#!/bin/sh

f=/mod/etc/sweeper.conf
if [ -f $f ]; then
	sum=`/mod/bin/busybox/md5sum $f | awk '{print $1}'`
	if [ "$sum" = "a22cb1379fb9c58ae549dead9695eebe" ]; then
		rm -f $f
	fi
fi

if [ ! -f $f ]; then
	if [ -f $f~ ]; then
		cp $f~ $f
	elif [ -f "$f-opkg.backup" ]; then
		cp "$f-opkg.backup" $f
	fi
fi

[ -f /mod/.swschema ] && schema=`cat /mod/.swschema` || schema=1

echo "Current Sweeper schema: $schema"

case $schema in
    1)
	# Upgrade folder rules
	echo "Upgrading sweeper rules for folder series."
	(echo /mod/etc/sweeper.conf; find /media -follow -name .sweeper) \
	    | while read f; do
		[ -f "$f" ] || continue
		echo "Processing $f..."
		sed -e 's/^folder /& series "" /' -i "$f"
	done
	;;
    1|2)
	# Upgrade fflag arguments
	echo "Upgrading sweeper rules for folder flags"
	(echo /mod/etc/sweeper.conf; find /media -follow -name .sweeper) \
	    | while read f; do
		[ -f "$f" ] || continue
		echo "Processing $f..."
		sed -e '
			s/fflag autoshrinkr/fflag autoshrinkR/
			s/fflag autodecryptr/fflag autodecryptR/
		' -i "$f"
	done
	;;
esac

echo 3 > /mod/.swschema

exit 0