#!/bin/sh
#
# Copyright (c) 2014-2016 Martin Raiber
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

set -e

. SYSCONFDIR/mariadbxtrabackup.conf

alias errcho='>&2 echo'

TIME=`date`
errcho "Starting binary backup of MariaDB at $TIME..."

if [ "x$MARIADB_TEMP_INCRDIR" = "x" ]
then
	errcho "Mariadb incremental temp dir is empty"
	exit 1
fi

[ ! -e "$MARIADB_TEMP_INCRDIR/last.new" ] || rm -R "$MARIADB_TEMP_INCRDIR/last.new"
mkdir -p "$MARIADB_TEMP_INCRDIR/last.new"

COMPACT=""
if [ "x$MARIADB_BACKUP_INDEXES" = x0 ]
then
	COMPACT="--compact"
fi

if [ -e "$MARIADB_TEMP_INCRDIR/blockalign.data" ]
then
	cp "$MARIADB_TEMP_INCRDIR/blockalign.data" "$MARIADB_TEMP_INCRDIR/blockalign.data.new"
fi

self=$$
{ $XTRABACKUP_CMD --backup --stream=xbstream --extra-lsndir="$MARIADB_TEMP_INCRDIR/last.new" --user="$MARIADB_USER" --password="$MARIADB_PASSWORD" $COMPACT || kill $self; } | blockalign - - "$MARIADB_TEMP_INCRDIR/blockalign.data.new"

TIME=`date`
errcho "Backup of MariaDB finished at $TIME."

exit 0
