text: # Copyright 2018 The Texar Authors. All Rights Reserved.
  #
  # 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.
  """Downloads data.
  """
  import tensorflow as tf
  import texar as tx
  
  # pylint: disable=invalid-name
  
  flags = tf.flags
  
  flags.DEFINE_string("data", "iwslt14", "Data to download [iwslt14|toy_copy]")
  
  FLAGS = flags.FLAGS
  
  def prepare_data():
      """Downloads data.
      """
      if FLAGS.data == 'iwslt14':
          tx.data.maybe_download(
              urls='https://drive.google.com/file/d/'
                   '1y4mUWXRS2KstgHopCS9koZ42ENOh6Yb9/view?usp=sharing',
              path='./',
              filenames='iwslt14.zip',
              extract=True)
      elif FLAGS.data == 'toy_copy':
          tx.data.maybe_download(
              urls='https://drive.google.com/file/d/'
                   '1fENE2rakm8vJ8d3voWBgW4hGlS6-KORW/view?usp=sharing',
              path='./',
              filenames='toy_copy.zip',
              extract=True)
      else:
          raise ValueError('Unknown data: {}'.format(FLAGS.data))
  
  def main():
      """Entrypoint.
      """
      prepare_data()
  
  if __name__ == '__main__':
      main()
  