1 new changeset in pytest:
http://bitbucket.org/hpk42/pytest/changeset/944895de1103/
changeset: 944895de1103
user: gutworth
date: 2011-07-05 19:02:53
summary: insure moving pyc files around is atomic
affected #: 1 file (200 bytes)
--- a/_pytest/assertion/rewrite.py Tue Jul 05 18:01:31 2011 +0200
+++ b/_pytest/assertion/rewrite.py Tue Jul 05 12:02:53 2011 -0500
@@ -87,7 +87,7 @@
cache = py.path.local(fn_pypath.dirname).join("__pycache__", cache_fn)
if _use_cached_pyc(fn_pypath, cache):
state.trace("found cached rewritten pyc for %r" % (fn,))
- cache.copy(pyc)
+ _atomic_copy(cache, pyc)
else:
state.trace("rewriting %r" % (fn,))
_make_rewritten_pyc(state, fn_pypath, pyc)
@@ -163,10 +163,16 @@
def _cache_pyc(state, pyc, cache):
try:
cache.dirpath().ensure(dir=True)
- pyc.copy(cache)
+ _atomic_copy(pyc, cache)
except EnvironmentError:
state.trace("failed to cache %r as %r" % (pyc, cache))
+def _atomic_copy(orig, to):
+ """An atomic copy (at least on POSIX platforms)"""
+ temp = py.path.local(orig.strpath + str(os.getpid()))
+ orig.copy(temp)
+ temp.rename(to)
+
def rewrite_asserts(mod):
"""Rewrite the assert statements in mod."""
Repository URL: https://bitbucket.org/hpk42/pytest/
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