The environment variable CURRENT_VERSION_ID is in the format X.Y, where X is the version specified in your app.yaml and Y is a number generated by App Engine for each deployment.
You could store the previous value of Y in the datastore and when currentY != previousY kick off your file processing. The actual triggering could be done from an Ant script that calls "curl http://your-app.appspot.com" after a successful appcfg update. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.