diff options
Diffstat (limited to 'Lib/shutil.py')
| -rw-r--r-- | Lib/shutil.py | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/Lib/shutil.py b/Lib/shutil.py index b59017b..344d9d3 100644 --- a/Lib/shutil.py +++ b/Lib/shutil.py @@ -21,6 +21,13 @@ except ImportError: _BZ2_SUPPORTED = False try: + import lzma + del lzma + _LZMA_SUPPORTED = True +except ImportError: + _LZMA_SUPPORTED = False + +try: from pwd import getpwnam except ImportError: getpwnam = None @@ -580,14 +587,14 @@ def _make_tarball(base_name, base_dir, compress="gzip", verbose=0, dry_run=0, """Create a (possibly compressed) tar file from all the files under 'base_dir'. - 'compress' must be "gzip" (the default), "bzip2", or None. + 'compress' must be "gzip" (the default), "bzip2", "xz", or None. 'owner' and 'group' can be used to define an owner and a group for the archive that is being built. If not provided, the current owner and group will be used. The output tar file will be named 'base_name' + ".tar", possibly plus - the appropriate compression extension (".gz", or ".bz2"). + the appropriate compression extension (".gz", ".bz2", or ".xz"). Returns the output filename. """ @@ -598,6 +605,10 @@ def _make_tarball(base_name, base_dir, compress="gzip", verbose=0, dry_run=0, tar_compression['bzip2'] = 'bz2' compress_ext['bzip2'] = '.bz2' + if _LZMA_SUPPORTED: + tar_compression['xz'] = 'xz' + compress_ext['xz'] = '.xz' + # flags for compression program, each element of list will be an argument if compress is not None and compress not in compress_ext: raise ValueError("bad value for 'compress', or compression format not " @@ -684,6 +695,10 @@ if _BZ2_SUPPORTED: _ARCHIVE_FORMATS['bztar'] = (_make_tarball, [('compress', 'bzip2')], "bzip2'ed tar-file") +if _LZMA_SUPPORTED: + _ARCHIVE_FORMATS['xztar'] = (_make_tarball, [('compress', 'xz')], + "xz'ed tar-file") + def get_archive_formats(): """Returns a list of supported formats for archiving and unarchiving. @@ -872,7 +887,7 @@ def _unpack_zipfile(filename, extract_dir): zip.close() def _unpack_tarfile(filename, extract_dir): - """Unpack tar/tar.gz/tar.bz2 `filename` to `extract_dir` + """Unpack tar/tar.gz/tar.bz2/tar.xz `filename` to `extract_dir` """ try: tarobj = tarfile.open(filename) @@ -891,9 +906,13 @@ _UNPACK_FORMATS = { } if _BZ2_SUPPORTED: - _UNPACK_FORMATS['bztar'] = (['.bz2'], _unpack_tarfile, [], + _UNPACK_FORMATS['bztar'] = (['.tar.bz2', '.tbz2'], _unpack_tarfile, [], "bzip2'ed tar-file") +if _LZMA_SUPPORTED: + _UNPACK_FORMATS['xztar'] = (['.tar.xz', '.txz'], _unpack_tarfile, [], + "xz'ed tar-file") + def _find_unpack_format(filename): for name, info in _UNPACK_FORMATS.items(): for extension in info[0]: |