old_contents: #    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.
  
  from oslo_config import cfg
  import pkg_resources
  
  from neutron._i18n import _
  
  
  MIGRATION_ENTRYPOINTS = 'neutron.db.alembic_migrations'
  migration_entrypoints = {
      entrypoint.name: entrypoint
      for entrypoint in pkg_resources.iter_entry_points(MIGRATION_ENTRYPOINTS)
  }
  
  INSTALLED_SUBPROJECTS = [project_ for project_ in migration_entrypoints]
  
  CORE_OPTS = [
      cfg.StrOpt('subproject',
                 choices=INSTALLED_SUBPROJECTS,
                 help=(_("The subproject to execute the command against. "
                         "Can be one of: '%s'.")
                       % "', '".join(INSTALLED_SUBPROJECTS))),
      cfg.BoolOpt('split_branches',
                  default=True,
                  deprecated_for_removal=True,
                  help=_("DEPRECATED in newton, will be removed in ocata."
                         "Alembic environments integrating with "
                         "Neutron must implement split (contract and expand) "
                         "branches file structure."))
  ]
  
  DB_OPTS = [
      cfg.StrOpt('connection',
                 default='',
                 secret=True,
                 help=_('URL to database')),
      cfg.StrOpt('engine',
                 default='',
                 help=_('Database engine for which script will be generated '
                        'when using offline migration.')),
  ]
  
  
  def register_db_cli_opts(conf):
      conf.register_cli_opts(CORE_OPTS)
      conf.register_cli_opts(DB_OPTS, 'database')
  
new_contents: #    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.
  
  from oslo_config import cfg
  import pkg_resources
  
  from neutron._i18n import _
  
  
  MIGRATION_ENTRYPOINTS = 'neutron.db.alembic_migrations'
  migration_entrypoints = {
      entrypoint.name: entrypoint
      for entrypoint in pkg_resources.iter_entry_points(MIGRATION_ENTRYPOINTS)
  }
  
  INSTALLED_SUBPROJECTS = [project_ for project_ in migration_entrypoints]
  
  CORE_OPTS = [
      cfg.StrOpt('subproject',
                 choices=INSTALLED_SUBPROJECTS,
                 help=(_("The subproject to execute the command against. "
                         "Can be one of: '%s'.")
                       % "', '".join(INSTALLED_SUBPROJECTS)))
  ]
  
  DB_OPTS = [
      cfg.StrOpt('connection',
                 default='',
                 secret=True,
                 help=_('URL to database')),
      cfg.StrOpt('engine',
                 default='',
                 help=_('Database engine for which script will be generated '
                        'when using offline migration.')),
  ]
  
  
  def register_db_cli_opts(conf):
      conf.register_cli_opts(CORE_OPTS)
      conf.register_cli_opts(DB_OPTS, 'database')
  
subject: Remove deprecated "split_branches" config option