#!/bin/sh

#
# VARIABLES
#
# root backup directory
backupdir="/var/dsbackup"

# txt mail content + tar verbose output attachement
mailfile="$backupdir/backup-mail.txt"
tarfile="$backupdir/backup-tar.txt"

# current date and time in sortable format
timestamp="$(date +'%y-%m-%d-%I:%M')"

echo "[DataSync] Generated Timestamp $timestamp." >> $mailfile

#
# PREPARATION
#
# delete all mail text related files - from the run before
echo "[DataSync] Removing mail file $mailfile & rm $tarfile..."
rm $mailfile
rm $tarfile

# touch empty new mail txt files - to be filled
echo "[DataSync] Creating new mail file $mailfile & rm $tarfile..." >> $mailfile
touch $mailfile
touch $tarfile

#
# SHUTDOWN DataSync & PostgreSQL SERVICES
#
# starting announcement of script in mail content
echo "[DataSync] Started backup script..." >> $mailfile

# shutdown datasync
echo "[DataSync] Shutting down Novell DataSynchronizer..." >> $mailfile
/usr/sbin/rcdatasync stop >> $mailfile

# shutdown postgre sql db
echo "[DataSync] Shutting down PostgreSQL Database..." >> $mailfile
/usr/sbin/rcpostgresql stop >> $mailfile

#
# DO BACKUP
#
# starting announcement
echo "[DataSync] Running Backup..." >> $mailfile

# create tar from all the necessary directories
tar -czvpf $backupdir/$timestamp-pgsql.tgz /var/lib/pgsql >> $tarfile
tar -czvpf $backupdir/$timestamp-vardatasync.tgz /var/lib/datasync >> $tarfile
tar -czvpf $backupdir/$timestamp-optdatasync.tgz /opt/novell/datasync >> $tarfile
tar -czvpf $backupdir/$timestamp-etcdatasync.tgz /etc/datasync >> $tarfile
echo "[DataSync] Backup done - everything saved under $backupdir..." >> $mailfile

#
# START DataSync & PostgreSQL SERVICES
#
# start postgre sql db - should be started first
echo "[DataSync] Starting PostgreSQL Database..." >> $mailfile
/usr/sbin/rcpostgresql start >> $mailfile

# start datasync
echo "[DataSync] Starting Novell DataSynchronizer..." >> $mailfile
/usr/sbin/rcdatasync start >> $mailfile

#
# CLEANUP
#
#clean up anything older than 20 days
echo "[DataSync] Purging any backups older than 20 days from the directory $backupdir..." >> $mailfile
find $backupdir -mtime +20 -exec rm -f {} \;
echo "[DataSync] Purging for $backupdir done." >> $mailfile

#
# SEND STATUS MAIL
#
# send mail to a given recipient  - if configured correct mail settings in yast2
echo "[DataSync] Send Mail to it-collector@sz.ch" >> $mailfile
mail -r server@company.ch -s "[SERVER] DataSync Backup done" -a $tarfile xyz@company.ch < $mailfil