4grab/config.py

######################################################################
# Copyright 2009, 2010 ryuslash
#
# This file is part of 4grab.
#
# 4grab 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.
#
# 4grab 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 4grab.  If not, see <http://www.gnu.org/licenses/>.
######################################################################

import os
import ConfigParser
import sys

homedir = os.getenv("HOME")
if homedir is None:
    homedir = os.path.dirname(sys.argv[0])

class _Configuration(object):
    def __init__(self):
        self.filename = os.path.join(os.path.join(homedir, ".4grab"), "config.cfg")
        self.configparser = ConfigParser.RawConfigParser()
        if not os.path.exists(self.filename):
            self.create_new()
        else:
            self.configparser.read(self.filename)

    def create_new(self):
        self.configparser.add_section("settings")
        self.set_category(self.raw_input_with_default("w", "Please enter which category you would like to download from: "))
        
        self.configparser.add_section("locations")
        self.configparser.set("locations", "download", self.raw_input_with_default(os.path.join(homedir, "Pictures"), "Please enter where you would like the downloads to go: "))

        self.save()

    def raw_input_with_default(self, default, prompt):
        inp = raw_input("%s (default=%s): " % (prompt, default))
        if inp == "":
            return default
        return inp

    def get_download_location(self):
        return self.configparser.get("locations", "download")

    def get_category(self):
        return self.configparser.get("settings", "category")

    def set_category(self, value):
        self.configparser.set("settings", "category", value)

    def option_exists(self, option):
        sections = self.configparser.sections()
        for section in sections:
            if self.configparser.has_option(section, option):
                return True
        return False

    def set_option(self, option, value):
        sec = None
        sections = self.configparser.sections()
        for section in sections:
            if self.configparser.has_option(section, option):
                sec = section
        
        if not sec is None:
            self.configparser.set(sec, option, value)
            return True
        else:
            return False

    def save(self):
        dirname = os.path.dirname(self.filename)
        if not os.path.exists(dirname):
            os.mkdir(dirname)
        configfile = open(self.filename, "w")
        self.configparser.write(configfile)

_configuration = _Configuration()
def Configuration(): return _configuration