Invoke generate scaladoc from bash Follow

Hello,

I'm trying to build a unique scaladoc from a multi-module maven project and the best solution I've found so far is generating it with Intellij.

The problem is that I don't know how to automatize the process in order to run it from a CI environment.

Is there a way to invoke the functionality from a command line?

I know I can probably do it with sbt-unidoc, but after spending two days trying to mimic what Apache Spark guys do, I gave up.

Thank you in advance.