hello! I’m trying to split up our protobuf module to produce two separate artifacts - Java+Reactor a...

# gradle

[Dariusz Kuc]

hello! I’m trying to split up our protobuf module to produce two separate artifacts - Java+Reactor and Kotlin specific (currently it builds single artifact with optional dependencies for both). My project setup

- build.gradle.kts // [1] root builds java artifact
- src
  - main/java - some common utils here
  - main/resources - some common resources
  - main/proto
- kotlin-specific
  - build.gradle.kts [2] builds kotlin artfiact with some sources from [1]
  - src/main/kotlin - kotlin specific utils

Whats the proper way to reference sources/resources from root [1] in my kotlin specific build [2]? e.g. I could do something like

sourceSets {
    main {
        java.srcDir("${rootProject.java}/src/main/java")
    }
}

but wondering if there is a better way

[araqnid]

Surely you just want to declare your root project as an api dependency of the kotlin-specific project?

dependencies {
  api(project(":"))
}

Then it will be published as a compile-time dependency rather than duplicating the classes

[Dariusz Kuc]

actually I don’t

[Dariusz Kuc]

my root project will contain some auto generated code that is Java specific and brings in some dependencies that I don’t care about (ie. reactor)

[Dariusz Kuc]

library most just generates protos
• root -> plain Java + reactor support
• kotlin -> kotlin specific (currently requires plain Java), i.e. coroutine support + DSL builders

[araqnid]

I’d split it into common, java/reactor and kotlin/coroutine artifacts

[Dariusz Kuc]

unsure if there is going to be anything in common, all the grpc plugin examples use protobuf setup that always rely on java lib and then adds separate generators (i.e. unsure if i can pull the generated base java sources to a common artifact, guess can try)

[Dariusz Kuc]

Oo https://youtrack.jetbrains.com/issue/IDEA-210311#focus=streamItem-27-3407352.0-0

[Dariusz Kuc]

same file cannot be part of multiple modules

[Dariusz Kuc]

*at least in IDEA

[Dariusz Kuc]

so this is troublesome as I need to share protos between java + kotlin project

[araqnid]

if you’re generating the source files in Gradle anyway, you could have two protobuf tasks- one generates them with the grpc plugin (in your Java project) and one without (in your Kotlin project)

[araqnid]

then there would be two distinct sets of sources to avoid confusing idea

[Dariusz Kuc]

generated sources would be different but resources (proto files) are shared and this confuses idea