[Checkins] SVN: zc.buildout/branches/help-api/src/zc/buildout/rmtree.py updated
Godefroid Chapelle
gotcha at bubblenet.be
Sun Mar 29 17:17:30 EDT 2009
Log message for revision 98471:
updated
Changed:
A zc.buildout/branches/help-api/src/zc/buildout/rmtree.py
-=-
Added: zc.buildout/branches/help-api/src/zc/buildout/rmtree.py
===================================================================
--- zc.buildout/branches/help-api/src/zc/buildout/rmtree.py (rev 0)
+++ zc.buildout/branches/help-api/src/zc/buildout/rmtree.py 2009-03-29 21:17:30 UTC (rev 98471)
@@ -0,0 +1,72 @@
+##############################################################################
+#
+# Copyright (c) 2006 Zope Corporation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+
+
+import shutil
+import os
+import doctest
+
+def rmtree (path):
+ """
+ A variant of shutil.rmtree which tries hard to be successful
+ On windows shutil.rmtree aborts when it tries to delete a
+ read only file.
+ This tries to chmod the file to writeable and retries before giving up.
+
+ >>> import shutil
+ >>> from tempfile import mkdtemp
+
+ Let's make a directory ...
+ >>> d = mkdtemp()
+
+ and make sure it is actually there
+ >>> os.path.isdir (d)
+ 1
+
+ Now create a file ...
+ >>> foo = os.path.join (d, 'foo')
+ >>> open (foo, 'w').write ('huhu')
+
+ and make it unwriteable
+ >>> os.chmod (foo, 0400)
+
+ now let's see how shutil.rmtree behaves
+
+ >>> shutil.rmtree (d) # doctest: +ELLIPSIS
+ Traceback (most recent call last):
+ ...
+ OSError: [Errno 13] Permission denied: '...foo'
+
+ the directory is still there!
+ >>> os.path.isdir (d)
+ 1
+
+ the new function should be able to solve this for us
+ >>> rmtree (d)
+
+ and now the directory is gone
+ >>> os.path.isdir (d)
+ 0
+ """
+ def retry_writeable (func, path, exc):
+ os.chmod (path, 0600)
+ func (path)
+
+ shutil.rmtree (path, onerror = retry_writeable)
+
+def test_suite():
+ return doctest.DocTestSuite()
+
+if "__main__" == __name__:
+ doctest.testmod()
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