diff options
| -rwxr-xr-x | bin/fetch-gn | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/bin/fetch-gn b/bin/fetch-gn index 16e287513e..d5de7e4fd6 100755 --- a/bin/fetch-gn +++ b/bin/fetch-gn @@ -5,25 +5,37 @@ # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. +import hashlib import os import shutil import stat import sys import urllib2 -def gn_path(): - if 'linux' in sys.platform: - return 'buildtools/linux64/gn' - if 'darwin' in sys.platform: - return 'buildtools/mac/gn' - return 'buildtools/win/gn.exe' +os.chdir(os.path.join(os.path.dirname(__file__), os.pardir)) -sha1 = open(gn_path() + '.sha1').read() +gn_path = 'buildtools/linux64/gn' if 'linux' in sys.platform else \ + 'buildtools/mac/gn' if 'darwin' in sys.platform else \ + 'buildtools/win/gn.exe' -with open(gn_path(), 'wb') as f: +sha1 = open(gn_path + '.sha1').read().strip() + +def sha1_of_file(path): + h = hashlib.sha1() + if os.path.isfile(path): + with open(path, 'rb') as f: + h.update(f.read()) + return h.hexdigest() + +if sha1_of_file(gn_path) != sha1: + with open(gn_path, 'wb') as f: f.write(urllib2.urlopen('https://chromium-gn.storage-download.googleapis.com/' + sha1).read()) -os.chmod(gn_path(), stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR | + os.chmod(gn_path, stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR | stat.S_IRGRP | stat.S_IXGRP | stat.S_IROTH | stat.S_IXOTH ) -shutil.copy(gn_path(), 'bin'); + +gn_copy_path = os.path.join('bin', os.path.basename(gn_path)) +if sha1_of_file(gn_copy_path) != sha1: + shutil.copy(gn_path, gn_copy_path) + |