90 lines
3.1 KiB
Python
90 lines
3.1 KiB
Python
# Copyright 2015 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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import tempfile
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from alembic import command
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from alembic import config as alembic_config
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from oslo_config import cfg
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import sqlalchemy
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from subunit2sql.db import api as session
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CONF = cfg.CONF
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SQLITE_TEST_DATABASE_PATH = tempfile.mkstemp('subunit2sql.db')[1]
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script_location = os.path.join(os.path.dirname(os.path.dirname(
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os.path.abspath(__file__))), 'migrations')
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def get_connect_string(backend,
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user="openstack_citest",
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passwd="openstack_citest",
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database="openstack_citest"):
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"""Generate a db uri for testing locally.
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Try to get a connection with a very specific set of values, if we get
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these then we'll run the tests, otherwise they are skipped
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"""
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if backend == "mysql":
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backend = "mysql+pymysql"
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elif backend == "postgres":
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backend = "postgresql+psycopg2"
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if backend == "sqlite":
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return "sqlite:///" + SQLITE_TEST_DATABASE_PATH
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return ("%(backend)s://%(user)s:%(passwd)s@localhost/%(database)s"
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% {'backend': backend, 'user': user, 'passwd': passwd,
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'database': database})
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def is_backend_avail(backend,
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user="openstack_citest",
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passwd="openstack_citest",
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database="openstack_citest"):
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try:
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if backend == "mysql":
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connect_uri = get_connect_string("mysql", user=user,
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passwd=passwd, database=database)
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elif backend == "postgres":
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connect_uri = get_connect_string("postgres", user=user,
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passwd=passwd, database=database)
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elif backend == "sqlite":
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return True
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engine = sqlalchemy.create_engine(connect_uri)
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connection = engine.connect()
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except Exception:
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# intentionally catch all to handle exceptions even if we don't
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# have any backend code loaded.
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return False
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else:
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connection.close()
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engine.dispose()
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return True
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def run_migration(target, engine=None):
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engine = engine or session.get_engine()
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engine.connect()
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config = alembic_config.Config(os.path.join(script_location,
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'alembic.ini'))
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config.set_main_option('script_location', 'subunit2sql:migrations')
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config.subunit2sql_config = CONF
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with engine.begin() as connection:
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config.attributes['connection'] = connection
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command.upgrade(config, target)
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engine.dispose()
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