Make hypercorn log to stdout in Docker

This may help with debugging issues, because we now actually see
incoming requests also on the hypercorn layer.

Fixes #97.

docker/entrypoint.sh

@@ -5,4 +5,4 @@ export SNIKKET_WEB_DOMAIN="$SNIKKET_DOMAIN"
 export SNIKKET_TWEAK_PORTAL_INTERNAL_HTTP_INTERFACE="${SNIKKET_TWEAK_PORTAL_INTERNAL_HTTP_INTERFACE-127.0.0.1}"
 export SNIKKET_TWEAK_PORTAL_INTERNAL_HTTP_PORT="${SNIKKET_TWEAK_PORTAL_INTERNAL_HTTP_PORT-5765}"
 
-exec hypercorn -b "${SNIKKET_TWEAK_PORTAL_INTERNAL_HTTP_INTERFACE}:${SNIKKET_TWEAK_PORTAL_INTERNAL_HTTP_PORT}" 'snikket_web:create_app()'
+exec hypercorn -b "${SNIKKET_TWEAK_PORTAL_INTERNAL_HTTP_INTERFACE}:${SNIKKET_TWEAK_PORTAL_INTERNAL_HTTP_PORT}" --access-logfile=- --log-file=- 'snikket_web:create_app()'

snikket_web/infra.py

@@ -8,7 +8,6 @@ import quart.flask_patch  # noqa:F401
 from quart import (
     current_app,
     request,
-    g,
 )
 
 import flask_babel
@@ -35,9 +34,6 @@ BYTE_UNIT_SCALE_MAP = [
 
 @babel.localeselector  # type:ignore
 def selected_locale() -> str:
-    # Needs mypy ignore because this is a free-for-all object and has no
-    # publicly known attributes.
-    g.language_header_accessed = True  # type: ignore
     selected = request.accept_languages.best_match(
         current_app.config['LANGUAGES']
     ) or current_app.config['LANGUAGES'][0]
@@ -72,12 +68,6 @@ def format_bytes(n: float) -> str:
     return "{} {}".format(n, unit)
 
 
-def add_vary_language_header(resp: quart.Response) -> quart.Response:
-    if getattr(g, "language_header_accessed", False):
-        resp.vary.add("Accept-Language")
-    return resp
-
-
 def init_templating(app: quart.Quart) -> None:
     app.template_filter("repr")(repr)
     app.template_filter("format_datetime")(flask_babel.format_datetime)
@@ -88,7 +78,6 @@ def init_templating(app: quart.Quart) -> None:
     app.template_filter("format_bytes")(format_bytes)
     app.template_filter("flatten")(flatten)
     app.template_filter("circle_name")(circle_name)
-    app.after_request(add_vary_language_header)
 
 
 def generate_error_id() -> str: