Building a self-executable jar with Gradle and Kotlin

Question

I\'ve written a simple kotlin source file in order to get started, and a gradle script file. But I can\'t figure out how to add the main func to the manifest, so that the ja

Answer 1

If using Gradle with the Kotlin DSL, then my duplicate question has an answer of:

import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar

plugins {
    kotlin("jvm") version "1.2.51"
    id("com.github.johnrengelman.shadow") version "2.0.4"
}

group = "xxx.yyy"
version = "1.0-SNAPSHOT"

repositories {
    mavenCentral()
}

dependencies {
    implementation(kotlin("stdlib-jdk8"))
}

tasks.withType {
    kotlinOptions.jvmTarget = "1.8"
}

tasks.withType {

    manifest.attributes.apply {
        put("Implementation-Title", "Gradle Jar File Example")
        //put("Implementation-Version" version)
        put("Main-Class", "HelloKotlinWorld.App")
    }

Which is, I think, the simplest solution. Oh, perhaps you're using just Kotlin itself and not the DSL.