#   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/>.
#

# test that optimizing command lists doesn't inappropriately short-cut commands

# also includes optimizing last command in a list separated by `;'

if [ -x /bin/echo ] ; then
	binecho=/bin/echo
elif [ -x /usr/bin/echo ]; then
	binecho=/usr/bin/echo
else
	enable -n echo
	binecho=echo
fi

export binecho

: ${THIS_SH:=./bash} ${TMPDIR:=/var/tmp}

${THIS_SH} -c 'trap "echo WORKS && rm $TMPDIR/x$$" EXIT && touch $TMPDIR/x$$' 
${THIS_SH} -c 'trap "echo WORKS && rm $TMPDIR/x$$" EXIT && touch $TMPDIR/x$$ ; $binecho done' 

( trap "echo WORKS && rm $TMPDIR/x$$" EXIT && touch $TMPDIR/x$$ )

${THIS_SH} -c 'echo a && { $binecho b && $binecho c ; } && echo d'
${THIS_SH} -c 'echo a && { $binecho b && $binecho c ; } && echo d ; $binecho e'

${THIS_SH} -c 'echo A && $binecho B'
${THIS_SH} -c '$binecho c && echo d'

$THIS_SH -c '$binecho c && $binecho d && echo e'

$THIS_SH -c 'trap "echo WORKS" EXIT ; $binecho x ; $binecho y ; $binecho z'

${THIS_SH} -c 'echo w ; { echo x ; $binecho y; }; $binecho z'

echo =====

( trap "echo WORKS && rm $TMPDIR/x$$" EXIT && touch $TMPDIR/x$$ )
( trap "echo WORKS && rm $TMPDIR/x$$" EXIT && touch $TMPDIR/x$$ ; $binecho done )

( echo a && { $binecho b && $binecho c ; } && echo d )
( echo a && { $binecho b && $binecho c ; } && echo d ; $binecho e )

( echo A && $binecho B )
( $binecho c && echo d )

( $binecho c && $binecho d && echo e )

( trap "echo WORKS" EXIT ; $binecho x ; $binecho y ; $binecho z )

( echo w ; { echo x ; $binecho y; }; $binecho z )