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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 | |
6 import argparse | |
7 import contextlib | |
8 import glob | |
9 import logging | |
10 import os | |
11 import shutil | |
12 import subprocess | |
13 import sys | |
14 import tempfile | |
15 | |
16 from util import STORAGE_URL, OBJECT_URL, LOCAL_STORAGE_PATH, LOCAL_OBJECT_URL | |
17 from util import read_deps, merge_deps, print_deps, platform_tag | |
18 | |
19 LOGGER = logging.getLogger(__name__) | |
20 | |
21 # /path/to/infra | |
22 ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) | |
23 | |
24 PYTHON_BAT_WIN = '@%~dp0\\..\\Scripts\\python.exe %*' | |
25 | |
26 | |
27 class NoWheelException(Exception): | |
28 def __init__(self, name, version, build, source_sha): | |
29 super(NoWheelException, self).__init__( | |
30 'No matching wheel found for (%s==%s (build %s_%s))' % | |
31 (name, version, build, source_sha)) | |
32 | |
33 | |
34 def check_pydistutils(): | |
35 if os.path.exists(os.path.expanduser('~/.pydistutils.cfg')): | |
36 print >> sys.stderr, '\n'.join([ | |
37 '', | |
38 '', | |
39 '=========== ERROR ===========', | |
40 'You have a ~/.pydistutils.cfg file, which interferes with the ', | |
41 'infra virtualenv environment. Please move it to the side and bootstrap ', | |
42 'again. Once infra has bootstrapped, you may move it back.', | |
43 '', | |
44 'Upstream bug: https://github.com/pypa/virtualenv/issues/88/', | |
45 '' | |
46 ]) | |
47 sys.exit(1) | |
48 | |
49 | |
50 def ls(prefix): | |
51 from pip._vendor import requests # pylint: disable=E0611 | |
52 data = requests.get(STORAGE_URL, params=dict( | |
53 prefix=prefix, | |
54 fields='items(name,md5Hash)' | |
55 )).json() | |
56 entries = data.get('items', []) | |
57 for entry in entries: | |
58 entry['md5Hash'] = entry['md5Hash'].decode('base64').encode('hex') | |
59 entry['local'] = False | |
60 # Also look in the local cache | |
61 entries.extend([ | |
62 {'name': fname, 'md5Hash': None, 'local': True} | |
63 for fname in glob.glob(os.path.join(LOCAL_STORAGE_PATH, | |
64 prefix.split('/')[-1] + '*'))]) | |
65 return entries | |
66 | |
67 | |
68 def sha_for(deps_entry): | |
69 if 'rev' in deps_entry: | |
70 return deps_entry['rev'] | |
71 else: | |
72 return deps_entry['gs'].split('.')[0] | |
73 | |
74 | |
75 def get_links(deps): | |
76 import pip.wheel # pylint: disable=E0611 | |
77 plat_tag = platform_tag() | |
78 | |
79 links = [] | |
80 | |
81 for name, dep in deps.iteritems(): | |
82 version, source_sha = dep['version'] , sha_for(dep) | |
83 prefix = 'wheels/{}-{}-{}_{}'.format(name, version, dep['build'], | |
84 source_sha) | |
85 generic_link = None | |
86 binary_link = None | |
87 local_link = None | |
88 | |
89 for entry in ls(prefix): | |
90 fname = entry['name'].split('/')[-1] | |
91 md5hash = entry['md5Hash'] | |
92 wheel_info = pip.wheel.Wheel.wheel_file_re.match(fname) | |
93 if not wheel_info: | |
94 LOGGER.warn('Skipping invalid wheel: %r', fname) | |
95 continue | |
96 | |
97 if pip.wheel.Wheel(fname).supported(): | |
98 if entry['local']: | |
99 link = LOCAL_OBJECT_URL.format(entry['name']) | |
100 local_link = link | |
101 continue | |
102 else: | |
103 link = OBJECT_URL.format(entry['name'], md5hash) | |
104 if fname.endswith('none-any.whl'): | |
105 if generic_link: | |
106 LOGGER.error( | |
107 'Found more than one generic matching wheel for %r: %r', | |
108 prefix, dep) | |
109 continue | |
110 generic_link = link | |
111 elif plat_tag in fname: | |
112 if binary_link: | |
113 LOGGER.error( | |
114 'Found more than one binary matching wheel for %r: %r', | |
115 prefix, dep) | |
116 continue | |
117 binary_link = link | |
118 | |
119 if not binary_link and not generic_link and not local_link: | |
120 raise NoWheelException(name, version, dep['build'], source_sha) | |
121 | |
122 links.append(local_link or binary_link or generic_link) | |
123 | |
124 return links | |
125 | |
126 | |
127 @contextlib.contextmanager | |
128 def html_index(links): | |
129 tf = tempfile.mktemp('.html') | |
130 try: | |
131 with open(tf, 'w') as f: | |
132 print >> f, '<html><body>' | |
133 for link in links: | |
134 print >> f, '<a href="%s">wat</a>' % link | |
135 print >> f, '</body></html>' | |
136 yield tf | |
137 finally: | |
138 os.unlink(tf) | |
139 | |
140 | |
141 def install(deps): | |
142 bin_dir = 'Scripts' if sys.platform.startswith('win') else 'bin' | |
143 pip = os.path.join(sys.prefix, bin_dir, 'pip') | |
144 | |
145 links = get_links(deps) | |
146 with html_index(links) as ipath: | |
147 requirements = [] | |
148 # TODO(iannucci): Do this as a requirements.txt | |
149 for name, deps_entry in deps.iteritems(): | |
150 if not deps_entry.get('implicit'): | |
151 requirements.append('%s==%s' % (name, deps_entry['version'])) | |
152 subprocess.check_call( | |
153 [pip, 'install', '--no-index', '--download-cache', | |
154 os.path.join(ROOT, '.wheelcache'), '-f', ipath] + requirements) | |
155 | |
156 | |
157 def activate_env(env, deps, quiet=False): | |
158 if hasattr(sys, 'real_prefix'): | |
159 LOGGER.error('Already activated environment!') | |
160 return | |
161 | |
162 if not quiet: | |
163 print 'Activating environment: %r' % env | |
164 assert isinstance(deps, dict) | |
165 | |
166 manifest_path = os.path.join(env, 'manifest.pyl') | |
167 cur_deps = read_deps(manifest_path) | |
168 if cur_deps != deps: | |
169 if not quiet: | |
170 print ' Removing old environment: %r' % cur_deps | |
171 shutil.rmtree(env, ignore_errors=True) | |
172 cur_deps = None | |
173 | |
174 if cur_deps is None: | |
175 check_pydistutils() | |
176 | |
177 if not quiet: | |
178 print ' Building new environment' | |
179 # Add in bundled virtualenv lib | |
180 sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'virtualenv')) | |
181 import virtualenv # pylint: disable=F0401 | |
182 virtualenv.create_environment( | |
183 env, search_dirs=virtualenv.file_search_dirs()) | |
184 | |
185 if not quiet: | |
186 print ' Activating environment' | |
187 # Ensure hermeticity during activation. | |
188 os.environ.pop('PYTHONPATH', None) | |
189 bin_dir = 'Scripts' if sys.platform.startswith('win') else 'bin' | |
190 activate_this = os.path.join(env, bin_dir, 'activate_this.py') | |
191 execfile(activate_this, dict(__file__=activate_this)) | |
192 | |
193 if cur_deps is None: | |
194 if not quiet: | |
195 print ' Installing deps' | |
196 print_deps(deps, indent=2, with_implicit=False) | |
197 install(deps) | |
198 virtualenv.make_environment_relocatable(env) | |
199 with open(manifest_path, 'wb') as f: | |
200 f.write(repr(deps) + '\n') | |
201 | |
202 # Create bin\python.bat on Windows to unify path where Python is found. | |
203 if sys.platform.startswith('win'): | |
204 bin_path = os.path.join(env, 'bin') | |
205 if not os.path.isdir(bin_path): | |
206 os.makedirs(bin_path) | |
207 python_bat_path = os.path.join(bin_path, 'python.bat') | |
208 if not os.path.isfile(python_bat_path): | |
209 with open(python_bat_path, 'w') as python_bat_file: | |
210 python_bat_file.write(PYTHON_BAT_WIN) | |
211 | |
212 if not quiet: | |
213 print 'Done creating environment' | |
214 | |
215 | |
216 def main(args): | |
217 parser = argparse.ArgumentParser() | |
218 parser.add_argument('--deps-file', '--deps_file', action='append', | |
219 help='Path to deps.pyl file (may be used multiple times)') | |
220 parser.add_argument('-q', '--quiet', action='store_true', default=False, | |
221 help='Supress all output') | |
222 parser.add_argument('env_path', | |
223 help='Path to place environment (default: %(default)s)', | |
224 default='ENV') | |
225 opts = parser.parse_args(args) | |
226 | |
227 deps = merge_deps(opts.deps_file) | |
228 activate_env(opts.env_path, deps, opts.quiet) | |
229 | |
230 | |
231 if __name__ == '__main__': | |
232 logging.basicConfig() | |
233 LOGGER.setLevel(logging.DEBUG) | |
234 sys.exit(main(sys.argv[1:])) | |
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