build.gradle.kts

import org.jetbrains.kotlin.gradle.tasks.KotlinCompile

plugins {
    kotlin("jvm") version "2.1.0"
}

group = "de.jensklingenberg"
version = "1.0-SNAPSHOT"

repositories {
    mavenCentral()
}

dependencies {
    implementation("org.jetbrains.kotlin:kotlin-scripting-jsr223:2.1.0")
    implementation(kotlin("stdlib-jdk8"))
    implementation(kotlin("reflect"))
    implementation(kotlin("script-runtime"))
    implementation(kotlin("compiler-embeddable"))
    implementation(kotlin("scripting-compiler-embeddable"))
    testImplementation(kotlin("test"))
    runtimeOnly("org.jetbrains.kotlin:kotlin-scripting-jsr223:2.1.0")
}

val mainClass = "de.jensklingenberg.folders2kt.StartKt" // replace it!

tasks {
    register("fatJar", Jar::class.java) {
        archiveClassifier.set("all")
        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
        manifest {
            attributes("Main-Class" to mainClass)
        }
        from(configurations.compileClasspath.get()
            .onEach { println("add from dependencies: ${it.name}") }
            .map { if (it.isDirectory) it else zipTree(it) })
        from(configurations.runtimeClasspath.get()
            .onEach { println("add from dependencies: ${it.name}") }
            .map { if (it.isDirectory) it else zipTree(it) })
        val sourcesMain = sourceSets.main.get()
        sourcesMain.allSource.forEach { println("add from sources: ${it.name}") }
        from(sourcesMain.output)
    }
}
java {
    sourceCompatibility = JavaVersion.VERSION_1_8
    targetCompatibility = JavaVersion.VERSION_1_8
}
tasks.test {
    useJUnit()
}

tasks.withType<KotlinCompile>() {
    kotlinOptions.jvmTarget = "1.8"
}