scripts/repo-remove.sh.in

   1 #!/bin/bash
   2 #
   3 #   repo-remove - remove a package entry from a given repo database file
   4 #   @configure_input@
   5 #
   6 #   Copyright (c) 2002-2007 by Judd Vinet <jvinet@zeroflux.org>
   7 #
   8 #   This program is free software; you can redistribute it and/or modify
   9 #   it under the terms of the GNU General Public License as published by
  10 #   the Free Software Foundation; either version 2 of the License, or
  11 #   (at your option) any later version.
  12 #
  13 #   This program is distributed in the hope that it will be useful,
  14 #   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 #   GNU General Public License for more details.
  17 #
  18 #   You should have received a copy of the GNU General Public License
  19 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 # gettext initialization
  22 export TEXTDOMAIN='pacman'
  23 export TEXTDOMAINDIR='@localedir@'
  24
  25 myver='@PACKAGE_VERSION@'
  26 confdir='@sysconfdir@'
  27
  28 FORCE=0
  29 REPO_DB_FILE=""
  30
  31 msg() {
  32         local mesg=$1; shift
  33         printf "==> ${mesg}\n" "$@" >&1
  34 }
  35
  36 msg2() {
  37         local mesg=$1; shift
  38         printf "  -> ${mesg}\n" "$@" >&1
  39 }
  40
  41 warning() {
  42         local mesg=$1; shift
  43         printf "==> $(gettext "WARNING:") ${mesg}\n" "$@" >&2
  44 }
  45
  46 error() {
  47         local mesg=$1; shift
  48         printf "==> $(gettext "ERROR:") ${mesg}\n" "$@" >&2
  49 }
  50
  51 # print usage instructions
  52 usage() {
  53         printf "$(gettext "repo-remove %s\n\n")" $myver
  54         printf "$(gettext "usage: %s <path-to-db> <packagename> ...\n\n")" "$0"
  55         printf "$(gettext "\
  56 repo-remove will update a package database by removing the package name\n\
  57 specified on the command line from the given repo database. Multiple\n\
  58 packages to remove can be specified on the command line.\n\n")"
  59         echo "$(gettext "Example:  repo-remove /path/to/repo.db.tar.gz kernel26")"
  60 }
  61
  62 version() {
  63         printf "repo-remove (pacman) %s\n" "$myver"
  64         printf "$(gettext "\
  65 Copyright (C) 2002-2007 Judd Vinet <jvinet@zeroflux.org>.\n\n\
  66 This is free software; see the source for copying conditions.\n\
  67 There is NO WARRANTY, to the extent permitted by law.\n")"
  68 }
  69
  70 # test if a file is a repository DB
  71 test_repo_db_file () {
  72         if [ -f "$REPO_DB_FILE" ]; then
  73                 if bsdtar -tf "$REPO_DB_FILE" | grep -q "/desc"; then
  74                         return 0 # YES
  75                 fi
  76         fi
  77
  78         return 1 # NO
  79 }
  80
  81 # remove existing entries from the DB
  82 db_remove_entry() {
  83         pushd "$gstmpdir" 2>&1 >/dev/null
  84
  85         # remove any other package in the DB with same name
  86         local existing
  87         for existing in *; do
  88                 if [ "${existing%-*-*}" = "$1" ]; then
  89                         msg2 "$(gettext "Removing existing package '%s'...")" "$existing"
  90                         rm -rf "$existing"
  91                 fi
  92         done
  93
  94         popd 2>&1 >/dev/null
  95 } # end db_remove_entry
  96
  97 # PROGRAM START
  98
  99 # check for help flags
 100 if [ "$1" = "-h" -o "$1" = "--help" ]; then
 101         usage
 102         exit 0
 103 fi
 104
 105 # check for version flags
 106 if [ "$1" = "-V" -o "$1" = "--version" ]; then
 107         version
 108         exit 0
 109 fi
 110
 111 # check for correct number of args
 112 if [ $# -lt 2 ]; then
 113         usage
 114         exit 1
 115 fi
 116
 117 # source system and user makepkg.conf
 118 if [ -r "$confdir/makepkg.conf" ]; then
 119         source "$confdir/makepkg.conf"
 120 else
 121         error "$(gettext "%s not found. Cannot continue.")" "$confdir/makepkg.conf"
 122         exit 1 # $E_CONFIG_ERROR
 123 fi
 124
 125 if [ -r ~/.makepkg.conf ]; then
 126         source ~/.makepkg.conf
 127 fi
 128
 129 # main routine
 130 gstmpdir=$(mktemp -d /tmp/repo-remove.XXXXXXXXXX) || (\
 131         error "$(gettext "Cannot create temp directory for database building.")"; \
 132         exit 1)
 133
 134 success=0
 135 # parse arguments
 136 for arg in "$@"; do
 137         if [ -z "$REPO_DB_FILE" ]; then
 138                 REPO_DB_FILE=$(readlink -f "$arg")
 139                 if ! test_repo_db_file; then
 140                         error "$(gettext "Repository file '%s' is not a proper pacman database.")\n" "$REPO_DB_FILE"
 141                         exit 1
 142                 elif [ -f "$REPO_DB_FILE" ]; then
 143                         msg "$(gettext "Extracting database to a temporary location...")"
 144                         bsdtar -xf "$REPO_DB_FILE" -C "$gstmpdir"
 145                 fi
 146         else
 147                 msg "$(gettext "Searching for package '%s'...")" "$arg"
 148
 149                 if db_remove_entry "$arg"; then
 150                         success=1
 151                 else
 152                         error "$(gettext "Package matching '%s' not found.")" "$arg"
 153                 fi
 154         fi
 155 done
 156
 157 # if all operations were a success, re-zip database
 158 if [ $success -eq 1 ]; then
 159         msg "$(gettext "Creating updated database file '%s'...")" "$REPO_DB_FILE"
 160         pushd "$gstmpdir" 2>&1 >/dev/null
 161
 162         if [ -n "$(ls)" ]; then
 163                 [ -f "${REPO_DB_FILE}.old" ] && rm "${REPO_DB_FILE}.old"
 164                 [ -f "$REPO_DB_FILE" ] && mv "$REPO_DB_FILE" "${REPO_DB_FILE}.old"
 165                 case "$DB_COMPRESSION" in
 166                         gz)  TAR_OPT="z" ;;
 167                         bz2) TAR_OPT="j" ;;
 168                         *)   warning "$(gettext "No compression set.")" ;;
 169                 esac
 170
 171                 bsdtar -c${TAR_OPT}f "$REPO_DB_FILE" *
 172         fi
 173
 174         popd 2>&1 >/dev/null
 175 else
 176         msg "$(gettext "No packages modified, nothing to do.")"
 177 fi
 178
 179 # remove the temp directory used to unzip
 180 [ -d "$gstmpdir" ] && rm -rf $gstmpdir
 181
 182 # vim: set ts=2 sw=2 noet: