old_contents: #! /usr/bin/env python
  #
  #    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.
  
  """Generate list of cinder drivers"""
  
  from cinder.interface import util
  
  
  def format_description(desc):
      desc = desc or '<None>'
      lines = desc.rstrip('\n').split('\n')
      for line in lines:
          print('    %s' % line)
  
  
  def print_drivers(drivers, config_name):
      # for driver in drivers.sort(key=lambda x: x.class_fqn):
      for driver in sorted(drivers, key=lambda x: x.class_fqn):
          print(driver.class_name)
          print('-' * len(driver.class_name))
          if driver.version:
              print('* Version: %s' % driver.version)
          print('* %s=%s' % (config_name, driver.class_fqn))
          print('* Description:')
          format_description(driver.desc)
          print('')
      print('')
  
  
  def main():
      print('VOLUME DRIVERS')
      print('==============')
      print_drivers(util.get_volume_drivers(), 'volume_driver')
  
      print('BACKUP DRIVERS')
      print('==============')
      print_drivers(util.get_backup_drivers(), 'backup_driver')
  
      print('FC ZONE MANAGER DRIVERS')
      print('=======================')
      print_drivers(util.get_fczm_drivers(), 'zone_driver')
  
  
  if __name__ == '__main__':
      main()
  
new_contents: #! /usr/bin/env python
  #
  #    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.
  
  """Generate list of cinder drivers"""
  
  import os
  
  from cinder.interface import util
  
  
  def format_description(desc):
      desc = desc or '<None>'
      lines = desc.rstrip('\n').split('\n')
      for line in lines:
          print('    %s' % line)
  
  
  def print_drivers(drivers, config_name):
      # for driver in drivers.sort(key=lambda x: x.class_fqn):
      for driver in sorted(drivers, key=lambda x: x.class_fqn):
          print(driver.class_name)
          print('-' * len(driver.class_name))
          if driver.version:
              print('* Version: %s' % driver.version)
          print('* %s=%s' % (config_name, driver.class_fqn))
          print('* Description:')
          format_description(driver.desc)
          print('')
      print('')
  
  
  def main():
      tools_dir = os.path.dirname(os.path.abspath(__file__))
      cinder_root = os.path.dirname(tools_dir)
      cur_dir = os.getcwd()
      os.chdir(cinder_root)
  
      try:
          print('VOLUME DRIVERS')
          print('==============')
          print_drivers(util.get_volume_drivers(), 'volume_driver')
  
          print('BACKUP DRIVERS')
          print('==============')
          print_drivers(util.get_backup_drivers(), 'backup_driver')
  
          print('FC ZONE MANAGER DRIVERS')
          print('=======================')
          print_drivers(util.get_fczm_drivers(), 'zone_driver')
      finally:
          os.chdir(cur_dir)
  
  if __name__ == '__main__':
      main()
  
subject: Remove generate_driver_list dependency on cur dir