chore: Migrate to Kotlin DSL for Gradle

This change migrates the build configuration for Gradle in Groovy to
Kotlin, where possible. The scripts in the `gradle/` directory have not
been migrated to extensive use of dynamicism.

1 files changed, 12 insertions, 7 deletions

diff --git a/odcsim-core/build.gradle b/odcsim-core/build.gradle.kts
index a0cd8450..1596f3c8 100644
--- a/odcsim-core/build.gradle
+++ b/odcsim-core/build.gradle.kts
@@ -23,19 +23,24 @@
  */
 
 /* Build configuration */
-apply from: '../gradle/kotlin.gradle'
-apply plugin: 'java-library'
+apply(from = "../gradle/kotlin.gradle")
+plugins {
+    `java-library`
+}
 
 /* Project configuration */
 repositories {
     jcenter()
 }
 
+val junitJupiterVersion: String by extra
+val junitPlatformVersion: String by extra
+
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib"
+    implementation(kotlin("stdlib"))
 
-    testImplementation "org.junit.jupiter:junit-jupiter-api:$junit_jupiter_version"
-    testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$junit_jupiter_version"
-    testImplementation "org.junit.platform:junit-platform-launcher:$junit_platform_version"
-    testImplementation "com.nhaarman.mockitokotlin2:mockito-kotlin:2.0.0"
+    testImplementation("org.junit.jupiter:junit-jupiter-api:$junitJupiterVersion")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:$junitJupiterVersion")
+    testImplementation("org.junit.platform:junit-platform-launcher:$junitPlatformVersion")
+    testImplementation("com.nhaarman.mockitokotlin2:mockito-kotlin:2.0.0")
 }