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# -*- coding: utf-8 -*-
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# Copyright (C) 2015-2020 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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import os
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import atexit
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import logging
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import signal
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log = logging.getLogger(__name__)
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cache_keys_by_pid = set()
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def free_cache_keys(*args):
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ssh_cmd = os.environ.get('RC_CMD_SSH_WRAPPER')
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if ssh_cmd:
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return
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from rhodecode.model.db import Session, CacheKey
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if cache_keys_by_pid:
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try:
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for cache_proc in set(cache_keys_by_pid):
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like_expression = '{}%'.format(cache_proc)
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qry = CacheKey.query().filter(CacheKey.cache_key.like(like_expression))
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count = qry.count()
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log.info('Clearing %s: %s cache keys, total: %s', cache_proc, len(cache_keys_by_pid), count)
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qry.delete(synchronize_session='fetch')
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cache_keys_by_pid.remove(cache_proc)
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Session().commit()
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except Exception:
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log.exception('Failed to clear keys, exiting gracefully')
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atexit.register(free_cache_keys)
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signal.signal(signal.SIGTERM, free_cache_keys)
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signal.signal(signal.SIGINT, free_cache_keys)
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