New submission from anatoly techtonik <techto...@gmail.com>:
When tarfile is directed to create tar.gz compressed archive file in a
path different from current, it saves full path information in .gz
header where only filename is required.
This causes problems with decompression utilities, such as 7zip. The
testsuite with patch are attached.
{{{
tar -czf dist\create_tar.tar.gz package
7z l dist\create_tar.tar.gz > tar.out
python test_create.tar.gz.py
7z l dist\create_py.tar.gz > py.out
diff -pu3 tar.out py.out
}}}
{{{
--- tar.out Fri Dec 26 15:12:42 2008
+++ py.out Fri Dec 26 15:12:42 2008
@@ -1,10 +1,10 @@
7-Zip 4.57 Copyright (c) 1999-2007 Igor Pavlov 2007-12-06
-Listing archive: dist\create_tar.tar.gz
+Listing archive: dist\create_py.tar.gz
Date Time Attr Size Compressed Name
------------------- ----- ------------ ------------
------------------------
-2008-12-26 15:12:41 10240 170 create_tar.tar
+2008-12-26 15:03:39 10240 141 dist/create_py.tar
------------------- ----- ------------ ------------
------------------------
- 10240 170 1 files, 0 folders
+ 10240 141 1 files, 0 folders
}}}
See also issue 1886 and msg61515 in particular
----------
components: Distutils, Library (Lib)
files: test_tarfile.extrapath.zip
messages: 78296
nosy: techtonik
severity: normal
status: open
title: tarfile keeps excessive dir structure in compressed files
versions: Python 2.5, Python 2.6, Python 2.7
Added file: http://bugs.python.org/file12451/test_tarfile.extrapath.zip
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue4750>
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