feat(redis): Patch rediscluster if present

In addition to the redis and rb clients try to patch also the
rediscluster library which does not use the already patched clients.

sentry_sdk/integrations/redis.py

@@ -1,7 +1,7 @@
 from __future__ import absolute_import
 
 from sentry_sdk import Hub
-from sentry_sdk.utils import capture_internal_exceptions
+from sentry_sdk.utils import capture_internal_exceptions, logger
 from sentry_sdk.integrations import Integration
 
 from sentry_sdk._types import MYPY
@@ -15,6 +15,25 @@
 _MULTI_KEY_COMMANDS = frozenset(["del", "touch", "unlink"])
 
 
+def _patch_rediscluster():
+    # type: () -> None
+    try:
+        import rediscluster
+    except ImportError:
+        return
+
+    patch_redis_client(rediscluster.RedisCluster)
+
+    # up to v1.3.6, __version__ attribute is a tuple
+    # from v2.0.0, __version__ is a string and VERSION a tuple
+    version = getattr(rediscluster, "VERSION", rediscluster.__version__)[0]
+
+    # StrictRedisCluster was introduced in v0.2.0 and removed in v2.0.0
+    # https://github.com/Grokzen/redis-py-cluster/blob/master/docs/release-notes.rst
+    if (0, 2, 0) < version < (2, 0, 0):
+        patch_redis_client(rediscluster.StrictRedisCluster)
+
+
 class RedisIntegration(Integration):
     identifier = "redis"
 
@@ -34,6 +53,11 @@ def setup_once():
             patch_redis_client(rb.clients.MappingClient)
             patch_redis_client(rb.clients.RoutingClient)
 
+        try:
+            _patch_rediscluster()
+        except Exception:
+            logger.exception("Error occured while patching `rediscluster` library")
+
 
 def patch_redis_client(cls):
     # type: (Any) -> None