#!/bin/sh
# This is a wrapper script that checks openttd's exit status and
# displays its stderr output

# Get a file to capture stderr to. Use the deprecated -t option, so this
# works on the old mktemp from the mktemp package (which has been
# replaced by the version from the coreutils package).
TMPFILE=`mktemp -t openttd.errout.XXXXXXXXX`

if [ ! -w "$TMPFILE" ]; then
	xmessage "Could not create temporary file for error messages. Not starting OpenTTD."
	exit 1;
fi

# Capture stderr
openttd "$@" 2> "$TMPFILE"
ERRCODE=$?
if [ "$ERRCODE" -ne 0 ]; then
	CODEMSG="OpenTTD returned with error code $ERRCODE."
	if [ -s "$TMPFILE" ]; then
		MESSAGE="$CODEMSG The following error messages were produced:\n\n"
		printf "$MESSAGE" | cat - "$TMPFILE" | fold -s | xmessage -file -
	else
		xmessage "$CODEMSG No error messages were produced."
	fi
fi

rm -f "$TMPFILE"