Has anyone used Kotlin DSL with Google's Protobuf? I'm unable to "translate" the

protobuf

plug-in from Gradle. This is what I got so far:

configure<ProtobufConfigurator> { //protobuf
  generatedFilesBaseDir = "$projectDir/build/generated"

  //generateProtoTasks {
  //  all() * . plugins {
  //    grpc { option "enable_deprecated = false" }
  //  }
  //}
  generateProtoTasks({ ??? })

  //plugins {
  //  grpc { artifact = "io.grpc:protoc-gen-grpc-java:${grpc_version}" }
  //}

  //  protoc {
  //    artifact = "com.google.protobuf:protoc:3.3.0"
  //  }
}

Thanks, @gildor! That will nail it! I think I don't understand, at all, the closures thing...thanks again!

“closure things” there are because protobuf plugin provides only API based on Groovy’s Closure class + dynamic properties. To work better with Kotlin plugin should provide

Action<T>

based API. kotlin-dsl provides few helper functions like delegateClosureOf to work with Groovy

Closure

class and

setProperty

and

invokeMethod

to work with dynamic properties and methods of closure

Another pretty annoying issue I'm facing is that whenever I run

./gradlew clean build

I'm getting a lot of `Unresolve reference: blah blah`; I think it's because

compileKotlin

runs before

generateProto

and it can't find the "generated" classes/stubs from gRPC. Are you facing the same?

I also have this:

java.sourceSets["main"].java {
    val gen = protobuf.protobuf.generatedFilesBaseDir
    srcDirs += files("$gen/main/java", "$gen/main/grpc")
}

Yeah, I get it, but it would be nice if it works like in a Java project out-of-the-box...I'm trying not to put anything "custom"

I think it’s a problem of protobuf gradle plugin

Maybe...but I only get the issues when I "switch" the project into a Kotlin-powered one ― I've tried with Gradle and Kotlin DSL. So I'm guessing it should be something related with Kotlin and the way Gradle works with it.

I think that they just depends on javaCompileTask.