81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
from ... import create_engine
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from ... import exc
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from ...testing.provision import create_db
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from ...testing.provision import drop_db
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from ...testing.provision import log
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from ...testing.provision import run_reap_dbs
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from ...testing.provision import update_db_opts
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@update_db_opts.for_db("mssql")
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def _mssql_update_db_opts(db_url, db_opts):
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db_opts["legacy_schema_aliasing"] = False
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@create_db.for_db("mssql")
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def _mssql_create_db(cfg, eng, ident):
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with eng.connect().execution_options(isolation_level="AUTOCOMMIT") as conn:
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conn.execute("create database %s" % ident)
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conn.execute(
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"ALTER DATABASE %s SET ALLOW_SNAPSHOT_ISOLATION ON" % ident
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)
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conn.execute(
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"ALTER DATABASE %s SET READ_COMMITTED_SNAPSHOT ON" % ident
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)
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conn.execute("use %s" % ident)
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conn.execute("create schema test_schema")
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conn.execute("create schema test_schema_2")
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@drop_db.for_db("mssql")
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def _mssql_drop_db(cfg, eng, ident):
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with eng.connect().execution_options(isolation_level="AUTOCOMMIT") as conn:
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_mssql_drop_ignore(conn, ident)
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def _mssql_drop_ignore(conn, ident):
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try:
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# typically when this happens, we can't KILL the session anyway,
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# so let the cleanup process drop the DBs
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# for row in conn.execute(
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# "select session_id from sys.dm_exec_sessions "
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# "where database_id=db_id('%s')" % ident):
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# log.info("killing SQL server sesssion %s", row['session_id'])
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# conn.execute("kill %s" % row['session_id'])
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conn.execute("drop database %s" % ident)
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log.info("Reaped db: %s", ident)
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return True
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except exc.DatabaseError as err:
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log.warning("couldn't drop db: %s", err)
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return False
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@run_reap_dbs.for_db("mssql")
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def _reap_mssql_dbs(url, idents):
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log.info("db reaper connecting to %r", url)
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eng = create_engine(url)
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with eng.connect().execution_options(isolation_level="AUTOCOMMIT") as conn:
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log.info("identifiers in file: %s", ", ".join(idents))
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to_reap = conn.execute(
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"select d.name from sys.databases as d where name "
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"like 'TEST_%' and not exists (select session_id "
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"from sys.dm_exec_sessions "
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"where database_id=d.database_id)"
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)
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all_names = {dbname.lower() for (dbname,) in to_reap}
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to_drop = set()
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for name in all_names:
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if name in idents:
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to_drop.add(name)
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dropped = total = 0
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for total, dbname in enumerate(to_drop, 1):
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if _mssql_drop_ignore(conn, dbname):
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dropped += 1
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log.info(
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"Dropped %d out of %d stale databases detected", dropped, total
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)
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