Dogcows Code - chaz/tar/blob - tests/link01.at

   1 # Process this file with autom4te to create testsuite. -*- Autotest -*-
   2
   3 # Test suite for GNU tar.
   4 # Copyright 2004, 2007, 2009, 2013-2014 Free Software Foundation, Inc.
   5
   6 # This file is part of GNU tar.
   7
   8 # GNU tar is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12
  13 # GNU tar is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 # Problem: If a member with link count > 2 was stored in the archive twice,
  22 # previous versions of tar were not able to extract it, since they
  23 # were trying to link the file to itself, which always failed and
  24 # lead to removing the already extracted copy. This script tests
  25 # the workaround by Paul Eggert that leaves the extracted copy
  26 # untouched.
  27 #
  28 # Reported by: Toby Peterson <toby@apple.com>
  29 #
  30 # References: <2330D503-D20A-11D8-A0CF-00039391EECE@apple.com>
  31 # http://lists.gnu.org/archive/html/bug-tar/2004-07/msg00009.html
  32
  33 AT_SETUP([link count gt 2])
  34 AT_KEYWORDS([hardlinks link01])
  35
  36 AT_TAR_CHECK([
  37 mkdir directory
  38 mkdir directory/test1
  39 mkdir directory/test2
  40
  41 echo TEST > directory/test1/test.txt
  42 ln directory/test1/test.txt directory/test2/test.txt || AT_SKIP_TEST
  43
  44 tar cf archive directory/test1/test.txt directory/test1/test.txt
  45
  46 rm -r directory
  47 tar xf archive --warning=no-timestamp
  48
  49 ls directory/test1
  50 ],
  51 [0],
  52 [test.txt
  53 ])
  54
  55 AT_CLEANUP