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 8 import hashlib 9 import os 10 import shutil 11 import stat 12 import sys 13 import urllib2 14 15 os.chdir(os.path.join(os.path.dirname(__file__), os.pardir)) 16 17 dst = 'bin/gn.exe' if 'win32' in sys.platform else 'bin/gn' 18 19 sha1 = '113f5b30a7cfae72015600a119590d45d64c0d0d' if 'linux' in sys.platform else \ 20 'b33a6d33c2b2f42762f902672ffdf4837fa1c662' if 'darwin' in sys.platform else \ 21 'b1981c189f40c3ae42b965277ad1bc3449d26d2a' # Windows 22 23 def 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 30 if 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. 39 copy_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' 42 if os.path.isdir(os.path.dirname(copy_path)): 43 shutil.copy(dst, copy_path) 44
