From d328a93b51d22039e361178a5fcf952d9735cd3f Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Mon, 18 Feb 2019 16:53:56 +0000
Subject: [PATCH] Fixup error handling and message

---
 synapse/config/metrics.py | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/synapse/config/metrics.py b/synapse/config/metrics.py
index fc72e32d20..35f1074765 100644
--- a/synapse/config/metrics.py
+++ b/synapse/config/metrics.py
@@ -16,11 +16,8 @@
 from ._base import Config, ConfigError
 
 MISSING_SENTRY = (
-    """Missing sentry_sdk library. This is required to enable sentry
+    """Missing sentry-sdk library. This is required to enable sentry
     integration.
-
-    Install by running:
-        pip install sentry_sdk
     """
 )
 
@@ -39,7 +36,11 @@ class MetricsConfig(Config):
             except ImportError:
                 raise ConfigError(MISSING_SENTRY)
 
-            self.sentry_dsn = config["sentry"]["dsn"]
+            self.sentry_dsn = config["sentry"].get("dsn")
+            if not self.sentry_dsn:
+                raise ConfigError(
+                    "sentry.dsn field is required when sentry integration is enabled",
+                )
 
     def default_config(self, report_stats=None, **kwargs):
         res = """\
-- 
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