#!/bin/sh
# confirm that `mv symlink symlink' doesn't remove symlink
# Based on an example from David Luyer.

# Copyright (C) 2001, 2004 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 2 of the License, 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.

if test "$VERBOSE" = yes; then
  set -x
  mv --version
fi

. $srcdir/../envvar-check

pwd=`pwd`
tmp=mv-slink2.$$
trap 'status=$?; cd $pwd; rm -rf $tmp && exit $status' 0
trap '(exit $?); exit' 1 2 13 15

framework_failure=0
mkdir $tmp || framework_failure=1
cd $tmp || framework_failure=1
touch file || framework_failure=1
ln -s file s || framework_failure=1

if test $framework_failure = 1; then
  echo 'failure in testing framework' 1>&2
  (exit 1); exit 1
fi

fail=0

# This must fail.
mv s s 2> /dev/null && fail=1

# But the symlink, s, must not be removed.
# Before 4.0.36, `s' would have been removed.
test -f s || fail=1

(exit $fail); exit $fail