Package: python2.7
Severity: wishlist
Tags: patch
Currently Debian patch tracker uses python 2 and fails to open
*.debian.tar.xz, see for example:
http://patch-tracker.debian.org/package/sbcl/2:1.1.15-1
I've made quick and dirty backport of tarfile from python3.
Tested only with patch tracker:
http://patches.osdyson.org/package/sbcl/2:1.1.15-1+dyson1
--- System information. ---
Architecture: amd64
Kernel: Linux 3.10-2-amd64
Debian Release: jessie/sid
500 unstable mirror.yandex.ru
500 testing security.debian.org
500 testing mirror.yandex.ru
500 stable sdkrepo.atlassian.com
--- Package information. ---
Depends (Version) | Installed
===================================-+-============
python2.7-minimal (= 2.7.6-5) | 2.7.6-5
libpython2.7-stdlib (= 2.7.6-5) | 2.7.6-5
mime-support | 3.54
Package's Recommends field is empty.
Suggests (Version) | Installed
============================-+-===========
python2.7-doc |
binutils | 2.24-5
--- /usr/lib/python2.7/tarfile.py.orig 2014-04-22 09:04:41.000000000 +0100
+++ /usr/lib/python2.7/tarfile.py 2014-04-22 09:10:53.000000000 +0100
@@ -440,6 +440,19 @@
else:
self.cmp = bz2.BZ2Compressor()
+ if comptype == "xz":
+ try:
+ import lzma
+ except ImportError:
+ raise CompressionError("lzma module is not available")
+ if mode == "r":
+ self.dbuf = b""
+ self.cmp = lzma.LZMADecompressor()
+ self.exception = lzma.LZMAError
+ else:
+ self.cmp = lzma.LZMACompressor()
+
+
def __del__(self):
if hasattr(self, "closed") and not self.closed:
self.close()
@@ -1759,11 +1772,37 @@
t._extfileobj = False
return t
+ @classmethod
+ def xzopen(cls, name, mode="r", fileobj=None, compresslevel=9, **kwargs):
+ """Open lzma compressed tar archive name for reading or writing.
+ Appending is not allowed.
+ """
+ if mode not in ("r", "w"):
+ raise ValueError("mode must be 'r' or 'w'")
+
+ try:
+ import lzma
+ except ImportError:
+ raise CompressionError("lzma module is not available")
+
+ fileobj = lzma.LZMAFile(fileobj or name, mode)
+
+ try:
+ t = cls.taropen(name, mode, fileobj, **kwargs)
+ except (lzma.LZMAError, EOFError):
+ fileobj.close()
+ raise ReadError("not an lzma file")
+ t._extfileobj = False
+ return t
+
+
# All *open() methods are registered here.
OPEN_METH = {
"tar": "taropen", # uncompressed tar
"gz": "gzopen", # gzip compressed tar
- "bz2": "bz2open" # bzip2 compressed tar
+ "bz2": "bz2open", # bzip2 compressed tar
+ "xz": "xzopen" # lzma compressed tar
+
}
#--------------------------------------------------------------------------
