Mercurial > libervia-backend
annotate distribute_setup.py @ 1123:e89bd3a26c86
installation: setup.py update:
- twisted plugin installation
- author is now « association Salut à Toi »
- author_email is now association's main contact address
- changed url from http://www.salut-a-toi.org to http://salut-a-toi.org
author | Goffi <goffi@goffi.org> |
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date | Sun, 24 Aug 2014 18:44:18 +0200 |
parents | efd92a645220 |
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rev | line source |
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231 | 1 #!python |
2 """Bootstrap distribute installation | |
3 | |
4 If you want to use setuptools in your package's setup.py, just include this | |
5 file in the same directory with it, and add this to the top of your setup.py:: | |
6 | |
7 from distribute_setup import use_setuptools | |
8 use_setuptools() | |
9 | |
10 If you want to require a specific version of setuptools, set a download | |
11 mirror, or use an alternate download directory, you can do so by supplying | |
12 the appropriate options to ``use_setuptools()``. | |
13 | |
14 This file can also be run as a script to install or upgrade setuptools. | |
15 """ | |
16 import os | |
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17 import shutil |
231 | 18 import sys |
19 import time | |
20 import fnmatch | |
21 import tempfile | |
22 import tarfile | |
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23 import optparse |
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24 |
231 | 25 from distutils import log |
26 | |
27 try: | |
28 from site import USER_SITE | |
29 except ImportError: | |
30 USER_SITE = None | |
31 | |
32 try: | |
33 import subprocess | |
34 | |
35 def _python_cmd(*args): | |
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36 args = (sys.executable,) + args |
231 | 37 return subprocess.call(args) == 0 |
38 | |
39 except ImportError: | |
40 # will be used for python 2.3 | |
41 def _python_cmd(*args): | |
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42 args = (sys.executable,) + args |
231 | 43 # quoting arguments if windows |
44 if sys.platform == 'win32': | |
45 def quote(arg): | |
46 if ' ' in arg: | |
47 return '"%s"' % arg | |
48 return arg | |
49 args = [quote(arg) for arg in args] | |
50 return os.spawnl(os.P_WAIT, sys.executable, *args) == 0 | |
51 | |
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52 DEFAULT_VERSION = "0.6.49" |
231 | 53 DEFAULT_URL = "http://pypi.python.org/packages/source/d/distribute/" |
54 SETUPTOOLS_FAKED_VERSION = "0.6c11" | |
55 | |
56 SETUPTOOLS_PKG_INFO = """\ | |
57 Metadata-Version: 1.0 | |
58 Name: setuptools | |
59 Version: %s | |
60 Summary: xxxx | |
61 Home-page: xxx | |
62 Author: xxx | |
63 Author-email: xxx | |
64 License: xxx | |
65 Description: xxx | |
66 """ % SETUPTOOLS_FAKED_VERSION | |
67 | |
68 | |
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69 def _install(tarball, install_args=()): |
231 | 70 # extracting the tarball |
71 tmpdir = tempfile.mkdtemp() | |
72 log.warn('Extracting in %s', tmpdir) | |
73 old_wd = os.getcwd() | |
74 try: | |
75 os.chdir(tmpdir) | |
76 tar = tarfile.open(tarball) | |
77 _extractall(tar) | |
78 tar.close() | |
79 | |
80 # going in the directory | |
81 subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0]) | |
82 os.chdir(subdir) | |
83 log.warn('Now working in %s', subdir) | |
84 | |
85 # installing | |
86 log.warn('Installing Distribute') | |
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87 if not _python_cmd('setup.py', 'install', *install_args): |
231 | 88 log.warn('Something went wrong during the installation.') |
89 log.warn('See the error message above.') | |
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90 # exitcode will be 2 |
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91 return 2 |
231 | 92 finally: |
93 os.chdir(old_wd) | |
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94 shutil.rmtree(tmpdir) |
231 | 95 |
96 | |
97 def _build_egg(egg, tarball, to_dir): | |
98 # extracting the tarball | |
99 tmpdir = tempfile.mkdtemp() | |
100 log.warn('Extracting in %s', tmpdir) | |
101 old_wd = os.getcwd() | |
102 try: | |
103 os.chdir(tmpdir) | |
104 tar = tarfile.open(tarball) | |
105 _extractall(tar) | |
106 tar.close() | |
107 | |
108 # going in the directory | |
109 subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0]) | |
110 os.chdir(subdir) | |
111 log.warn('Now working in %s', subdir) | |
112 | |
113 # building an egg | |
114 log.warn('Building a Distribute egg in %s', to_dir) | |
115 _python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir) | |
116 | |
117 finally: | |
118 os.chdir(old_wd) | |
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119 shutil.rmtree(tmpdir) |
231 | 120 # returning the result |
121 log.warn(egg) | |
122 if not os.path.exists(egg): | |
123 raise IOError('Could not build the egg.') | |
124 | |
125 | |
126 def _do_download(version, download_base, to_dir, download_delay): | |
127 egg = os.path.join(to_dir, 'distribute-%s-py%d.%d.egg' | |
128 % (version, sys.version_info[0], sys.version_info[1])) | |
129 if not os.path.exists(egg): | |
130 tarball = download_setuptools(version, download_base, | |
131 to_dir, download_delay) | |
132 _build_egg(egg, tarball, to_dir) | |
133 sys.path.insert(0, egg) | |
134 import setuptools | |
135 setuptools.bootstrap_install_from = egg | |
136 | |
137 | |
138 def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL, | |
139 to_dir=os.curdir, download_delay=15, no_fake=True): | |
140 # making sure we use the absolute path | |
141 to_dir = os.path.abspath(to_dir) | |
142 was_imported = 'pkg_resources' in sys.modules or \ | |
143 'setuptools' in sys.modules | |
144 try: | |
145 try: | |
146 import pkg_resources | |
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147 |
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148 # Setuptools 0.7b and later is a suitable (and preferable) |
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149 # substitute for any Distribute version. |
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150 try: |
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151 pkg_resources.require("setuptools>=0.7b") |
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152 return |
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153 except (pkg_resources.DistributionNotFound, |
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154 pkg_resources.VersionConflict): |
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155 pass |
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156 |
231 | 157 if not hasattr(pkg_resources, '_distribute'): |
158 if not no_fake: | |
159 _fake_setuptools() | |
160 raise ImportError | |
161 except ImportError: | |
162 return _do_download(version, download_base, to_dir, download_delay) | |
163 try: | |
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164 pkg_resources.require("distribute>=" + version) |
231 | 165 return |
166 except pkg_resources.VersionConflict: | |
167 e = sys.exc_info()[1] | |
168 if was_imported: | |
169 sys.stderr.write( | |
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170 "The required version of distribute (>=%s) is not available,\n" |
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171 "and can't be installed while this script is running. Please\n" |
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172 "install a more recent version first, using\n" |
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173 "'easy_install -U distribute'." |
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174 "\n\n(Currently using %r)\n" % (version, e.args[0])) |
231 | 175 sys.exit(2) |
176 else: | |
177 del pkg_resources, sys.modules['pkg_resources'] # reload ok | |
178 return _do_download(version, download_base, to_dir, | |
179 download_delay) | |
180 except pkg_resources.DistributionNotFound: | |
181 return _do_download(version, download_base, to_dir, | |
182 download_delay) | |
183 finally: | |
184 if not no_fake: | |
185 _create_fake_setuptools_pkg_info(to_dir) | |
186 | |
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187 |
231 | 188 def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL, |
189 to_dir=os.curdir, delay=15): | |
190 """Download distribute from a specified location and return its filename | |
191 | |
192 `version` should be a valid distribute version number that is available | |
193 as an egg for download under the `download_base` URL (which should end | |
194 with a '/'). `to_dir` is the directory where the egg will be downloaded. | |
195 `delay` is the number of seconds to pause before an actual download | |
196 attempt. | |
197 """ | |
198 # making sure we use the absolute path | |
199 to_dir = os.path.abspath(to_dir) | |
200 try: | |
201 from urllib.request import urlopen | |
202 except ImportError: | |
203 from urllib2 import urlopen | |
204 tgz_name = "distribute-%s.tar.gz" % version | |
205 url = download_base + tgz_name | |
206 saveto = os.path.join(to_dir, tgz_name) | |
207 src = dst = None | |
208 if not os.path.exists(saveto): # Avoid repeated downloads | |
209 try: | |
210 log.warn("Downloading %s", url) | |
211 src = urlopen(url) | |
212 # Read/write all in one block, so we don't create a corrupt file | |
213 # if the download is interrupted. | |
214 data = src.read() | |
215 dst = open(saveto, "wb") | |
216 dst.write(data) | |
217 finally: | |
218 if src: | |
219 src.close() | |
220 if dst: | |
221 dst.close() | |
222 return os.path.realpath(saveto) | |
223 | |
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224 |
231 | 225 def _no_sandbox(function): |
226 def __no_sandbox(*args, **kw): | |
227 try: | |
228 from setuptools.sandbox import DirectorySandbox | |
229 if not hasattr(DirectorySandbox, '_old'): | |
230 def violation(*args): | |
231 pass | |
232 DirectorySandbox._old = DirectorySandbox._violation | |
233 DirectorySandbox._violation = violation | |
234 patched = True | |
235 else: | |
236 patched = False | |
237 except ImportError: | |
238 patched = False | |
239 | |
240 try: | |
241 return function(*args, **kw) | |
242 finally: | |
243 if patched: | |
244 DirectorySandbox._violation = DirectorySandbox._old | |
245 del DirectorySandbox._old | |
246 | |
247 return __no_sandbox | |
248 | |
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249 |
231 | 250 def _patch_file(path, content): |
251 """Will backup the file then patch it""" | |
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252 f = open(path) |
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253 existing_content = f.read() |
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254 f.close() |
231 | 255 if existing_content == content: |
256 # already patched | |
257 log.warn('Already patched.') | |
258 return False | |
259 log.warn('Patching...') | |
260 _rename_path(path) | |
261 f = open(path, 'w') | |
262 try: | |
263 f.write(content) | |
264 finally: | |
265 f.close() | |
266 return True | |
267 | |
268 _patch_file = _no_sandbox(_patch_file) | |
269 | |
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270 |
231 | 271 def _same_content(path, content): |
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272 f = open(path) |
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273 existing_content = f.read() |
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274 f.close() |
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275 return existing_content == content |
231 | 276 |
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277 |
231 | 278 def _rename_path(path): |
279 new_name = path + '.OLD.%s' % time.time() | |
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280 log.warn('Renaming %s to %s', path, new_name) |
231 | 281 os.rename(path, new_name) |
282 return new_name | |
283 | |
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284 |
231 | 285 def _remove_flat_installation(placeholder): |
286 if not os.path.isdir(placeholder): | |
287 log.warn('Unkown installation at %s', placeholder) | |
288 return False | |
289 found = False | |
290 for file in os.listdir(placeholder): | |
291 if fnmatch.fnmatch(file, 'setuptools*.egg-info'): | |
292 found = True | |
293 break | |
294 if not found: | |
295 log.warn('Could not locate setuptools*.egg-info') | |
296 return | |
297 | |
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298 log.warn('Moving elements out of the way...') |
231 | 299 pkg_info = os.path.join(placeholder, file) |
300 if os.path.isdir(pkg_info): | |
301 patched = _patch_egg_dir(pkg_info) | |
302 else: | |
303 patched = _patch_file(pkg_info, SETUPTOOLS_PKG_INFO) | |
304 | |
305 if not patched: | |
306 log.warn('%s already patched.', pkg_info) | |
307 return False | |
308 # now let's move the files out of the way | |
309 for element in ('setuptools', 'pkg_resources.py', 'site.py'): | |
310 element = os.path.join(placeholder, element) | |
311 if os.path.exists(element): | |
312 _rename_path(element) | |
313 else: | |
314 log.warn('Could not find the %s element of the ' | |
315 'Setuptools distribution', element) | |
316 return True | |
317 | |
318 _remove_flat_installation = _no_sandbox(_remove_flat_installation) | |
319 | |
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320 |
231 | 321 def _after_install(dist): |
322 log.warn('After install bootstrap.') | |
323 placeholder = dist.get_command_obj('install').install_purelib | |
324 _create_fake_setuptools_pkg_info(placeholder) | |
325 | |
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326 |
231 | 327 def _create_fake_setuptools_pkg_info(placeholder): |
328 if not placeholder or not os.path.exists(placeholder): | |
329 log.warn('Could not find the install location') | |
330 return | |
331 pyver = '%s.%s' % (sys.version_info[0], sys.version_info[1]) | |
332 setuptools_file = 'setuptools-%s-py%s.egg-info' % \ | |
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333 (SETUPTOOLS_FAKED_VERSION, pyver) |
231 | 334 pkg_info = os.path.join(placeholder, setuptools_file) |
335 if os.path.exists(pkg_info): | |
336 log.warn('%s already exists', pkg_info) | |
337 return | |
338 | |
339 log.warn('Creating %s', pkg_info) | |
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340 try: |
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341 f = open(pkg_info, 'w') |
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342 except EnvironmentError: |
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343 log.warn("Don't have permissions to write %s, skipping", pkg_info) |
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344 return |
231 | 345 try: |
346 f.write(SETUPTOOLS_PKG_INFO) | |
347 finally: | |
348 f.close() | |
349 | |
350 pth_file = os.path.join(placeholder, 'setuptools.pth') | |
351 log.warn('Creating %s', pth_file) | |
352 f = open(pth_file, 'w') | |
353 try: | |
354 f.write(os.path.join(os.curdir, setuptools_file)) | |
355 finally: | |
356 f.close() | |
357 | |
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358 _create_fake_setuptools_pkg_info = _no_sandbox( |
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359 _create_fake_setuptools_pkg_info |
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360 ) |
231 | 361 |
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362 |
231 | 363 def _patch_egg_dir(path): |
364 # let's check if it's already patched | |
365 pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO') | |
366 if os.path.exists(pkg_info): | |
367 if _same_content(pkg_info, SETUPTOOLS_PKG_INFO): | |
368 log.warn('%s already patched.', pkg_info) | |
369 return False | |
370 _rename_path(path) | |
371 os.mkdir(path) | |
372 os.mkdir(os.path.join(path, 'EGG-INFO')) | |
373 pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO') | |
374 f = open(pkg_info, 'w') | |
375 try: | |
376 f.write(SETUPTOOLS_PKG_INFO) | |
377 finally: | |
378 f.close() | |
379 return True | |
380 | |
381 _patch_egg_dir = _no_sandbox(_patch_egg_dir) | |
382 | |
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383 |
231 | 384 def _before_install(): |
385 log.warn('Before install bootstrap.') | |
386 _fake_setuptools() | |
387 | |
388 | |
389 def _under_prefix(location): | |
390 if 'install' not in sys.argv: | |
391 return True | |
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392 args = sys.argv[sys.argv.index('install') + 1:] |
231 | 393 for index, arg in enumerate(args): |
394 for option in ('--root', '--prefix'): | |
395 if arg.startswith('%s=' % option): | |
396 top_dir = arg.split('root=')[-1] | |
397 return location.startswith(top_dir) | |
398 elif arg == option: | |
399 if len(args) > index: | |
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400 top_dir = args[index + 1] |
231 | 401 return location.startswith(top_dir) |
402 if arg == '--user' and USER_SITE is not None: | |
403 return location.startswith(USER_SITE) | |
404 return True | |
405 | |
406 | |
407 def _fake_setuptools(): | |
408 log.warn('Scanning installed packages') | |
409 try: | |
410 import pkg_resources | |
411 except ImportError: | |
412 # we're cool | |
413 log.warn('Setuptools or Distribute does not seem to be installed.') | |
414 return | |
415 ws = pkg_resources.working_set | |
416 try: | |
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417 setuptools_dist = ws.find( |
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418 pkg_resources.Requirement.parse('setuptools', replacement=False) |
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419 ) |
231 | 420 except TypeError: |
421 # old distribute API | |
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422 setuptools_dist = ws.find( |
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423 pkg_resources.Requirement.parse('setuptools') |
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424 ) |
231 | 425 |
426 if setuptools_dist is None: | |
427 log.warn('No setuptools distribution found') | |
428 return | |
429 # detecting if it was already faked | |
430 setuptools_location = setuptools_dist.location | |
431 log.warn('Setuptools installation detected at %s', setuptools_location) | |
432 | |
433 # if --root or --preix was provided, and if | |
434 # setuptools is not located in them, we don't patch it | |
435 if not _under_prefix(setuptools_location): | |
436 log.warn('Not patching, --root or --prefix is installing Distribute' | |
437 ' in another location') | |
438 return | |
439 | |
440 # let's see if its an egg | |
441 if not setuptools_location.endswith('.egg'): | |
442 log.warn('Non-egg installation') | |
443 res = _remove_flat_installation(setuptools_location) | |
444 if not res: | |
445 return | |
446 else: | |
447 log.warn('Egg installation') | |
448 pkg_info = os.path.join(setuptools_location, 'EGG-INFO', 'PKG-INFO') | |
449 if (os.path.exists(pkg_info) and | |
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450 _same_content(pkg_info, SETUPTOOLS_PKG_INFO)): |
231 | 451 log.warn('Already patched.') |
452 return | |
453 log.warn('Patching...') | |
454 # let's create a fake egg replacing setuptools one | |
455 res = _patch_egg_dir(setuptools_location) | |
456 if not res: | |
457 return | |
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458 log.warn('Patching complete.') |
231 | 459 _relaunch() |
460 | |
461 | |
462 def _relaunch(): | |
463 log.warn('Relaunching...') | |
464 # we have to relaunch the process | |
465 # pip marker to avoid a relaunch bug | |
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466 _cmd1 = ['-c', 'install', '--single-version-externally-managed'] |
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467 _cmd2 = ['-c', 'install', '--record'] |
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468 if sys.argv[:3] == _cmd1 or sys.argv[:3] == _cmd2: |
231 | 469 sys.argv[0] = 'setup.py' |
470 args = [sys.executable] + sys.argv | |
471 sys.exit(subprocess.call(args)) | |
472 | |
473 | |
474 def _extractall(self, path=".", members=None): | |
475 """Extract all members from the archive to the current working | |
476 directory and set owner, modification time and permissions on | |
477 directories afterwards. `path' specifies a different directory | |
478 to extract to. `members' is optional and must be a subset of the | |
479 list returned by getmembers(). | |
480 """ | |
481 import copy | |
482 import operator | |
483 from tarfile import ExtractError | |
484 directories = [] | |
485 | |
486 if members is None: | |
487 members = self | |
488 | |
489 for tarinfo in members: | |
490 if tarinfo.isdir(): | |
491 # Extract directories with a safe mode. | |
492 directories.append(tarinfo) | |
493 tarinfo = copy.copy(tarinfo) | |
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494 tarinfo.mode = 448 # decimal for oct 0700 |
231 | 495 self.extract(tarinfo, path) |
496 | |
497 # Reverse sort directories. | |
498 if sys.version_info < (2, 4): | |
499 def sorter(dir1, dir2): | |
500 return cmp(dir1.name, dir2.name) | |
501 directories.sort(sorter) | |
502 directories.reverse() | |
503 else: | |
504 directories.sort(key=operator.attrgetter('name'), reverse=True) | |
505 | |
506 # Set correct owner, mtime and filemode on directories. | |
507 for tarinfo in directories: | |
508 dirpath = os.path.join(path, tarinfo.name) | |
509 try: | |
510 self.chown(tarinfo, dirpath) | |
511 self.utime(tarinfo, dirpath) | |
512 self.chmod(tarinfo, dirpath) | |
513 except ExtractError: | |
514 e = sys.exc_info()[1] | |
515 if self.errorlevel > 1: | |
516 raise | |
517 else: | |
518 self._dbg(1, "tarfile: %s" % e) | |
519 | |
520 | |
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521 def _build_install_args(options): |
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522 """ |
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523 Build the arguments to 'python setup.py install' on the distribute package |
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524 """ |
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525 install_args = [] |
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526 if options.user_install: |
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527 if sys.version_info < (2, 6): |
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528 log.warn("--user requires Python 2.6 or later") |
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529 raise SystemExit(1) |
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530 install_args.append('--user') |
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531 return install_args |
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532 |
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533 def _parse_args(): |
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534 """ |
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535 Parse the command line for options |
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536 """ |
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537 parser = optparse.OptionParser() |
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538 parser.add_option( |
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539 '--user', dest='user_install', action='store_true', default=False, |
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540 help='install in user site package (requires Python 2.6 or later)') |
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541 parser.add_option( |
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542 '--download-base', dest='download_base', metavar="URL", |
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543 default=DEFAULT_URL, |
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544 help='alternative URL from where to download the distribute package') |
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545 options, args = parser.parse_args() |
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546 # positional arguments are ignored |
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547 return options |
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548 |
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549 def main(version=DEFAULT_VERSION): |
231 | 550 """Install or upgrade setuptools and EasyInstall""" |
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551 options = _parse_args() |
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552 tarball = download_setuptools(download_base=options.download_base) |
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553 return _install(tarball, _build_install_args(options)) |
231 | 554 |
555 if __name__ == '__main__': | |
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556 sys.exit(main()) |