How do I create an executable fat jar with Gradle with implementation dependencies

Question

I\'ve got a simple project in Gradle 4.6 and would like to make an executable jar of it. I\'ve tried shadow, gradle-fatjar-plugin, gradle-one

Answer 1

Kotlin 1.3.72 & JVM plugin, Gradle 6.5.1

Syntax is changing quickly in all these platforms

tasks {
    compileKotlin {
        kotlinOptions.jvmTarget = "1.8"
    }
    compileTestKotlin {
        kotlinOptions.jvmTarget = "1.8"
    }
    val main = sourceSets.main.get()
    //TODO
    register("buildFatJar") {
        group = "app-backend"
        dependsOn(build)
        // shouldRunAfter(parent!!.tasks["prepCopyJsBundleToKtor"]) -> This is for incorporating KotlinJS gradle subproject resulting js file.
        manifest {
            attributes["Main-Class"] = "com.app.app.BackendAppKt"
        }

        from(configurations.compileClasspath.get().files.map { if (it.isDirectory) it else zipTree(it) })
        with(jar.get() as CopySpec)
        archiveBaseName.set("${project.name}-fat")
    }
}