Use IMixinConfigPlugin#postApply to substitute JEID config for mine

* As there is no way within the mixin framework to alter the target method at runtime, this is the best way I have found to apply this.

build.gradle

@@ -14,7 +14,7 @@ apply plugin: 'org.spongepowered.mixin'
 
 def buildnumber = System.getenv('TRAVIS_BUILD_NUMBER')
 def suffix = buildnumber != null ? ".$buildnumber" : "-SNAPSHOT"
-version = "1.3.0$suffix"
+version = "1.3.1$suffix"
 group = "uk.bobbytables.jeidsi" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
 archivesBaseName = "jeidsi"
 

src/main/java/uk/bobbytables/jeidsi/core/JEIDsILoadingPlugin.java

@@ -17,7 +17,7 @@ public class JEIDsILoadingPlugin implements IFMLLoadingPlugin {
 
     public JEIDsILoadingPlugin() {
         MixinBootstrap.init();
-        Mixins.addConfiguration("mixins.jeid.server.init.json"); // We NEED JEID's loader plugin on the server too
+        Mixins.addConfiguration("mixins.jeid.server.init.json"); // We NEED JEID's Loader plugin on the server too
         Mixins.addConfiguration("mixins.jeidsi.init.json");
     }
 

src/main/java/uk/bobbytables/jeidsi/core/compat/advancedrocketry/mixins/MixinPacketBiomeIDChange.java

@@ -4,6 +4,8 @@
 import net.minecraft.client.Minecraft;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.world.chunk.Chunk;
+import net.minecraftforge.fml.relauncher.Side;
+import net.minecraftforge.fml.relauncher.SideOnly;
 import org.dimdev.jeid.INewChunk;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Overwrite;
@@ -15,8 +17,6 @@
 import zmaster587.advancedRocketry.network.PacketBiomeIDChange;
 import zmaster587.libVulpes.util.HashedBlockPosition;
 
-import static uk.bobbytables.jeidsi.JEIDsI.LOGGER;
-
 @Mixin(PacketBiomeIDChange.class)
 public class MixinPacketBiomeIDChange {
     @Shadow
@@ -73,6 +73,7 @@ public void readClient(ByteBuf in) {
     /**
      * @author sk2048
      */
+    @SideOnly(Side.CLIENT)
     @Overwrite(remap = false)
     public void executeClient(EntityPlayer thePlayer) {
         if (thePlayer.world.provider.getDimension() == worldId) {

src/main/java/uk/bobbytables/jeidsi/core/init/InitPlugin.java

@@ -0,0 +1,65 @@
+package uk.bobbytables.jeidsi.core.init;
+
+import org.spongepowered.asm.lib.Opcodes;
+import org.spongepowered.asm.lib.tree.AbstractInsnNode;
+import org.spongepowered.asm.lib.tree.ClassNode;
+import org.spongepowered.asm.lib.tree.LdcInsnNode;
+import org.spongepowered.asm.lib.tree.MethodNode;
+import org.spongepowered.asm.mixin.extensibility.IMixinConfigPlugin;
+import org.spongepowered.asm.mixin.extensibility.IMixinInfo;
+
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+
+import static uk.bobbytables.jeidsi.core.JEIDsILoadingPlugin.LOGGER;
+
+public class InitPlugin implements IMixinConfigPlugin {
+    @Override
+    public void onLoad(String mixinPackage) {
+    }
+
+    @Override
+    public String getRefMapperConfig() {
+        return null;
+    }
+
+    @Override
+    public boolean shouldApplyMixin(String targetClassName, String mixinClassName) {
+        return true;
+    }
+
+    @Override
+    public void acceptTargets(Set<String> myTargets, Set<String> otherTargets) {
+    }
+
+    @Override
+    public List<String> getMixins() {
+        return null;
+    }
+
+    @Override
+    public void preApply(String targetClassName, ClassNode targetClass, String mixinClassName, IMixinInfo mixinInfo) {
+    }
+
+    @Override
+    public void postApply(String targetClassName, ClassNode targetClass, String mixinClassName, IMixinInfo mixinInfo) {
+        for (MethodNode methodNode : targetClass.methods) {
+            Iterator<AbstractInsnNode> insnNodeIterator = methodNode.instructions.iterator();
+            while (insnNodeIterator.hasNext()) {
+                AbstractInsnNode abstractInsnNode = insnNodeIterator.next();
+
+                if (abstractInsnNode.getOpcode() != Opcodes.LDC) continue;
+
+                LdcInsnNode ldcInsnNode = (LdcInsnNode) abstractInsnNode;
+                if (ldcInsnNode.cst.equals("mixins.jeid.modsupport.json")) {
+                    LOGGER.info("JEID modsupport init method found: {}", methodNode.name);
+                    LOGGER.info("Substituting our config at instruction {}", methodNode.instructions.indexOf(ldcInsnNode));
+                    ldcInsnNode.cst = "mixins.jeidsi.jeidmodsupport.json";
+                    return;
+                }
+            }
+        }
+        LOGGER.error("JEIDsI has not got a veto over JEID's mod support, report to JEIDsI");
+    }
+}

src/main/java/uk/bobbytables/jeidsi/core/init/mixins/MixinLoaderEarly.java → src/main/java/uk/bobbytables/jeidsi/core/init/mixins/MixinLoader.java

@@ -12,7 +12,7 @@
  * Inject into loadMods BEFORE JEID does, adding our configs to the mixin environment it uses
  */
 @Mixin(value = Loader.class, priority = 500)
-public class MixinLoaderEarly {
+public class MixinLoader {
     @Inject(
             method = "loadMods",
             at = @At(value = "INVOKE", target = "Lnet/minecraftforge/fml/common/LoadController;transition(Lnet/minecraftforge/fml/common/LoaderState;Z)V", ordinal = 1),

src/main/resources/mixins.jeidsi.init.json

@@ -1,13 +1,13 @@
 {
   "package": "uk.bobbytables.jeidsi.core.init",
+  "plugin": "uk.bobbytables.jeidsi.core.init.InitPlugin",
   "required": true,
   "refmap": "mixins.jeidsi.refmap.json",
   "target": "@env(INIT)",
   "minVersion": "0.6",
   "compatibilityLevel": "JAVA_8",
   "mixins": [
-    "mixins.MixinLoaderEarly",
-    "mixins.MixinLoaderLate"
+    "mixins.MixinLoader"
   ],
   "injectors": {
     "maxShiftBy": 10