#!/bin/bash
# last updated Friday May 17, 2013
#
# web site mirror backup script v0.3.. (run as daily cron)
#
# This runs on a Linux box, where both the real dev mirror, and the backup directory
# live (though the latter is on a separate physical drive, of course, it is mounted
# in /bax ) you could backup to a different machine, remember to ensure the
# share/network-drive is mounted first. You could mount it in this script, of course.
#
# This script updates the backup mirror in $home with all changed files from my dev
# mirror in $backupdir all activity is logged to a file which we parse into sftp
# commands with the "website-sync" php script.
#
# This script now creates a local backup and then copies the backup to remote drive
# and on success, deletes the local copy. This could be a mounted NAS backup volume,
# or whatever. I find this two-stage approach safer, more robust.
#
# Normally you would create a wrapper for this script, something like..
#
#	#!/bin/bash
#	echo "running backup for mydomain.com.."
#	/usr/local/bin/corz-backup mydomain.com
#	exit 0
#
# Name that script something short, like "cb" and drop it into your PATH.
#
# ;o)
#
# © corz.org 2003->
#

# get host name..
if [ -z $1 ]; then
	echo
	echo "Please supply a domain name on the command-line. e.g.."
	echo
	echo "$0 foobar.net"
	echo
	echo "corz-backup will then use settings file: ~/.sftp/foobar.net"
	echo
	exit 1
fi

# grab settings..
. ~/.sftp/$1

# name of the backup file..
newname="$now.$host.tar.gz"

echo "backup for $host: "`date "+%Y.%m.%d-%H.%M"`.. >> $logfile
echo  >> $logfile
echo "backup for $host (full version - with archiving)"


cd $backupdir
# remove certain files.. (for backup size)
for i in $( find $host -name \"*.mp3\" ); do rm "$i"; done

echo "archiving current dev mirror.."
tar cfz $newname $host >> $logfile

# copy the tar.gz to the backup directory with unique dated filename
if [ ! -d $arcroot ]; then
	mkdir -pv $arcroot > /dev/null
fi
mv $newname  $arcroot/ >> $logfile


# remount remote storage volumes..
remount  > /dev/null

if [ ! -d $ol_daily ]; then
	mkdir -pv $ol_daily > /dev/null
fi

# If possible, move the archive over to the storage facility..
if [ -e "$ol_daily" ];then
	echo -n "Copying site backup to offline storage facility.. "
	cp  $arcroot/$newname $ol_daily/
	if [ -e "$ol_daily/$newname" ];then
		echo "Success!"
		rm $arcroot/$newname >> $logfile &> /dev/null
		rmdir $arcroot &> /dev/null
	fi
fi

# copy over (& log) all the newer files (Linux cp rocks! Apple take note.)
echo "copying (& logging) changed files to dev mirror backup.."
cp -d -f -p -r -u -v $home/* $backupdir/$host >> $logfile
now=`date "+%Y.%m.%d-%H.%M"`

echo >> $logfile
command -v fortune >/dev/null 2>&1 || { echo "backup for $host complete!"; exit 0; }
fortune

echo "backup complete at $now"
exit 0