erp5_forge: avoid zodb bloating when generating git xml tree or diff with zodb

bt5/erp5_forge/SkinTemplateItem/portal_skins/erp5_toolbox/BusinessTemplate_getPrintableDiffWithZODB.xml

@@ -58,6 +58,12 @@
 from Products.ERP5Type.Document import newTempBase\n
 from ZODB.POSException import ConflictError\n
 \n
+def respond(v):\n
+  if REQUEST is None:\n
+    return v\n
+  REQUEST.RESPONSE.write(v)\n
+  raise ValueError("Abort Transaction")\n
+\n
 template_tool = context.getPortalObject().portal_templates\n
 \n
 if context.getBuildingState() != "built":\n
@@ -96,7 +102,7 @@ except ConflictError:\n
   raise\n
 except Exception as e:\n
   print(repr(e))\n
-  return printed\n
+  return respond(printed)\n
 \n
 try:\n
   installed_bt_for_diff.setId("installed_bt_for_diff")\n
@@ -113,14 +119,14 @@ except Exception as e:\n
   print(repr(e))\n
 template_tool.manage_delObjects(ids=[installed_bt_for_diff.getId()])\n
 \n
-return printed\n
+return respond(printed)\n
 
 
 ]]></string> </value>
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string></string> </value>
+            <value> <string>REQUEST=None</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>

bt5/erp5_forge/SkinTemplateItem/portal_skins/erp5_toolbox/BusinessTemplate_getPrintableModificationListFromZODB.xml

@@ -58,6 +58,12 @@
 from Products.ERP5Type.Document import newTempBase\n
 from ZODB.POSException import ConflictError\n
 \n
+def respond(v):\n
+  if REQUEST is None:\n
+    return v\n
+  REQUEST.RESPONSE.write(v)\n
+  raise ValueError("Abort Transaction")\n
+\n
 template_tool = context.getPortalObject().portal_templates\n
 \n
 if context.getBuildingState() != "built":\n
@@ -95,7 +101,7 @@ except ConflictError:\n
   raise\n
 except Exception as e:\n
   print(repr(e))\n
-  return printed\n
+  return respond(printed)\n
 \n
 try:\n
   installed_bt_for_diff.setId("installed_bt_for_diff")\n
@@ -108,14 +114,14 @@ except Exception as e:\n
   print(repr(e))\n
 template_tool.manage_delObjects(ids=[installed_bt_for_diff.getId()])\n
 \n
-return printed\n
+return respond(printed)\n
 
 
 ]]></string> </value>
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string></string> </value>
+            <value> <string>REQUEST=None</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>

bt5/erp5_forge/SkinTemplateItem/portal_skins/erp5_vcs/tree.xml.xml

@@ -63,6 +63,10 @@ if not root:\n
   return \'\'\'<?xml version=\'1.0\' encoding=\'UTF-8\'?>\n
 <tree id=\'0\'></tree>\'\'\'\n
 \n
+if REQUEST is not None: # XXX workaround to prevent zodb bloat (bt build)\n
+  # This script is mostly used by javascript, we can abort the transaction\n
+  REQUEST.RESPONSE.write(vcs_tool.treeToXML(root))\n
+  raise ValueError("Abort transaction")\n
 return vcs_tool.treeToXML(root)\n
 
 
@@ -70,7 +74,7 @@ return vcs_tool.treeToXML(root)\n
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>show_unmodified=False, do_extract=True</string> </value>
+            <value> <string>show_unmodified=False, do_extract=True, REQUEST=None</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>