#!/bin/sh -f

# Prepend /bin to ${PATH} if it does not contain it.

if [ -z "${PATH##/bin:*}" -a -z "${PATH##*:/bin:*}" -a -z "${PATH##*:/bin}" ]; then

	export PATH="/bin${PATH:+:${PATH}}";

fi;

#

# Process -h/${#} > 1. Set and cd into ${MIDIPIX_PATH} from either

# ${1} or `native,' prepended w/ ${PWD}.

if [ "x${1}" = "x-h" ]\

|| [ ${#} -gt 1 ]; then

	echo "usage: $0 [-h] [path]";

	echo "path: absolute or relative Cygwin pathname to Midipix root, e.g. minipix or native.";

	exit 0;

fi;

MIDIPIX_PATH="${1:-native}";

if [ "${1#/}" = "${1}" ]; then

	MIDIPIX_PATH="${PWD}/${MIDIPIX_PATH}";

fi;

cd ${MIDIPIX_PATH} || exit 1;

#

# Log variables and backup the last libpsxscl.log to libpsxscl.last.

# Launch chroot(1)ed bash(1) inside ntctty and mintty. Obtain and

# log the PID of the ntctty process for convenience.

printf "%-35s: %s\n" "Absolute Midipix pathname" "${MIDIPIX_PATH}";

if [ -f libpsxscl.log ]; then

	echo Found libpsxscl.log, copying to libpsxscl.last.

	if ! cp -p -- libpsxscl.log libpsxscl.last; then

		echo "(cp(1) returned ${?}, ignored.)";

	fi;

fi;

if [ "$(uname -o)" = "Msys" ]; then

	# MingW workaround (via Elieux.)

	export MSYS2_ARG_CONV_EXCL="*";

fi;

mintty -h always -s 120,80 -e /bin/sh -c "

	set -o errexit;

	env PATH=${MIDIPIX_PATH}/lib		\

	bin/ntctty.exe -e			\

		bin/chroot .			\

		/bin/env PATH=/bin:/lib bash" &

sleep ${SLEEP_DELAY:=0.25};

printf "%-35s: %s\n" "ntctty PID" "$(ps -W | awk '$NF ~ /ntctty\.exe$/{print $1}')";

# vim:filetype=sh