#! /bin/sh
# backup homedir
# author: anders.lindback [at] dnsz.se
# heavily based on sh-backup-lohout.hook that comes with iHook.
#

###
#
# Backup the contents of a folder
#
###

###
# Copyright (c) 2002 Regents of The University of Michigan.
# All Rights Reserved.
#
# Permission to use, copy, modify, and distribute this software and
# its documentation for any purpose and without fee is hereby granted,
# provided that the above copyright notice appears in all copies and
# that both that copyright notice and this permission notice appear
# in supporting documentation, and that the name of The University
# of Michigan not be used in advertising or publicity pertaining to
# distribution of the software without specific, written prior
# permission. This software is supplied as is without expressed or
# implied warranties of any kind.
#
# Research Systems Unix Group
# The University of Michigan
# c/o Wesley Craig
# 4251 Plymouth Road B1F2, #2600
# Ann Arbor, MI 48105-2785
###

set PATH=/bin:/usr/bin:/usr/local/bin:/sbin:/usr/sbin; export PATH

archiveday="Tuesday"
homedir="/Users/entity"
backupdir="/Volumes/aegir/backup"
snapdate="$backupdir/.snap-date"
snapdir="current-snapshot"
archivedir=`date "+archive-%Y-%m-%d"`

# Messages to stdout appear in the iHook window
echo "Preparing to backup $homedir..."

# ...except messages beginning with a % sign.
# This starts an indeterminate progress bar (barberpole):
echo "%10"
echo "%BEGINPOLE"

HALTREBOOT=`grep shutdown: /var/log/system.log | tail -1 | awk '{print $6}'`

if [ "x$HALTREBOOT" = "xreboot" ]; then
	echo "system rebooting, no backup.."
	sleep 1
	exit 0
fi

if [ ! -d "$backupdir" ]; then
	echo "Backup drive not attached, goodbye.."
	sleep 1
	exit 0
fi

# Tell the user we're creating the directory
if [ -f $snapdate ]; then
	SDATE=`cat $snapdate`
	echo "Last backup: $SDATE"
	sleep 1
fi

# start a determinate progress bar, while indicating
# we've created the new backup dir
echo "%30"

# update the message in the iHook window
echo "Backing up $homedir..."
echo "%BEGINPOLE"
echo "%OPENDRAWER"
rsync --stats -aE "${homedir}/" "$backupdir/$snapdir" 1>&2
if [ $? -ne 0 ]; then
    echo "Backup of $homedir failed."
    echo "%BEEP"
    sleep 1
    echo "%BEEP"
    sleep 1
    echo "%BEEP"
    exit 2
fi
sleep 2
echo "%60"

# we're done, fill the progress bar and remove it from the screen
today=`date "+%A"`
if [ "x$today" = "x$archiveday" ]; then
	echo "Since it\'s $archiveday, creating archive point..."
	echo "%65"
	echo "%CANCEL ENABLE"
	if [ -d $backupdir/$archivedir ]; then
		echo "Archive point for today already exists.."
		sleep 1
	else
		cp -R $backupdir/$snapdir $backupdir/$archivedir
	fi
else
	echo "%80"
fi
# update the message in the iHook window
date > $snapdate
echo "Backup complete."
echo "%100"
echo "%BEEP"
echo "%BEEP"

# wait a second, then exit
sleep 1

exit