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Side by Side Diff: commit-queue/get_appengine.py

Issue 135363007: Delete public commit queue to avoid confusion after move to internal repo (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/tools/
Patch Set: Created 6 years, 10 months ago
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1 #!/usr/bin/env python
2 # Copyright (c) 2011 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
6 import logging
7 import optparse
8 import os
9 import re
10 import shutil
11 import sys
12 import tempfile
13 import urllib
14 import zipfile
15
16 BASE_DIR = os.path.dirname(os.path.abspath(__file__))
17
18
19 def get_gae_sdk_version(gae_path):
20 """Returns the installed GAE SDK version or None."""
21 version_path = os.path.join(gae_path, 'VERSION')
22 if os.path.isfile(version_path):
23 values = dict(
24 map(lambda x: x.strip(), l.split(':'))
25 for l in open(version_path) if ':' in l)
26 if 'release' in values:
27 return values['release'].strip('"')
28
29
30 def get_latest_gae_sdk_url(name):
31 """Returns the url to get the latest GAE SDK and its version."""
32 url = 'https://code.google.com/appengine/downloads.html'
33 logging.debug('%s', url)
34 content = urllib.urlopen(url).read()
35 regexp = (
36 r'(http\:\/\/googleappengine\.googlecode.com\/files\/'
37 + re.escape(name) + r'[0-9\.]+?\.zip)')
38 m = re.search(regexp, content)
39 url = m.group(1)
40 # Calculate the version from the url.
41 new_version = re.search(re.escape(name) + r'(.+?).zip', url).group(1)
42 # Upgrade to https
43 return url.replace('http://', 'https://'), new_version
44
45
46 def extract_zip(z, root_path):
47 """Extracts files in a zipfile but keep the executable bits."""
48 count = 0
49 for f in z.infolist():
50 perm = (f.external_attr >> 16L) & 0777
51 filepath = os.path.join(root_path, f.filename)
52 logging.debug('Extracting %s' % f.filename)
53 if f.filename.endswith('/'):
54 os.mkdir(filepath, perm)
55 else:
56 z.extract(f, root_path)
57 os.chmod(filepath, perm)
58 count += 1
59 print('Extracted %d files' % count)
60
61
62 def install_latest_gae_sdk(root_path, fetch_go, dry_run):
63 if fetch_go:
64 if sys.platform == 'darwin':
65 name = 'go_appengine_sdk_darwin_amd64-'
66 else:
67 # Add other platforms as needed.
68 name = 'go_appengine_sdk_linux_amd64-'
69 else:
70 name = 'google_appengine_'
71
72 # The zip file already contains 'google_appengine' in its path so it's a bit
73 # awkward to unzip otherwise. Hard code the path in for now.
74 gae_path = os.path.join(root_path, 'google_appengine')
75 print('Looking up path %s' % gae_path)
76 version = get_gae_sdk_version(gae_path)
77 if version:
78 print('Found installed version %s' % version)
79 else:
80 print('Didn\'t find an SDK')
81
82 url, new_version = get_latest_gae_sdk_url(name)
83 print('New version is %s' % new_version)
84 if version == new_version:
85 return 0
86
87 if os.path.isdir(gae_path):
88 print('Removing previous version')
89 if not dry_run:
90 shutil.rmtree(gae_path)
91
92 print('Fetching %s' % url)
93 if not dry_run:
94 with tempfile.NamedTemporaryFile() as f:
95 urllib.urlretrieve(url, f.name)
96 # Assuming we're extracting there. In fact, we have no idea.
97 print('Extracting into %s' % gae_path)
98 z = zipfile.ZipFile(f.name, 'r')
99 try:
100 extract_zip(z, root_path)
101 finally:
102 z.close()
103 return 0
104
105
106 def main():
107 parser = optparse.OptionParser()
108 parser.add_option('-v', '--verbose', action='store_true')
109 parser.add_option(
110 '-g', '--go', action='store_true', help='Defaults to python SDK')
111 parser.add_option(
112 '-d', '--dest', default=os.path.dirname(BASE_DIR), help='Output')
113 parser.add_option('--dry-run', action='store_true', help='Do not download')
114 options, args = parser.parse_args()
115 if args:
116 parser.error('Unsupported args: %s' % ' '.join(args))
117 logging.basicConfig(level=logging.DEBUG if options.verbose else logging.ERROR)
118 return install_latest_gae_sdk(
119 os.path.abspath(options.dest), options.go, options.dry_run)
120
121
122 if __name__ == '__main__':
123 sys.exit(main())
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