Apply retry policy to maybe_declare(). (#2174)

kombu/common.py

@@ -126,7 +126,7 @@ def _ensure_channel_is_bound(entity, channel):
             raise ChannelError(
                 f"Cannot bind channel {channel} to entity {entity}")
         entity = entity.bind(channel)
-        return entity
+    return entity
 
 
 def _maybe_declare(entity, channel):
@@ -159,7 +159,7 @@ def _maybe_declare(entity, channel):
 
 
 def _imaybe_declare(entity, channel, **retry_policy):
-    _ensure_channel_is_bound(entity, channel)
+    entity = _ensure_channel_is_bound(entity, channel)
 
     if not entity.channel.connection:
         raise RecoverableConnectionError('channel disconnected')

kombu/messaging.py

@@ -187,12 +187,14 @@ class Producer:
         return _publish(
             body, priority, content_type, content_encoding,
             headers, properties, routing_key, mandatory, immediate,
-            exchange_name, declare, timeout
+            exchange_name, declare, timeout, retry, retry_policy
         )
 
     def _publish(self, body, priority, content_type, content_encoding,
                  headers, properties, routing_key, mandatory,
-                 immediate, exchange, declare, timeout=None):
+                 immediate, exchange, declare, timeout=None,
+                 retry=False, retry_policy=None):
+        retry_policy = {} if retry_policy is None else retry_policy
         channel = self.channel
         message = channel.prepare_message(
             body, priority, content_type,
@@ -200,7 +202,8 @@ class Producer:
         )
         if declare:
             maybe_declare = self.maybe_declare
-            [maybe_declare(entity) for entity in declare]
+            for entity in declare:
+                maybe_declare(entity, retry=retry, **retry_policy)
 
         # handle autogenerated queue names for reply_to
         reply_to = properties.get('reply_to')

t/unit/test_messaging.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 import pickle
 import sys
 from collections import defaultdict
-from unittest.mock import Mock, patch
+from unittest.mock import ANY, Mock, patch
 
 import pytest
 
@@ -170,6 +170,34 @@ class test_Producer:
         timeout = p._channel.basic_publish.call_args[1]['timeout']
         assert timeout == 1
 
+    @patch('kombu.messaging.maybe_declare')
+    def test_publish_maybe_declare_with_retry_policy(self, maybe_declare):
+        p = self.connection.Producer(exchange=Exchange('foo'))
+        p.channel = Mock()
+        expected_retry_policy = {
+            "max_retries": 20,
+            "interval_start": 1,
+            "interval_step": 2,
+            "interval_max": 30,
+            "retry_errors": (OperationalError,)
+        }
+        p.publish('test_maybe_declare', exchange=Exchange('foo'), retry=True, retry_policy=expected_retry_policy)
+        maybe_declare.assert_called_once_with(ANY, ANY, True, **expected_retry_policy)
+
+    @patch('kombu.common._imaybe_declare')
+    def test_publish_maybe_declare_with_retry_policy_ensure_connection(self, _imaybe_declare):
+        p = self.connection.Producer(exchange=Exchange('foo'))
+        p.channel = Mock()
+        expected_retry_policy = {
+            "max_retries": 20,
+            "interval_start": 1,
+            "interval_step": 2,
+            "interval_max": 30,
+            "retry_errors": (OperationalError,)
+        }
+        p.publish('test_maybe_declare', exchange=Exchange('foo'), retry=True, retry_policy=expected_retry_policy)
+        _imaybe_declare.assert_called_once_with(ANY, ANY, **expected_retry_policy)
+
     def test_publish_with_reply_to(self):
         p = self.connection.Producer()
         p.channel = Mock()
@@ -200,7 +228,7 @@ class test_Producer:
         p.connection.ensure = Mock()
         ex = Exchange('foo')
         p._publish('hello', 0, '', '', {}, {}, 'rk', 0, 0, ex, declare=[ex])
-        p.maybe_declare.assert_called_with(ex)
+        p.maybe_declare.assert_called_with(ex, retry=False)
 
     def test_revive_when_channel_is_connection(self):
         p = self.connection.Producer()