forked-synapse/synapse/storage/engines/__init__.py
Vincent Breitmoser 89de934981 Use psycopg2cffi module instead of psycopg2 if running on pypy
The psycopg2 package isn't available for PyPy.  This commit adds a check
if the runtime is PyPy, and if it is uses psycopg2cffi module in favor
of psycopg2. This is almost a drop-in replacement, except for one place
where an additional cast to string is required.
2018-04-10 11:29:52 +02:00

49 lines
1.4 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2015, 2016 OpenMarket Ltd
#
# Licensed 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 "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from ._base import IncorrectDatabaseSetup
from .postgres import PostgresEngine
from .sqlite3 import Sqlite3Engine
import importlib
import platform
SUPPORTED_MODULE = {
"sqlite3": Sqlite3Engine,
"psycopg2": PostgresEngine,
}
def create_engine(database_config):
name = database_config["name"]
engine_class = SUPPORTED_MODULE.get(name, None)
if engine_class:
needs_pypy_hack = (name == "psycopg2" and
platform.python_implementation() == "PyPy")
if needs_pypy_hack:
module = importlib.import_module("psycopg2cffi")
else:
module = importlib.import_module(name)
return engine_class(module, database_config)
raise RuntimeError(
"Unsupported database engine '%s'" % (name,)
)
__all__ = ["create_engine", "IncorrectDatabaseSetup"]