Add if condition to cp friesian jar and zip to dist (#4930)

Author: hkvision

scala/make-dist.sh

@@ -75,6 +75,10 @@ cp -r $BASEDIR/dllib/target/bigdl-dllib-*-jar-with-dependencies.jar $DIST_DIR/li
 cp -r $BASEDIR/dllib/target/bigdl-dllib-*-python-api.zip $DIST_DIR/lib
 cp -r $BASEDIR/orca/target/bigdl-orca-*-jar-with-dependencies.jar $DIST_DIR/lib
 cp -r $BASEDIR/orca/target/bigdl-orca-*-python-api.zip $DIST_DIR/lib
-cp -r $BASEDIR/friesian/target/bigdl-friesian-*-jar-with-dependencies.jar $DIST_DIR/lib
-cp -r $BASEDIR/friesian/target/bigdl-friesian-*-python-api.zip $DIST_DIR/lib
+if [ -f $BASEDIR/friesian/target/bigdl-friesian-*-jar-with-dependencies.jar ]; then
+    cp -r $BASEDIR/friesian/target/bigdl-friesian-*-jar-with-dependencies.jar $DIST_DIR/lib
+fi
+if [ -f $BASEDIR/friesian/target/bigdl-friesian-*-python-api.zip ]; then
+    cp -r $BASEDIR/friesian/target/bigdl-friesian-*-python-api.zip $DIST_DIR/lib
+fi
 cp -r $BASEDIR/dllib/src/main/resources/spark-bigdl.conf $DIST_DIR/conf