/usr/lib/python3/dist-packages/gnocchi/indexer/alembic/env.py is in python3-gnocchi 4.2.0-0ubuntu5.
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# Copyright 2015 Red Hat. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""A test module to exercise the Gnocchi API with gabbi."""
from alembic import context
from gnocchi.indexer import sqlalchemy
from gnocchi.indexer import sqlalchemy_base
# this is the Alembic Config object, which provides
# access to the values within the .ini file in use.
config = context.config
# add your model's MetaData object here
# for 'autogenerate' support
# from myapp import mymodel
# target_metadata = mymodel.Base.metadata
target_metadata = sqlalchemy_base.Base.metadata
# other values from the config, defined by the needs of env.py,
# can be acquired:
# my_important_option = config.get_main_option("my_important_option")
# ... etc.
def run_migrations_offline():
"""Run migrations in 'offline' mode.
This configures the context with just a URL
and not an Engine, though an Engine is acceptable
here as well. By skipping the Engine creation
we don't even need a DBAPI to be available.
Calls to context.execute() here emit the given string to the
script output.
"""
conf = config.conf
context.configure(url=conf.indexer.url,
target_metadata=target_metadata)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
conf = config.conf
indexer = sqlalchemy.SQLAlchemyIndexer(conf)
with indexer.facade.writer_connection() as connectable:
with connectable.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata
)
with context.begin_transaction():
context.run_migrations()
indexer.disconnect()
# If `alembic' was used directly from the CLI
if not hasattr(config, "conf"):
from gnocchi import service
config.conf = service.prepare_service([])
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()
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