How to generate hierarchy/UML diagram with Play 2.2.x?

Question

I know you can use scaladoc itself to generate hierarchy diagrams but how do I use play doc to do that?

Answer 1

You can add following line to the build.sbt to have diagrams generated by the way of doc task.

scalacOptions in Compile in doc += "-diagrams"

If you'd like, you can pass arbitrary parameters, like for example

scalacOptions in Compile in doc ++= Seq("-diagrams", "-diagrams-max-classes", "30")

PS. Make sure that you have the dot program installed.