Merge "Fix ota build error when using boot variable files" am: 775187f9

    with open(tmp_file, 'wb') as f:

      f.write(input_file.read(fn))

    return tmp_file

  elif zipfile.is_zipfile(input_file):

    with zipfile.ZipFile(input_file, "r", allowZip64=True) as zfp:

      tmp_file = MakeTempFile(os.path.basename(fn))

      with open(tmp_file, "wb") as fp:

        fp.write(zfp.read(fn))

      return tmp_file

  else:

    if not os.path.isdir(input_file):

      raise ValueError(

          "Invalid input_file, accepted inputs are ZipFile object, path to .zip file on disk, or path to extracted directory. Actual: " + input_file)

    file = os.path.join(input_file, *fn.split("/"))

    if not os.path.exists(file):

      raise KeyError(fn)