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# Copyright (C) 2010-2020 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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from rhodecode.lib.vcs.exceptions import VCSError
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def import_class(class_path):
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"""
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Returns class from the given path.
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For example, in order to get class located at
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``vcs.backends.hg.MercurialRepository``:
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try:
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hgrepo = import_class('vcs.backends.hg.MercurialRepository')
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except VCSError:
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# hadle error
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"""
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splitted = class_path.split('.')
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mod_path = '.'.join(splitted[:-1])
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class_name = splitted[-1]
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try:
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class_mod = __import__(mod_path, {}, {}, [class_name])
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except ImportError as err:
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msg = "There was problem while trying to import backend class. "\
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"Original error was:\n%s" % err
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raise VCSError(msg)
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cls = getattr(class_mod, class_name)
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return cls
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