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# Copyright (C) 2010, 2011 Sebastian Thiel (byronimo@gmail.com) and contributors
#
# This module is part of GitDB and is released under
# the New BSD License: http://www.opensource.org/licenses/bsd-license.php
"""Implement a transport compatible database which sends objects using the git protocol"""

from git.db.interface import (TransportDB,
                              PushInfo,
                              FetchInfo,
                              RefSpec)

from git.refs.remote import RemoteReference
from git.remote import Remote


__all__ = ["PureTransportDB"]


class PurePushInfo(PushInfo):

    """TODO: Implementation"""
    __slots__ = tuple()


class PureFetchInfo(FetchInfo):

    """TODO"""
    __slots__ = tuple()


class PureTransportDB(TransportDB):
    # The following variables need to be set by the derived class
    #{Configuration
    protocol = None
    RemoteCls = Remote
    #}end configuraiton

    #{ Interface

    def fetch(self, url, refspecs, progress=None, **kwargs):
        raise NotImplementedError()

    def push(self, url, refspecs, progress=None, **kwargs):
        raise NotImplementedError()

    @property
    def remotes(self):
        return self.RemoteCls.list_items(self)

    def remote(self, name='origin'):
        return self.remotes[name]

    def create_remote(self, name, url, **kwargs):
        return self.RemoteCls.create(self, name, url, **kwargs)

    def delete_remote(self, remote):
        return self.RemoteCls.remove(self, remote)

    #}end interface