Native files are now stored in the OS temp directory.

Temp folder is deleted when minecraft is closed. If the Node.js process ends abruptly, the folder will not delete. As a dirty way to counter this, the directory we extract native files to is cleaned in the preloader. Maybe we'll come up with a more elegant solution in the future.

app/assets/js/preloader.js

@@ -1,6 +1,8 @@
 const {AssetGuard} = require('./assetguard.js')
 const ConfigManager = require('./configmanager.js')
+const os = require('os')
 const path = require('path')
+const rimraf = require('rimraf')
 
 console.log('Preloading')
 
@@ -15,4 +17,13 @@ if(ConfigManager.getSelectedServer() == null){
     console.log('Determining default selected server..')
     ConfigManager.setSelectedServer(AssetGuard.resolveSelectedServer(ConfigManager.getGameDirectory()))
     ConfigManager.save()
-}
+}
+
+// Clean up temp dir.
+rimraf(path.join(os.tmpdir(), ConfigManager.getTempNativeFolder()), (err) => {
+    if(err){
+        console.warn('Error while cleaning temp dir', err)
+    } else {
+        console.log('Cleaned temp dir.')
+    }
+})