# HG changeset patch
# User Craig Citro <craigcitro@gmail.com>
# Date 1244772720 25200
# Node ID b8fff2295d432e9fa9ab70f77bcb31db8709b8e5
# Parent 43a8b91f5a50422494f8c521cae7d2b256f811f7
Additional fix for race condition with parallel distutils, see trac #6234.
diff -r 43a8b91f5a50 -r b8fff2295d43 setup.py
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| 326 | 326 | package_dir = build_py.get_package_dir(package) |
| 327 | 327 | ext_filename = os.path.join(package_dir, |
| 328 | 328 | self.get_ext_filename(base)) |
| | 329 | relative_ext_filename = self.get_ext_filename(base) |
| 329 | 330 | else: |
| 330 | 331 | ext_filename = os.path.join(self.build_lib, |
| 331 | 332 | self.get_ext_filename(fullname)) |
| | 333 | relative_ext_filename = self.get_ext_filename(fullname) |
| | 334 | |
| | 335 | # while dispatching the calls to gcc in parallel, we sometimes |
| | 336 | # hit a race condition where two separate build_ext objects |
| | 337 | # try to create a given directory at the same time; whoever |
| | 338 | # loses the race then seems to throw an error, saying that |
| | 339 | # the directory already exists. so, instead of fighting to |
| | 340 | # fix the race condition, we simply make sure the entire |
| | 341 | # directory tree exists now, while we're processing the |
| | 342 | # extensions in serial. |
| | 343 | relative_ext_dir = os.path.split(relative_ext_filename)[0] |
| | 344 | prefixes = ['', self.build_lib, self.build_temp] |
| | 345 | for prefix in prefixes: |
| | 346 | path = os.path.join(prefix, relative_ext_dir) |
| | 347 | if not os.path.exists(path): |
| | 348 | os.makedirs(path) |
| | 349 | |
| 332 | 350 | depends = sources + ext.depends |
| 333 | 351 | if not (self.force or newer_group(depends, ext_filename, 'newer')): |
| 334 | 352 | log.debug("skipping '%s' extension (up-to-date)", ext.name) |
