STINNER Victor added the comment:
+ parser.add_argument('--gz', '--gunzip', '--gzip', '--tgz', '-z',
+ '--ungzip', action = 'store_true',
+ help = 'gz compression')
+ parser.add_argument('--bz2', '--bzip2', '--tbz2', '--tbz', '--tb2',
+ action = 'store_true', help = 'bz2 compression')
+ parser.add_argument('--xz', '--lzma', action = 'store_true',
+ help = 'xz compression')
Do we really need so much names for the same option? Where do these names come
from?
--
main() should exit after extract and create to only do one operation and don't
always display the usage.
It would be better to not duplicate the list of options and use
parser.print_help() instead of sys.stdout.write(__doc__).
Some consistency tests on exclusive options (bzip/gzip/lzma and
list/create/extract) would be nice.
--
tar options on Linux:
-c, --create
-t, --list
-x, --extract, --get
-z, --gzip, --ungzip
-j, -I, --bzip
-C, --directory DIRECTORY
For tarfile, I propose to have a shorter list, and try to stay somehow
compatible with tar:
-c, --create
-t, --list
-x, --extract
-z, --gzip
-j, --bzip
-C, --directory DIRECTORY
Users of the TAR format usually come from UNIX, so using the same command line
options should not be so surprising.
I don't like the idea of an optional argument for --extract: "--extract file1
file2" is usually understood/read as "--extract=filename archive.tar". If you
really think that we need to support "only extract some files", it should be a
different option. Linux tar command has no such option. I propose to drop this
feature (always extract all files).
----------
nosy: +haypo
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<http://bugs.python.org/issue13477>
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