append02.at

gnu tar 源码包。 tar 软件是 Unix 系统下的一个打包软件

# Process this file with autom4te to create testsuite. -*- Autotest -*-

# Test suite for GNU tar.
# Copyright (C) 2006, 2007 Free Software Foundation, Inc.

# This program 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, or (at your option)
# any later version.

# This program 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

# 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).  Namely, in the
# second case the mode field of all members, except the first, was truncated
# to lower 3 octets (& 0777).
#
# References:
#   <[e-mail]>
#   http://lists.gnu.org/archive/html/bug-tar/2006-07/msg00029.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