1#!/usr/bin/env python3 2# ############################################################################# 3# Copyright (c) 2018-present lzutao <taolzu(at)gmail.com> 4# All rights reserved. 5# 6# This source code is licensed under both the BSD-style license (found in the 7# LICENSE file in the root directory of this source tree) and the GPLv2 (found 8# in the COPYING file in the root directory of this source tree). 9# ############################################################################# 10import re 11 12 13def find_version_tuple(filepath): 14 version_file_data = None 15 with open(filepath) as fd: 16 version_file_data = fd.read() 17 18 patterns = r"""#\s*define\s+LZ4_VERSION_MAJOR\s+([0-9]+).*$ 19#\s*define\s+LZ4_VERSION_MINOR\s+([0-9]+).*$ 20#\s*define\s+LZ4_VERSION_RELEASE\s+([0-9]+).*$ 21""" 22 regex = re.compile(patterns, re.MULTILINE) 23 version_match = regex.search(version_file_data) 24 if version_match: 25 return version_match.groups() 26 raise Exception("Unable to find version string.") 27 28 29def main(): 30 import argparse 31 parser = argparse.ArgumentParser(description='Print lz4 version from lib/lz4.h') 32 parser.add_argument('file', help='path to lib/lz4.h') 33 args = parser.parse_args() 34 version_tuple = find_version_tuple(args.file) 35 print('.'.join(version_tuple)) 36 37 38if __name__ == '__main__': 39 main() 40