1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
#!/usr/bin/env python
#
# Copyright (c) 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Gets a Chromium archived build, and unpacks it
into a target directory.
Use -r option to specify the revison number
Use -t option to specify the directory to unzip the build into.
Usage:
$ /path/to/get_chromium_build.py -r <revision> -t <target>
"""
import logging
import optparse
import os
import platform
import shutil
import subprocess
import sys
import time
import urllib
import urllib2
import zipfile
# Example chromium build location:
# gs://chromium-browser-snapshots/Linux_x64/228977/chrome-linux.zip
CHROMIUM_URL_FMT = ('http://commondatastorage.googleapis.com/'
'chromium-browser-snapshots/%s/%s/%s')
class BuildUpdater(object):
_PLATFORM_PATHS_MAP = {
'Linux': { 'zipfiles': ['chrome-linux.zip'],
'folder': 'chrome_linux',
'archive_path': 'Linux_x64'},
'Darwin': {'zipfiles': ['chrome-mac.zip'],
'folder': 'chrome_mac',
'archive_path': 'Mac'},
'Windows': {'zipfiles': ['chrome-win32.zip',
'chrome-win32-syms.zip'],
'folder': 'chrome_win',
'archive_path': 'Win'}}
def __init__(self, options):
platform_data = BuildUpdater._PLATFORM_PATHS_MAP[platform.system()]
self._zipfiles = platform_data['zipfiles']
self._folder = platform_data['folder']
self._archive_path = platform_data['archive_path']
self._revision = int(options.revision)
self._target_dir = options.target_dir
self._download_dir = os.path.join(self._target_dir, 'downloads')
def _GetBuildUrl(self, revision, filename):
return CHROMIUM_URL_FMT % (self._archive_path, revision, filename)
def _FindBuildRevision(self, revision, filename):
MAX_REVISIONS_PER_BUILD = 100
for revision_guess in xrange(revision, revision + MAX_REVISIONS_PER_BUILD):
if self._DoesBuildExist(revision_guess, filename):
return revision_guess
else:
time.sleep(.1)
return None
def _DoesBuildExist(self, revision_guess, filename):
url = self._GetBuildUrl(revision_guess, filename)
r = urllib2.Request(url)
r.get_method = lambda: 'HEAD'
try:
urllib2.urlopen(r)
return True
except urllib2.HTTPError, err:
if err.code == 404:
return False
def _DownloadBuild(self):
if not os.path.exists(self._download_dir):
os.makedirs(self._download_dir)
for zipfile in self._zipfiles:
build_revision = self._FindBuildRevision(self._revision, zipfile)
if not build_revision:
logging.critical('Failed to find %s build for r%s\n',
self._archive_path,
self._revision)
sys.exit(1)
url = self._GetBuildUrl(build_revision, zipfile)
logging.info('Downloading %s', url)
r = urllib2.urlopen(url)
with file(os.path.join(self._download_dir, zipfile), 'wb') as f:
f.write(r.read())
def _UnzipFile(self, dl_file, dest_dir):
if not zipfile.is_zipfile(dl_file):
return False
logging.info('Unzipping %s', dl_file)
with zipfile.ZipFile(dl_file, 'r') as z:
for content in z.namelist():
dest = os.path.join(dest_dir, content[content.find('/')+1:])
# Create dest parent dir if it does not exist.
if not os.path.isdir(os.path.dirname(dest)):
logging.info('Making %s', dest)
os.makedirs(os.path.dirname(dest))
# If dest is just a dir listing, do nothing.
if not os.path.basename(dest):
continue
with z.open(content) as unzipped_content:
logging.info('Extracting %s to %s (%s)', content, dest, dl_file)
with file(dest, 'wb') as dest_file:
dest_file.write(unzipped_content.read())
permissions = z.getinfo(content).external_attr >> 16
if permissions:
os.chmod(dest, permissions)
return True
def _ClearDir(self, dir):
"""Clears all files in |dir| except for hidden files and folders."""
for root, dirs, files in os.walk(dir):
# Skip hidden files and folders (like .svn and .git).
files = [f for f in files if f[0] != '.']
dirs[:] = [d for d in dirs if d[0] != '.']
for f in files:
os.remove(os.path.join(root, f))
def _ExtractBuild(self):
dest_dir = os.path.join(self._target_dir, self._folder)
self._ClearDir(dest_dir)
for root, _, dl_files in os.walk(os.path.join(self._download_dir)):
for dl_file in dl_files:
dl_file = os.path.join(root, dl_file)
if not self._UnzipFile(dl_file, dest_dir):
logging.info('Copying %s to %s', dl_file, dest_dir)
shutil.copy(dl_file, dest_dir)
shutil.rmtree(self._download_dir)
def DownloadAndUpdateBuild(self):
self._DownloadBuild()
self._ExtractBuild()
def ParseOptions(argv):
parser = optparse.OptionParser()
usage = 'usage: %prog <options>'
parser.set_usage(usage)
parser.add_option('-r', dest='revision',
help='Revision to download.')
parser.add_option('-t', dest='target_dir',
help='Target directory for unzipped Chromium.')
(options, _) = parser.parse_args(argv)
if not options.revision:
logging.critical('Must specify -r.\n')
sys.exit(1)
if not options.target_dir:
logging.critical('Must specify -t.\n')
sys.exit(1)
return options
def main(argv):
logging.getLogger().setLevel(logging.DEBUG)
options = ParseOptions(argv)
b = BuildUpdater(options)
b.DownloadAndUpdateBuild()
logging.info('Successfully got archived Chromium build.')
if __name__ == '__main__':
sys.exit(main(sys.argv))
|
