Don't preload rarely seen large images
[chromium-blink-merge.git] / third_party / binutils / download.py
blob6a760dfd068c764cb52a71722669d32cca4e4c78
1 #!/usr/bin/env python
2 # Copyright 2014 The Chromium Authors. All rights reserved.
3 # Use of this source code is governed by a BSD-style license that can be
4 # found in the LICENSE file.
5 # vim: set ts=2 sw=2 et sts=2 ai:
7 """Minimal tool to download binutils from Google storage.
9 TODO(mithro): Replace with generic download_and_extract tool.
10 """
12 import os
13 import platform
14 import re
15 import shutil
16 import subprocess
17 import sys
20 BINUTILS_DIR = os.path.abspath(os.path.dirname(__file__))
21 BINUTILS_FILE = 'binutils.tar.bz2'
22 BINUTILS_TOOLS = ['bin/ld.gold', 'bin/objcopy', 'bin/objdump']
23 BINUTILS_OUT = 'Release'
25 DETECT_HOST_ARCH = os.path.abspath(os.path.join(
26 BINUTILS_DIR, '../../build/detect_host_arch.py'))
29 def ReadFile(filename):
30 with file(filename, 'r') as f:
31 return f.read().strip()
34 def WriteFile(filename, content):
35 assert not os.path.exists(filename)
36 with file(filename, 'w') as f:
37 f.write(content)
38 f.write('\n')
41 def GetArch():
42 gyp_host_arch = re.search(
43 'host_arch=(\S*)', os.environ.get('GYP_DEFINES', ''))
44 if gyp_host_arch:
45 arch = gyp_host_arch.group(1)
46 # This matches detect_host_arch.py.
47 if arch == 'x86_64':
48 return 'x64'
49 return arch
51 return subprocess.check_output(['python', DETECT_HOST_ARCH]).strip()
54 def FetchAndExtract(arch):
55 archdir = os.path.join(BINUTILS_DIR, 'Linux_' + arch)
56 tarball = os.path.join(archdir, BINUTILS_FILE)
57 outdir = os.path.join(archdir, BINUTILS_OUT)
59 sha1file = tarball + '.sha1'
60 if not os.path.exists(sha1file):
61 print "WARNING: No binutils found for your architecture (%s)!" % arch
62 return 0
64 checksum = ReadFile(sha1file)
66 stampfile = tarball + '.stamp'
67 if os.path.exists(stampfile):
68 if (os.path.exists(tarball) and
69 os.path.exists(outdir) and
70 checksum == ReadFile(stampfile)):
71 return 0
72 else:
73 os.unlink(stampfile)
75 print "Downloading", tarball
76 subprocess.check_call([
77 'download_from_google_storage',
78 '--no_resume',
79 '--no_auth',
80 '--bucket', 'chromium-binutils',
81 '-s', sha1file])
82 assert os.path.exists(tarball)
84 if os.path.exists(outdir):
85 shutil.rmtree(outdir)
86 assert not os.path.exists(outdir)
87 os.makedirs(outdir)
88 assert os.path.exists(outdir)
90 print "Extracting", tarball
91 subprocess.check_call(['tar', 'axf', tarball], cwd=outdir)
93 for tool in BINUTILS_TOOLS:
94 assert os.path.exists(os.path.join(outdir, tool))
96 WriteFile(stampfile, checksum)
97 return 0
100 def main(args):
101 if not sys.platform.startswith('linux'):
102 return 0
104 arch = GetArch()
105 if arch == 'x64':
106 return FetchAndExtract(arch)
107 if arch == 'ia32':
108 ret = FetchAndExtract(arch)
109 if ret != 0:
110 return ret
111 # Fetch the x64 toolchain as well for official bots with 64-bit kernels.
112 return FetchAndExtract('x64')
113 print "Host architecture %s is not supported." % arch
114 return 1
117 if __name__ == '__main__':
118 sys.exit(main(sys.argv))