How granular is Gradle’s compilation caching for Kotlin? E.g., if Gradle decides that a module in a multi-module project has to be recompiled, will it compile all files, or only those that need recompilation?

I think, this is related to your question: https://youtrack.jetbrains.com/issue/KT-24203

Well that’s different, avoidance is always per-module, whereas caching can potentially be done per-file.

I believe, in this case, as kotlin supports incremental compilation, only changed file would be recompiled

Thanks!