#!/bin/sh
#
# 2011-2012 Nico Schottelius (nico-cdist at schottelius.org)
#
# This file is part of cdist.
#
# cdist 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 3 of the License, or
# (at your option) any later version.
#
# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
#
#
# Retrieve the status of a package - parsed dpkg output
#

if [ -f "$__object/parameter/name" ]; then
   name="$(cat "$__object/parameter/name")"
else
   name="$__object_id"
fi

# Except dpkg failing, if package is not known / installed
packages="$(apt-cache showpkg "$name" | sed -e "1,/Reverse Provides:/d" | cut -d ' ' -f 1) $name"
for p in $packages; do
    if dpkg -s "$p" 2>/dev/null | grep --quiet "^Status: install ok installed$" ; then
       version=$(dpkg -s "$p" 2>/dev/null | grep "^Version:" | cut -d ' ' -f 2)
       echo "present $p $version"
       exit 0
    fi
done
echo absent