old_contents: USER_AGENT_PRODUCT="Ansible-gce"
  USER_AGENT_VERSION="v1"
  
  def gce_connect(module):
      """Return a Google Cloud Engine connection."""
      service_account_email = module.params.get('service_account_email', None)
      pem_file = module.params.get('pem_file', None)
      project_id = module.params.get('project_id', None)
  
      if service_account_email is None or pem_file is None:
          # Load in the libcloud secrets file
          try:
              import secrets
          except ImportError:
              secrets = None
  
          service_account_email, pem_file = getattr(secrets, 'GCE_PARAMS', (None, None))
          keyword_params = getattr(secrets, 'GCE_KEYWORD_PARAMS', {})
          project_id = keyword_params.get('project', None)
  
      if service_account_email is None or pem_file is None or project_id is None:
          module.fail_json(msg='Missing GCE connection parameters in libcloud secrets file.')
          return None
  
      try:
          gce = get_driver(Provider.GCE)(service_account_email, pem_file, datacenter=module.params.get('zone'), project=project_id)
          gce.connection.user_agent_append("%s/%s" % (
              USER_AGENT_PRODUCT, USER_AGENT_VERSION))
      except (RuntimeError, ValueError), e:
          module.fail_json(msg=str(e), changed=False)
      except Exception, e:
          module.fail_json(msg=unexpected_error_msg(e), changed=False)
  
      return gce
  
  def unexpected_error_msg(error):
      """Create an error string based on passed in error."""
      msg='Unexpected response: HTTP return_code['
      msg+='%s], API error code[%s] and message: %s' % (
          error.http_code, error.code, str(error.value))
      return msg
  
new_contents: # This code is part of Ansible, but is an independent component.
  # This particular file snippet, and this file snippet only, is BSD licensed.
  # Modules you write using this snippet, which is embedded dynamically by Ansible
  # still belong to the author of the module, and may assign their own license
  # to the complete work.
  #
  # Copyright (c), Franck Cuny <franck.cuny@gmail.com>, 2014
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without modification,
  # are permitted provided that the following conditions are met:
  #
  #    * Redistributions of source code must retain the above copyright
  #      notice, this list of conditions and the following disclaimer.
  #    * Redistributions in binary form must reproduce the above copyright notice,
  #      this list of conditions and the following disclaimer in the documentation
  #      and/or other materials provided with the distribution.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  # IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  # PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  # USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  #
  
  USER_AGENT_PRODUCT="Ansible-gce"
  USER_AGENT_VERSION="v1"
  
  def gce_connect(module):
      """Return a Google Cloud Engine connection."""
      service_account_email = module.params.get('service_account_email', None)
      pem_file = module.params.get('pem_file', None)
      project_id = module.params.get('project_id', None)
  
      if service_account_email is None or pem_file is None:
          # Load in the libcloud secrets file
          try:
              import secrets
          except ImportError:
              secrets = None
  
          service_account_email, pem_file = getattr(secrets, 'GCE_PARAMS', (None, None))
          keyword_params = getattr(secrets, 'GCE_KEYWORD_PARAMS', {})
          project_id = keyword_params.get('project', None)
  
      if service_account_email is None or pem_file is None or project_id is None:
          module.fail_json(msg='Missing GCE connection parameters in libcloud secrets file.')
          return None
  
      try:
          gce = get_driver(Provider.GCE)(service_account_email, pem_file, datacenter=module.params.get('zone'), project=project_id)
          gce.connection.user_agent_append("%s/%s" % (
              USER_AGENT_PRODUCT, USER_AGENT_VERSION))
      except (RuntimeError, ValueError), e:
          module.fail_json(msg=str(e), changed=False)
      except Exception, e:
          module.fail_json(msg=unexpected_error_msg(e), changed=False)
  
      return gce
  
  def unexpected_error_msg(error):
      """Create an error string based on passed in error."""
      msg='Unexpected response: HTTP return_code['
      msg+='%s], API error code[%s] and message: %s' % (
          error.http_code, error.code, str(error.value))
      return msg
  
subject: Add BSD license to module_utils/gce.py