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# Fedora Developer Shell
#
# 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; version 2 of the License.
#
# 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 Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# Authors: Luke Macken <lmacken@redhat.com>
#          Yaakov M. Nemoy <ynemoy@redhat.com>
#

from __future__ import with_statement

from configobj import ConfigObj
from os import makedirs, getcwd, listdir
from os.path import abspath, join, split, splitext, basename, exists, dirname

from base.base import log
from base.module import Module
from base.util import pwd, copytree

from modules.dirfactory import DirFactory
class Directory(Module):
    _type = 'directory'
    def __init__(self, name=None):
        if not name:
            log.debug('no name with directory')
            cwd = getcwd()
            log.debug(split(cwd))
            if self.is_sysdir_dir(cwd):
                self.load_dir(cwd)
            else:
                self.make_dir(cwd)
        else:
            log.debug('directory.init with name ' + name)
            dir = abspath(name)
            if not exists(dir):
                makedirs(dir)
            if self.is_sysdir_dir(dir):
                self.load_dir(dir)
            else:
                self.make_dir(dir)

    def is_sysdir_dir(self, dir):
        with pwd(dir):
            cfg = ConfigObj('.devshell')
            try:
                if self._type  in cfg['type']:
                    log.debug('is type ' + self._type)
                    return True
                else:
                    return False
            except KeyError, e:
                return False

    def load_dir(self, dir):
        log.debug('directory.load_dir')
        with pwd(dir):
            parent, name = split(getcwd())
            self.parent = parent
            self.cfg = ConfigObj('.devshell')
            if not self.name == name:
                # we are saving name in the .devshell file so we can detect
                # if the name has been changed or not. we don't want to have to run
                # rename all the time
                self.rename(name)
                pass

    def make_dir(self, dir):
        log.debug('directory.make_dir')
        with pwd(dir):
            self.cfg = ConfigObj('.devshell')
            parent, name = split(getcwd())
            self.cfg['type'] = self._type
            self.cfg['name'] = name
            self.parent = parent
            self.cfg.write()

    @property
    def name(self):
        return self.cfg['name']

    @property
    def parent(self):
        return self.cfg['parent']

    @property
    def dir(self):
        return join(self.parent, self.name)

    def close(self):
        log.debug('writing self.cfg for directory')
        with pwd(self.dir):
            self.cfg.write()

    def rename(self, new_name):
        self.cfg['name'] = new_name

    def move(self, new_loc):
        new_loc = abspath(new_loc)
        new_parent, new_name = split(new_loc)
        old_dir = self.dir
        copytree(self.dir, new_loc)
        self.parent = new_parent
        self.rename(new_name)
        rm(old_dir)

    def copy(self, new_loc):
        new_loc = abspath(new_loc)
        new_parent, new_name = split(new_loc)
        copytree(self.dir, new_loc)
        new_dir = DirFactory(new_loc)
        return new_dir

__all__ = ['Directory']