morpheus/stage0

#!/bin/sh
#
# This is the stage0 script, it prepares a basic usable system
# in $root.

set -e -x

. ./prepare-env

if [ $(uname -m) != $arch ]; then
	echo You need an $arch host to build morpheus 1>&2
	exit 1
fi

rm -rf root cross morpheus.log
. ./prepare-root
mkdir -p src cross

# Build musl-gcc
./build cross-scripts/musl

installed_deps=
build_pkg_dep() {
	pkg=$1; deps=$2
	# Build dependencies for package in order
	for d in $deps; do
		install=1
		for i in $installed_deps; do
			if [ $i == $d ]; then
				# If already installed, then skip it
				install=0
				break
			fi
		done
		if [ $install -eq 1 ]; then
			./build cross-scripts/$d
			installed_deps="$installed_deps $d"
		fi
	done
}

build_pkg_deps() {
	pkg=$1
	while read line; do
		if [ $(echo $line | cut -d' ' -f1) != $pkg ]; then
			continue
		fi
		deps=$(echo $line | cut -d' ' -f2-)
		build_pkg_dep "$pkg" "$deps"
		break
	done < DEPS
}

build_pkg() {
	build_pkg_deps $1 && ./build pkgs/$1
}

# Build stage0 packages
pkglist=$(ls pkgs)
for pkg in $pkglist; do
	build_pkg $pkg
done