Add support for Scala 3

[pikinier20]

Re-created the pull request to fire CI.

Continuation of #428

[pikinier20]

The CI failed because munit 0.7.25 for Scala 3 was compiled against java 11. Most likely it was by mistake because the newest munit is compiled against Java 8

[ckipp01]

Thanks for following up with this @pikinier20!

The CI failed because munit 0.7.25 for Scala 3 was compiled against java 11. Most likely it was by mistake because the newest munit is compiled against Java 8

Ahh are you referring to 0.7.29? If so, feel free to just replace all the references of 0.7.25 to 0.7.29 then, especially if it will fix the CI for the 8 run.

EDIT: Let me update the deps, then you should be able to just rebase.

[ckipp01]

Do you think instead of just checking to see if it's enabled here we should also check that it's not an older version of dotc? If not, they might end up thinking this will work and it will set -coverage-out but not do anything.

[ckipp01]

Nice everything looks 🟢 ! I think if we can change this up to be more precise, we can get this merged in.

[pikinier20]

Thanks for following up with this @pikinier20!

The CI failed because munit 0.7.25 for Scala 3 was compiled against java 11. Most likely it was by mistake because the newest munit is compiled against Java 8

Ahh are you referring to 0.7.29? If so, feel free to just replace all the references of 0.7.25 to 0.7.29 then, especially if it will fix the CI for the 8 run.

EDIT: Let me update the deps, then you should be able to just rebase.

I've already force-pushed branch with updated deps. Now there's some problem with resolving source paths. I'm not sure what exactly went wrong

[pikinier20]

The issue present on CI is reproducible locally. It looks strange: the plugin works under java 11+ but doesn't work under java 8. Something "eats" part of the path: instead of:
sbt-scoverage/src/sbt-test/scoverage/scala3-good/src/main/scala/
we get sbt-scoverage/src/sbt-test/scoverage/src/main/scala/GoodCoverage.scala

It looks like the directory in which the project is present, is missing :/

EDIT with further investigations:
The scoverage.coverage file generated after running tests is different between java 1.8 and 11.
The heading with file name on java 1.8: ../src/main/scala/GoodCoverage.scala.
The heading with file name on java 11: src/main/scala/GoodCoverage.scala.

[pikinier20]

I think it's the problem with compiler option. I removed the plugin, set the flag manually and ran tests. The behavior is the same: on java 1.8 it produces wrong source paths.

[ckipp01]

Thanks a lot for sending this in @pikinier20!