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#!/bin/sh -f
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# Prepend /bin to ${PATH} if it does not contain it.
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case "${PATH}" in
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/bin:*|*:/bin:*|*:/bin) ;;
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*)	export PATH="/bin${PATH:+:${PATH}}"; ;;
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esac;
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#
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# Process -h/${#} > 1. Set and cd into ${MIDIPIX_PATH} from either
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# ${1} or `native,' prepended w/ ${PWD}.
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if [ "x${1}" = "x-h" ]\
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|| [ ${#} -gt 1 ]; then
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	echo "usage: $0 [-h] [path]";
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	echo "path: absolute or relative Cygwin pathname to Midipix root, e.g. minipix or native.";
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	exit 0;
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fi;
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MIDIPIX_PATH="${1:-native}";
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if [ "${1#/}" = "${1}" ]; then
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	MIDIPIX_PATH="${PWD}/${MIDIPIX_PATH}";
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fi;
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cd ${MIDIPIX_PATH} || exit 1;
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#
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# Log variables and backup the last libpsxscl.log to libpsxscl.last.
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# Launch chroot(1)ed bash(1) inside ntctty and mintty. Obtain and
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# log the PID of the ntctty process for convenience.
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printf "%-35s: %s\n" "Absolute Midipix pathname" "${MIDIPIX_PATH}";
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if [ -f libpsxscl.log ]; then
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	echo Found libpsxscl.log, copying to libpsxscl.last.
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	if ! cp -p -- libpsxscl.log libpsxscl.last; then
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		echo "(cp(1) returned ${?}, ignored.)";
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	fi;
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fi;
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if [ "$(uname -o)" = "Msys" ]; then
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	# MingW workaround (via Elieux.)
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	export MSYS2_ARG_CONV_EXCL="*";
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fi;
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mintty -d -h always -s 120,80 -e /bin/sh -c "
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	set -o errexit;
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	stty raw -echo;
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	env PATH=${MIDIPIX_PATH}/lib		\
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	bin/ntctty.exe -p -e			\
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		bin/chroot .			\
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		/bin/env PATH=/bin:/lib bash -l" &
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sleep ${SLEEP_DELAY:=0.25};
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printf "%-35s: %s\n" "ntctty PID" "$(ps -W | awk '$NF ~ /ntctty\.exe$/{print $1}')";
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# vim:filetype=sh