Add support for non-string storage definition.

In preparation for better ERP5 clusterisation.

slapos/recipe/zeo/__init__.py

@@ -56,7 +56,9 @@ class Recipe(GenericBaseRecipe):
                                     'zeo-filestorage-snippet.conf.in')
     # Prepare all filestorages
     filestorage_snippet = ""
-    for storage_definition in self.options['storage'].splitlines():
+    storage = self.options['storage']
+    if isinstance(storage, basestring):
+      for storage_definition in storage.splitlines():
         storage_definition = storage_definition.strip()
         if not storage_definition:
           continue
@@ -67,6 +69,10 @@ class Recipe(GenericBaseRecipe):
             zodb_path = q.split('=')[1].strip()
         filestorage_snippet += self.substituteTemplate(
             snippet_filename, dict(storage_name=storage_name, path=zodb_path))
+    else:
+      for storage_name, path in storage:
+        filestorage_snippet += self.substituteTemplate(snippet_filename,
+          {'storage_name': storage_name, 'path': path})
 
     config = dict(
       zeo_ip=self.options['ip'],