0aa991f386
UPDATE_COPYRIGHT_USE_INTERVALS=1 \
$HOME/src/gnu/gnulib/build-aux/update-copyright \
$(git ls-files | sed -e '/^gnulib$/d
/^paxutils$/d
/^COPYING$/d
/\/fdl.texi$/d')
sed -i '2000,${
/^Copyright @copyright/d
s/^[0-9]*--\(2025 Free Software Foundation, Inc.\)/Copyright (C) \1/
}' doc/tar.texi
90 lines
2.9 KiB
Plaintext
90 lines
2.9 KiB
Plaintext
# Process this file with autom4te to create testsuite. -*- Autotest -*-
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# Test suite for GNU tar.
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# Copyright 2006-2025 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 3 of the License, or
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# (at your option) 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 this program. If not, see <http://www.gnu.org/licenses/>.
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# Using tar 1.15.x the following equivalent command sets:
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#
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# 1. tar cf archive file1 file2
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# and
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# 2. tar cfT archive /dev/null
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# tar rf archive file1
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# tar rt archive file2
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#
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# produced different archives (GNU format is assumed). It was reported
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# by TAMUKI Shoichi on 2006-07-21 [1].
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#
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# The bug was due to tar being unable to discern between GNU and OLDGNU
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# formats and always assuming the latter. The main difference between
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# the two is that OLDGNU preserves all bits in the mode field, whereas
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# GNU format keeps only the lower 9 ones (mode & 0777).
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#
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# This was fixed on 2006-07-24 (commit f4e4adea80a) by making tar truncate
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# the mode field even in OLDGNU format. Obviously, the fix broke the
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# format backward compatibility, but it went unnoticed until 2009-10-03
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# (after all, the OLDGNU format is not in much use nowadays), when
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# Igor Zhbanov reported it [2].
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#
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# The final fix was applied on 2009-10-04.
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#
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# References:
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# [1] <200607210526.AA03440@tamuki.linet.gr.jp>
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# http://lists.gnu.org/archive/html/bug-tar/2006-07/msg00029.html
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# [2] <f44001920910020335v4cadfesf54f6593d5124814@mail.gmail.com>
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# http://lists.gnu.org/archive/html/bug-tar/2009-10/msg00006.html
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# The test case below verifies that the equivalent create and append commands
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# produce binary equivalent archives for all formats.
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AT_SETUP([append vs. create])
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AT_KEYWORDS([append append02 append-gnu])
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AT_TAR_CHECK([
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genfile --file file1
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genfile --file file2
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# Make sure file timestamps in the archive will not differ
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MTIME="--mtime=@0"
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# For PAX archives, we need to make sure extended header names are
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# reproducible and that their contents won't change with time
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if test $[]TEST_TAR_FORMAT = posix; then
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TAR_OPTIONS="$TAR_OPTIONS --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=mtime,delete=atime,delete=ctime"
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fi
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echo Creating archive.1
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tar $MTIME -cf archive.1 file1 file2
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echo Creating archive.2
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tar $MTIME -cf archive.2 -T /dev/null
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tar $MTIME -rf archive.2 file1
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tar $MTIME -rf archive.2 file2
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echo Comparing archives
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cmp archive.1 archive.2
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],
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[0],
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[Creating archive.1
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Creating archive.2
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Comparing archives
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])
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AT_CLEANUP
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# End of append02.at
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