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# -*- coding: utf-8 -*-
# Copyright 2014-2016 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.
import os
from textwrap import indent
import yaml
from ._base import Config
class DatabaseConfig(Config):
section = "database"
def read_config(self, config, **kwargs):
self.event_cache_size = self.parse_size(config.get("event_cache_size", "10K"))
self.database_config = config.get("database")
if self.database_config is None:
self.database_config = {"name": "sqlite3", "args": {}}
name = self.database_config.get("name", None)
if name == "psycopg2":
pass
elif name == "sqlite3":
self.database_config.setdefault("args", {}).update(
{"cp_min": 1, "cp_max": 1, "check_same_thread": False}
)
else:
raise RuntimeError("Unsupported database type '%s'" % (name,))
self.set_databasepath(config.get("database_path"))
def generate_config_section(self, data_dir_path, database_conf, **kwargs):
if not database_conf:
database_path = os.path.join(data_dir_path, "homeserver.db")
database_conf = (
"""# The database engine name
name: "sqlite3"
# Arguments to pass to the engine
args:
# Path to the database
database: "%(database_path)s"
"""
% locals()
)
else:
database_conf = indent(yaml.dump(database_conf), " " * 10).lstrip()
return (
"""\
## Database ##
database:
%(database_conf)s
# Number of events to cache in memory.
#
#event_cache_size: 10K
"""
% locals()
)
def read_arguments(self, args):
self.set_databasepath(args.database_path)
def set_databasepath(self, database_path):
if database_path != ":memory:":
database_path = self.abspath(database_path)
if self.database_config.get("name", None) == "sqlite3":
if database_path is not None:
self.database_config["args"]["database"] = database_path
@staticmethod
def add_arguments(parser):
db_group = parser.add_argument_group("database")
db_group.add_argument(
"-d",
"--database-path",
metavar="SQLITE_DATABASE_PATH",
help="The path to a sqlite database to use.",
)
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