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From 76dd636151735671be74ba9d55f773e190e22827 Mon Sep 17 00:00:00 2001
From: Julien Moutinho <julm+srht@sourcephile.fr>
Date: Fri, 13 May 2022 22:40:46 +0200
Subject: [PATCH core.sr.ht] Fix Unix socket support in RedisQueueCollector

The broker URL is not necessarily in the format expected by Redis.from_url

Especially, Redis.from_url supports this format for Unix sockets:
    unix:///run/redis-sourcehut-metasrht/redis.sock?db=0
See https://redis-py.readthedocs.io/en/stable/#redis.ConnectionPool.from_url

Whereas Celery+Kombu support Redis but also other transports
and thus expect another scheme:
    redis+socket:///run/redis-sourcehut-metasrht/redis.sock?virtual_host=1
See https://docs.celeryproject.org/en/stable/userguide/configuration.html#redis-backend-settings
and https://github.com/celery/celery/blob/e5d99801e4b56a02af4a2e183879c767228d2817/celery/backends/redis.py#L299-L352
and https://github.com/celery/kombu/blob/master/kombu/utils/url.py
---
 srht/metrics.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/srht/metrics.py b/srht/metrics.py
index 68caf8e..2df5777 100644
--- a/srht/metrics.py
+++ b/srht/metrics.py
@@ -1,11 +1,12 @@
 import time
+from celery import Celery
 from prometheus_client.metrics_core import GaugeMetricFamily
 from redis import Redis, ResponseError
 
 
 class RedisQueueCollector:
     def __init__(self, broker, name, documentation, queue_name="celery"):
-        self.redis = Redis.from_url(broker)
+        self.redis = Celery("collector", broker=broker).connection_for_read().channel().client
         self.queue_name = queue_name
         self.name = name
         self.documentation = documentation
-- 
2.35.1