#!/bin/sh

# ================================================================
# This is similar to reg_test/run except that this one is only ever run
# manually, not automatically as part of the build. It can be used to iterate on
# as-yet-unreleased features (in particular, features whose definition isn't
# finalized) without breaking the build.
# ================================================================
set -e

ourdir=`dirname $0`
srcdir=$ourdir/../..
pwd=`pwd`

try1=$pwd/../mlr    # For autoconf builds, in-tree or out-of-tree
try2=$srcdir/c/mlr  # For non-autoconf builds
if [ -x "$try1" ]; then
  path_to_mlr=$try1
elif [ -x "$try2" ]; then
  path_to_mlr=$try2
else
  echo "$0: Could not find path to mlr executable." 1>&2
  echo "Try 1: $try1" 1>&2
  echo "Try 2: $try2" 1>&2
  exit 1
fi
do_diff="true"

for arg; do
  if [ "$1" = "--valgrind" ]; then
    # Leak-check the test suite. Needs 'make mlrg' first.
    # ../tools/clean-valg can be used to filter the output.
    path_to_mlr="valgrind --leak-check=full ${path_to_mlr}g"
  elif [ "$1" = "--nodiff" ]; then
    do_diff="false"
  fi
done
echo Using mlr executable $path_to_mlr

indir=$ourdir/input
expdir=$ourdir/expected
outdir=$pwd/output-regtest
reloutdir=./output-regtest
outfile=$outdir/out
expfile=$expdir/out
mkdir -p $outdir

rm -rvf $outdir
mkdir -p $outdir
touch $outfile
echo

num_passed=0

announce() {
	echo >> $outfile
	echo "================================================================" >> $outfile
	echo "$@" >> $outfile
	echo >> $outfile
}

mention() {
	echo >> $outfile
	echo ---------------------------------------------------------------- "$@" >> $outfile
}

run_mlr() {
  # Use just "mlr" for info messages
	echo mlr "$@"
	echo mlr "$@" >> $outfile
  # Use path to mlr for invoking the command
	$path_to_mlr "$@" >> $outfile
	echo >> $outfile
	# since set -e
	num_passed=`expr $num_passed + 1`
}

mlr_expect_fail() {
  # Use just "mlr" for info messages
	echo mlr "$@"
	echo mlr "$@" >> $outfile
  # Use path to mlr for invoking the command
    set +e
	$path_to_mlr "$@" >> $outfile 2>&1
    status=$?
    if [ $status -ne 1 ]; then
        echo "Exit status was $status; expected 1."
        echo "Exit status was $status; expected 1." >> $outfile
    fi
    set -e
	echo >> $outfile
    test $status -eq 1
	# since set -e
	num_passed=`expr $num_passed + 1`
}

# ================================================================
announce FUNC PROHIBITS

mlr_expect_fail --from $indir/abixy put '
  func f(x,y,z) {
    return $a # cannot reference srecs from functions
  }
'

mlr_expect_fail --from $indir/abixy put '
  func f(x,y,z) {
    return $[x] # cannot reference srecs from functions
  }
'

run_mlr -n put ''

# ================================================================
cat $outfile

if [ "$do_diff" = "true" ]; then
  echo
  diff -I '^mlr ' -C5 $expfile $outfile
  echo diff OK # since set -e
  echo ALL REGRESSION TESTS PASSED
  echo Tests completed: $num_passed
fi