#!/bin/sh
#
# Copyright (C) Marco Weber <samba_backup@jukan.ch> 2014
#
# 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 3 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/>.
#

FROMWHERE=/var/db/system/samba4
WHERE=/var/db/system
if [ -n "$1" ] && [ "$1" = "-h" -o "$1" = "--usage" ]; then
	echo "samba_backup [provisiondir] [destinationdir]"
	echo "Will backup your provision located in provisiondir to archive stored in destinationdir"
	echo "Default provisiondir: $FROMWHERE"
	echo "Default destinationdir: $WHERE"
	exit 0
fi

[ -n "$1" -a -d "$1" ]&&FROMWHERE=$1
[ -n "$2" -a -d "$2" ]&&WHERE=$2

DIRS="."
#Number of days to keep the backup
DAYS=90
WHEN=`date +%Y%m%d-%H%M`

if [ ! -d $WHERE ]; then
	echo "Missing backup directory $WHERE"
	exit 1
fi

if [ ! -d $FROMWHERE ]; then
	echo "Missing or wrong provision directory $FROMWHERE"
	exit 1
fi

cd $FROMWHERE
relativedirname=`find . -type d -prune`
find $relativedirname -name "*.ldb.bak" -exec rm {} \;
for ldb in `find $relativedirname -name "*.ldb"`; do
	tdbbackup $ldb
	if [ $? -ne 0 ]; then
		echo "Error while backuping $ldb"
		exit 1
	fi
done

cd ..
tar cjf ${WHERE}/samba4_${WHEN}.tar.bz2 samba4 >/dev/null 2>&1
if [ $? -ne 0 ]; then
	echo "Error while archiving ${WHERE}/samba4_${WHEN}.tar.bz2"
	exit 1
fi

find $WHERE -name "samba4_*bz2" -mtime +$DAYS -exec rm  {} \; >/dev/null 2>&1
