Change environment variable name to PROJECT_PATH

bin/compile

@@ -4,37 +4,30 @@
 BUILD_DIR=${1:-}
 CACHE_DIR=${2:-}
 ENV_DIR=${3:-}
-BP_DIR=$(cd $(dirname ${0:-}); cd ..; pwd)
 
-echo "BUILD_DIR: $BUILD_DIR"
-echo "CACHE_DIR: $CACHE_DIR"
-echo "ENV_DIR: $ENV_DIR"
-# echo "BP_DIR: $BP_DIR"
-# ls $ENV_DIR
-
-if [ -f $ENV_DIR/BUILDPACK_PATH ]; then
-	BUILDPACK_PATH=`cat $ENV_DIR/BUILDPACK_PATH`
-	if [ -d $BUILD_DIR/$BUILDPACK_PATH ]; then
-		echo "-----> Subdir buildpack in $BUILDPACK_PATH"
+if [ -f $ENV_DIR/PROJECT_PATH ]; then
+	PROJECT_PATH=`cat $ENV_DIR/PROJECT_PATH`
+	if [ -d $BUILD_DIR/$PROJECT_PATH ]; then
+		echo "-----> Subdir buildpack in $PROJECT_PATH"
 		echo "       creating cache: $CACHE_DIR"
 		mkdir -p $CACHE_DIR
 		TMP_DIR=`mktemp -d $CACHE_DIR/subdirXXXXX`
 		echo "       created tmp dir: $TMP_DIR"
-		echo "       moving working dir: $BUILDPACK_PATH to $TMP_DIR"
-	 	cp -R $BUILD_DIR/$BUILDPACK_PATH/. $TMP_DIR/
+		echo "       moving working dir: $PROJECT_PATH to $TMP_DIR"
+		cp -R $BUILD_DIR/$PROJECT_PATH/. $TMP_DIR/
 	 	echo "       cleaning build dir $BUILD_DIR"
 		rm -rf $BUILD_DIR
 		echo "       recreating $BUILD_DIR"
 		mkdir -p $BUILD_DIR
 		echo "       copying preserved work dir from cache $TMP_DIR to build dir $BUILD_DIR"
-		cp -Rv $TMP_DIR/. $BUILD_DIR/
+		cp -R $TMP_DIR/. $BUILD_DIR/
 		echo "       cleaning tmp dir $TMP_DIR"
 		rm -rf $TMP_DIR
 		exit 0
 	fi
 fi
 
-echo "BUILDPACK_PATH is undefined"
+echo "PROJECT_PATH is undefined"
 exit 1