build.gradle for Kotlin Apache Beam

build.gradle

buildscript {
    ext.kotlin_version = '1.3.41'
    ext.beam_version = '2.19.0'
    repositories {
        mavenCentral()
    }

    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

plugins {
    id "java"
    id "application"
    id "org.jetbrains.kotlin.jvm" version "1.3.41"
}

sourceCompatibility = "1.8"

application {
    def className = project.hasProperty("mainClass") ? getProperty("mainClass") : "MyPipeline"
    mainClassName = "com.example.${className}"
}

repositories {
    mavenCentral()
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation "org.jetbrains.kotlin:kotlin-test-junit:$kotlin_version"

    implementation "org.slf4j:slf4j-simple:1.7.26"
    implementation "org.apache.beam:beam-sdks-java-core:$beam_version"
    implementation "org.apache.beam:beam-sdks-java-extensions-sorter:$beam_version"
    implementation "org.apache.beam:beam-runners-direct-java:$beam_version"
    implementation "org.apache.beam:beam-runners-google-cloud-dataflow-java:$beam_version"

    testCompile "junit:junit:4.11"
}

run {
    if (project.hasProperty("args")) {
        args project.args.split("\\s")
    }
}

gradle run -Pargs="--runner=DirectRunner --paramName=fooBar"