From 2ecb78d0b179720a51c0bca704b6722a01d9f664 Mon Sep 17 00:00:00 2001
From: mprahl <mprahl@redhat.com>
Date: Mar 27 2019 13:54:26 +0000
Subject: Make fedora-messaging optional


Since fedora-messaging is not packaged in EPEL7, RHEL 7 deployments
outside of Fedora Infra can't upgrade to v2.2.0. This will allow
for a deployment that uses alternate messaging plugins such as
stomp.

---

diff --git a/resultsdb/messaging.py b/resultsdb/messaging.py
index 4b8d8c2..770e9c5 100644
--- a/resultsdb/messaging.py
+++ b/resultsdb/messaging.py
@@ -22,16 +22,22 @@ import json
 
 import pkg_resources
 
-from fedora_messaging.api import Message, publish
-from fedora_messaging.exceptions import PublishReturned, ConnectionException
-
-from resultsdb import db
+from resultsdb import db, app
 from resultsdb.models.results import Result, ResultData
 from resultsdb.serializers.api_v2 import Serializer
 
 import logging
 log = logging.getLogger(__name__)
 
+try:
+    from fedora_messaging.api import Message, publish
+    from fedora_messaging.exceptions import PublishReturned, ConnectionException
+except ImportError:
+    if app.config.get('MESSAGE_BUS_PUBLISH_TASKOTRON') or app.config.get('MESSAGE_BUS_PLUGIN'):
+        log.error('fedora-messaging must be installed if "MESSAGE_BUS_PUBLISH_TASKOTRON" is '
+                  'enabled or "MESSAGE_BUS_PLUGIN" is set to "fedmsg"')
+        raise
+
 
 SERIALIZE = Serializer().serialize