cats-effect-* is broken in the community build after bump to 3.0.0-RC1

[griggt]

Looks like a flaw in the build files somewhere, I have not looked further

Error:  scala.MatchError: 3.0.0-RC1-bin-SNAPSHOT (of class java.lang.String)
Error:  Use 'last' for the full log.
Error:  Test dotty.communitybuild.CommunityBuildTestB.catsEffect2 failed

[griggt]

It seems as if the bug is in the sbt-spiewak plugin. Should we just disable these two projects in the CB until it's fixed?

3.0.0-RC1-bin-SNAPSHOT isn't handled by:

https://github.com/djspiewak/sbt-spiewak/blob/c438ee9552d0382b4ef14eb9d13011cc0dc208e7/core/src/main/scala/sbtspiewak/FullScalaVersion.scala#L20-L47

[griggt]

Daniel kindly cut a new 0.18.1 release of sbt-spiewak containing a fix, however it's built with sbt 1.4.x (as are all versions >= 0.16.0)

@smarter are there still blockers on updating the build to use sbt 1.4?

[anatoliykmetyuk]

Currently, we are a bit loaded by the final push for RC1. So far dropping Cats is the easiest solution FTTB. If there are indeed blockers for 1.4, bump to 1.4 before RC1 would unlikely be a priority. External help and PRs are always welcome ;)

[smarter]

I'm working on the 1.4 upgrade.

[smarter]

I took care of the 1.4 upgrade but I don't plan to work on restoring cats-effect in the community build, @anatoliykmetyuk is still the maintainer of the community build.

[griggt]

I've opened dotty-staging/cats-effect#2 to demonstrate the change needed to permit re-enabling cats-effect-2 in the community build. It's as simple as updating the version of the sbt-spiewak-sonatype plugin. The same can be done for cats-effect-3.