#! /bin/sh
# Copyright (C) 2012-2013 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, 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/>.

# Check that $(am.make.dry-run) works as expected.

. test-init.sh

plan_ 14

echo AC_OUTPUT >> configure.ac

cat > Makefile.am <<'END'
all:
	@echo "Target '$@' should never run" >&2; exit 1;
notdry-plain:
	$(am.make.dry-run) && exit 1; exit 0
notdry-recursive:
	$(MAKE) notdry-plain
dry-plain:
	+$(am.make.dry-run) || exit 1; echo ok > from-dry-mode
dry-recursive:
	$(MAKE) dry-plain
END

$ACLOCAL    || fatal_ "aclocal failed"
$AUTOCONF   || fatal_ "autoconf failed"
$AUTOMAKE   || fatal_ "automake failed"
./configure || fatal_ "configure failed"

# ----------------------------------------------------------------------

check_no_dryrun ()
{
  for kind in plain recursive; do
    command_ok_ "wet-run, $kind ($cnt)" $MAKE notdry-$kind ${1+"$@"}
  done
  cnt=$(($cnt + 1))
}
cnt=1

check_no_dryrun
check_no_dryrun -k

# Test against a known regression.  This was especially heinous, since
# make running in normal mode was sometimes mistaken for make running
# in dry mode.
mkdir n ./--dry-run
check_no_dryrun -I n
check_no_dryrun -I --dry-run
check_no_dryrun -I n -I --dry-run
rmdir n ./--dry-run

# ----------------------------------------------------------------------

check_dryrun ()
{
  for kind in plain recursive; do
    r=ok
    $MAKE dry-$kind ${1+"$@"} || r='not ok'
    test -f from-dry-mode || r='not ok'
    rm -f from-dry-mode || fatal_ "cleaning up"
    result_ "$r" "dry-run, $kind ($cnt)"
  done
  cnt=$(($cnt + 1))
}
cnt=1

check_dryrun -n
check_dryrun --dry-run -k

# ----------------------------------------------------------------------

: