Mercurial > libervia-backend
annotate distribute_setup.py @ 831:d7f9cd8a08cd
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| author | souliane <souliane@mailoo.org> |
|---|---|
| date | Wed, 22 Jan 2014 17:10:28 +0100 |
| parents | 6a718ede8be1 |
| children | efd92a645220 |
| rev | line source |
|---|---|
| 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 | |
| 17 import sys | |
| 18 import time | |
| 19 import fnmatch | |
| 20 import tempfile | |
| 21 import tarfile | |
| 22 from distutils import log | |
| 23 | |
| 24 try: | |
| 25 from site import USER_SITE | |
| 26 except ImportError: | |
| 27 USER_SITE = None | |
| 28 | |
| 29 try: | |
| 30 import subprocess | |
| 31 | |
| 32 def _python_cmd(*args): | |
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33 args = (sys.executable, ) + args |
| 231 | 34 return subprocess.call(args) == 0 |
| 35 | |
| 36 except ImportError: | |
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37 |
| 231 | 38 # will be used for python 2.3 |
| 39 def _python_cmd(*args): | |
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40 args = (sys.executable, ) + args |
| 231 | 41 # quoting arguments if windows |
| 42 if sys.platform == 'win32': | |
| 43 def quote(arg): | |
| 44 if ' ' in arg: | |
| 45 return '"%s"' % arg | |
| 46 return arg | |
| 47 args = [quote(arg) for arg in args] | |
| 48 return os.spawnl(os.P_WAIT, sys.executable, *args) == 0 | |
| 49 | |
| 50 DEFAULT_VERSION = "0.6.14" | |
| 51 DEFAULT_URL = "http://pypi.python.org/packages/source/d/distribute/" | |
| 52 SETUPTOOLS_FAKED_VERSION = "0.6c11" | |
| 53 | |
| 54 SETUPTOOLS_PKG_INFO = """\ | |
| 55 Metadata-Version: 1.0 | |
| 56 Name: setuptools | |
| 57 Version: %s | |
| 58 Summary: xxxx | |
| 59 Home-page: xxx | |
| 60 Author: xxx | |
| 61 Author-email: xxx | |
| 62 License: xxx | |
| 63 Description: xxx | |
| 64 """ % SETUPTOOLS_FAKED_VERSION | |
| 65 | |
| 66 | |
| 67 def _install(tarball): | |
| 68 # extracting the tarball | |
| 69 tmpdir = tempfile.mkdtemp() | |
| 70 log.warn('Extracting in %s', tmpdir) | |
| 71 old_wd = os.getcwd() | |
| 72 try: | |
| 73 os.chdir(tmpdir) | |
| 74 tar = tarfile.open(tarball) | |
| 75 _extractall(tar) | |
| 76 tar.close() | |
| 77 | |
| 78 # going in the directory | |
| 79 subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0]) | |
| 80 os.chdir(subdir) | |
| 81 log.warn('Now working in %s', subdir) | |
| 82 | |
| 83 # installing | |
| 84 log.warn('Installing Distribute') | |
| 85 if not _python_cmd('setup.py', 'install'): | |
| 86 log.warn('Something went wrong during the installation.') | |
| 87 log.warn('See the error message above.') | |
| 88 finally: | |
| 89 os.chdir(old_wd) | |
| 90 | |
| 91 | |
| 92 def _build_egg(egg, tarball, to_dir): | |
| 93 # extracting the tarball | |
| 94 tmpdir = tempfile.mkdtemp() | |
| 95 log.warn('Extracting in %s', tmpdir) | |
| 96 old_wd = os.getcwd() | |
| 97 try: | |
| 98 os.chdir(tmpdir) | |
| 99 tar = tarfile.open(tarball) | |
| 100 _extractall(tar) | |
| 101 tar.close() | |
| 102 | |
| 103 # going in the directory | |
| 104 subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0]) | |
| 105 os.chdir(subdir) | |
| 106 log.warn('Now working in %s', subdir) | |
| 107 | |
| 108 # building an egg | |
| 109 log.warn('Building a Distribute egg in %s', to_dir) | |
| 110 _python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir) | |
| 111 | |
| 112 finally: | |
| 113 os.chdir(old_wd) | |
| 114 # returning the result | |
| 115 log.warn(egg) | |
| 116 if not os.path.exists(egg): | |
| 117 raise IOError('Could not build the egg.') | |
| 118 | |
| 119 | |
| 120 def _do_download(version, download_base, to_dir, download_delay): | |
| 121 egg = os.path.join(to_dir, 'distribute-%s-py%d.%d.egg' | |
| 122 % (version, sys.version_info[0], sys.version_info[1])) | |
| 123 if not os.path.exists(egg): | |
| 124 tarball = download_setuptools(version, download_base, | |
| 125 to_dir, download_delay) | |
| 126 _build_egg(egg, tarball, to_dir) | |
| 127 sys.path.insert(0, egg) | |
| 128 import setuptools | |
| 129 setuptools.bootstrap_install_from = egg | |
| 130 | |
| 131 | |
| 132 def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL, | |
| 133 to_dir=os.curdir, download_delay=15, no_fake=True): | |
| 134 # making sure we use the absolute path | |
| 135 to_dir = os.path.abspath(to_dir) | |
| 136 was_imported = 'pkg_resources' in sys.modules or \ | |
| 137 'setuptools' in sys.modules | |
| 138 try: | |
| 139 try: | |
| 140 import pkg_resources | |
| 141 if not hasattr(pkg_resources, '_distribute'): | |
| 142 if not no_fake: | |
| 143 _fake_setuptools() | |
| 144 raise ImportError | |
| 145 except ImportError: | |
| 146 return _do_download(version, download_base, to_dir, download_delay) | |
| 147 try: | |
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148 pkg_resources.require("distribute>=" + version) |
| 231 | 149 return |
| 150 except pkg_resources.VersionConflict: | |
| 151 e = sys.exc_info()[1] | |
| 152 if was_imported: | |
| 153 sys.stderr.write( | |
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154 "The required version of distribute (>=%s) is not available,\n" |
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155 "and can't be installed while this script is running. Please\n" |
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156 "install a more recent version first, using\n" |
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157 "'easy_install -U distribute'." |
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158 "\n\n(Currently using %r)\n" % (version, e.args[0])) |
| 231 | 159 sys.exit(2) |
| 160 else: | |
| 161 del pkg_resources, sys.modules['pkg_resources'] # reload ok | |
| 162 return _do_download(version, download_base, to_dir, | |
| 163 download_delay) | |
| 164 except pkg_resources.DistributionNotFound: | |
| 165 return _do_download(version, download_base, to_dir, | |
| 166 download_delay) | |
| 167 finally: | |
| 168 if not no_fake: | |
| 169 _create_fake_setuptools_pkg_info(to_dir) | |
| 170 | |
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171 |
| 231 | 172 def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL, |
| 173 to_dir=os.curdir, delay=15): | |
| 174 """Download distribute from a specified location and return its filename | |
| 175 | |
| 176 `version` should be a valid distribute version number that is available | |
| 177 as an egg for download under the `download_base` URL (which should end | |
| 178 with a '/'). `to_dir` is the directory where the egg will be downloaded. | |
| 179 `delay` is the number of seconds to pause before an actual download | |
| 180 attempt. | |
| 181 """ | |
| 182 # making sure we use the absolute path | |
| 183 to_dir = os.path.abspath(to_dir) | |
| 184 try: | |
| 185 from urllib.request import urlopen | |
| 186 except ImportError: | |
| 187 from urllib2 import urlopen | |
| 188 tgz_name = "distribute-%s.tar.gz" % version | |
| 189 url = download_base + tgz_name | |
| 190 saveto = os.path.join(to_dir, tgz_name) | |
| 191 src = dst = None | |
| 192 if not os.path.exists(saveto): # Avoid repeated downloads | |
| 193 try: | |
| 194 log.warn("Downloading %s", url) | |
| 195 src = urlopen(url) | |
| 196 # Read/write all in one block, so we don't create a corrupt file | |
| 197 # if the download is interrupted. | |
| 198 data = src.read() | |
| 199 dst = open(saveto, "wb") | |
| 200 dst.write(data) | |
| 201 finally: | |
| 202 if src: | |
| 203 src.close() | |
| 204 if dst: | |
| 205 dst.close() | |
| 206 return os.path.realpath(saveto) | |
| 207 | |
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208 |
| 231 | 209 def _no_sandbox(function): |
| 210 def __no_sandbox(*args, **kw): | |
| 211 try: | |
| 212 from setuptools.sandbox import DirectorySandbox | |
| 213 if not hasattr(DirectorySandbox, '_old'): | |
| 214 def violation(*args): | |
| 215 pass | |
| 216 DirectorySandbox._old = DirectorySandbox._violation | |
| 217 DirectorySandbox._violation = violation | |
| 218 patched = True | |
| 219 else: | |
| 220 patched = False | |
| 221 except ImportError: | |
| 222 patched = False | |
| 223 | |
| 224 try: | |
| 225 return function(*args, **kw) | |
| 226 finally: | |
| 227 if patched: | |
| 228 DirectorySandbox._violation = DirectorySandbox._old | |
| 229 del DirectorySandbox._old | |
| 230 | |
| 231 return __no_sandbox | |
| 232 | |
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233 |
| 231 | 234 def _patch_file(path, content): |
| 235 """Will backup the file then patch it""" | |
| 236 existing_content = open(path).read() | |
| 237 if existing_content == content: | |
| 238 # already patched | |
| 239 log.warn('Already patched.') | |
| 240 return False | |
| 241 log.warn('Patching...') | |
| 242 _rename_path(path) | |
| 243 f = open(path, 'w') | |
| 244 try: | |
| 245 f.write(content) | |
| 246 finally: | |
| 247 f.close() | |
| 248 return True | |
| 249 | |
| 250 _patch_file = _no_sandbox(_patch_file) | |
| 251 | |
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252 |
| 231 | 253 def _same_content(path, content): |
| 254 return open(path).read() == content | |
| 255 | |
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256 |
| 231 | 257 def _rename_path(path): |
| 258 new_name = path + '.OLD.%s' % time.time() | |
| 259 log.warn('Renaming %s into %s', path, new_name) | |
| 260 os.rename(path, new_name) | |
| 261 return new_name | |
| 262 | |
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263 |
| 231 | 264 def _remove_flat_installation(placeholder): |
| 265 if not os.path.isdir(placeholder): | |
| 266 log.warn('Unkown installation at %s', placeholder) | |
| 267 return False | |
| 268 found = False | |
| 269 for file in os.listdir(placeholder): | |
| 270 if fnmatch.fnmatch(file, 'setuptools*.egg-info'): | |
| 271 found = True | |
| 272 break | |
| 273 if not found: | |
| 274 log.warn('Could not locate setuptools*.egg-info') | |
| 275 return | |
| 276 | |
| 277 log.warn('Removing elements out of the way...') | |
| 278 pkg_info = os.path.join(placeholder, file) | |
| 279 if os.path.isdir(pkg_info): | |
| 280 patched = _patch_egg_dir(pkg_info) | |
| 281 else: | |
| 282 patched = _patch_file(pkg_info, SETUPTOOLS_PKG_INFO) | |
| 283 | |
| 284 if not patched: | |
| 285 log.warn('%s already patched.', pkg_info) | |
| 286 return False | |
| 287 # now let's move the files out of the way | |
| 288 for element in ('setuptools', 'pkg_resources.py', 'site.py'): | |
| 289 element = os.path.join(placeholder, element) | |
| 290 if os.path.exists(element): | |
| 291 _rename_path(element) | |
| 292 else: | |
| 293 log.warn('Could not find the %s element of the ' | |
| 294 'Setuptools distribution', element) | |
| 295 return True | |
| 296 | |
| 297 _remove_flat_installation = _no_sandbox(_remove_flat_installation) | |
| 298 | |
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299 |
| 231 | 300 def _after_install(dist): |
| 301 log.warn('After install bootstrap.') | |
| 302 placeholder = dist.get_command_obj('install').install_purelib | |
| 303 _create_fake_setuptools_pkg_info(placeholder) | |
| 304 | |
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305 |
| 231 | 306 def _create_fake_setuptools_pkg_info(placeholder): |
| 307 if not placeholder or not os.path.exists(placeholder): | |
| 308 log.warn('Could not find the install location') | |
| 309 return | |
| 310 pyver = '%s.%s' % (sys.version_info[0], sys.version_info[1]) | |
| 311 setuptools_file = 'setuptools-%s-py%s.egg-info' % \ | |
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312 (SETUPTOOLS_FAKED_VERSION, pyver) |
| 231 | 313 pkg_info = os.path.join(placeholder, setuptools_file) |
| 314 if os.path.exists(pkg_info): | |
| 315 log.warn('%s already exists', pkg_info) | |
| 316 return | |
| 317 | |
| 318 log.warn('Creating %s', pkg_info) | |
| 319 f = open(pkg_info, 'w') | |
| 320 try: | |
| 321 f.write(SETUPTOOLS_PKG_INFO) | |
| 322 finally: | |
| 323 f.close() | |
| 324 | |
| 325 pth_file = os.path.join(placeholder, 'setuptools.pth') | |
| 326 log.warn('Creating %s', pth_file) | |
| 327 f = open(pth_file, 'w') | |
| 328 try: | |
| 329 f.write(os.path.join(os.curdir, setuptools_file)) | |
| 330 finally: | |
| 331 f.close() | |
| 332 | |
| 333 _create_fake_setuptools_pkg_info = _no_sandbox(_create_fake_setuptools_pkg_info) | |
| 334 | |
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335 |
| 231 | 336 def _patch_egg_dir(path): |
| 337 # let's check if it's already patched | |
| 338 pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO') | |
| 339 if os.path.exists(pkg_info): | |
| 340 if _same_content(pkg_info, SETUPTOOLS_PKG_INFO): | |
| 341 log.warn('%s already patched.', pkg_info) | |
| 342 return False | |
| 343 _rename_path(path) | |
| 344 os.mkdir(path) | |
| 345 os.mkdir(os.path.join(path, 'EGG-INFO')) | |
| 346 pkg_info = os.path.join(path, 'EGG-INFO', 'PKG-INFO') | |
| 347 f = open(pkg_info, 'w') | |
| 348 try: | |
| 349 f.write(SETUPTOOLS_PKG_INFO) | |
| 350 finally: | |
| 351 f.close() | |
| 352 return True | |
| 353 | |
| 354 _patch_egg_dir = _no_sandbox(_patch_egg_dir) | |
| 355 | |
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356 |
| 231 | 357 def _before_install(): |
| 358 log.warn('Before install bootstrap.') | |
| 359 _fake_setuptools() | |
| 360 | |
| 361 | |
| 362 def _under_prefix(location): | |
| 363 if 'install' not in sys.argv: | |
| 364 return True | |
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365 args = sys.argv[sys.argv.index('install') + 1:] |
| 231 | 366 for index, arg in enumerate(args): |
| 367 for option in ('--root', '--prefix'): | |
| 368 if arg.startswith('%s=' % option): | |
| 369 top_dir = arg.split('root=')[-1] | |
| 370 return location.startswith(top_dir) | |
| 371 elif arg == option: | |
| 372 if len(args) > index: | |
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373 top_dir = args[index + 1] |
| 231 | 374 return location.startswith(top_dir) |
| 375 if arg == '--user' and USER_SITE is not None: | |
| 376 return location.startswith(USER_SITE) | |
| 377 return True | |
| 378 | |
| 379 | |
| 380 def _fake_setuptools(): | |
| 381 log.warn('Scanning installed packages') | |
| 382 try: | |
| 383 import pkg_resources | |
| 384 except ImportError: | |
| 385 # we're cool | |
| 386 log.warn('Setuptools or Distribute does not seem to be installed.') | |
| 387 return | |
| 388 ws = pkg_resources.working_set | |
| 389 try: | |
| 390 setuptools_dist = ws.find(pkg_resources.Requirement.parse('setuptools', | |
| 391 replacement=False)) | |
| 392 except TypeError: | |
| 393 # old distribute API | |
| 394 setuptools_dist = ws.find(pkg_resources.Requirement.parse('setuptools')) | |
| 395 | |
| 396 if setuptools_dist is None: | |
| 397 log.warn('No setuptools distribution found') | |
| 398 return | |
| 399 # detecting if it was already faked | |
| 400 setuptools_location = setuptools_dist.location | |
| 401 log.warn('Setuptools installation detected at %s', setuptools_location) | |
| 402 | |
| 403 # if --root or --preix was provided, and if | |
| 404 # setuptools is not located in them, we don't patch it | |
| 405 if not _under_prefix(setuptools_location): | |
| 406 log.warn('Not patching, --root or --prefix is installing Distribute' | |
| 407 ' in another location') | |
| 408 return | |
| 409 | |
| 410 # let's see if its an egg | |
| 411 if not setuptools_location.endswith('.egg'): | |
| 412 log.warn('Non-egg installation') | |
| 413 res = _remove_flat_installation(setuptools_location) | |
| 414 if not res: | |
| 415 return | |
| 416 else: | |
| 417 log.warn('Egg installation') | |
| 418 pkg_info = os.path.join(setuptools_location, 'EGG-INFO', 'PKG-INFO') | |
| 419 if (os.path.exists(pkg_info) and | |
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420 _same_content(pkg_info, SETUPTOOLS_PKG_INFO)): |
| 231 | 421 log.warn('Already patched.') |
| 422 return | |
| 423 log.warn('Patching...') | |
| 424 # let's create a fake egg replacing setuptools one | |
| 425 res = _patch_egg_dir(setuptools_location) | |
| 426 if not res: | |
| 427 return | |
| 428 log.warn('Patched done.') | |
| 429 _relaunch() | |
| 430 | |
| 431 | |
| 432 def _relaunch(): | |
| 433 log.warn('Relaunching...') | |
| 434 # we have to relaunch the process | |
| 435 # pip marker to avoid a relaunch bug | |
| 436 if sys.argv[:3] == ['-c', 'install', '--single-version-externally-managed']: | |
| 437 sys.argv[0] = 'setup.py' | |
| 438 args = [sys.executable] + sys.argv | |
| 439 sys.exit(subprocess.call(args)) | |
| 440 | |
| 441 | |
| 442 def _extractall(self, path=".", members=None): | |
| 443 """Extract all members from the archive to the current working | |
| 444 directory and set owner, modification time and permissions on | |
| 445 directories afterwards. `path' specifies a different directory | |
| 446 to extract to. `members' is optional and must be a subset of the | |
| 447 list returned by getmembers(). | |
| 448 """ | |
| 449 import copy | |
| 450 import operator | |
| 451 from tarfile import ExtractError | |
| 452 directories = [] | |
| 453 | |
| 454 if members is None: | |
| 455 members = self | |
| 456 | |
| 457 for tarinfo in members: | |
| 458 if tarinfo.isdir(): | |
| 459 # Extract directories with a safe mode. | |
| 460 directories.append(tarinfo) | |
| 461 tarinfo = copy.copy(tarinfo) | |
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462 tarinfo.mode = 448 # decimal for oct 0700 |
| 231 | 463 self.extract(tarinfo, path) |
| 464 | |
| 465 # Reverse sort directories. | |
| 466 if sys.version_info < (2, 4): | |
| 467 def sorter(dir1, dir2): | |
| 468 return cmp(dir1.name, dir2.name) | |
| 469 directories.sort(sorter) | |
| 470 directories.reverse() | |
| 471 else: | |
| 472 directories.sort(key=operator.attrgetter('name'), reverse=True) | |
| 473 | |
| 474 # Set correct owner, mtime and filemode on directories. | |
| 475 for tarinfo in directories: | |
| 476 dirpath = os.path.join(path, tarinfo.name) | |
| 477 try: | |
| 478 self.chown(tarinfo, dirpath) | |
| 479 self.utime(tarinfo, dirpath) | |
| 480 self.chmod(tarinfo, dirpath) | |
| 481 except ExtractError: | |
| 482 e = sys.exc_info()[1] | |
| 483 if self.errorlevel > 1: | |
| 484 raise | |
| 485 else: | |
| 486 self._dbg(1, "tarfile: %s" % e) | |
| 487 | |
| 488 | |
| 489 def main(argv, version=DEFAULT_VERSION): | |
| 490 """Install or upgrade setuptools and EasyInstall""" | |
| 491 tarball = download_setuptools() | |
| 492 _install(tarball) | |
| 493 | |
| 494 | |
| 495 if __name__ == '__main__': | |
| 496 main(sys.argv[1:]) |