From 2611f4e5fd199d6c3b24d212c862ccf03fea93ff Mon Sep 17 00:00:00 2001 From: Kali Kaneko Date: Tue, 9 Apr 2013 23:52:21 +0900 Subject: add BaseConfig class and its dependencies --- src/leap/common/config/prefixers.py | 132 ++++++++++++++++++++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 src/leap/common/config/prefixers.py (limited to 'src/leap/common/config/prefixers.py') diff --git a/src/leap/common/config/prefixers.py b/src/leap/common/config/prefixers.py new file mode 100644 index 0000000..27274bd --- /dev/null +++ b/src/leap/common/config/prefixers.py @@ -0,0 +1,132 @@ +# -*- coding: utf-8 -*- +# prefixers.py +# Copyright (C) 2013 LEAP +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +""" +Platform dependant configuration path prefixers +""" +import os +import platform + +from abc import ABCMeta, abstractmethod +from xdg import BaseDirectory + +from leap.common.check import leap_assert + + +class Prefixer: + """ + Abstract prefixer class + """ + + __metaclass__ = ABCMeta + + @abstractmethod + def get_path_prefix(self, standalone=False): + """ + Returns the platform dependant path prefixer + + @param standalone: if True it will return the prefix for a + standalone application. Otherwise, it will return the system + default for configuration storage. + @type standalone: bool + """ + return "" + + +def get_platform_prefixer(): + prefixer = globals()[platform.system() + "Prefixer"] + leap_assert(prefixer, "Unimplemented platform prefixer: %s" % + (platform.system(),)) + return prefixer() + + +class LinuxPrefixer(Prefixer): + """ + Config prefixer for the Linux platform + """ + + def get_path_prefix(self, standalone=False): + """ + Returns the platform dependant path prefixer. + This method expects an env variable named LEAP_CLIENT_PATH if + standalone is used. + + @param standalone: if True it will return the prefix for a + standalone application. Otherwise, it will return the system + default for configuration storage. + @type standalone: bool + """ + config_dir = BaseDirectory.xdg_config_home + if not standalone: + return config_dir + return os.path.join(os.getcwd(), "config") + + +class DarwinPrefixer(Prefixer): + """ + Config prefixer for the Darwin platform + """ + + def get_path_prefix(self, standalone=False): + """ + Returns the platform dependant path prefixer. + This method expects an env variable named LEAP_CLIENT_PATH if + standalone is used. + + @param standalone: if True it will return the prefix for a + standalone application. Otherwise, it will return the system + default for configuration storage. + @type standalone: bool + """ + config_dir = BaseDirectory.xdg_config_home + if not standalone: + return config_dir + return os.getenv(os.getcwd(), "config") + + +class WindowsPrefixer(Prefixer): + """ + Config prefixer for the Windows platform + """ + + def get_path_prefix(self, standalone=False): + """ + Returns the platform dependant path prefixer. + This method expects an env variable named LEAP_CLIENT_PATH if + standalone is used. + + @param standalone: if True it will return the prefix for a + standalone application. Otherwise, it will return the system + default for configuration storage. + @type standalone: bool + """ + config_dir = BaseDirectory.xdg_config_home + + if not standalone: + return config_dir + return os.path.join(os.getcwd(), "config") + +if __name__ == "__main__": + try: + abs_prefixer = Prefixer() + except Exception as e: + assert isinstance(e, TypeError), "Something went wrong" + print "Abstract Prefixer class is working as expected" + + linux_prefixer = LinuxPrefixer() + print linux_prefixer.get_path_prefix(standalone=True) + print linux_prefixer.get_path_prefix() -- cgit v1.2.3