script to build os/161 source code

compile.sh

#!/bin/bash

#Each statement here is a blocking call, so we don't need explicit sleeping

#Our trusty local variables
ASST=ASST0
INVOKE_PATH=
BASE_PATH=

#how2use
usage() {
	echo -e $0 "<asst#>\n"
}

#At this point, I'm just having fun ;)
#The idea is to be able to place this file anywhere in the tree (hopefully either src or kern) and have it work!
#There's plenty of ways you can fool this function though
#One easy way to break it - multiple 'src' directories
complex_path_finder() {
#       We first go to a path that we can 'trust'
	INVOKE_PATH=`pwd`
	cd ~/

#       This should return some analogous equivalent of ~/src/kern/arch/sys161/startup/start.S
	PATH_TO_CONFARCH=$(find . -name start.S | head -n 1 | sed -e 's/start\.S//g')   #We are now at .../startup/

#       We want to get to src/kern..so..
	cd $PATH_TO_CONFARCH/../../../  #We should be at kern now

#       Store this path
	BASE_PATH=`pwd`

#       Go back to where we were
	cd $INVOKE_PATH
}
configure() {
	cd $BASE_PATH/conf
	./config $ASST
	cd -
}

compile() {
	cd $BASE_PATH/compile/$ASST
	#If any one of these fail, it doesn't make sense to continue..so..
	bmake depend && bmake && bmake install
	cd -
}

make_asst() {
	echo "ASST :" $ASST
	complex_path_finder
	configure
	compile
}


if [ $# -lt 1 ]; then
	echo $0 "Needs arguments"
	usage
else
	echo "running make script"
	if [ "$1" == "asst0" ]; then
		ASST=ASST0
	elif [ "$1" == "asst1" ]; then
		ASST=ASST1
	elif [ "$1" == "asst2" ]; then
		ASST=ASST2
	elif [ "$1" == "asst3" ]; then
		ASST=ASST3
	else
		echo "Unknown asst " $1
		usage
		return
	fi
	make_asst
fi