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fd463b4f5d
Make it so that most options in the config are optional, and commented out in the generated config. The reasons this is a good thing are as follows: * If we decide that we should change the default for an option, we can do so, and only those admins that have deliberately chosen to override that option will be stuck on the old setting. * It moves us towards a point where we can get rid of the super-surprising feature of synapse where the default settings for the config come from the generated yaml. * It makes setting up a test config for unit testing an order of magnitude easier (see forthcoming PR). * It makes the generated config more consistent, and hopefully easier for users to understand.
83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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from ._base import Config
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class DatabaseConfig(Config):
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def read_config(self, config):
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self.event_cache_size = self.parse_size(
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config.get("event_cache_size", "10K")
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)
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self.database_config = config.get("database")
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if self.database_config is None:
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self.database_config = {
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"name": "sqlite3",
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"args": {},
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}
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name = self.database_config.get("name", None)
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if name == "psycopg2":
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pass
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elif name == "sqlite3":
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self.database_config.setdefault("args", {}).update({
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"cp_min": 1,
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"cp_max": 1,
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"check_same_thread": False,
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})
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else:
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raise RuntimeError("Unsupported database type '%s'" % (name,))
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self.set_databasepath(config.get("database_path"))
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def default_config(self, data_dir_path, **kwargs):
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database_path = os.path.join(data_dir_path, "homeserver.db")
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return """\
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## Database ##
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database:
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# The database engine name
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name: "sqlite3"
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# Arguments to pass to the engine
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args:
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# Path to the database
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database: "%(database_path)s"
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# Number of events to cache in memory.
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#
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#event_cache_size: 10K
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""" % locals()
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def read_arguments(self, args):
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self.set_databasepath(args.database_path)
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def set_databasepath(self, database_path):
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if database_path != ":memory:":
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database_path = self.abspath(database_path)
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if self.database_config.get("name", None) == "sqlite3":
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if database_path is not None:
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self.database_config["args"]["database"] = database_path
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def add_arguments(self, parser):
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db_group = parser.add_argument_group("database")
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db_group.add_argument(
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"-d", "--database-path", metavar="SQLITE_DATABASE_PATH",
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help="The path to a sqlite database to use."
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)
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