#!/bin/sh

date=`date +%Y%m%d_%H%M`

backpath=/System/LustreBackup
if ! [ -d $backpath ]; then
	mkdir -p $backpath
fi

backdir=${backpath}/SystemBackup

# If system has been backed up, just exit
if [ -d ${backdir} ]; then
	exit 0
fi

mkdir $backdir
chmod 700 $backdir

# create backup directory
mkdir -p $backdir/System/Library/Frameworks
mkdir -p $backdir/System/Library/Extensions
mkdir -p $backdir/usr/lib
mkdir -p $backdir/usr/include
mkdir -p $backdir/private/etc

# backup the old system
cp /mach_kernel $backdir/
cp -rf /System/Library/Frameworks/IOKit.framework $backdir/System/Library/Frameworks/
cp -rf /System/Library/Frameworks/Kernel.framework $backdir/System/Library/Frameworks/
cp -rf /System/Library/Frameworks/System.framework $backdir/System/Library/Frameworks/
cp -rf /System/Library/Extensions/System.kext $backdir/System/Library/Extensions/
cp -rf /usr/include/bsm $backdir/usr/include/bsm
cp -rf /usr/include/default_pager $backdir/usr/include/default_pager
cp -rf /usr/include/dev $backdir/usr/include/dev
cp -rf /usr/include/device $backdir/usr/include/device
cp -rf /usr/include/drivers $backdir/usr/include/drivers
cp -rf /usr/include/hfs $backdir/usr/include/hfs
cp -rf /usr/include/isofs $backdir/usr/include/isofs
cp -rf /usr/include/libkern $backdir/usr/include/libkern
cp -rf /usr/include/mach $backdir/usr/include/mach
cp -rf /usr/include/mach_debug $backdir/usr/include/mach_debug
cp -rf /usr/include/machine $backdir/usr/include/machine
cp -rf /usr/include/miscfs $backdir/usr/include/miscfs
cp -rf /usr/include/net $backdir/usr/include/net
cp -rf /usr/include/netat $backdir/usr/include/netat
cp -rf /usr/include/netinet $backdir/usr/include/netinet
cp -rf /usr/include/netinet6 $backdir/usr/include/netinet6
cp -rf /usr/include/netkey $backdir/usr/include/netkey
cp -rf /usr/include/nfs $backdir/usr/include/nfs
cp -rf /usr/include/pexpert $backdir/usr/include/pexpert
cp -rf /usr/include/ppc $backdir/usr/include/ppc
cp -rf /usr/include/profile $backdir/usr/include/profile
cp -rf /usr/include/sys $backdir/usr/include/sys
cp -rf /usr/include/ufs $backdir/usr/include/ufs
cp -rf /usr/include/vfs $backdir/usr/include/vfs
cp -f /usr/lib/libIOKit.A.dylib $backdir/usr/lib/libIOKit.A.dylib
cp -f /usr/lib/libIOKit.dylib $backdir/usr/lib/libIOKit.dylib
cp -f /usr/lib/libkmod.a $backdir/usr/lib/libkmod.a
cp -f /usr/lib/libkmodc++.a $backdir/usr/lib/libkmodc++.a
if [ -f /private/etc/sysctl.conf ]; then
	cp -f /private/etc/sysctl.conf $backdir/private/etc/sysctl.conf
fi

# record sysctem backup path of current installation 
# echo $backdir >> $backpath/lustre-current
# echo $date > $backdir/install_date