Make fat jar a thing, modularize app.

README.md

@@ -4,8 +4,16 @@ A simple buzzer implementation using web technologies.
 
 ## Usage
 
+### Preconditions
+
+You need a JDK, version 11 upwards.
+
+### Build
+
 Until artifact storage is provided, start the service using `gradlew run` from within the project directory.
 
+Alternatively, you can create the artifact using `gradlew shadowJar`. The output will be written to `<projectDir>/build/libs/`. Then run it using `java -jar <JarFile>`.
+
 After it successfully launched, you have access to two clients.
 
 ### Player-Client
@@ -35,6 +43,7 @@ Your surface consists of three parts. After a game has started, and some player
 
 This project contains a weird mixture of technologies that I wanted to play around with:
 
+* Currently, there is no check for uniqueness of player names, and the name is used as identifier (that's the simplest way to be consistent across reconnects). Make sure each player uses a different name!
 * The server-portion is based on the [ktor][ktor] framework, a rather lightweight, code-configured web servicing library.
 * The clients' HTML files are created on the fly using the domain specific HTML language provided by [kotlinx-html][kotlinxhtml].
 * Javascript and data binding in the clients is achieved by embedding [alpine-js][alpinejs], in conjunction with a few extension functions to integrate it into kotlinx-html. 

build.gradle.kts

@@ -1,3 +1,5 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
 val ktor_version: String by project
 val kotlin_version: String by project
 val logback_version: String by project
@@ -6,12 +8,15 @@ val kotlinx_html_version: String by project
 plugins {
     application
     kotlin("jvm") version "1.5.31"
+    id("com.github.johnrengelman.shadow") version "7.1.0"
 }
 
 group = "de.pheerai.buzzer"
 version = "0.0.1"
+
 application {
     mainClass.set("de.pheerai.buzzer.ApplicationKt")
+    applicationDefaultJvmArgs = listOf("--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED", "-Dio.netty.tryReflectionSetAccessible=true")
 }
 
 repositories {
@@ -28,3 +33,16 @@ dependencies {
     testImplementation("io.ktor:ktor-server-tests:$ktor_version")
     testImplementation("org.jetbrains.kotlin:kotlin-test:$kotlin_version")
 }
+
+tasks {
+    withType<JavaCompile>().configureEach {
+        sourceCompatibility = JavaVersion.VERSION_11.toString()
+        targetCompatibility = JavaVersion.VERSION_11.toString()
+    }
+
+    withType<KotlinCompile>().configureEach {
+        kotlinOptions {
+            jvmTarget = JavaVersion.VERSION_11.toString()
+        }
+    }
+}

src/main/kotlin/de/pheerai/buzzer/data/InlineClasses.kt

@@ -2,7 +2,6 @@ package de.pheerai.buzzer.data
 
 import io.ktor.http.cio.websocket.*
 
-
 @JvmInline
 value class PlayerSocket(val session: WebSocketSession)
 @JvmInline

src/main/kotlin/module-info.java

@@ -0,0 +1,12 @@
+module buzzer {
+    requires ktor.server.host.common.jvm;
+    requires ktor.server.netty.jvm;
+    requires ktor.server.core.jvm;
+    requires ktor.websockets.jvm;
+    requires ktor.html.builder.jvm;
+    requires org.slf4j;
+    requires ktor.http.cio.jvm;
+    requires kotlinx.coroutines.core.jvm;
+    requires kotlin.stdlib;
+    requires kotlinx.html.jvm;
+}