#! /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_dryrun) works as expected.

. test-init.sh

plan_ 14

if echo "all: ; @+printf %sbb%s aa cc" | $MAKE -n -f - | grep aabbcc; then
  make_plus_silence () { return 0; }
else
  make_plus_silence () { return 1; }
fi

mkdir sub

echo AC_OUTPUT >> configure.ac

cat > Makefile.am <<'END'
all:
	: Dummy, nothing to do.
foo:
	$(MAKE) all
notdry:
	@echo ":: $$MAKEFLAGS ::"; : For debugging.
	$(am__make_dryrun) && exit 1; exit 0
dry:
	+@echo ":: $$MAKEFLAGS ::"; : For debugging.
	+$(am__make_dryrun) || exit 1; echo ok > from-dry-mode
END

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

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

check_no_dryrun ()
{
  command_ok_ "dry-run ($cnt)" $MAKE notdry ${1+"$@"}
  cnt=$(($cnt + 1))
}
cnt=1

check_no_dryrun

# Test against a known regression.  This was especially heinous, since
# make running in normal mode was sometimes mistaken for make running
# in dry mode.
check_no_dryrun TESTS="n1.test n2.test"
check_no_dryrun TESTS="n1 n2" AM_MAKEFLAGS="TESTS='n1 n2'"
check_no_dryrun TESTS="n1 n2" AM_MAKEFLAGS='TESTS="n1 n2"'
check_no_dryrun FOOFLAGS="-n -n -knf2 n --none -n"
check_no_dryrun MYFLAGS="-n --dryrun -n --dry-run -n"

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

check_dryrun ()
{
  r=ok directive=
  case $1 in
    -C) condition=$2 reason=$3; shift; shift; shift;;
     *) condition=: reason=;;
  esac
  if $condition; then
    $MAKE dry ${1+"$@"}   || r='not ok'
    test -f from-dry-mode || r='not ok'
    rm -f from-dry-mode   || fatal_ "cleaning up"
  else
    directive=SKIP
  fi
  result_ "$r" -D "$directive" -r "$reason" "not dry-run ($cnt)"
  unset r directive reason
  cnt=$(($cnt + 1))
}
cnt=1

check_dryrun -C make_plus_silence 'recipe prefix "+" unsupported' -n
check_dryrun -C using_gmake "\$MAKE is not GNU make" --dry-run -k

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

# Test for when shell metacharacters or backslashes are in $(MAKEFLAGS).

check_metachars ()
{
  r=ok
  $MAKE notdry ${1+"$@"} || r='not ok'
  if test -f bad; then
    r='not ok'
  else
    rm -f bad || fatal_ "cleaning up"
  fi
  result_ "$r" "dry-run, with shell metachars ($cnt)"
  unset r
  cnt=$(($cnt + 1))
}
cnt=1

check_metachars MYFLAGS="-n \"n\" '-n' --none -n"
check_metachars MYFLAGS='-knf2\ n\ \\n'
check_metachars MYFLAGS="(&) | ; \" \` '"
check_metachars MYFLAGS=" ' # ' "
check_metachars MYFLAGS='$(foo)'
check_metachars MYFLAGS='`touch bad`'

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

: