feat: add ability to build a cross-platform jar

README.md

@@ -28,7 +28,7 @@ Follow [this link](https://gluonhq.com/products/scene-builder/) to download and
 
 #### Build and Run
 
-Run this  command
+Run this command
 
 ```shell script
 ./gradlew run
@@ -36,6 +36,24 @@ Run this  command
 
 Or in Intellij, open the gradle window and click on `clavardator -> Tasks -> application -> run`.
 
+#### Generate cross-platform jar
+
+Run this command
+
+```shell script
+./gradlew build
+```
+
+This will generate a jar file under `build/libs`.
+
+You can then copy this file and place it on any Linux/Windows/Mac environment with at least Java 11 installed.
+
+You can then run this jar file with this command:
+
+```shell script
+java -jar <JAR-NAME>.jar
+```
+
 ## Resources
 
 * [OpenJDK](https://adoptopenjdk.net/releases.html)

build.gradle

@@ -4,25 +4,38 @@ plugins {
 }
 
 group 'fr.insa.clavardator'
-version '1.0-SNAPSHOT'
+version '0.0.1'
 
 repositories {
     mavenCentral()
 }
 
-dependencies {
-    implementation 'org.xerial:sqlite-jdbc:3.32.3'
-    testImplementation("org.junit.jupiter:junit-jupiter-api:5.7.0")
-    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.7.0")
-}
-
 javafx {
     version = "11.0.2"
     modules = [ 'javafx.controls', 'javafx.fxml' ]
 }
 
+dependencies {
+    runtimeOnly "org.openjfx:javafx-graphics:$javafx.version:win"
+    runtimeOnly "org.openjfx:javafx-graphics:$javafx.version:linux"
+    runtimeOnly "org.openjfx:javafx-graphics:$javafx.version:mac"
+    implementation 'org.xerial:sqlite-jdbc:3.32.3'
+    testImplementation("org.junit.jupiter:junit-jupiter-api:5.7.0")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.7.0")
+}
+
+
 test {
     useJUnitPlatform()
 }
 
+jar {
+    manifest {
+        attributes 'Main-Class': 'fr.insa.clavardator.Launcher'
+    }
+    from {
+        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
+    }
+}
+
 mainClassName = 'fr.insa.clavardator.MainApp'

src/main/java/fr/insa/clavardator/Launcher.java

@@ -0,0 +1,7 @@
+package fr.insa.clavardator;
+
+public class Launcher {
+  public static void main(String[] args) {
+    MainApp.main(args);
+  }
+}

src/test/java/fr/insa/clavardator/FirstTest.java

@@ -1,3 +1,5 @@
+package fr.insa.clavardator;
+
 import fr.insa.clavardator.TestClass;
 import org.junit.jupiter.api.Test;
 import static org.junit.jupiter.api.Assertions.assertEquals;