mirror of https://github.com/sgoudham/Enso-Bot.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
3.3 KiB
Python
78 lines
3.3 KiB
Python
5 years ago
|
import sys
|
||
|
|
|
||
|
|
from psycopg2 import errorcodes
|
||
|
|
|
||
|
|
from django.db.backends.base.creation import BaseDatabaseCreation
|
||
|
|
from django.db.backends.utils import strip_quotes
|
||
|
|
|
||
|
|
|
||
|
|
class DatabaseCreation(BaseDatabaseCreation):
|
||
|
|
|
||
|
|
def _quote_name(self, name):
|
||
|
|
return self.connection.ops.quote_name(name)
|
||
|
|
|
||
|
|
def _get_database_create_suffix(self, encoding=None, template=None):
|
||
|
|
suffix = ""
|
||
|
|
if encoding:
|
||
|
|
suffix += " ENCODING '{}'".format(encoding)
|
||
|
|
if template:
|
||
|
|
suffix += " TEMPLATE {}".format(self._quote_name(template))
|
||
|
|
return suffix and "WITH" + suffix
|
||
|
|
|
||
|
|
def sql_table_creation_suffix(self):
|
||
|
|
test_settings = self.connection.settings_dict['TEST']
|
||
|
|
assert test_settings['COLLATION'] is None, (
|
||
|
|
"PostgreSQL does not support collation setting at database creation time."
|
||
|
|
)
|
||
|
|
return self._get_database_create_suffix(
|
||
|
|
encoding=test_settings['CHARSET'],
|
||
|
|
template=test_settings.get('TEMPLATE'),
|
||
|
|
)
|
||
|
|
|
||
|
|
def _database_exists(self, cursor, database_name):
|
||
|
|
cursor.execute('SELECT 1 FROM pg_catalog.pg_database WHERE datname = %s', [strip_quotes(database_name)])
|
||
|
|
return cursor.fetchone() is not None
|
||
|
|
|
||
|
|
def _execute_create_test_db(self, cursor, parameters, keepdb=False):
|
||
|
|
try:
|
||
|
|
if keepdb and self._database_exists(cursor, parameters['dbname']):
|
||
|
|
# If the database should be kept and it already exists, don't
|
||
|
|
# try to create a new one.
|
||
|
|
return
|
||
|
|
super()._execute_create_test_db(cursor, parameters, keepdb)
|
||
|
|
except Exception as e:
|
||
|
|
if getattr(e.__cause__, 'pgcode', '') != errorcodes.DUPLICATE_DATABASE:
|
||
|
|
# All errors except "database already exists" cancel tests.
|
||
|
|
self.log('Got an error creating the test database: %s' % e)
|
||
|
|
sys.exit(2)
|
||
|
|
elif not keepdb:
|
||
|
|
# If the database should be kept, ignore "database already
|
||
|
|
# exists".
|
||
|
|
raise e
|
||
|
|
|
||
|
|
def _clone_test_db(self, suffix, verbosity, keepdb=False):
|
||
|
|
# CREATE DATABASE ... WITH TEMPLATE ... requires closing connections
|
||
|
|
# to the template database.
|
||
|
|
self.connection.close()
|
||
|
|
|
||
|
|
source_database_name = self.connection.settings_dict['NAME']
|
||
|
|
target_database_name = self.get_test_db_clone_settings(suffix)['NAME']
|
||
|
|
test_db_params = {
|
||
|
|
'dbname': self._quote_name(target_database_name),
|
||
|
|
'suffix': self._get_database_create_suffix(template=source_database_name),
|
||
|
|
}
|
||
|
|
with self._nodb_connection.cursor() as cursor:
|
||
|
|
try:
|
||
|
|
self._execute_create_test_db(cursor, test_db_params, keepdb)
|
||
|
|
except Exception:
|
||
|
|
try:
|
||
|
|
if verbosity >= 1:
|
||
|
|
self.log('Destroying old test database for alias %s...' % (
|
||
|
|
self._get_database_display_str(verbosity, target_database_name),
|
||
|
|
))
|
||
|
|
cursor.execute('DROP DATABASE %(dbname)s' % test_db_params)
|
||
|
|
self._execute_create_test_db(cursor, test_db_params, keepdb)
|
||
|
|
except Exception as e:
|
||
|
|
self.log('Got an error cloning the test database: %s' % e)
|
||
|
|
sys.exit(2)
|