superset/__init__.py

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
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# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
from flask import current_app, Flask
from werkzeug.local import LocalProxy

from superset.app import create_app  # noqa: F401
from superset.extensions import (
    appbuilder,  # noqa: F401
    cache_manager,
    db,  # noqa: F401
    event_logger,  # noqa: F401
    feature_flag_manager,
    manifest_processor,
    results_backend_manager,
    security_manager,  # noqa: F401
    talisman,  # noqa: F401
)
from superset.security import SupersetSecurityManager  # noqa: F401

# All of the fields located here should be considered legacy. The correct way
# to declare "global" dependencies is to define it in extensions.py,
# then initialize it in app.create_app(). These fields will be removed
# in subsequent PRs as things are migrated towards the factory pattern
app: Flask = current_app
cache = cache_manager.cache
conf = LocalProxy(lambda: current_app.config)
get_feature_flags = feature_flag_manager.get_feature_flags
get_manifest_files = manifest_processor.get_manifest_files
is_feature_enabled = feature_flag_manager.is_feature_enabled
results_backend = LocalProxy(lambda: results_backend_manager.results_backend)
results_backend_use_msgpack = LocalProxy(
    lambda: results_backend_manager.should_use_msgpack
)
data_cache = LocalProxy(lambda: cache_manager.data_cache)
thumbnail_cache = LocalProxy(lambda: cache_manager.thumbnail_cache)