OpenHome/venv/Lib/site-packages/sqlalchemy/dialects/mysql/provision.py

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2021-07-21 21:33:05 +02:00
from ... import exc
from ...testing.provision import configure_follower
from ...testing.provision import create_db
from ...testing.provision import drop_db
from ...testing.provision import generate_driver_url
from ...testing.provision import temp_table_keyword_args
@generate_driver_url.for_db("mysql", "mariadb")
def generate_driver_url(url, driver, query_str):
backend = url.get_backend_name()
# NOTE: at the moment, tests are running mariadbconnector
# against both mariadb and mysql backends. if we want this to be
# limited, do the decision making here to reject a "mysql+mariadbconnector"
# URL. Optionally also re-enable the module level
# MySQLDialect_mariadbconnector.is_mysql flag as well, which must include
# a unit and/or functional test.
# all the Jenkins tests have been running mysqlclient Python library
# built against mariadb client drivers for years against all MySQL /
# MariaDB versions going back to MySQL 5.6, currently they can talk
# to MySQL databases without problems.
if backend == "mysql":
dialect_cls = url.get_dialect()
if dialect_cls._is_mariadb_from_url(url):
backend = "mariadb"
new_url = url.set(
drivername="%s+%s" % (backend, driver)
).update_query_string(query_str)
try:
new_url.get_dialect()
except exc.NoSuchModuleError:
return None
else:
return new_url
@create_db.for_db("mysql", "mariadb")
def _mysql_create_db(cfg, eng, ident):
with eng.begin() as conn:
try:
_mysql_drop_db(cfg, conn, ident)
except Exception:
pass
with eng.begin() as conn:
conn.exec_driver_sql(
"CREATE DATABASE %s CHARACTER SET utf8mb4" % ident
)
conn.exec_driver_sql(
"CREATE DATABASE %s_test_schema CHARACTER SET utf8mb4" % ident
)
conn.exec_driver_sql(
"CREATE DATABASE %s_test_schema_2 CHARACTER SET utf8mb4" % ident
)
@configure_follower.for_db("mysql", "mariadb")
def _mysql_configure_follower(config, ident):
config.test_schema = "%s_test_schema" % ident
config.test_schema_2 = "%s_test_schema_2" % ident
@drop_db.for_db("mysql", "mariadb")
def _mysql_drop_db(cfg, eng, ident):
with eng.begin() as conn:
conn.exec_driver_sql("DROP DATABASE %s_test_schema" % ident)
conn.exec_driver_sql("DROP DATABASE %s_test_schema_2" % ident)
conn.exec_driver_sql("DROP DATABASE %s" % ident)
@temp_table_keyword_args.for_db("mysql", "mariadb")
def _mysql_temp_table_keyword_args(cfg, eng):
return {"prefixes": ["TEMPORARY"]}