packages/searxng: revert flask-babel 2.0.0 -> 3.0.0 bump

packages/web-apps/searxng/default.nix

@@ -11,6 +11,11 @@ toPythonModule (buildPythonApplication rec {
 
   src = npins.mkSource pins.searxng;
 
+  patches = [
+    # wait for https://github.com/NixOS/nixpkgs/pull/211654
+    ./revert-flask-babel-3.0.0.patch
+  ];
+
   postPatch = ''
     sed -i \
       -e 's/==.*$//' \

packages/web-apps/searxng/fp

@@ -0,0 +1,55 @@
+diff --git a/requirements.txt b/requirements.txt
+index 2de33f4baa..947a88433f 100644
+--- a/requirements.txt
++++ b/requirements.txt
+@@ -1,6 +1,6 @@
+ certifi==2022.12.7
+ babel==2.11.0
+-flask-babel==2.0.0
++flask-babel==3.0.0
+ flask==2.2.2
+ jinja2==3.1.2
+ lxml==4.9.2
+diff --git a/searx/locales.py b/searx/locales.py
+index 8547e7fa7b..9e06bf39d4 100644
+--- a/searx/locales.py
++++ b/searx/locales.py
+@@ -86,7 +86,7 @@ def get_translations():
+         use_translation = flask.request.form.get('use-translation')
+         if use_translation in ADDITIONAL_TRANSLATIONS:
+             babel_ext = flask_babel.current_app.extensions['babel']
+-            return Translations.load(next(babel_ext.translation_directories), use_translation)
++            return Translations.load(babel_ext.translation_directories[0], use_translation)
+     return _flask_babel_get_translations()
+ 
+ 
+diff --git a/searx/webapp.py b/searx/webapp.py
+index d4206ca16b..d9ca3941cd 100755
+--- a/searx/webapp.py
++++ b/searx/webapp.py
+@@ -160,8 +160,6 @@
+ app.jinja_env.filters['group_engines_in_tab'] = group_engines_in_tab  # pylint: disable=no-member
+ app.secret_key = settings['server']['secret_key']
+ 
+-babel = Babel(app)
+-
+ timeout_text = gettext('timeout')
+ parsing_error_text = gettext('parsing error')
+ http_protocol_error_text = gettext('HTTP protocol error')
+@@ -211,13 +209,15 @@ class ExtendedRequest(flask.Request):
+ request = typing.cast(ExtendedRequest, flask.request)
+ 
+ 
+-@babel.localeselector
+ def get_locale():
+     locale = localeselector()
+     logger.debug("%s uses locale `%s`", urllib.parse.quote(request.url), locale)
+     return locale
+ 
+ 
++babel = Babel(app, locale_selector=get_locale)
++
++
+ def _get_browser_language(req, lang_list):
+     for lang in req.headers.get("Accept-Language", "en").split(","):
+         if ';' in lang:

packages/web-apps/searxng/revert-flask-babel-3.0.0.patch

@@ -0,0 +1,49 @@
+--- b/requirements.txt
++++ a/requirements.txt
+@@ -1,6 +1,6 @@
+ certifi==2022.12.7
+ babel==2.11.0
++flask-babel==2.0.0
+-flask-babel==3.0.0
+ flask==2.2.2
+ jinja2==3.1.2
+ lxml==4.9.2
+--- b/searx/locales.py
++++ a/searx/locales.py
+@@ -86,7 +86,7 @@
+         use_translation = flask.request.form.get('use-translation')
+         if use_translation in ADDITIONAL_TRANSLATIONS:
+             babel_ext = flask_babel.current_app.extensions['babel']
++            return Translations.load(next(babel_ext.translation_directories), use_translation)
+-            return Translations.load(babel_ext.translation_directories[0], use_translation)
+     return _flask_babel_get_translations()
+ 
+ 
+--- b/searx/webapp.py
++++ a/searx/webapp.py
+@@ -160,6 +160,8 @@
+ app.jinja_env.filters['group_engines_in_tab'] = group_engines_in_tab  # pylint: disable=no-member
+ app.secret_key = settings['server']['secret_key']
+ 
++babel = Babel(app)
++
+ timeout_text = gettext('timeout')
+ parsing_error_text = gettext('parsing error')
+ http_protocol_error_text = gettext('HTTP protocol error')
+@@ -209,15 +211,13 @@
+ request = typing.cast(ExtendedRequest, flask.request)
+ 
+ 
++@babel.localeselector
+ def get_locale():
+     locale = localeselector()
+     logger.debug("%s uses locale `%s`", urllib.parse.quote(request.url), locale)
+     return locale
+ 
+ 
+-babel = Babel(app, locale_selector=get_locale)
+-
+-
+ def _get_browser_language(req, lang_list):
+     for lang in req.headers.get("Accept-Language", "en").split(","):
+         if ';' in lang: