#!/bin/sh -eu

datadir="debian/tests/preprocess-data"
moddir="$AUTOPKGTEST_TMP/modules"

# Create dummy module files and modules.builtin
while read -r filename; do
    mkdir -p "$moddir/$(dirname "$filename")"
    touch "$moddir/$filename"
done < "$datadir/filelist"
cp "$datadir/modules.builtin" "$moddir/"

# Access $moddir via a symlink, to test for Debian Bug #955210
ln -nsf "$moddir" "${moddir}.symlink"
moddir="${moddir}.symlink"

my_rc=0

export KW_DEFCONFIG_DIR="$PWD/$datadir"
for input in "$datadir"/*.in; do
    name="$(basename "${input%.in}")"
    echo "I: Testing preprocess case $name"

    output="$AUTOPKGTEST_TMP/$name.out"
    error="$AUTOPKGTEST_TMP/$name.err"
    rc=0; commands/preprocess "$input" "$moddir" >"$output" 2>"$error" || rc=$?

    # Replace source locations in error messages, so expected error
    # messages don't need to be updated for every change of line no.
    sed -i 's/at [^ ]* line [0-9]*/at SOMEWHERE/' "$error"

    # Find expected output, error messages and exit code
    exp_output="$datadir/$name.out"
    if [ -f "$datadir/$name.err" ]; then
	exp_error="$datadir/$name.err"
    else
	exp_error=/dev/null
    fi
    if [ -f "$datadir/$name.rc" ]; then
	exp_rc="$(cat "$datadir/$name.rc")"
    else
	exp_rc=0
    fi

    # Compare actual with expected
    if diff -q "$exp_output" "$output" && diff -q "$exp_error" "$error" \
       && [ "$rc" = "$exp_rc" ]; then
	echo "I: pass"
    else
	diff -u "$exp_output" "$output" || true
	diff -u "$exp_error" "$error" || true
	echo "E: rc=$rc"
	my_rc=1
    fi
done

exit "$my_rc"