def gunzip_file_os()

in parquet_flask/utils/file_utils.py [0:0]

• 15 lines of code
• 7 McCabe index (conditional complexity)

    def gunzip_file_os(zipped_file_path, output_file_path=None):
        if not FileUtils.file_exist(zipped_file_path):
            raise ValueError('missing file: {}'.format(zipped_file_path))
        session = Popen(['gunzip', zipped_file_path], stdout=PIPE, stderr=PIPE)
        stdout, stderr = session.communicate()
        if stderr:
            raise RuntimeError('error while gunzipping the file with Popen. filename: {}. error: {}'.format(zipped_file_path, stderr))
        default_output_path = zipped_file_path[:-3]
        if not FileUtils.file_exist(default_output_path):
            raise ValueError('missing gunzipped file: {}'.format(default_output_path))
        if output_file_path is None:
            output_file_path = default_output_path
        if FileUtils.file_exist(output_file_path) and default_output_path != output_file_path:
            os.renames(default_output_path, output_file_path)
        return output_file_path