Terrible Kotlin! (#435)

* Terrible Kotlin!

You are unloved and everybody dies

* Load Kotlin via a Tweaker

* Fix version comparison

* Allow user to prevent loading of Kotlin libraries using system properties

* Remove testing files

1 files changed, 100 insertions, 0 deletions

diff --git a/src/main/java/io/github/moulberry/notenoughupdates/loader/NEUDelegatingTweaker.java b/src/main/java/io/github/moulberry/notenoughupdates/loader/NEUDelegatingTweaker.java
new file mode 100644
index 00000000..1d91ca76
--- /dev/null
+++ b/src/main/java/io/github/moulberry/notenoughupdates/loader/NEUDelegatingTweaker.java
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2022 Linnea Gräf
+ *
+ * This file is part of NotEnoughUpdates.
+ *
+ * NotEnoughUpdates is free software: you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * NotEnoughUpdates is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with NotEnoughUpdates. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package io.github.moulberry.notenoughupdates.loader;
+
+import io.github.moulberry.notenoughupdates.envcheck.EnvironmentScan;
+import net.minecraft.launchwrapper.ITweaker;
+import net.minecraft.launchwrapper.LaunchClassLoader;
+import org.spongepowered.asm.launch.MixinTweaker;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Tweaker used by NEU to allow delegating to multiple tweakers. The following Tweakers are currently delegated to:
+ *
+ * <ul>
+ * 	<li>{@link KotlinLoadingTweaker} for late loading Kotlin</li>
+ * 	<li>{@link MixinTweaker} for loading Mixins</li>
+ * 	<li>{@link ModLoadingTweaker} to ensure we are recognized as a forge mod</li>
+ * </ul>
+ *
+ * <p>We also run an environment check, to make sure we are running on the correct Forge and Minecraft version.</p>
+ *
+ * @see EnvironmentScan
+ */
+@SuppressWarnings("unused")
+public class NEUDelegatingTweaker implements ITweaker {
+	static {
+		EnvironmentScan.checkEnvironmentOnce();
+	}
+
+	List<ITweaker> delegates = new ArrayList<>();
+
+	public NEUDelegatingTweaker() {
+		discoverTweakers();
+		System.out.println("NEU Delegating Tweaker is loaded with: " + delegates);
+	}
+
+	private void discoverTweakers() {
+		delegates.add(new MixinTweaker());
+		delegates.add(new ModLoadingTweaker());
+		delegates.add(new KotlinLoadingTweaker());
+	}
+
+	@Override
+	public void acceptOptions(List<String> args, File gameDir, File assetsDir, String profile) {
+		for (ITweaker delegate : delegates) {
+			delegate.acceptOptions(args, gameDir, assetsDir, profile);
+		}
+	}
+
+	@Override
+	public void injectIntoClassLoader(LaunchClassLoader classLoader) {
+		for (ITweaker delegate : delegates) {
+			delegate.injectIntoClassLoader(classLoader);
+		}
+	}
+
+	@Override
+	public String getLaunchTarget() {
+		String target = null;
+		for (ITweaker delegate : delegates) {
+			String launchTarget = delegate.getLaunchTarget();
+			if (launchTarget != null)
+				target = launchTarget;
+		}
+		return target;
+	}
+
+	@Override
+	public String[] getLaunchArguments() {
+		List<String> launchArguments = new ArrayList<>();
+		for (ITweaker delegate : delegates) {
+			String[] delegateLaunchArguments = delegate.getLaunchArguments();
+			if (delegateLaunchArguments != null)
+				launchArguments.addAll(Arrays.asList(delegateLaunchArguments));
+		}
+		return launchArguments.toArray(new String[0]);
+	}
+
+}