File: conftest.py

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#!/usr/bin/env python3
#
#  Copyright (C) 2018 Codethink Limited
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU Lesser General Public
#  License as published by the Free Software Foundation; either
#  version 2 of the License, or (at your option) any later version.
#
#  This library 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
#  Lesser General Public License for more details.
#
#  You should have received a copy of the GNU Lesser General Public
#  License along with this library. If not, see <http://www.gnu.org/licenses/>.
#
#  Authors:
#        Tristan Maat <tristan.maat@codethink.co.uk>

import os
import pytest
import shutil
import tempfile


@pytest.fixture(scope='session')
def integration_cache(request):

    # Set the tempdir to the INTEGRATION_CACHE variable, or the
    # default if that is not set.
    cache_dir = os.environ.get('INTEGRATION_CACHE', tempfile.gettempdir())

    # We use a separate tempdir to cache sources and artifacts to
    # increase test speed
    cache = os.path.join(cache_dir, 'integration-cache')
    yield cache

    # Clean up the artifacts after each test run - we only want to
    # cache sources
    try:
        shutil.rmtree(os.path.join(cache, 'artifacts'))
    except FileNotFoundError:
        pass