faster changelog rebuild

oml/changelog.py

@@ -45,7 +45,11 @@ class Changelog(db.Model):
     sig = sa.Column(sa.String(96))
 
     @classmethod
-    def record(cls, user, action, *args):
+    def record(cls, user, action, *args, **kwargs):
+        commit = True
+        if '_commit' in kwargs:
+            commit = kwargs['_commit']
+            del kwargs['_commit']
         c = cls()
         c.created = datetime.utcnow()
         c.timestamp = datetime2ts(c.created)
@@ -55,7 +59,8 @@ class Changelog(db.Model):
         _data = str(c.revision) + str(c.timestamp) + c.data
         _data = _data.encode()
         state.db.session.add(c)
-        state.db.session.commit()
+        if commit:
+            state.db.session.commit()
         logger.debug('record change: %s', c.json())
 
     @classmethod