Migrate Carpet Mixin names to mojang mappings

src/main/java/carpet/mixins/Commands_customCommandsMixin.java

@@ -0,0 +1,59 @@
+package carpet.mixins;
+
+import carpet.CarpetServer;
+import carpet.CarpetSettings;
+import com.mojang.brigadier.CommandDispatcher;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.commands.Commands;
+import org.slf4j.Logger;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+
+@Mixin(Commands.class)
+public abstract class Commands_customCommandsMixin
+{
+
+    @Shadow
+    @Final
+    private CommandDispatcher<CommandSourceStack> dispatcher;
+
+    @Inject(method = "<init>", at = @At("RETURN"))
+    private void onRegister(Commands.CommandSelection arg, CallbackInfo ci) {
+        CarpetServer.registerCarpetCommands(this.dispatcher);
+        CarpetServer.registerCarpetCommands(this.dispatcher, arg);
+    }
+
+    @Inject(method = "performCommand", at = @At("HEAD"))
+    private void onExecuteBegin(CommandSourceStack serverCommandSource_1, String string_1, CallbackInfoReturnable<Integer> cir)
+    {
+        if (!CarpetSettings.fillUpdates)
+            CarpetSettings.impendingFillSkipUpdates.set(true);
+    }
+
+    @Inject(method = "performCommand", at = @At("RETURN"))
+    private void onExecuteEnd(CommandSourceStack serverCommandSource_1, String string_1, CallbackInfoReturnable<Integer> cir)
+    {
+        CarpetSettings.impendingFillSkipUpdates.set(false);
+    }
+
+    @SuppressWarnings("UnresolvedMixinReference")
+    @Redirect(method = "performCommand", at = @At(
+                value = "INVOKE",
+                target = "Lorg/slf4j/Logger;isDebugEnabled()Z"
+            ),
+        require = 0
+    )
+    private boolean doesOutputCommandStackTrace(Logger logger)
+    {
+        if (CarpetSettings.superSecretSetting)
+            return true;
+        return logger.isDebugEnabled();
+    }
+}