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# -*- coding: utf-8 -*-
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# Copyright (C) 2014-2017 RhodeCode GmbH
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License, version 3
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# (only), as published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# This program is dual-licensed. If you wish to learn more about the
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# RhodeCode Enterprise Edition, including its added features, Support services,
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# and proprietary license terms, please see https://rhodecode.com/licenses/
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"""
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VCS Backends module
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"""
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import os
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import logging
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from pprint import pformat
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from rhodecode.lib.vcs.conf import settings
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from rhodecode.lib.vcs.exceptions import VCSError
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from rhodecode.lib.vcs.utils.helpers import get_scm
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from rhodecode.lib.vcs.utils.imports import import_class
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log = logging.getLogger(__name__)
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def get_vcs_instance(repo_path, *args, **kwargs):
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"""
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Given a path to a repository an instance of the corresponding vcs backend
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repository class is created and returned. If no repository can be found
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for the path it returns None. Arguments and keyword arguments are passed
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to the vcs backend repository class.
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"""
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from rhodecode.lib.utils2 import safe_str
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explicit_vcs_alias = kwargs.pop('_vcs_alias', None)
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try:
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vcs_alias = safe_str(explicit_vcs_alias or get_scm(repo_path)[0])
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log.debug(
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'Creating instance of %s repository from %s', vcs_alias,
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safe_str(repo_path))
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backend = get_backend(vcs_alias)
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if explicit_vcs_alias:
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# do final verification of existance of the path, this does the
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# same as get_scm() call which we skip in explicit_vcs_alias
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if not os.path.isdir(repo_path):
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raise VCSError("Given path %s is not a directory" % repo_path)
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except VCSError:
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log.exception(
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'Perhaps this repository is in db and not in '
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'filesystem run rescan repositories with '
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'"destroy old data" option from admin panel')
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return None
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return backend(repo_path=repo_path, *args, **kwargs)
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def get_backend(alias):
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"""
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Returns ``Repository`` class identified by the given alias or raises
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VCSError if alias is not recognized or backend class cannot be imported.
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"""
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if alias not in settings.BACKENDS:
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raise VCSError(
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"Given alias '%s' is not recognized! Allowed aliases:\n%s" %
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(alias, pformat(settings.BACKENDS.keys())))
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backend_path = settings.BACKENDS[alias]
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klass = import_class(backend_path)
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return klass
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def get_supported_backends():
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"""
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Returns list of aliases of supported backends.
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"""
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return settings.BACKENDS.keys()
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def get_vcsserver_version():
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from rhodecode.lib.vcs import connection
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data = connection.Service.get_vcsserver_service_data()
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if data and 'version' in data:
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return data['version']
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return None
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