# HG changeset patch
# User Denis Laxalde <denis.laxalde@logilab.fr>
# Date 1490780251 -7200
# Node ID cd069068a5ef026dbfee9017e4d595af8aaa4430
# Parent  a9266a72f3e0ab75379e24965bc82d86b0fb1815
[server] Warn instead of failing when a looping task is registered and repo has no scheduler

We should provide a way for client code to detect if they should register the
looping task or not. See next patch for that.

diff -r a9266a72f3e0 -r cd069068a5ef cubicweb/server/repository.py
--- a/cubicweb/server/repository.py	Wed Mar 29 11:31:02 2017 +0200
+++ b/cubicweb/server/repository.py	Wed Mar 29 11:37:31 2017 +0200
@@ -407,8 +407,12 @@
         """
         if self.config.repairing:
             return
-        assert self._scheduler is not None, \
-            "This Repository is not intended to be used as a server"
+        if self._scheduler is None:
+            self.warning(
+                'looping task %s will not run in this process where repository '
+                'has no scheduler; use "cubicweb-ctl scheduler <appid>" to '
+                'have it running', func)
+            return
         event = utils.schedule_periodic_task(
             self._scheduler, interval, func, *args)
         self.info('scheduled periodic task %s (interval: %.2fs)',