build.gradle

plugins {
    id 'java'
    id 'org.jetbrains.kotlin.jvm' version '1.3.31'
}

group 'bit-aes'
version '1.0'

sourceCompatibility = 1.8

repositories {
    mavenCentral()
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
    testCompile group: 'junit', name: 'junit', version: '4.12'
}

compileKotlin {
    kotlinOptions.jvmTarget = "1.8"
}
compileTestKotlin {
    kotlinOptions.jvmTarget = "1.8"
}

jar {
    manifest {
        attributes 'Main-Class': 'cz.martinforejt.bit.aes.MainKt'
    }

    // This line of code recursively collects and copies all of a project's files
    // and adds them to the JAR itself. One can extend this task, to skip certain 
    // files or particular types at will
    from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
}

task runAES(type: JavaExec) {
    main = "cz.martinforejt.bit.aes.MainKt"
    classpath = sourceSets.main.runtimeClasspath
}