create Extensions directory in instance home when it doesnt exist

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@40821 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Utils.py

@@ -734,6 +734,9 @@ def writeLocalExtension(class_id, text, create=1, instance_home=None):
   if instance_home is None:
     instance_home = getConfiguration().instancehome
   path = os.path.join(instance_home, "Extensions")
+  if not os.path.exists(path):
+    os.mkdir(path)
+    LOG('ERP5Type', WARNING, 'Created missing but required directory: %s' %path)
   path = os.path.join(path, "%s.py" % class_id)
   if create:
     if os.path.exists(path):