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-rw-r--r--synapse/app/homeserver.py62
1 files changed, 25 insertions, 37 deletions
diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py
index 42b5dc53d7..cbecf23be6 100644
--- a/synapse/app/homeserver.py
+++ b/synapse/app/homeserver.py
@@ -20,8 +20,7 @@ import os
 import sys
 from typing import Iterable, Iterator
 
-from twisted.internet import defer, reactor
-from twisted.python.failure import Failure
+from twisted.internet import reactor
 from twisted.web.resource import EncodingResourceWrapper, IResource
 from twisted.web.server import GzipEncoderFactory
 from twisted.web.static import File
@@ -38,7 +37,7 @@ from synapse.api.urls import (
     WEB_CLIENT_PREFIX,
 )
 from synapse.app import _base
-from synapse.app._base import listen_ssl, listen_tcp, quit_with_error
+from synapse.app._base import listen_ssl, listen_tcp, quit_with_error, register_start
 from synapse.config._base import ConfigError
 from synapse.config.emailconfig import ThreepidBehaviour
 from synapse.config.homeserver import HomeServerConfig
@@ -414,40 +413,29 @@ def setup(config_options):
             _base.refresh_certificate(hs)
 
     async def start():
-        try:
-            # Run the ACME provisioning code, if it's enabled.
-            if hs.config.acme_enabled:
-                acme = hs.get_acme_handler()
-                # Start up the webservices which we will respond to ACME
-                # challenges with, and then provision.
-                await acme.start_listening()
-                await do_acme()
-
-                # Check if it needs to be reprovisioned every day.
-                hs.get_clock().looping_call(reprovision_acme, 24 * 60 * 60 * 1000)
-
-            # Load the OIDC provider metadatas, if OIDC is enabled.
-            if hs.config.oidc_enabled:
-                oidc = hs.get_oidc_handler()
-                # Loading the provider metadata also ensures the provider config is valid.
-                await oidc.load_metadata()
-                await oidc.load_jwks()
-
-            _base.start(hs, config.listeners)
-
-            hs.get_datastore().db_pool.updates.start_doing_background_updates()
-        except Exception:
-            # Print the exception and bail out.
-            print("Error during startup:", file=sys.stderr)
-
-            # this gives better tracebacks than traceback.print_exc()
-            Failure().printTraceback(file=sys.stderr)
-
-            if reactor.running:
-                reactor.stop()
-            sys.exit(1)
-
-    reactor.callWhenRunning(lambda: defer.ensureDeferred(start()))
+        # Run the ACME provisioning code, if it's enabled.
+        if hs.config.acme_enabled:
+            acme = hs.get_acme_handler()
+            # Start up the webservices which we will respond to ACME
+            # challenges with, and then provision.
+            await acme.start_listening()
+            await do_acme()
+
+            # Check if it needs to be reprovisioned every day.
+            hs.get_clock().looping_call(reprovision_acme, 24 * 60 * 60 * 1000)
+
+        # Load the OIDC provider metadatas, if OIDC is enabled.
+        if hs.config.oidc_enabled:
+            oidc = hs.get_oidc_handler()
+            # Loading the provider metadata also ensures the provider config is valid.
+            await oidc.load_metadata()
+            await oidc.load_jwks()
+
+        await _base.start(hs, config.listeners)
+
+        hs.get_datastore().db_pool.updates.start_doing_background_updates()
+
+    register_start(start)
 
     return hs