Add proguard

Author: Kieaer

Essential/build.gradle.kts

@@ -21,6 +21,8 @@ dependencies {
     implementation(libs.kaml)
     implementation(libs.jbcrypt)
 
+    implementation(libs.proguard)
+
     testImplementation(kotlin("test"))
     testImplementation(libs.bundles.game.test)
     testImplementation(libs.bundles.kotlinxEcosystem)
@@ -29,3 +31,52 @@ dependencies {
     testImplementation(libs.bundles.r2dbc.drivers)
     testImplementation(libs.jbcrypt)
 }
+
+tasks.register<JavaExec>("proguardJar") {
+    val shadowJarFile = tasks.shadowJar.get().archiveFile.get().asFile
+    val outputFile = File(buildDir, "libs/${project.name}-proguard.jar")
+
+    // Make sure the output directory exists
+    doFirst {
+        outputFile.parentFile.mkdirs()
+    }
+
+    // Configure the JavaExec task
+    mainClass.set("proguard.ProGuard")
+    classpath = configurations.runtimeClasspath.get()
+
+    // ProGuard arguments
+    val argsList = mutableListOf(
+        "-injars", shadowJarFile.absolutePath,
+        "-outjars", outputFile.absolutePath,
+        "-printmapping", "${buildDir}/proguard/mapping.txt",
+        "-printseeds", "${buildDir}/proguard/seeds.txt",
+        "-printusage", "${buildDir}/proguard/usage.txt",
+        "@${rootProject.projectDir}/proguard-rules.pro"
+    )
+
+    // Provide ALL compile+runtime classpath entries as library jars for analysis only
+    // (exclude the fat shadow jar which is already passed as -injars)
+    val runtimeFiles = configurations.runtimeClasspath.get().files
+    val compileFiles = configurations.compileClasspath.get().files
+    val allLibs = (runtimeFiles + compileFiles)
+        .asSequence()
+        .filter { it.exists() && it != shadowJarFile }
+        .distinctBy { it.absolutePath }
+        .toList()
+    allLibs.forEach { file ->
+        argsList.addAll(listOf("-libraryjars", file.absolutePath))
+    }
+
+    args = argsList
+    doFirst {
+        File("${buildDir}/proguard").mkdirs()
+    }
+}
+
+tasks.test {
+    testLogging {
+        events("failed")
+        exceptionFormat = TestExceptionFormat.SHORT
+    }
+}

gradle/libs.versions.toml

@@ -19,9 +19,8 @@ logback = "1.5.16"
 dataFaker = "2.5.3"
 mockito = "5.20.0"
 jts = "1.20.0"
-h2 = "2.3.232"
-sqlite = "3.50.3.0"
-r2dbcH2 = "1.0.0.RELEASE"
+proguard = "7.8.1"
+
 lingua = "1.2.2"
 discord = "5.6.1"
 ktor = "3.3.1"