Support better directory structure about sbt-eta HOT 3 CLOSED

In this particular case, it would make sense to disable javac building altogether and add the following to the cabal file -

java-sources: src/main/java/Main.java

or

java-sources: src/main/eta/Main.java

Whichever was preferred (the latter of which would not require disabling or changing when the javac build happens).

from sbt-eta.

I always forget this, but the Main.java probably needs to go in the src/main/eta directory. Build tools usually try to compile all of the src/main/java sources with just javac and before any other sources, so if Main.java references anything from src/main/eta it'll fail to compile. Maybe sbt is different, but either way this is a potential gotcha.

from sbt-eta.

So in these inter-project setups, there's always the question of where the dependencies flow. SBT has a mechanism which allows you to select whether you want to compile Scala or Java dependencies first. We probably need to add a new option that chooses the order among, Java, Scala, Eta (in case anybody wants such complicated setups).

from sbt-eta.