#!/bin/bash

basedir="/var/backup"
prefix="daily"
count="25"
list="dirs.list"

(
mountpoint -q $basedir && umount $basedir

fsck -y /dev/data/backup
mount ${basedir}
echo "Start @ `date`" > ${basedir}/time

last=${basedir}/${prefix}.${count}
lasttmp=${basedir}/${prefix}.${count}.tmp
if [ -d ${lasttmp} ]; then
	rm -r ${lasttmp}
fi
if [ -x ${last} ]; then
	mv ${last} ${lasttmp}
fi

for n in `seq ${count} -1 1`; do
	((m=$n - 1))
	src=${basedir}/${prefix}.$m
	dest=${basedir}/${prefix}.$n
	mv ${src} ${dest}
done
if [ -d ${lasttmp} ]; then
	mv ${lasttmp} ${basedir}/${prefix}.0
else
	mkdir -p ${basedir}/${prefix}.0
fi

for src in `cat ${basedir}/${list}`; do
	dest=${basedir}/${prefix}.0/${src}
	yest=${basedir}/${prefix}.1/${src}
	if [ ! -d ${dest} ]; then
		mkdir -p ${dest}
	fi
	rsync -ax --delete --link-dest=${yest} ${src} ${dest}
done
touch ${basedir}/${prefix}.0

echo "Begin MySQL @ `date`" >> ${basedir}/time
rm -f ${basedir}/${prefix}.0/mysql.sql.xz
mysqldump --all-databases --triggers --routines --events | xz > ${basedir}/${prefix}.0/mysql.sql.xz

echo "Begin LDAP @ `date`" >> ${basedir}/time
rm -f ${basedir}/${prefix}.0/ldap.ldif.xz
ldapsearch | xz > ${basedir}/${prefix}.0/ldap.ldif.xz

echo "Begin PostgreSQL @ `date`" >> ${basedir}/time
rm -f ${basedir}/${prefix}.0/postgresql-gentoobrowse.sql.xz
pg_dump -Upostgres gentoobrowse | xz > ${basedir}/${prefix}.0/postgresql-gentoobrowse.sql.xz
rm -f ${basedir}/${prefix}.0/postgresql-p2pvr.sql.xz
pg_dump -Upostgres p2pvr | xz > ${basedir}/${prefix}.0/postgresql-p2pvr.sql.xz
rm -f ${basedir}/${prefix}.0/postgresql-bugzilla.sql.xz
pg_dump -Upostgres bugzilla | xz > ${basedir}/${prefix}.0/postgresql-bugzilla.sql.xz

echo "Begin hardlink @ `date`" >> ${basedir}/time
hardlink -mt ${basedir}

echo "End @ `date`" >> ${basedir}/time
umount ${basedir}

) | tee /var/log/backup.log