add schema version to rebaseline_server intermediate JSON

gm/rebaseline_server/results.py

Index: gm/rebaseline_server/results.py
diff --git a/gm/rebaseline_server/results.py b/gm/rebaseline_server/results.py
index 5c33e309d17a3b126a35306e606485c9249040c8..a8ab24305277fc2026676267ec49c8fc99501c63 100755
--- a/gm/rebaseline_server/results.py
+++ b/gm/rebaseline_server/results.py
@@ -52,6 +52,8 @@ KEY__HEADER__IS_EXPORTED = 'isExported'
 KEY__HEADER__IS_STILL_LOADING = 'resultsStillLoading'
 KEY__HEADER__RESULTS_ALL = 'all'
 KEY__HEADER__RESULTS_FAILURES = 'failures'
+KEY__HEADER__SCHEMA_VERSION = 'schemaVersion'
+KEY__HEADER__SCHEMA_VERSION_CURRENT = 1

[rmistry, 2014/03/13 16:13:43]

Can we create a separate constant for the version number? This is to make it
more noticable. If I was looking to update the version number these group of
constants look like only keys to me.

Maybe something like
REBASELINE_SERVER_VERSION_NUMBER = 1.

[epoger, 2014/03/13 16:32:44]

You mean just because they are named KEY__* you think they are all keys ?

Good idea, done.

 KEY__HEADER__TIME_NEXT_UPDATE_AVAILABLE = 'timeNextUpdateAvailable'
 KEY__HEADER__TIME_UPDATED = 'timeUpdated'
 KEY__HEADER__TYPE = 'type'
@@ -193,6 +195,8 @@ class Results(object):
     response_dict = self._results[results_type]
     time_updated = self.get_timestamp()
     response_dict[KEY__HEADER] = {
+        KEY__HEADER__SCHEMA_VERSION: KEY__HEADER__SCHEMA_VERSION_CURRENT,
+
         # Timestamps:
         # 1. when this data was last updated
         # 2. when the caller should check back for new data (if ever)