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#!/bin/bash
#
# checkupdates: Safely print a list of pending updates.
#
# Copyright (c) 2013 Kyle Keen <keenerd@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
if (( $# > 0 )); then
echo "checkupdate: Safely print a list of pending updates."
echo "Use: checkupdates"
echo "Export the 'CHECKUPDATE_DB' variable to change the path of the temporary database."
exit 0
fi
if [[ -z $CHECKUPDATE_DB ]]; then
CHECKUPDATE_DB="${TMPDIR:-/tmp}/checkup-db-${USER}/"
fi
trap 'rm -f $CHECKUPDATE_DB/db.lck' INT TERM EXIT
DBPath="${DBPath:-@localstatedir@/lib/pacman/}"
eval $(awk -F' *= *' '$1 ~ /DBPath/ { print $1 "=" $2 }' /etc/pacman.conf)
mkdir -p "$CHECKUPDATE_DB"
ln -s "${DBPath}/local" "$CHECKUPDATE_DB" &> /dev/null
fakeroot pacman -Sy --dbpath "$CHECKUPDATE_DB" --logfile /dev/null &> /dev/null
pacman -Qqu --dbpath "$CHECKUPDATE_DB" 2> /dev/null
exit 0
# vim: set ts=2 sw=2 noet:
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