Add deobf jar

build.gradle

@@ -45,3 +45,10 @@ processResources
         exclude 'mcmod.info'
     }
 }
+
+task deobfJar(type: Jar) {
+    from sourceSets.main.output
+    classifier = 'deobf'
+}
+
+tasks.build.dependsOn deobfJar