old_contents: #
  # Author:: Noah Kantrowitz <noah@coderanger.net>
  #
  # Copyright 2014, Noah Kantrowitz
  #
  # 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.
  #
  
  import json
  import sys
  
  from .visitor import visit_fabfile
  
  def main():
      json.dump(visit_fabfile(), sys.stdout, indent=2 if sys.stdout.isatty() else None)
  
  if __name__ == '__main__':
      main()
  
new_contents: #
  # Author:: Noah Kantrowitz <noah@coderanger.net>
  #
  # Copyright 2014, Noah Kantrowitz
  #
  # 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.
  #
  
  import json
  import sys
  
  from .visitor import visit_fabfile
  
  def main(args):
      path = None
      if args:
          path = args[0]
      json.dump(visit_fabfile(path), sys.stdout, indent=2 if sys.stdout.isatty() else None)
  
  if __name__ == '__main__':
      main(sys.argv[1:])
  
subject: Allow passing in a path to a fabfile.