old_contents: # Copyright 2016 Red Hat, Inc.
  # 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.
  import logging
  
  from oslo_concurrency import processutils
  
  LOG = logging.getLogger(__name__)
  
  
  def create_tarball(directory, filename, options='-czf'):
      """Create a tarball of a directory."""
      LOG.debug('Creating tarball of %s at location %s' % (directory, filename))
      processutils.execute('/usr/bin/tar', '-C', directory, options, filename,
                           '--exclude', '.git', '--exclude', '.tox',
                           '--exclude', '*.pyc', '--exclude', '*.pyo', '.')
  
  
  def tarball_extract_to_swift_container(object_client, filename, container):
      LOG.debug('Uploading filename %s to Swift container %s' % (filename,
                                                                 container))
      with open(filename, 'r') as f:
          object_client.put_object(
              container=container,
              obj='',
              contents=f,
              query_string='extract-archive=tar.gz',
              headers={'X-Detect-Content-Type': 'true'}
          )
  
new_contents: # Copyright 2016 Red Hat, Inc.
  # 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.
  import logging
  
  from oslo_concurrency import processutils
  
  LOG = logging.getLogger(__name__)
  DEFAULT_TARBALL_EXCLUDES = ['.git', '.tox', '*.pyc', '*.pyo']
  
  
  def create_tarball(directory, filename, options='-czf',
                     excludes=DEFAULT_TARBALL_EXCLUDES):
      """Create a tarball of a directory."""
      LOG.debug('Creating tarball of %s at location %s' % (directory, filename))
      cmd = ['/usr/bin/tar', '-C', directory, options, filename]
      for x in excludes:
          cmd.extend(['--exclude', x])
      cmd.extend(['.'])
      processutils.execute(*cmd)
  
  
  def tarball_extract_to_swift_container(object_client, filename, container):
      LOG.debug('Uploading filename %s to Swift container %s' % (filename,
                                                                 container))
      with open(filename, 'r') as f:
          object_client.put_object(
              container=container,
              obj='',
              contents=f,
              query_string='extract-archive=tar.gz',
              headers={'X-Detect-Content-Type': 'true'}
          )
  
subject: Add excludes option to create_tarball function