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During the migration the automated script to update the copyright headers accidentally got rid of some of the existing copyright lines. Reinstate them.
71 lines
2.3 KiB
Python
71 lines
2.3 KiB
Python
#
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# This file is licensed under the Affero General Public License (AGPL) version 3.
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#
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# Copyright 2015, 2016 OpenMarket Ltd
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# Copyright (C) 2023 New Vector, Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# See the GNU Affero General Public License for more details:
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# <https://www.gnu.org/licenses/agpl-3.0.html>.
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#
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# Originally licensed under the Apache License, Version 2.0:
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# <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# [This file includes modifications made by New Vector Limited]
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#
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#
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from typing import Any, Mapping, NoReturn
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from ._base import BaseDatabaseEngine, IncorrectDatabaseSetup
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# The classes `PostgresEngine` and `Sqlite3Engine` must always be importable, because
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# we use `isinstance(engine, PostgresEngine)` to write different queries for postgres
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# and sqlite. But the database driver modules are both optional: they may not be
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# installed. To account for this, create dummy classes on import failure so we can
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# still run `isinstance()` checks.
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try:
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from .postgres import PostgresEngine
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except ImportError:
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class PostgresEngine(BaseDatabaseEngine): # type: ignore[no-redef]
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def __new__(cls, *args: object, **kwargs: object) -> NoReturn:
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raise RuntimeError(
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f"Cannot create {cls.__name__} -- psycopg2 module is not installed"
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)
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try:
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from .sqlite import Sqlite3Engine
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except ImportError:
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class Sqlite3Engine(BaseDatabaseEngine): # type: ignore[no-redef]
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def __new__(cls, *args: object, **kwargs: object) -> NoReturn:
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raise RuntimeError(
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f"Cannot create {cls.__name__} -- sqlite3 module is not installed"
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)
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def create_engine(database_config: Mapping[str, Any]) -> BaseDatabaseEngine:
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name = database_config["name"]
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if name == "sqlite3":
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return Sqlite3Engine(database_config)
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if name == "psycopg2":
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return PostgresEngine(database_config)
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raise RuntimeError("Unsupported database engine '%s'" % (name,))
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__all__ = [
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"create_engine",
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"BaseDatabaseEngine",
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"PostgresEngine",
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"Sqlite3Engine",
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"IncorrectDatabaseSetup",
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]
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