#!/bin/sh

checkAndRm () {
	lines=`find . -mindepth 1 -maxdepth 1 -name "_*" -print | sed 's/\.\///'`
	for line in $lines; do
		find "${line}" \( -type f -o -type l \) -print |
		while read l; do
			to=`echo $l | sed "s/^${line}\///"`
			if [ -h "${to}" ]; then
				rm -f "${to}"
			fi
		done
	done
}

none() {
	checkAndRm || exit 2

	rm -rf *.exe *.so loader blackbox blackboxc dev0
#		System/Code/Kernel.ocf System/Sym/Kernel.osf Code/Kernel.ocf Sym/Kernel.osf \
#		System/Code/Init.ocf System/Sym/Init.osf Code/Init.ocf Sym/Init.osf \
#		System/Code/Config.ocf System/Sym/Config.osf Code/Config.ocf Sym/Config.osf \
#		Host/Code/*.ocf Host/Sym/*.osf Lin/Code/*.ocf Lin/Sym/*.osf
}

mklinks () {
	find "${1}" -mindepth ${2} -maxdepth ${2} \( -type f -o -type l \) -print |
	while read l; do
		to=`echo $l | sed "s/^${line}\///"`
		mkdir -p `dirname "${to}"`
		ln -s "${3}"/${l} "${to}"
	done
}

dolinks () {
	lines1=`find . -mindepth 1 -maxdepth 1 -name "_*${1}*_" -print | sed 's/\.\///'`
	lines2=`find . -mindepth 1 -maxdepth 1 -name "__*${2}*" -print | sed 's/\.\///'`
	lines3=`find . -mindepth 1 -maxdepth 1 -name "_*"${1}"*_*${2}*" -print | sed 's/\.\///'`
	for line in  $lines1 $lines2 $lines3; do
		find "${line}" -mindepth 1 -maxdepth 1 \( -type f -o -type l \) -print |
		while read l; do
			ln -s $l
		done
		mklinks "${line}" 2 ..
		mklinks "${line}" 3 ../..
		mklinks "${line}" 4 ../../..
	done
}

if [ $# -eq 1 ]; then
	if [ "${1}" = "none" ]; then
		none
	else
		none || exit 2
		dolinks "${1}" Interp
	fi
elif [ $# -eq 2 ]; then
	none || exit 2
	dolinks "${1}" "${2}"
else
	echo "usage: `basename $0` ( none | OS [ configuration ] )"
	echo "	OS: Linux | OpenBSD | FreeBSD | Windows"
	echo "	configuration: GUI | Interp"
	exit 1
fi