Add a server build task

build.gradle

@@ -127,4 +127,27 @@ task jarjar(type: Jar) {
 
 jar.finalizedBy(jarjar)
 jar.finalizedBy(copyToLib)
-jar.finalizedBy(copyNatives)
+jar.finalizedBy(copyNatives)
+
+
+
+task buildServer(type: Jar){
+    manifest {
+        attributes(
+                'Main-Class': "com.mojang.minecraft.server.MinecraftServer",
+                "Multi-Release": 'true'
+        )
+    } from {
+        configurations.provided.collect { it.isDirectory() ? it : zipTree(it)}
+    }
+    archiveClassifier = "server"
+    duplicatesStrategy = "exclude"
+    from {configurations.provided.collect {it.isDirectory()?it:zipTree(it)}}
+
+    exclude 'META-INF/*'
+
+    with jarjar
+}
+
+
+jar.finalizedBy(buildServer)