build.gradle

/*
 * This build file was generated by the Gradle 'init' task.
 *
 * This generated file contains a sample Groovy project to get you started.
 * For more details take a look at the Groovy Quickstart chapter in the Gradle
 * user guide available at https://docs.gradle.org/4.1/userguide/tutorial_groovy_projects.html
 */

// Apply the groovy plugin to add support for Groovy
apply plugin: 'groovy'

// Apply the application plugin to add support for building an application
apply plugin: 'application'

// In this section you declare where to find the dependencies of your project
repositories {
    // Use jcenter for resolving your dependencies.
    // You can declare any Maven/Ivy/file repository here.
    jcenter()
}

dependencies {
    // Use the latest Groovy version for building this library
    compile 'org.codehaus.groovy:groovy-all:2.4.11'

    // Use the awesome Spock testing and specification framework
    testCompile 'org.spockframework:spock-core:1.0-groovy-2.4'
}

// Define the main class for the application
mainClassName = 'App'

// Define the output dir for groovy class-files, for later reference
sourceSets.main.groovy.outputDir = new File(buildDir, "classes/groovy/main")

println sourceSets.main.groovy.dump()

task uberjar(type: Jar) {

    // compile the groovy-files
    dependsOn build

    // Add the compiled groovy-class files
    from files(sourceSets.main.groovy.outputDir)

    // Add all files the application uses on runtime - UBERJAR MAGIC
    /*
     We need to make a "fat" jar,
     either it's this way, or
     using the gradle "SHADOW"-plugin
     */
    from configurations.runtime.asFileTree.files.collect { zipTree(it) }

    manifest {
        attributes(
            // Entry point in jar archive
            'Main-Class': 'App',
        )
    }
}