#!/bin/sh
# Tool to build tools to build final system
set -e
umask 022

command -v astronaut >/dev/null 2>&1 || {
    echo 'Can'\''t find astronaut in $PATH' 1>&2
    exit 1
}

if [ ! "$rocket" ]; then
    echo 'Please set the $rocket variable' 1>&2
    exit 1
fi

if [ "$(readlink /tools)" != "$(realpath "$rocket")/tools" ]; then
    echo "Please create a symlink from /tools to $(realpath "$rocket")/tools" 1>&2
    exit 1
fi

# Options for supported shells
if [ "$(basename "$(readlink /bin/sh)")" = "bash" ]; then
    shellopts="+h"
fi

# Know where them satellites are
satellite_dir="$(dirname "$(realpath "$0")")/satellites"

envrun() {
    env -i \
        HOME="$HOME" \
        TERM="$TERM" \
        LC_ALL=C \
        PATH="/tools/bin:$PATH" \
        MAKEFLAGS="$MAKEFLAGS" \
        rocket="$rocket" \
        target="$(uname -m)-rocket-linux-gnu" \
        /bin/sh "$shellopts" "$@"
}

astrobuild() {
    envrun astronaut -i "$rocket" "$satellite_dir/$1.sat"
}

# List of packages to build
mkdir -p "$rocket/tools"
astrobuild "binutils-1"
astrobuild "gcc-1"
astrobuild "linux-api"
astrobuild "glibc"
astrobuild "libstdc"
astrobuild "binutils-2"
astrobuild "gcc-2"
astrobuild "make"
astrobuild "busybox"
astrobuild "astronaut"