68 lines
2.6 KiB
Plaintext
68 lines
2.6 KiB
Plaintext
Suggestions for improving GNU tar.
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* Incorporate fixes from major distributions, e.g., Debian GNU/Linux.
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* Fix tar so that it can read and write POSIX.1-1990 tar archives.
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* Add support for POSIX 1003.1-2001 tar archives
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(along with technical corrections to the standard since 2001).
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* Add support for a 'pax' command that conforms to POSIX 1003.1-2001.
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This would unify paxutils with tar.
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* Remove command-line incompatibilities between GNU tar and UNIX tar
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as specified by UNIX98. The main problems are:
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l GNU tar doesn't cross filesystem boundaries.
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UNIX98 tar warns if all links cannot be resolved.
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(GNU tar has no similar option.)
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o GNU tar says output old format.
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UNIX98 tar says don't chown files after extracting
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(GNU tar uses "--no-same-owner" for this).
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Many people rely on GNU tar's "l" and "o" so we can't abruptly change
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GNU tar to be compatible with UNIX98 tar.
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However, "o" is relatively easy: we can extend GNU tar so that "o" is
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a synonym for --no-same-owner when extracting, keeping "o"'s current
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semantics when creating. This is a bit of a hack, but it shouldn't
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break things.
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"l" will be harder, since it's a clear incompatibility. Perhaps we
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could announce a phase-in period where "l" changes in semantics.
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However, the first step should be to support the UNIX98 semantics,
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using a long option, without changing the meaning of "l" for now. That
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will give people a migration strategy.
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* Interoperate better with Joerg Schilling's star implementation.
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* Add an option to remove files that compare successfully.
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From: Roesinger Eric <ROESINGE@tce.com>
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Date: Sat, 28 Jul 2001 18:43:43 -0500
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It would be useful to be able to use '--remove-files' with '--diff',
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to remove all files that compare successfully, when verifying a backup.
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* Copyright notice
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Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of GNU tar.
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GNU tar is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU tar is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with tar; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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