old_contents: # -*- coding: utf8 -*-
  # Copyright © 2015 Philippe Pepiot
  #
  # 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 __future__ import unicode_literals
  
  import collections
  import pipes
  
  
  CommandResult = collections.namedtuple('CommandResult', [
      'rc', 'stdout', 'stderr', 'command',
  ])
  
  
  class BaseBackend(object):
  
      def quote(self, command, *args):
          return command % tuple(pipes.quote(a) for a in args)
  
      @staticmethod
      def parse_hostspec(hostspec):
          host = hostspec
          user = None
          port = None
          if "@" in host:
              user, host = host.split("@", 1)
          if ":" in host:
              host, port = host.split(":", 1)
          return host, user, port
  
      def run(self, command, *args):
          raise NotImplementedError
  
new_contents: # -*- coding: utf8 -*-
  # Copyright © 2015 Philippe Pepiot
  #
  # 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 __future__ import unicode_literals
  
  import collections
  import pipes
  
  
  CommandResult = collections.namedtuple('CommandResult', [
      'rc', 'stdout', 'stderr', 'command',
  ])
  
  
  class BaseBackend(object):
  
      def quote(self, command, *args):
          if args:
              return command % tuple(pipes.quote(a) for a in args)
          else:
              return command
  
      @staticmethod
      def parse_hostspec(hostspec):
          host = hostspec
          user = None
          port = None
          if "@" in host:
              user, host = host.split("@", 1)
          if ":" in host:
              host, port = host.split(":", 1)
          return host, user, port
  
      def run(self, command, *args):
          raise NotImplementedError
  
subject: Fix safe_ssh command without arguments