• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1#!/usr/bin/env python
2
3# Copyright 2016 Google Inc.
4#
5# Use of this source code is governed by a BSD-style license that can be
6# found in the LICENSE file.
7
8import hashlib
9import os
10import shutil
11import stat
12import sys
13import urllib2
14
15os.chdir(os.path.join(os.path.dirname(__file__), os.pardir))
16
17dst = 'bin/gn.exe' if 'win32' in sys.platform else 'bin/gn'
18
19sha1 = '2f27ff0b6118e5886df976da5effa6003d19d1ce' if 'linux'  in sys.platform else \
20       '9be792dd9010ce303a9c3a497a67bcc5ac8c7666' if 'darwin' in sys.platform else \
21       'eb69be2d984b4df60a8c21f598135991f0ad1742'  # Windows
22
23def sha1_of_file(path):
24  h = hashlib.sha1()
25  if os.path.isfile(path):
26    with open(path, 'rb') as f:
27      h.update(f.read())
28  return h.hexdigest()
29
30if sha1_of_file(dst) != sha1:
31  with open(dst, 'wb') as f:
32    f.write(urllib2.urlopen('https://chromium-gn.storage-download.googleapis.com/' + sha1).read())
33
34  os.chmod(dst, stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR |
35                stat.S_IRGRP                | stat.S_IXGRP |
36                stat.S_IROTH                | stat.S_IXOTH )
37
38# We'll also copy to a path that depot_tools' GN wrapper will expect to find the binary.
39copy_path = 'buildtools/linux64/gn' if 'linux'  in sys.platform else \
40            'buildtools/mac/gn'     if 'darwin' in sys.platform else \
41            'buildtools/win/gn.exe'
42if os.path.isdir(os.path.dirname(copy_path)):
43  shutil.copy(dst, copy_path)
44