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path: root/libbe/storage/__init__.py
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# Copyright (C) 2009-2012 Chris Ball <cjb@laptop.org>
#                         W. Trevor King <wking@tremily.us>
#
# This file is part of Bugs Everywhere.
#
# Bugs Everywhere 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 2 of the License, or (at your option) any
# later version.
#
# Bugs Everywhere 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
# Bugs Everywhere.  If not, see <http://www.gnu.org/licenses/>.

"""Define the :py:class:`~libbe.storage.base.Storage` and
:py:class:`~libbe.storage.base.VersionedStorage` classes for storing BE
data.

Also define assorted implementations for the Storage classes:

* :py:mod:`libbe.storage.vcs`
* :py:mod:`libbe.storage.http`

Also define an assortment of storage-related tools and utilities:

* :py:mod:`libbe.storage.util`
"""

from . import base as _base

ConnectionError = _base.ConnectionError
InvalidStorageVersion = _base.InvalidStorageVersion
InvalidID = _base.InvalidID
InvalidRevision = _base.InvalidRevision
InvalidDirectory = _base.InvalidDirectory
NotWriteable = _base.NotWriteable
NotReadable = _base.NotReadable
EmptyCommit = _base.EmptyCommit

# a list of all past versions
STORAGE_VERSIONS = ['Bugs Everywhere Tree 1 0',
                    'Bugs Everywhere Directory v1.1',
                    'Bugs Everywhere Directory v1.2',
                    'Bugs Everywhere Directory v1.3',
                    'Bugs Everywhere Directory v1.4',
                    'Bugs Everywhere Directory v1.5',
                    ]

# the current version
STORAGE_VERSION = STORAGE_VERSIONS[-1]

def get_http_storage(location):
    import http
    return http.HTTP(location)

def get_vcs_storage(location):
    import vcs
    s = vcs.detect_vcs(location)
    s.repo = location
    return s

def get_storage(location):
    """
    Return a Storage instance from a repo location string.
    """
    if location.startswith('http://') or location.startswith('https://'):
        return get_http_storage(location)
    return get_vcs_storage(location)

__all__ = [ConnectionError, InvalidStorageVersion, InvalidID,
           InvalidRevision, InvalidDirectory, NotWriteable, NotReadable,
           EmptyCommit, STORAGE_VERSIONS, STORAGE_VERSION,
           get_storage]