How to build Google protocol buffers and Kotlin using Gradle?

Question

I\'m trying to build a project that uses both Google protocol buffers and Kotlin using Gradle. I want the proto files to compile into Java source, which is then called from my K

Answer 1

if you are working with multiple build types and flavors in android and with protobuf-lite use below with kotlin.

for example I have debug and release builds with demo and prod flavors it will create demoDebug, demoRelease and prodDebug and prodRelease variants.

then use

`

android{
    sourceSets {
        debug.java.srcDirs += 'build/generated/source/proto/demoDebug/javalite'
        debug.java.srcDirs += 'build/generated/source/proto/prodDebug/javalite'
        release.java.srcDirs += 'build/generated/source/proto/demoRelease/javalite'
        release.java.srcDirs += 'build/generated/source/proto/prodRelease/javalite'
      }
    }

`

tie the different compileKotlin with generateProto

tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
  if (getName() == 'compileDemoDebugKotlin')
    dependsOn(':app:generateDemoDebugProto')
  if (getName() == 'compileDemoReleaseKotlin')
    dependsOn(':app:generateDemoReleaseProto')
  if (getName() == 'compileProdDebugKotlin')
    dependsOn(':app:generateProdDebugProto')
  if (getName() == 'compileProdReleaseKotlin')
    dependsOn(':app:generateProdReleaseProto')
}