149 lines
4.7 KiB
Python
149 lines
4.7 KiB
Python
# Copyright 2009 chickenzilla
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# Copyright 2010 Le Coz Florent <louiz@louiz.org>
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#
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# This file is part of Poezio.
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#
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# Poezio is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# Poezio is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Poezio. If not, see <http://www.gnu.org/licenses/>.
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"""
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Defines the global config instance, used to get or set (and save) values
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from/to the config file
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"""
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from configparser import RawConfigParser, NoOptionError
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from os import environ, makedirs, path
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from shutil import copy2
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from optparse import OptionParser
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class Config(RawConfigParser):
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"""
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load/save the config to a file
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"""
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def __init__(self, file_name):
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self.defsection = "Poezio"
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self.file_name = file_name
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RawConfigParser.__init__(self, None)
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RawConfigParser.read(self, file_name)
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def get(self, option, default):
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"""
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get a value from the config but return
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a default value if it is not found
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The type of default defines the type
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returned
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"""
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try:
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if type(default) == int:
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res = self.getint(option)
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elif type(default) == float:
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res = self.getfloat(option)
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elif type(default) == bool:
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res = self.getboolean(option)
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else:
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res = self.getstr(option)
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except NoOptionError:
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return default
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return res
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def __get(self, option):
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"""
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facility for RawConfigParser.get
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"""
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return RawConfigParser.get(self, self.defsection, option)
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def getstr(self, option):
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"""
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get a value and returns it as a string
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"""
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return self.__get(option)
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def getint(self, option):
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"""
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get a value and returns it as an int
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"""
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try:
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return int(self.__get(option))
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except ValueError:
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return -1
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def getfloat(self, option):
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"""
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get a value and returns it as a float
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"""
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return float(self.__get(option))
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def getboolean(self, option):
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"""
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get a value and returns it as a boolean
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"""
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return RawConfigParser.getboolean(self, self.defsection, option)
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def write_in_file(self, section, option, value):
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"""
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Our own way to save write the value in the file
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Just find the right section, and then find the
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right option, and edit it.
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"""
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df = open(self.file_name, 'r')
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lines_before = [line.strip() for line in df.readlines()]
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df.close()
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result_lines = []
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we_are_in_the_right_section = False
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for line in lines_before:
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if line.startswith('['): # check the section
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if line == '[%s]' % section:
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we_are_in_the_right_section = True
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else:
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we_are_in_the_right_section = False
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if line.startswith(option) and we_are_in_the_right_section:
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line = '%s = %s' % (option, value)
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result_lines.append(line)
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df = open(self.file_name, 'w')
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for line in result_lines:
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df.write('%s\n' % line)
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df.close()
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def set_and_save(self, option, value):
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"""
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set the value in the configuration then save it
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to the file
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"""
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RawConfigParser.set(self, self.defsection, option, value)
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self.write_in_file(self.defsection, option, value)
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# creates the configuration directory if it doesn't exist
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# and copy the default config in it
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CONFIG_HOME = environ.get("XDG_CONFIG_HOME")
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if not CONFIG_HOME:
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CONFIG_HOME = environ.get('HOME')+'/.config'
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CONFIG_PATH = CONFIG_HOME + '/poezio/'
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try:
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makedirs(CONFIG_PATH)
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except OSError:
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pass
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if not path.isfile(CONFIG_PATH+'poezio.cfg'):
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copy2('../data/default_config.cfg', CONFIG_PATH+'poezio.cfg')
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parser = OptionParser()
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parser.add_option("-f", "--file", dest="filename", default=CONFIG_PATH+'poezio.cfg',
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help="the config file you want to use", metavar="CONFIG_FILE")
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(options, args) = parser.parse_args()
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config = Config(options.filename)
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if __name__ == '__main__':
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# tests
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import sys
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(dummy, filename, section, option, value) = sys.argv
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conf = Config(sys.argv[1])
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conf.write_in_file(section, option, value)
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