Debugging a Scala project (IntelliJ Idea 12 and sbt)

Question

I've seen a few articles describing how to debug Scala applications, but nevertheless I want to ask it again due to the reason that all those articles are outdated and all things change very quickly in Scala world.

I use IntelliJ Idea 12 + sbt (not a plugin, a plugin doesn't work for some reason).

So how do I do that nowadays ?

Answer 1

IMO, you are best off keeping SBT and Intellij separate, as they are two different concerns. One is for building, and the other is for developing.

Here are the steps that I typically go through to get a solid Scala/Intellij development environment up and running for a new Scala project.

• Step 1: Install Scala Intellij Plugin
• Step 2: Create a simple sbt project - details here
• Step 3: Add the fantastic sbt-idea plugin to your sbt config
• Step 4: sbt gen-idea
• Step 5: Open project in Intellij 12
• Enjoy debugging, syntax highlighting, code assist and all of the other nice IJ features.

On the sbt side, I typically keep a terminal open, with sbt running so that I can rapidly test things outside the context of Intellij.

HTH