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# -*- coding: utf-8 -*-
# Copyright 2014 matrix.org
#
# 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 ConfigParser as configparser
import argparse
import sys
import os
class Config(object):
def __init__(self, args):
pass
@staticmethod
def read_file(file_path):
with open(file_path) as file_stream:
return file_stream.read()
@staticmethod
def read_config_file(file_path):
config = configparser.SafeConfigParser()
config.read([file_path])
config_dict = {}
for section in config.sections():
config_dict.update(config.items(section))
return config_dict
@classmethod
def add_arguments(cls, parser):
pass
@classmethod
def generate_config(cls, args, config_dir_path):
pass
@classmethod
def load_config(cls, description, argv, generate_section=None):
config_parser = argparse.ArgumentParser(add_help=False)
config_parser.add_argument(
"-c", "--config-path",
metavar="CONFIG_FILE",
help="Specify config file"
)
config_args, remaining_args = config_parser.parse_known_args(argv)
if generate_section:
if not config_args.config_path:
config_parser.error(
"Must specify where to generate the config file"
)
config_dir_path = os.path.dirname(config_args.config_path)
if os.path.exists(config_args.config_path):
defaults = cls.read_config_file(config_args.config_path)
else:
if config_args.config_path:
defaults = cls.read_config_file(config_args.config_path)
else:
defaults = {}
parser = argparse.ArgumentParser(
parents=[config_parser],
description=description,
formatter_class=argparse.RawDescriptionHelpFormatter,
)
parser.set_defaults(**defaults)
cls.add_arguments(parser)
args = parser.parse_args(remaining_args)
if generate_section:
config_dir_path = os.path.dirname(config_args.config_path)
config_dir_path = os.path.abspath(config_dir_path)
cls.generate_config(args, config_dir_path)
config = configparser.SafeConfigParser()
config.add_section(generate_section)
for key, value in vars(args).items():
if key != "config_path" and value is not None:
config.set(generate_section, key, str(value))
with open(config_args.config_path, "w") as config_file:
config.write(config_file)
return cls(args)
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