widgetset compilation by Maven to build vaadin portlets

I have got a system going wherein I am able to build portlets using maven as per the documentation.

Each time I issue the command

mvn clean install liferay:deploy

This causes the widgetsets to be rebuilt all over again. But I do not want the widget set compilation each time I change a line of code. Presently, this whole process takes almost 10 minutes greatly reducing my productivity. Is there a way to circumvent widgetset recompilation each time?

I tried
mvn clean compile liferay:deploy
and even that compiles the widgetsets.