How to disable scip generation for Scala 3 and/or Scala.js in a cross-built project?

[yoohaemin]

Hi, thanks for the great project.
I recently switched one of my projects from sbt to mill, and added sourcegraph.yml for github actions (copied over from here), and it works really well.
However I noticed that it tries to build semanticdb for the whole matrix for pure cross-built projects. Doing it for a scala.js project is unnecessary, and the Scala 3 one is apparently less featureful (https://sourcegraph.github.io/scip-java/docs/getting-started.html#scala).

Could you provide a hint to update the CI script so that it doesn't do redundant work?
https://github.com/yoohaemin/decrel/blob/master/.github/workflows/sourcegraph.yml

Example run: https://github.com/yoohaemin/decrel/actions/runs/4459131729/jobs/7831389763?pr=52
My repo: https://github.com/yoohaemin/decrel

[ckipp01]

Hey @yoohaemin! Good question. There currently actually isn't a way to do this. I wanted to avoid users having to add anything to their build to use this and the easiest way to accomplish this was to just do

    ev.rootModule.millInternal.modules.collect { case j: JavaModule => j }

The negative part of this is that it just grabs everything. There is a couple things that we could do here:

1. Add an exclusion list to generate which would filter out any named modules
2. Add an includes list to generate which tells it which to include

Not fully sure which would be best without really exploring it.

[yoohaemin]

Gotcha.
I think we do want to have this much flexibility right? Maybe I can come up with a PR that adds both exclude and include-only list (since I also don't have visibility on what's a better one).