diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/storage/engines/sqlite.py | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/synapse/storage/engines/sqlite.py b/synapse/storage/engines/sqlite.py index 28751e89a5..ca8c59297c 100644 --- a/synapse/storage/engines/sqlite.py +++ b/synapse/storage/engines/sqlite.py @@ -34,6 +34,13 @@ class Sqlite3Engine(BaseDatabaseEngine[sqlite3.Connection, sqlite3.Cursor]): ":memory:", ) + # A connection to a database that has already been prepared, to use as a + # base for an in-memory connection. This is used during unit tests to + # speed up setting up the DB. + self._prepped_conn: Optional[sqlite3.Connection] = database_config.get( + "_TEST_PREPPED_CONN" + ) + if platform.python_implementation() == "PyPy": # pypy's sqlite3 module doesn't handle bytearrays, convert them # back to bytes. @@ -84,7 +91,15 @@ class Sqlite3Engine(BaseDatabaseEngine[sqlite3.Connection, sqlite3.Cursor]): # In memory databases need to be rebuilt each time. Ideally we'd # reuse the same connection as we do when starting up, but that # would involve using adbapi before we have started the reactor. - prepare_database(db_conn, self, config=None) + # + # If we have a `prepped_conn` we can use that to initialise the DB, + # otherwise we need to call `prepare_database`. + if self._prepped_conn is not None: + # Initialise the new DB from the pre-prepared DB. + assert isinstance(db_conn.conn, sqlite3.Connection) + self._prepped_conn.backup(db_conn.conn) + else: + prepare_database(db_conn, self, config=None) db_conn.create_function("rank", 1, _rank) db_conn.execute("PRAGMA foreign_keys = ON;") |