Backend: Fixed SkyHanni not being a mod (#2099)

Co-authored-by: nea <nea@nea.moe>
Co-authored-by: jani270 <69345714+jani270@users.noreply.github.com>
Co-authored-by: hannibal2 <24389977+hannibal00212@users.noreply.github.com>

2 files changed, 52 insertions, 0 deletions

diff --git a/src/main/java/at/hannibal2/skyhanni/tweaker/ModLoadingTweaker.java b/src/main/java/at/hannibal2/skyhanni/tweaker/ModLoadingTweaker.java
new file mode 100644
index 000000000..418fa62ef
--- /dev/null
+++ b/src/main/java/at/hannibal2/skyhanni/tweaker/ModLoadingTweaker.java
@@ -0,0 +1,51 @@
+package at.hannibal2.skyhanni.tweaker;
+
+
+import net.minecraft.launchwrapper.ITweaker;
+import net.minecraft.launchwrapper.LaunchClassLoader;
+import net.minecraftforge.fml.relauncher.CoreModManager;
+import org.spongepowered.asm.launch.MixinBootstrap;
+
+import java.io.File;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.util.List;
+
+/**
+ * The mod loading tweaker makes sure that we are recognized as a Forge Mod, despite having a Tweaker.
+ * We also add ourselves as a mixin container for integration with other mixin loaders.
+ *
+ * Taken from https://github.com/NotEnoughUpdates/NotEnoughUpdates/blob/20821e63057add096e314310ea8fa8e0c411e964/src/main/java/io/github/moulberry/notenoughupdates/loader/ModLoadingTweaker.java
+ */
+public class ModLoadingTweaker implements ITweaker {
+    @Override
+    public void acceptOptions(List<String> args, File gameDir, File assetsDir, String profile) {
+        URL location = ModLoadingTweaker.class.getProtectionDomain().getCodeSource().getLocation();
+        if (location == null) return;
+        if (!"file".equals(location.getProtocol())) return;
+        try {
+            MixinBootstrap.getPlatform().addContainer(location.toURI());
+            String file = new File(location.toURI()).getName();
+            CoreModManager.getIgnoredMods().remove(file);
+            CoreModManager.getReparseableCoremods().add(file);
+        } catch (URISyntaxException e) {
+            System.err.println("SkyHanni could not re-add itself as mod.");
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void injectIntoClassLoader(LaunchClassLoader classLoader) {
+
+    }
+
+    @Override
+    public String getLaunchTarget() {
+        return null;
+    }
+
+    @Override
+    public String[] getLaunchArguments() {
+        return new String[0];
+    }
+}
diff --git a/src/main/java/at/hannibal2/skyhanni/tweaker/SkyHanniTweaker.java b/src/main/java/at/hannibal2/skyhanni/tweaker/SkyHanniTweaker.java
index 6cdb1b204..0cede967d 100644
--- a/src/main/java/at/hannibal2/skyhanni/tweaker/SkyHanniTweaker.java
+++ b/src/main/java/at/hannibal2/skyhanni/tweaker/SkyHanniTweaker.java
@@ -20,6 +20,7 @@ public class SkyHanniTweaker implements ITweaker {
     public void acceptOptions(List<String> args, File gameDir, File assetsDir, String profile) {
         List<String> tweakClasses = (List<String>) Launch.blackboard.get("TweakClasses");
         tweakClasses.add(MixinTweaker.class.getName());
+        tweakClasses.add(ModLoadingTweaker.class.getName());
     }
 
     @Override