#! /bin/bash
#
rev_new_raw=$(svnversion -n . 2>/dev/null | tr '\n' ' ' | tr -d '\r')
[ -n "$rev_new_raw" ] || rev_new_raw=$(SubWCRev . 2>/dev/null | tr '\n' ' ' | tr -d '\r')


rev_new_raw=$(echo $rev_new_raw | sed 's/[^0-9]*\([0-9]*\)\(.*\)/\1 \2/')
rev_new=0
a=$(echo $rev_new_raw | sed 's/\([0-9]*\).*/\1/')
let "a+=0"
#find max rev
while [ "$a" ]; do
	[ "$a" -gt "$rev_new" ] && rev_new=$a
	rev_new_raw=$(echo -n $rev_new_raw | sed 's/[0-9]*[^0-9]*\([0-9]*\)\(.*\)/\1 \2/')
	a=$(echo $rev_new_raw | sed 's/\([0-9]*\).*/\1/') 
done

rev_old=$(cat ./source/svnrev.c 2>/dev/null | tr -d '\n' | sed 's/[^0-9]*\([0-9]*\).*/\1/')

if [ "$rev_new" != "$rev_old" ] || [ ! -f ./source/svnrev.c ]; then
	
	cat <<EOF > ./source/svnrev.c
#define SVN_REV "$rev_new"

const char *GetRev()
{
	return SVN_REV;
}
EOF

	if [ -n "$rev_new" ]; then
		echo "Changed Rev $rev_old to $rev_new" >&2
	else
		echo "svnrev.c created" >&2
	fi
	echo >&2
fi
echo $a