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Diffstat (limited to 'tests/append02.at')
| -rw-r--r-- | tests/append02.at | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/tests/append02.at b/tests/append02.at new file mode 100644 index 0000000..3ca4d4c --- /dev/null +++ b/tests/append02.at @@ -0,0 +1,90 @@ +# Process this file with autom4te to create testsuite. -*- Autotest -*- + +# Test suite for GNU tar. +# Copyright 2006-2007, 2009, 2013-2014, 2016 Free Software Foundation, +# Inc. + +# This file is part of GNU tar. + +# GNU tar is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. + +# GNU tar is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +# Using tar 1.15.x the following equivalent command sets: +# +# 1. tar cf archive file1 file2 +# and +# 2. tar cfT archive /dev/null +# tar rf archive file1 +# tar rt archive file2 +# +# produced different archives (GNU format is assumed). It was reported +# by TAMUKI Shoichi on 2006-07-21 [1]. +# +# The bug was due to tar being unable to discern between GNU and OLDGNU +# formats and always assuming the latter. The main difference between +# the two is that OLDGNU preserves all bits in the mode field, whereas +# GNU format keeps only the lower 9 ones (mode & 0777). +# +# This was fixed on 2006-07-24 (commit f4e4adea80a) by making tar truncate +# the mode field even in OLDGNU format. Obviously, the fix broke the +# format backward compatibility, but it went unnoticed until 2009-10-03 +# (after all, the OLDGNU format is not in much use nowadays), when +# Igor Zhbanov reported it [2]. +# +# The final fix was applied on 2009-10-04. +# +# References: +# [1] <200607210526.AA03440@tamuki.linet.gr.jp> +# http://lists.gnu.org/archive/html/bug-tar/2006-07/msg00029.html +# [2] <f44001920910020335v4cadfesf54f6593d5124814@mail.gmail.com> +# http://lists.gnu.org/archive/html/bug-tar/2009-10/msg00006.html + +# The test case below verifies that the equivalent create and append commands +# produce binary equivalent archives for all formats. + +AT_SETUP([append vs. create]) +AT_KEYWORDS([append append02 append-gnu]) + +AT_TAR_CHECK([ +genfile --file file1 +genfile --file file2 + +# Make sure file timestamps in the archive will not differ +MTIME="--mtime=@0" + +# For PAX archives, we need to make sure extended header names are +# reproducible and that their contents won't change with time +if test $[]TEST_TAR_FORMAT = posix; then + TAR_OPTIONS="$TAR_OPTIONS --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=mtime,delete=atime,delete=ctime" +fi + +echo Creating archive.1 +tar $MTIME -cf archive.1 file1 file2 + +echo Creating archive.2 +tar $MTIME -cf archive.2 -T /dev/null +tar $MTIME -rf archive.2 file1 +tar $MTIME -rf archive.2 file2 + +echo Comparing archives +cmp archive.1 archive.2 +], +[0], +[Creating archive.1 +Creating archive.2 +Comparing archives +]) + +AT_CLEANUP + +# End of append02.at |