Basic gradle kts script for a Spring Boot 2.1 application

build.gradle.kts

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

plugins {
	id("org.springframework.boot") version "2.1.8.RELEASE"
	id("io.spring.dependency-management") version "1.0.8.RELEASE"
	kotlin("jvm") version "1.3.50"
	kotlin("plugin.spring") version "1.3.50"
}

group = "de.roamingthings"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_1_8

val developmentOnly by configurations.creating
configurations {
	runtimeClasspath {
		extendsFrom(developmentOnly)
	}
}

repositories {
	mavenCentral()
}

dependencies {
	implementation("org.springframework.boot:spring-boot-starter-actuator")
	implementation("org.springframework.boot:spring-boot-starter-data-mongodb")
	implementation("org.springframework.boot:spring-boot-starter-web")

	implementation("com.fasterxml.jackson.module:jackson-module-kotlin")

	implementation("org.jetbrains.kotlin:kotlin-reflect")
	implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")

	developmentOnly("org.springframework.boot:spring-boot-devtools")

	testImplementation("org.springframework.boot:spring-boot-starter-test")
	testImplementation("de.flapdoodle.embed:de.flapdoodle.embed.mongo")
	testImplementation("org.junit.jupiter:junit-jupiter")

	testCompile("org.assertj:assertj-core")
	testCompile("org.mockito:mockito-core")
	testCompile("org.mockito:mockito-junit-jupiter")
}

tasks.withType<KotlinCompile> {
	kotlinOptions {
		freeCompilerArgs = listOf("-Xjsr305=strict")
		jvmTarget = "1.8"
	}
}

tasks.test {
	useJUnitPlatform()
	testLogging {
		events("passed", "skipped", "failed")
	}
}

gradle.properties

assertj.version=3.13.2
junit-jupiter.version=5.5.2
kotlin.version=1.3.50
mockito.version=3.0.0

settings.gradle.kts

rootProject.name = "my-fancy-project"