Example gradle build file using kotlin dsl

build.gradle.kts

// Gradle version 4.3.1 and kotlin dsl 0.12.3
// Kotlin 1.1.60
import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
import org.jetbrains.kotlin.gradle.dsl.Coroutines

group = "com.example"
version = "1.0-SNAPSHOT"

buildscript {
    val kotlinVersion: String by extra { "1.1.60" }
    val junitPlatformVersion: String by extra { "1.0.2" }

    repositories {
        mavenCentral()
    }

    dependencies {
        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
        classpath("org.junit.platform:junit-platform-gradle-plugin:$junitPlatformVersion")
    }
}

repositories {
    mavenCentral()
    jcenter()
    maven {
        setUrl("https://dl.bintray.com/kotlin/exposed")
    }
    maven {
        setUrl("https://dl.bintray.com/kotlin/ktor")
    }
    maven {
        setUrl("https://dl.bintray.com/kotlin/kotlinx")
    }
}

plugins {
    application
    java
    kotlin("jvm") version "1.1.60"
}

apply {
    plugin("org.junit.platform.gradle.plugin")
}

java {
    sourceCompatibility = JavaVersion.VERSION_1_8
    targetCompatibility = JavaVersion.VERSION_1_8
}

application {
    mainClassName = "web.MainKt"
}

kotlin {
    experimental.coroutines = Coroutines.ENABLE
}

val kotlinVersion: String by extra { "1.1.60" }
val junitPlatformVersion: String by extra { "1.0.2" }
val junitJupiterVersion: String by extra { "5.0.2" }
val commonsLoggingVersion: String by extra { "1.2" }
val slf4jVersion: String by extra { "1.7.21" }
val logbackVersion: String by extra { "1.1.7" }
val fuelVersion: String by extra { "1.12.0" }
val exposedVersion: String by extra { "0.9.1" }
val ktorVersion: String by extra { "0.9.0" }
val h2Version: String by extra { "1.4.196" }

dependencies {
    compile(kotlin("stdlib-jre8", kotlinVersion))
    compile("commons-logging:commons-logging:$commonsLoggingVersion")
    compile("org.slf4j:slf4j-api:$slf4jVersion")
    compile("ch.qos.logback:logback-classic:$logbackVersion")
    compile("com.github.kittinunf.fuel:fuel:$fuelVersion")
    compile("org.jetbrains.exposed:exposed:$exposedVersion")
    compile("io.ktor:ktor-server-core:$ktorVersion")
    compile("io.ktor:ktor-server-netty:$ktorVersion")

    // compile(kotlin("reflect", kotlinVersion))
    // testCompile(kotlin("test", kotlinVersion))
    // testCompile(kotlin("test-junit", kotlinVersion))

    testCompile("org.junit.platform:junit-platform-runner:$junitPlatformVersion")
    testCompile("org.junit.jupiter:junit-jupiter-api:$junitJupiterVersion")
    testCompile("com.h2database:h2:$h2Version")

    testRuntime("org.junit.jupiter:junit-jupiter-engine:$junitJupiterVersion")
}

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

task<Wrapper>("wrapper") {
    gradleVersion = "4.3.1"
}