def _recursive_copy(src_dir, dest_dir):
  """Copy the contents of src_dir into the folder dest_dir.
  Args:
    src_dir: gsc or local path.
    dest_dir: gcs or local path.
  When called, dest_dir should exist.
  """
  src_dir = python_portable_string(src_dir)
  dest_dir = python_portable_string(dest_dir)

  file_io.recursive_create_dir(dest_dir)
  for file_name in file_io.list_directory(src_dir):
    old_path = os.path.join(src_dir, file_name)
    new_path = os.path.join(dest_dir, file_name)

    if file_io.is_directory(old_path):
      _recursive_copy(old_path, new_path)
    else:
      file_io.copy(old_path, new_path, overwrite=True) 

def recursive_copy(src_dir, dest_dir):
  """Copy the contents of src_dir into the folder dest_dir.
  Args:
    src_dir: gsc or local path.
    dest_dir: gcs or local path.
  """

  file_io.recursive_create_dir(dest_dir)
  for file_name in file_io.list_directory(src_dir):
    old_path = os.path.join(src_dir, file_name)
    new_path = os.path.join(dest_dir, file_name)

    if file_io.is_directory(old_path):
      recursive_copy(old_path, new_path)
    else:
      file_io.copy(old_path, new_path, overwrite=True) 

def recursive_copy(src_dir, dest_dir):
  """Copy the contents of src_dir into the folder dest_dir.
  Args:
    src_dir: gsc or local path.
    dest_dir: gcs or local path.
  """

  file_io.recursive_create_dir(dest_dir)
  for file_name in file_io.list_directory(src_dir):
    old_path = os.path.join(src_dir, file_name)
    new_path = os.path.join(dest_dir, file_name)

    if file_io.is_directory(old_path):
      recursive_copy(old_path, new_path)
    else:
      file_io.copy(old_path, new_path, overwrite=True) 

def create_dir_test():
  """Verifies file_io directory handling methods ."""

  starttime = int(round(time.time() * 1000))
  dir_name = "%s/tf_gcs_test_%s" % (FLAGS.gcs_bucket_url, starttime)
  print("Creating dir %s" % dir_name)
  file_io.create_dir(dir_name)
  elapsed = int(round(time.time() * 1000)) - starttime
  print("Created directory in: %d milliseconds" % elapsed)
  # Check that the directory exists.
  dir_exists = file_io.is_directory(dir_name)
  print("%s directory exists: %s" % (dir_name, dir_exists))

  # List contents of just created directory.
  print("Listing directory %s." % dir_name)
  starttime = int(round(time.time() * 1000))
  print(file_io.list_directory(dir_name))
  elapsed = int(round(time.time() * 1000)) - starttime
  print("Listed directory %s in %s milliseconds" % (dir_name, elapsed))

  # Delete directory.
  print("Deleting directory %s." % dir_name)
  starttime = int(round(time.time() * 1000))
  file_io.delete_recursively(dir_name)
  elapsed = int(round(time.time() * 1000)) - starttime
  print("Deleted directory %s in %s milliseconds" % (dir_name, elapsed))