Solved Fully delete a world - Doesnt work :s

Howdy!

I'm trying to completely delete a world, while the server is running. But the issue I'm having is that it deletes everything except the /region folder inside the world folder. I have different delete methods, with no luck.
Any help would be appreciated

Relevant code: http://hastebin.com/hayoxubohu.coffee

Thanks -Raino

 

you would need to unload the world completely first before you can delete it

 

RainoBoy97
These files may not be deleted because tge server is using them.

 

Janmm14
Is there any possibility to unload them from that?

 

RainoBoy97
No possibility of unloadjng, but you can do world.regenerateChunk

 

Janmm14
I want to fully delete the world, not regenerate it.

 

RainoBoy97
No possibility with bukkit methods.

 

Using basic java:

Code:

public static boolean deleteDirectory(File path) {
  if( path.exists() ) {
      File files[] = path.listFiles();
      for(int i=0; i<files.length; i++) {
          if(files[i].isDirectory()) {
      deleteDirectory(files[i]);
      }
          else {
              files[i].delete();
          } //end else
      }
      }
  return( path.delete() );
  }

and then use:

Code:java

 
World worldOne = Bukkit.getWorld("the world to delete");
Bukkit.getServer().unloadWorld(worldOne, true);
if(worldOne.equals(null)) { //is unloaded
    File folder = worldOne.getWorldFolder();
    deleteDirectory(folder);
}
 

 

ThunderWaffeMC
didn't knew the method unloadWorld() from Bukkit

But I ask you: Why do you use Bukkit.getServer()????? just use Bukkit

 

Can't fully delete a world. r.0.0.mca and r.0.-1.mca are the spawn chunks and can't be unloaded.

 

ThunderWaffeMC
I got it to delete, the problem is the region files.. Those wont delete...

RealmsofValendor
Is there any way you could force unload them so you can delete them?

 

You can't delete main world files while your server is running.
I have seen some method using NMS, but not sure that it worked.

 

Well it is possible, but only using NMS code and somec hacky code which you should not use when you don't know what it is exactly doing. It also breaks with certain plugins. (e.g.: When LWC is running and protecting a Block in the world, it cann't be deleted.)

But here is the code, you will have to edit it for your own plugin:

Code:java

public static void resetMainWorld(final World w) {
if(w!=null) {
   final String wname = w.getName();
   w.setAutoSave(false);
 
   for ( Player player : w.getPlayers() ) {
      InventoryHandler.clearInv(player, false);
      player.teleport(Bukkit.getServer().getWorlds().get(0).getSpawnLocation());
      player.sendMessage(ConfigManager.getLanguage().getString("string_tp_reset", "World is resetting - You have been teleported to the Lobby"));
   }
 
   //do not register a task/delete the world on serverstop
   if(!Bukkit.getPluginManager().isPluginEnabled(DvZ.instance)) return;
 
   Bukkit.getScheduler().scheduleSyncDelayedTask(DvZ.instance, new Runnable() {
      public void run() {
         if(w!=null) {
            File wf = new  File(Bukkit.getServer().getWorldContainer().getPath()+"/"+ConfigManager.getStaticConfig().getString("world_prefix", "DvZ_")+"Main"+id+"/");
 
            DynamicClassFunctions.bindRegionFiles();
            DynamicClassFunctions.forceUnloadWorld(w);
            DynamicClassFunctions.clearWorldReference(wname);
 
            FileHandler.deleteFolder(wf);
 
         }
      }
   }, 40);
}
}

You also need some methods from this class:
WARNING: This class circumvents Bukkits "Versioning system" and is disacuraged to use.
https://github.com/andre111/Dwarves...1/dvz/volatileCode/DynamicClassFunctions.java
This needs to be called on plugin load:

Code:java

// Dynamic package detection
if (!DynamicClassFunctions.setPackages()) {
logger.log(Level.WARNING, "NMS/OBC package could not be detected, using " + DynamicClassFunctions.nmsPackage + " and " + DynamicClassFunctions.obcPackage);
}
DynamicClassFunctions.setClasses();
DynamicClassFunctions.setMethods();
DynamicClassFunctions.setFields();

So as a conclusing: Yes it is possible to delete a world while the server is running(But I never tried it with one of the main worlds and I guess it would fail). but it is really fragile code that can break very easily and you should only use it when you know how it works.

 

andre111
Thanks!
I'll try it out and see if it works

EDIT: Works!!! Awesome, thanks!

Shevchik
I was not trying to delete the main world But another world I created with another commands ;P

EDIT by Moderator: merged posts, please use the edit button instead of double posting.