Copy php application even if directory exists but is empty

slapos/recipe/apachephp/__init__.py

@@ -40,10 +40,14 @@ class Recipe(GenericBaseRecipe):
   def install(self):
     path_list = []
 
-    # Copy application
-    if not os.path.exists(self.options['htdocs']):
-      shutil.copytree(self.options['source'],
-                      self.options['htdocs'])
+    # Copy application if not already existing
+    htdocs_location = self.options['htdocs']
+    if not (os.path.exists(htdocs_location) and os.listdir(htdocs_location)):
+      try:
+        os.rmdir(htdocs_location)
+      except:
+        pass
+      shutil.copytree(self.options['source'], htdocs_location)
 
     # Install php.ini
     php_ini = self.createFile(os.path.join(self.options['php-ini-dir'],