#!/usr/bin/env bash

if [[ -v DEBUG ]]; then
	set -euox pipefail
else
	set -euo pipefail
fi 

umask 022

. version.bash
. flags.bash
. utilities.bash

create_sysroot

bootstrap_builds() {
	for build in binutils gcc linux glibc libstdc++; do
		.  "stage/bootstrap/${build}.bash"
		cd "$PROJDIR"
	done
}

toolchain_builds() {
	for build in m4 ncurses bash coreutils diffutils file findutils gawk grep gzip make patch sed tar xz binutils gcc; do
		.  "stage/toolchain/${build}.bash"
		cd "$PROJDIR"
	done
}

prechroot_builds() {
	for build in setup bison perl python util_linux cleanup; do
		.  "stage/prechroot/${build}.bash"
		cd "$PROJDIR"
	done
}

usage() {
	echo "usage: build.bash <stage> <package>"
	exit 1
}


check_in_run() {
	if [[ $# -ge 1 && $# -le 2 ]]; then 
		case $1 in
			bootstap|toolchain)
				if [ $# -eq 1 ]; then
					"${1}_builds"
				else
					.  "stage/$1/$2.bash"
				fi 
				;;
			prechroot|hroot)
				if [ $# -eq 1 ]; then
					do_mount
					"${1}_builds"
					do_unmount
				else
					do_mount
					.  "stage/$1/$2.bash"
					do_unmount
				fi 
				;;
			*)
				usage
				;;
		esac
	else
		usage
	fi
}

check_in_run "$@"