text: # -*- coding: utf-8 -*-
  # 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.
  
  """
  Simple routines to map host architectures as expected by various components.
  """
  
  import os
  
  
  def kernel_arch():
      """Return the kernel arch."""
      return os.uname()[4]
  
  
  def dib_arch():
      """Return the kernel arch or the more appripriate DiB arch."""
      return {'x86_64': 'amd64'}.get(kernel_arch(), kernel_arch())
  
  
  def cirros_arch():
      """Return the kernel arch or the more appripriate cirros arch."""
      return {'ppc64le': 'powerpc'}.get(kernel_arch(), kernel_arch())
  