| #!/usr/bin/python |
| # Copyright (c) 2015 The Native Client Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """This script is a faster, specialized alternative to package_version.py for |
| getting the toolchain revision. Speed matters when running gn gen, for example. |
| """ |
| |
| from __future__ import print_function |
| |
| import json |
| import os.path |
| import sys |
| |
| BUILD_DIR = os.path.dirname(os.path.abspath(__file__)) |
| NACL_DIR = os.path.dirname(BUILD_DIR) |
| DEFAULT_REVISIONS_DIR = os.path.join(NACL_DIR, 'toolchain_revisions') |
| |
| |
| def main(): |
| if len(sys.argv) < 2: |
| print('usage: %s toolchain_package_names...' % sys.argv[0]) |
| sys.exit(1) |
| for package in sys.argv[1:]: |
| revisions_file = os.path.join(DEFAULT_REVISIONS_DIR, package + '.json') |
| if not os.path.exists(revisions_file): |
| print('unknown toolchain %s' % package) |
| sys.exit(1) |
| f = open(revisions_file) |
| data = json.load(f) |
| f.close() |
| print(data['revision']) |
| |
| |
| if __name__ == '__main__': |
| main() |