From 48a0cd8ee5581c64f41988798b5aa7c73e25b1aa Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <koszko@koszko.org>
Date: Tue, 22 Feb 2022 13:15:45 +0100
Subject: support Flask 1.0

---
 src/hydrilla/server/serve.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/hydrilla/server/serve.py b/src/hydrilla/server/serve.py
index 2ef30cb..4ec2a17 100644
--- a/src/hydrilla/server/serve.py
+++ b/src/hydrilla/server/serve.py
@@ -459,7 +459,13 @@ class HydrillaApp(flask.Flask):
         if self.debug and os.environ.get('WERKZEUG_RUN_MAIN') != 'true':
             return
 
-        self.jinja_options['extensions'] = ['jinja2.ext.i18n']
+        self.jinja_options = {
+            **self.jinja_options,
+            'extensions': [
+                *self.jinja_options.get('extensions', []),
+                'jinja2.ext.i18n'
+            ]
+        }
 
         self._hydrilla_translation = \
             util.translation(here / 'locales', hydrilla_config['language'])
-- 
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