocolor")
 130                             _nocolor=true
 131                             ;;
 132                         "bash-debug")
 133                             _bash_debug=true
 134                             set -xv
 135                             ;;
 136                         "help")
 137                             _help
 138                             exit 0
 139                             ;;
 140                         "nolabel")
 141                             _nolabel=true
 142                             ;;
 143                         "noappname")
 144                             _noappname=true
 145                             ;;
 146                         "noadjust")
 147                             _noadjust=true
 148                             ;;
 149                         *)
 150                             _help
 151                             exit 1
 152                             ;;
 153                     esac
 154         esac
 155     done
 156
 157     shift $((OPTIND - 1))
 158
 159     # Color echo
 160     #
 161     # Text Color
 162     # 30 => Black
 163     # 31 => Red
 164     # 32 => Green
 165     # 33 => Yellow
 166     # 34 => Blue
 167     # 35 => Magenta
 168     # 36 => Cyan
 169     # 37 => White
 170     #
 171     # Background color
 172     # 40 => Black
 173     # 41 => Red
 174     # 42 => Green
 175     # 43 => Yellow
 176     # 44 => Blue
 177     # 45 => Magenta
 178     # 46 => Cyan
 179     # 47 => White
 180     #
 181     # Text decoration
 182     # You can specify multiple decorations with ;.
 183     # 0 => All attributs off (ノーマル)
 184     # 1 => Bold on (太字)
 185     # 4 => Underscore (下線)
 186     # 5 => Blink on (点滅)
 187     # 7 => Reverse video on (色反転)
 188     # 8 => Concealed on
 189
 190     case ${1} in
 191         "info")
 192             _msg_type="type"
 193             _output="stdout"
 194             [[ "${_customized_label_color}" = false ]] && _labelcolor="32"
 195             [[ "${_customized_label}"       = false ]] && _msg_label="Info"
 196             shift 1
 197             ;;
 198         "warn")
 199             _msg_type="warn"
 200             _output="stdout"
 201             [[ "${_customized_label_color}" = false ]] && _labelcolor="33"
 202             [[ "${_customized_label}"       = false ]] && _msg_label="Warning"
 203             shift 1
 204             ;;
 205         "debug")
 206             _msg_type="debug"
 207             _output="stdout"
 208             [[ "${_customized_label_color}" = false ]] && _labelcolor="35"
 209             [[ "${_customized_label}"       = false ]] && _msg_label="Debug"
 210             shift 1
 211             ;;
 212         "error")
 213             _msg_type="error"
 214             _output="stderr"
 215             [[ "${_customized_label_color}" = false ]] && _labelcolor="31"
 216             [[ "${_customized_label}"       = false ]] && _msg_label="Error"
 217             shift 1
 218             ;;
 219         "")
 220             echo "Please specify the message type" >&2
 221             exit 1
 222             ;;
 223         *)
 224             echo "Unknown message type" >&2
 225             exit 1
 226             ;;
 227     esac
 228
 229     _word_count="${#_msg_label}"
 230     _message="${@}"
 231
 232     echo_type() {
 233         local __time
 234         if [[ "${_nolabel}" = false ]]; then
 235             if [[ "${_noadjust}" = false ]]; then
 236                 for __time in $( seq 1 $(( ${_label_space} - ${_word_count})) ); do
 237                     echo -ne "${_adjust_chr}"
 238                 done
 239             fi
 240             if [[ "${_nocolor}" = false ]]; then
 241                 echo -ne "\e[$([[ -v _backcolor ]] && echo -n "${_backcolor}"; [[ -v _labelcolor ]] && echo -n ";${_labelcolor}"; [[ -v _decotypes ]] && echo -n ";${_decotypes}")m${_msg_label}\e[m "
 242             else
 243                 echo -ne "${_msg_label} "
 244             fi
 245         fi
 246     }
 247
 248     echo_appname() {
 249         if [[ "${_noappname}" = false ]]; then
 250             if [[ "${_nocolor}" = false ]]; then
 251                 echo -ne "\e[36m[${_appname}]\e[m "
 252             else
 253                 echo -ne "[${_appname}] "
 254             fi
 255         fi
 256     }
 257
 258     for _count in $(seq "1" "$(echo -ne "${_message}\n" | wc -l)"); do
 259         _echo_message=$(echo -ne "${_message}\n" |head -n "${_count}" | tail -n 1 )
 260         _full_message="$(echo_appname)$(echo_type)${_echo_message}"
 261         case "${_output}" in
 262             "stdout")
 263                 echo ${_echo_opts} "${_full_message}" >&1
 264                 ;;
 265             "stderr")
 266                 echo ${_echo_opts} "${_full_message}" >&2
 267                 ;;
 268             *)
 269                 echo ${_echo_opts} "${_full_message}" > ${_output}
 270                 ;;
 271         esac
 272     done
 273 }
 274
 275 # Show an INFO message
 276 # $1: message string
 277 msg_info() {
 278     local _msg_opts="-a WFA"
 279     if [[ "${1}" = "-n" ]]; then
 280         _msg_opts="${_msg_opts} -o -n"
 281         shift 1
 282     fi
 283     [[ "${msgdebug}" = true ]] && _msg_opts="${_msg_opts} -x"
 284     [[ "${nocolor}"  = true ]] && _msg_opts="${_msg_opts} -n"
 285     msg ${_msg_opts} info "${1}"
 286 }
 287
 288 # Show an Warning message
 289 # $1: message string
 290 msg_warn() {
 291     local _msg_opts="-a WFA"
 292     if [[ "${1}" = "-n" ]]; then
 293         _msg_opts="${_msg_opts} -o -n"
 294         shift 1
 295     fi
 296     [[ "${msgdebug}" = true ]] && _msg_opts="${_msg_opts} -x"
 297     [[ "${nocolor}"  = true ]] && _msg_opts="${_msg_opts} -n"
 298     msg ${_msg_opts} warn "${1}"
 299 }
 300
 301 # Show an debug message
 302 # $1: message string
 303 msg_debug() {
 304     if [[ "${debug}" = true ]]; then
 305         local _msg_opts="-a WFA"
 306         if [[ "${1}" = "-n" ]]; then
 307             _msg_opts="${_msg_opts} -o -n"
 308             shift 1
 309         fi
 310         [[ "${msgdebug}" = true ]] && _msg_opts="${_msg_opts} -x"
 311         [[ "${nocolor}"  = true ]] && _msg_opts="${_msg_opts} -n"
 312         msg ${_msg_opts} debug "${1}"
 313     fi
 314 }
 315
 316 # Show an ERROR message then exit with status
 317 # $1: message string
 318 # $2: exit code number (with 0 does not exit)
 319 msg_error() {
 320     local _msg_opts="-a WFA"
 321     if [[ "${1}" = "-n" ]]; then
 322         _msg_opts="${_msg_opts} -o -n"
 323         shift 1
 324     fi
 325     [[ "${msgdebug}" = true ]] && _msg_opts="${_msg_opts} -x"
 326     [[ "${nocolor}"  = true ]] && _msg_opts="${_msg_opts} -n"
 327     msg ${_msg_opts} error "${1}"
 328     if [[ -n "${2:-}" ]]; then
 329         exit ${2}
 330     fi
 331 }
 332
 333 # rm helper
 334 # Delete the file if it exists.
 335 # For directories, rm -rf is used.
 336 # If the file does not exist, skip it.
 337 # remove <file> <file> ...
 338 remove() {
 339     local _list=($(echo "$@")) _file
 340     for _file in "${_list[@]}"; do
 341         msg_debug "Removing ${_file}"
 342         if [[ -f "${_file}" ]]; then
 343             rm -f "${_file}"
 344         elif [[ -d "${_file}" ]]; then
 345             rm -rf "${_file}"
 346         fi
 347     done
 348 }
 349
 350 usage (){
 351     local _pacman_help=false
 352
 353     local _wfa_usage
 354     _wfa_usage() {
 355         echo "Usage:"
 356         echo "wfa"
 357         echo "wfa <operation> [...]"
 358         echo
 359         echo "operations:"
 360         echo "wfa {-h --help}"
 361         echo "wfa {-V --version}"
 362         #echo "wfa {-D --database}    <options> <package(s)>"
 363         #echo "wfa {-F --files}       [options] [package(s)]"
 364         echo "wfa {-Q --query}       [options] [package(s)]"
 365         echo "wfa {-R --remove}      [options] <package(s)>"
 366         echo "wfa {-S --sync}        [options] [package(s)]"
 367         #echo "wfa {-T --deptest}     [options] [package(s)]"
 368         #echo "wfa {-U --upgrade}     [options] <file(s)>"
 369     }
 370
 371     local _wfa_usage_sync
 372     _wfa_usage_sync() {
 373         echo "usage:  wfa {-S --sync} [options] [package(s)]"
 374         echo "options:"
 375         echo "  -b, --dbpath <path>  set an alternate database location"
 376         echo "      --config <path>  set an alternate configuration file"
 377         echo "      --noconfirm      do not ask for any confirmation"
 378
 379     }
 380
 381     if [[ "${operation}" = "none" ]]; then
 382         _wfa_usage
 383     elif [[ "${_pacman_help}" = true ]]; then
 384         pacman -h --${operation}
 385     elif [[ "$(type -t "_wfa_usage_${operation}" )" = "function" ]]; then
 386         _wfa_usage_${operation}
 387     else
 388         msg_error "Undefined operation." 1
 389     fi
 390 }
 391
 392 set_operation() {
 393     if [[ "${operation}" = "none" ]]; then
 394         operation="${1}"
 395         add_pacman_args "--${operation}"
 396     else
 397         msg_error "only one operation may be used at a time" 1
 398     fi
 399 }
 400
 401 run_sudo() {
 402     if (( ${UID} == 0 )); then
 403         ${@}
 404     else
 405         sudo ${@}
 406     fi
 407 }
 408
 409 run_pacman() {
 410     run_sudo pacman ${pacman_args} ${@}
 411 }
 412
 413 # pacmanの引数を追加する
 414 # https://github.com/FascodeNet/aptpac/blob/master/aptpac のADD_OPTION関数を参考
 415 add_pacman_args() {
 416     local _pacman_args_array=(${pacman_args})
 417     _pacman_args_array+=(${@})
 418     pacman_args=${_pacman_args_array[@]}
 419     msg_debug "PACMAN ARGS: ${pacman_args}"
 420 }
 421
 422 # 引数で指定されたパッケージがAUR以外の場所に存在しない場合にのみ正常終了します(AURのパッケージの場合に正常終了)
 423 check_aur_package() {
 424     local _package="${1}"
 425     # 参考: https://qiita.com/Hayao0819/items/a8740a17301fafa2fdab
 426     if [[ -z "$(pacman -Fq "${_package}" 2>/dev/null | grep -o ".*${_package}$")" ]]; then
 427         #AUR以外のリポジトリに存在しない
 428         return 0
 429     else
 430         return 1
 431     fi
 432 }
 433
 434
 435 get_cache_dir() {
 436     local _user_config_dir
 437     if [[ -v XDG_CONFIG_HOME ]]; then
 438         _user_config_dir="${XDG_CONFIG_HOME}"
 439     else
 440         _use_config_dir="${HOME}/.config"
 441     fi
 442     if [[ -f "${_use_config_dir}/user-dirs.dirs" ]]; then
 443         source "${_use_config_dir}/user-dirs.dirs"
 444     fi
 445     if [[ -v XDG_CACHE_HOME ]]; then
 446         echo -n "${XDG_CACHE_HOME}"
 447         return 0
 448     else
 449         echo -n "${HOME}/.cache"
 450         return 0
 451     fi
 452 }
 453
 454 # Usage: get_srcinfo_data <path> <var>
 455 : << "DISABLED"
 456 get_srcinfo_data() {
 457     local _srcinfo="${1}" _ver="${2}"
 458     local _srcinfo_json=$(python << EOF
 459 from srcinfo.parse import parse_srcinfo; import json
 460 text = """
 461 $(cat ${1})
 462 """
 463 parsed, errors = parse_srcinfo(text)
 464 print(json.dumps(parsed))
 465 EOF
 466     )
 467     echo "${_srcinfo_json}" | jq -r .${2}
 468 }
 469 DISABLED
 470
 471 get_srcinfo_data() {
 472     local _srcinfo="${1}"
 473     local _var="${2}"
 474     local _pkg _output
 475     if [[ ! -f "${_srcinfo}" ]]; then
 476         msg_error ".SRCINFO does not exist."
 477     fi
 478     for _pkg in $(cat "${_srcinfo}" | grep "${_var} = " | cut -d ' ' -f "3"); do
 479         _output+=(${_pkg})
 480     done
 481     echo -n "${_output[@]}"
 482 }
 483
 484
 485 # AURからパッケージをビルドしてインストールします
 486 # 現在1つのパッケージしか指定できません
 487 install_aur_package() {
 488     local _package="${1}"
 489
 490     # Create cache dir
 491     if [[ ! -v wfa_cache_dir ]]; then
 492         wfa_cache_dir="$(get_cache_dir)/wfa"
 493     fi
 494     mkdir -p "${wfa_cache_dir}/archive"
 495     mkdir -p "${wfa_cache_dir}/build/${_package}"
 496
 497     # AurJsonから値を取得
 498     local _aur_json=$(curl -sL "https://aur.archlinux.org/rpc/?v=5&type=search&by=name&arg=${_package}" | jq -r)
 499     if (( "$(echo "${_aur_json}" | jq -r ".resultcount")" == 0 )); then
 500         msg_error "Could not find all required packages:\n      ${_package}" 1
 501     fi
 502
 503     local _found_packages="$(echo "${_aur_json}" | jq -r --tab '.results[].Name')"
 504     #msg_debug "Found package: $(echo ${_found_packages} | tr '\n' ' ')"
 505
 506     if [[ -n "$(echo "${_found_packages}" | grep -x "${_package}" )" ]]; then
 507         msg_debug "Select a package ${_package} with an exact name match"
 508     else
 509         msg_error "No package with an exact name match was found." 1
 510     fi
 511
 512     # PKGBUILDをダウンロード
 513     msg_info "Download PKGBUILD of ${_package}"
 514     _aur_json=$(echo "${_aur_json}" | jq -r ".results[] | select(.Name == \"${_package}\")" )
 515     local _aur_snapshot_url="${aururl%/}$(echo "${_aur_json}" | jq -r ".URLPath")"
 516     local _aur_version="$(echo "${_aur_json}" | jq -r ".Version")"
 517     msg_debug "Get PKGBUILD from ${_aur_snapshot_url}"
 518
 519     local _pkgbuild_archive_path="${wfa_cache_dir}/archive/${_package}-${_aur_version}"
 520     local _download_pkgbuild=true
 521     if [[ -f "${_pkgbuild_archive_path}" ]]; then
 522         msg_warn "PKGBUILD has already been downloaded."
 523         msg_warn -n "Do you want to overwrite and download? [n] :"
 524         local _yes_or_no
 525         if [[ "${noconfirm}" = true ]]; then
 526             echo
 527             _yes_or_no="No"
 528         else
 529             read _yes_or_no
 530         fi
 531         case "${_yes_or_no}" in
 532             "y" | "Y" | "yes" | "Yes" | "YES" ) _download_pkgbuild=true  ;;
 533             *                                 ) _download_pkgbuild=false ;;
 534         esac
 535     fi
 536     if [[ "${_download_pkgbuild}" = true ]]; then
 537         remove "${_pkgbuild_archive_path}"
 538         curl -L -C - -f -o "${_pkgbuild_archive_path}" "${_aur_snapshot_url}"
 539     fi
 540
 541     # PKGBUILDを展開
 542     msg_info "Unpacking the tarball of PKGBUILD ..."
 543     tar -xv -f "${_pkgbuild_archive_path}" -C "${wfa_cache_dir}/build/" 2>/dev/null 1>&2
 544
 545     # .SRCINFOを解析
 546     local _build_dir="${wfa_cache_dir}/build/${_package}"
 547     if [[ ! -f "${_build_dir}/.SRCINFO" ]]; then
 548         msg_warn ".SRCINFO was not found.\nGenerate it using makepkg."
 549         makepkg -p "${_build_dir}/PKGBUILD" --printsrcinfo > "${_build_dir}/.SRCINFO"
 550     fi
 551
 552     local _makedepends="$(get_srcinfo_data "${_build_dir}/.SRCINFO" "makedepends")"
 553     local _depends="$(get_srcinfo_data "${_build_dir}/.SRCINFO" "depends")"
 554     local _conflicts="$(get_srcinfo_data "${_build_dir}/.SRCINFO" "conflicts")"
 555     msg_debug "makedepends: ${_makedepends}"
 556     msg_debug "depends: ${_depends}"
 557     msg_debug "conflicts: ${_conflicts}"
 558
 559
 560     # 衝突を確認
 561     local _pkg _conflicts_found=false
 562     for _pkg in ${_conflicts[@]}; do
 563         if pacman -Qq "${_pkg}" 2>/dev/null 1>&2 ; then
 564             _conflicts_found=true
 565             msg_error "${_package} is colliding with ${_pkg}"
 566         fi
 567     done
 568     if [[ ! "$(pacman -Qq "${_package}")" = "${_package}" ]]; then
 569         msg_error "${_package} is colliding with $(pacman -Qq "${_package}")"
 570         _conflicts_found=true
 571     fi
 572     if [[ "${_conflicts_found}" = true ]]; then
 573         msg_error "A conflict was found." 1
 574     fi
 575
 576
 577     # 依存パッケージをインストール
 578     msg_info "Install dependent packages..."
 579     local _force_aur="${force_aur}"
 580     force_aur=false
 581     install_package "${_makedepends}" "${_depends}"
 582     force_aur="${_force_aur}"
 583     unset _force_aur
 584
 585
 586 }
 587
 588 # バージョンを表示して終了
 589 operation_version() {
 590     # Pyalpmからlibalpmの値を取得
 591     # 参考: https://pyalpm.readthedocs.io/en/latest/pyalpm/pyalpm.html
 592     local _libalpm_version="$(python3 -c 'import pyalpm; print(pyalpm.alpmversion())')"
 593     local _pacman_version="$(pacman -Q pacman | cut -d ' ' -f 2)"
 594     echo "wfa v${wfa_version} - pacman v${_pacman_version} - libalpm v${_libalpm_version}"
 595 }
 596
 597 operation_remove() {
 598     run_pacman "${specified_packages[@]}"
 599 }
 600
 601 # Usage: install_package <package1> <package2>...
 602 install_package() {
 603     local _package
 604     for _package in ${@}; do
 605         if ! check_aur_package "${_package}" && [[ "${force_aur}" = false ]]; then
 606             # 公式パッケージなのでpacmanでそのままインストール
 607             run_pacman "${_package}"
 608         else
 609             # AUR上のパッケージの場合の処理
 610             install_aur_package "${_package}"
 611             #msg_error "Getting the AUR package has not been implemented yet." 1
 612         fi
 613     done
 614 }
 615
 616 operation_sync(){
 617     install_package "${specified_packages[@]}"
 618 }
 619
 620
 621 # Parse options
 622 ARGUMENT="${@}"
 623 _opt_short="QRShVdb:a"
 624 _opt_long="query,remove,sync,help,version,debug,dbpath:,aururl,aur,noconfirm,config:"
 625
 626 OPT=$(getopt -o ${_opt_short} -l ${_opt_long} -- ${ARGUMENT})
 627 [[ ${?} != 0 ]] && exit 1
 628 unset _opt_short _opt_long
 629
 630 eval set -- "${OPT}"
 631 msg_debug "Argument: ${OPT}"
 632
 633 while :; do
 634     case ${1} in
 635         -Q | --query)
 636             set_operation "query"
 637             shift 1
 638             ;;
 639         -R | --remove)
 640             set_operation "remove"
 641             shift 1
 642             ;;
 643         -S | --sync)
 644             set_operation "sync"
 645             shift 1
 646             ;;
 647         -V | --version)
 648             set_operation "version"
 649             shift 1
 650             ;;
 651         --)
 652             shift
 653             break
 654             ;;
 655         *)
 656             shift 1
 657             ;;
 658     esac
 659 done
 660
 661 eval set -- "${OPT}"
 662
 663 while :; do
 664     case ${1} in
 665         -a | --aur)
 666             force_aur=true
 667             msg_debug "Assume targets are from the AUR"
 668             shift 1
 669             ;;
 670         -d | --debug)
 671             debug=true
 672             add_pacman_args "--debug"
 673             shift 1
 674             ;;
 675         -b | --dbpath)
 676             add_pacman_args "--dbpath '${2}'"
 677             shift 2
 678             ;;
 679         --aururl)
 680             aururl="${2}"
 681             shift 2
 682             ;;
 683         --noconfirm)
 684             add_pacman_args "--noconfirm"
 685             noconfirm=true
 686             shift 1
 687             ;;
 688         --config)
 689             pacman_config="${2}"
 690             add_pacman_args "--config \"${2}\""
 691             shift 2
 692             ;;
 693         -h | --help)
 694             usage
 695             shift 1
 696             exit 0
 697             ;;
 698         --)
 699             shift
 700             break
 701             ;;
 702         *)
 703             shift 1
 704             ;;
 705     esac
 706 done
 707
 708 specified_packages=(${@})
 709
 710 case "${operation}" in
 711     "version")
 712         operation_version
 713         ;;
 714     "sync")
 715         operation_sync
 716         ;;
 717     "remove")
 718         operation_remove
 719         ;;
 720     "none")
 721         exit 0
 722         ;;
 723     *)
 724         msg_error "Undefined operation." 1
 725         ;;
 726 esac