Only load jinja2 templates once

Instead of every time a new email pusher is created, as loading jinja2
templates is slow.

1 files changed, 4 insertions, 3 deletions

diff --git a/synapse/push/pusherpool.py b/synapse/push/pusherpool.py
index 3837be523d..43cb6e9c01 100644
--- a/synapse/push/pusherpool.py
+++ b/synapse/push/pusherpool.py
@@ -16,7 +16,7 @@
 
 from twisted.internet import defer
 
-import pusher
+from .pusher import PusherFactory
 from synapse.util.logcontext import preserve_fn, preserve_context_over_deferred
 from synapse.util.async import run_on_reactor
 
@@ -28,6 +28,7 @@ logger = logging.getLogger(__name__)
 class PusherPool:
     def __init__(self, _hs):
         self.hs = _hs
+        self.pusher_factory = PusherFactory(_hs)
         self.start_pushers = _hs.config.start_pushers
         self.store = self.hs.get_datastore()
         self.clock = self.hs.get_clock()
@@ -48,7 +49,7 @@ class PusherPool:
         # will then get pulled out of the database,
         # recreated, added and started: this means we have only one
         # code path adding pushers.
-        pusher.create_pusher(self.hs, {
+        self.pusher_factory.create_pusher({
             "id": None,
             "user_name": user_id,
             "kind": kind,
@@ -186,7 +187,7 @@ class PusherPool:
         logger.info("Starting %d pushers", len(pushers))
         for pusherdict in pushers:
             try:
-                p = pusher.create_pusher(self.hs, pusherdict)
+                p = self.pusher_factory.create_pusher(pusherdict)
             except:
                 logger.exception("Couldn't start a pusher: caught Exception")
                 continue