new_contents: #!/usr/bin/env python3
  #
  # Copyright (C) 2019 VyOS maintainers and contributors
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU General Public License version 2 or later as
  # published by the Free Software Foundation.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  # GNU General Public License for more details.
  #
  # You should have received a copy of the GNU General Public License
  # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  #
  #
  
  """Load config file from within config session.
  Config file specified by URI or path (without scheme prefix).
  Example: load https://somewhere.net/some.config
          or
           load /tmp/some.config
  """
  
  import sys
  import tempfile
  import vyos.defaults
  import vyos.remote
  from vyos.config import Config, VyOSError
  from vyos.migrator import Migrator, MigratorError
  
  system_config_file = 'config.boot'
  
  class LoadConfig(Config):
      """A subclass for calling 'loadFile'.
      This does not belong in config.py, and only has a single caller.
      """
      def load_config(self, file_path):
          cmd = [self._cli_shell_api, 'loadFile', file_path]
          self._run(cmd)
  
  if len(sys.argv) > 1:
      file_name = sys.argv[1]
  else:
      file_name = system_config_file
  
  configdir = vyos.defaults.directories['config']
  
  protocols = ['scp', 'sftp', 'http', 'https', 'ftp', 'tftp']
  
  if any(x in file_name for x in protocols):
      config_file = vyos.remote.get_remote_config(file_name)
      if not config_file:
          sys.exit("No config file by that name.")
  else:
      canonical_path = '{0}/{1}'.format(configdir, file_name)
      try:
          with open(canonical_path, 'r') as f:
              config_file = f.read()
      except OSError as err1:
          try:
              with open(file_name, 'r') as f:
                  config_file = f.read()
          except OSError as err2:
              sys.exit('{0}\n{1}'.format(err1, err2))
  
  config = LoadConfig()
  
  print("Loading configuration from '{}'".format(file_name))
  
  with tempfile.NamedTemporaryFile() as fp:
      with open(fp.name, 'w') as fd:
          fd.write(config_file)
  
      migration = Migrator(fp.name)
      try:
          migration.run()
      except MigratorError as err:
          sys.exit('{}'.format(err))
  
      try:
          config.load_config(fp.name)
      except VyOSError as err:
          sys.exit('{}'.format(err))
  
  if config.session_changed():
      print("Load complete. Use 'commit' to make changes effective.")
  else:
      print("No configuration changes to commit.")
  
subject: Rewrite the config load script