#!/bin/sh
# ensure that --no-target-directory (-T) works when the destination is
# an empty directory.

# Copyright (C) 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 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

pwd=`pwd`
t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
trap 'status=$?; cd "$pwd" && chmod -R u+rwx $t0 && 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
mkdir -p d/sub empty src d2/sub e2 || framework_failure=1
touch f || framework_failure=1

# Skip this test if there's an underlying kernel bug.
mkdir a b b/a || framework_failure=1

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

mv a b || {
  echo "$0: skipping this test: your kernel's rename syscall is buggy" 1>&2
  (exit 77); exit 77
}

fail=0

# This should succeed, since both src and dest are directories,
# and the dest dir is empty.
mv -fT d empty || fail=1

# Ensure that the source, d, is gone.
ls -d d > /dev/null 2>&1 && fail=1

# Ensure that the dest dir now has a subdirectory.
test -d empty/sub || fail=1


# rename must fail, since the dest is non-empty.
mv -fT src d2 2> /dev/null && fail=1

# rename must fail, since the src is not a directory.
mv -fT f e2 2> /dev/null && fail=1

(exit $fail); exit $fail