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#!/bin/sh
# Test cp backup to source file.

# Copyright (C) 1998, 1999, 2000, 2002, 2004, 2006 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 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, see <http://www.gnu.org/licenses/>.

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

. $srcdir/../lang-default
. $srcdir/../envvar-check

pwd=`pwd`
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd "$pwd" && rm -rf $t0 && exit $status' 0
trap '(exit $?); exit' 1 2 13 15

framework_failure=0
mkdir -p $tmp || framework_failure=1
cd $tmp || framework_failure=1

echo a > a || framework_failure=1
echo a-tilde > a~ || framework_failure=1

if test $framework_failure = 1; then
  echo "$0: failure in testing framework" 1>&2
  (exit 1); exit 1
fi

# This cp command should exit nonzero.
cp --b=simple a~ a > out 2>&1 && fail=1

sed "s,cp:,XXX:," out > out2

cat > exp <<\EOF
XXX: backing up `a' would destroy source;  `a~' not copied
EOF

cmp out2 exp || fail=1

(exit $fail); exit $fail