Gradle build scripts in Kotlin

build.gradle.kts

import org.gradle.jvm.tasks.Jar

plugins {
    application
    kotlin(module = "jvm")
}

repositories {
    jcenter()
}

dependencies {
    compile(kotlin(module = "stdlib"))
    compile("com.squareup.okio:okio:1.13.0")
}

// Define the configuration for the application convention
application {
    mainClassName = "io.bdawg.kotlin.gradlekt.EntrypointKt"
}

// Defining my own execution task
val customRun by tasks.creating(JavaExec::class) {
    main = "io.bdawg.kotlin.gradlekt.EntrypointKt"
    classpath = java.sourceSets["main"].runtimeClasspath
}

// Creating a single fat jar including all dependencies
val fatJar by tasks.creating(Jar::class) {
    baseName = "${project.name}-fat"
    manifest {
        attributes["Main-Class"] = "io.bdawg.kotlin.gradlekt.EntrypointKt"
    }
    // Import all of our runtime dependencies
    from(configurations.runtime.map { if (it.isDirectory) it else zipTree(it) })
    // Import our project classes using the gradle-provided `jar` task
    with(tasks["jar"] as CopySpec)
}