#!/bin/sh
# Check UID
if [ ${EUID} -ne 0 ]; then
	echo "Must run this command under sudo"
	exit;
fi

# Test existence of previous image
if [ -f ~/Desktop/BackupDVD.dmg ]; then
	echo "BackupDVD.dmg already exists.  Please remove."
	exit;
fi

# Play nice with the other processes
renice +1 $$

# Create image
echo "Creating DVD image"
hdiutil create ~/Desktop/BackupDVD.dmg -sectors 9179656 -volname BackupDVD -type UDIF -fs HFS+

# Mount image
echo "Mounting DVD image"
MOUNTPOINT=`hdiutil attach ~/Desktop/BackupDVD.dmg -readwrite | grep BackupDVD | awk '{print $1}'`
if [ ! -d /Volumes/BackupDVD ]; then
	echo "BackupDVD did not mount where expected."
	exit;
fi

# Copy files
echo "Copying /var/cvs"
mkdir -p /Volumes/BackupDVD/var/cvs
cp -R /var/cvs/* /Volumes/BackupDVD/var/cvs

echo "Building homedir manifest"
# Movies, Music, Pictures (multimedia) get backed up separately (by hand)
# Data (disk images and large temp files) gets backed up separately, if at all
# Certivo Code is in cvs
# No trash folders
# No cache
# Public is just stuff from other folders shared out to P2P
find . \! -name BackupDVD.dmg -and \
       \! -path './Data/*' -and \
       \! -path './Code/Certivo*' -and \
       \! -path './.Trash/*' -and \
       \! -path '*/Warez/*' -and \
       \! -path './Movies/*' -and \
       \! -path './Library/Caches/*' -and \
       \! -path './Music/*' -and \
       \! -path './Pictures/*' -and \
       \! -path './Public/*' \
       > manifest.txt
mkdir -p /Volumes/BackupDVD/Users/enigma

echo "Copying homedir files"
hfstar -c -T manifest.txt --no-recursion -f - | hfstar -xv -C /Volumes/BackupDVD/Users/enigma
# Unmount image
echo "Dismounting image"
hdiutil detach ${MOUNTPOINT} > /dev/null
echo "Done"