#!/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

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"
fi
echo Using mlr executable $path_to_mlr

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

rm -f $outfile
touch $outfile
echo

num_passed=0

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

# ================================================================
announce ABSENT-HANDLING

run_mlr put '$a = $a * 2' <<EOF
a=1,b=2
a=,b=4
x=,b=6
a=7,b=8
EOF

run_mlr put '$new = $a * 2' <<EOF
a=1,b=2
a=,b=4
x=,b=6
a=7,b=8
EOF

run_mlr put '$new = @nonesuch * 2' <<EOF
a=1,b=2
a=,b=4
x=,b=6
a=7,b=8
EOF

run_mlr put '$new = @nonesuch * $a' <<EOF
a=1,b=2
a=,b=4
x=,b=6
a=7,b=8
EOF

run_mlr put '@sum = @sum + $a; emit @sum' <<EOF
a=1,b=2
a=,b=4
x=,b=6
a=7,b=8
EOF

run_mlr put '@product = @product * $a; emit @product' <<EOF
a=1,b=2
a=,b=4
x=,b=6
a=7,b=8
EOF

run_mlr put 'begin { @sum = 10 }; @sum = @sum + $a; emit @sum' <<EOF
a=1,b=2
a=,b=4
x=,b=6
a=7,b=8
EOF

run_mlr put 'begin { @product = 10 }; @product = @product * $a; emit @product' <<EOF
a=1,b=2
a=,b=4
x=,b=6
a=7,b=8
EOF

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

echo
echo
echo
echo

diff -I '^mlr ' -C5 $expfile $outfile

# ================================================================
echo ALL REGRESSION TESTS PASSED
echo Tests completed: $num_passed