import os

  def enforce_tmp(name, contents=None):
  """
  Enforce a temp file has the desired contents.
  name
  The name of the file to change. (Under '/tmp'.)
  contents
  The value you will be storing.
  """

  return_dict = {
    'name': name,
    'changes': {},
    'result': False,
    'comment': ''
  }

  tmp_file = os.path.join('/tmp', name)
  file_ok = False
  content_ok = False
  file_contents = None

  if os.path.isfile(tmp_file):
    file_ok = True
    with open(tmp_file, 'r') as fp:
      file_contents = fp.read()
      file_contents = file_contents.rstrip('\n')

  if file_contents == contents:
    content_ok = True

  comments = ""
  if file_ok:
    comments += 'File exists ({0})\n'.format(tmp_file)
  else:
    comments += 'File created ({0})\n'.format(tmp_file)
  if content_ok:
    comments += 'Contents correct ({0})\n'.format(file_contents)
  else:
    comments += 'Contents updated ({0})\n'.format(contents)
  return_dict['comment'] = comments

  # Check if this is a test run, if so do not change anything.
  if __opts__['test'] == True:
    return_dict['result'] = None
    return_dict['changes'] = {}
    if not content_ok:
      return_dict['comment'] = {
        'contents': {
          'old': file_contents,
          'new': contents
        }
      }
    return return_dict

  if not content_ok:
    with open(tmp_file, 'w') as fp:
      contents += "\n"
      fp.write(contents)
    return_dict['result'] = True
    return_dict['changes'] = {
      'contents': {
      'old': file_contents,
      'new': contents
      }
    }
  else:
    return_dict['changes'] = {}
    return_dict['result'] = True

  return return_dict