#!/bin/bash

PARENTDIR=$PWD
echo "Working in $PARENTDIR"
if [[ ! -d .git ]]; then
	echo "Current directory does not contain a .git folder.  Exiting..."
	exit 1
fi
git pull
git reset --hard HEAD
git clean -d -x -f

exec 3< submodules
while read <&3
do
	cd $PARENTDIR
	DIR2UPDATE=$REPLY
	if [[ $DIR2UPDATE != "" ]]; then
		echo "Attempting to reset submodule $DIR2UPDATE"
		cd $PARENTDIR/$DIR2UPDATE/..
		while [[ ! -d .git ]]; do
			cd ../
		done
		git submodule init
		git submodule update
		cd $PARENTDIR/$DIR2UPDATE
		git reset --hard HEAD
		git clean -d -x -f
		git checkout master
		git pull
		cd ..
		while [[ ! -d .git ]]; do
			cd ../
		done
		echo "Committing changes to $PWD"
		git commit -a -m "Reset submodule to latest HEAD"
		git push origin master
	fi
done
exec 3>&-