#!/bin/sh

#BASE=`pwd`
#echo $BASE
BW=build_warp
ROOT_DIR=$BW/root

#Only copy the directories from nfs if they are not empty.
#They will always exist at least as mount points
#Backup directories used for flash, if they exist
if [ -n "`ls $ROOT_DIR/persistent/* 2>/dev/null`" ]; then \
	if [ -d $BW/persistent ]; then \
		# We're not going to create endless backups
		rm -rf $BW/persistent_backup; \
		mv $BW/persistent $BW/persistent_backup; \
	fi; \
	mv $ROOT_DIR/persistent $BW 2>/dev/null; \
else
	mkdir -p $BW/persistent; \
fi

if [ -n "`ls $ROOT_DIR/persistent1/* 2>/dev/null`" ]; then \
	if [ -d $BW/persistent1 ]; then \
		# We're not going to create endless backups
		rm -rf $BW/persistent1_backup; \
		mv $BW/persistent1 $BW/persistent1_backup; \
	fi; \
	mv $ROOT_DIR/persistent1  $BW 2>/dev/null; \
else
	mkdir -p $BW/persistent1; \
fi
if [ -n "`ls $ROOT_DIR/persistent2/* 2>/dev/null`" ]; then \
	if [ -d $BW/persistent2 ]; then \
		# We're not going to create endless backups
		rm -rf $BW/persistent2_backup; \
		mv $BW/persistent2 $BW/persistent2_backup; \
	fi; \
	mv $ROOT_DIR/persistent2  $BW 2>/dev/null; \
else
	mkdir -p $BW/persistent2; \
fi


#Recreate the directories because they're needed as mount points
mkdir -p $ROOT_DIR/persistent
mkdir -p $ROOT_DIR/persistent1
mkdir -p $ROOT_DIR/persistent2

#Fix rc.S and fstab so that all persistent directories are mounted
sed -i 's:^#\(/bin/mount.*persistent\):\1:' $ROOT_DIR/etc/rc.S 2>/dev/null
sed -i 's:^#\(/dev/mtdblock7.*persistent1.*\):\1:' $BW/persistent/etc/fstab 2>/dev/null
sed -i 's:^#\(/dev/mtdblock8.*persistent2.*\):\1:' $BW/persistent/etc/fstab 2>/dev/null

echo "Moved persistent from nfs to flash"