#!/bin/sh -e

# Grub expects Python but it isn't actually needed. Give
# it something fake so that configure passes.
export PYTHON=/bin/true

# Disable the post-python mv calls as a means of disabling
# the Python tooling. The /bin/true above will create a
# blank file, this prevents the blank file from overwriting
# the existing one.
sed -i 's/mv $@.new $@/:/g' grub/Makefile.in

# Strip '-march' from 'CFLAGS' as per advice from upstream.
# Fixes build fails on specific hardware.
CFLAGS=$(printf %s "$CFLAGS" | sed 's/-march=[^ ]*//g')

# Grub is built in a function so the script argument
# needs to be stored.
pkg_dir=$1

build_grub() (
    cp -a grub "grub-${1##*=}"
    cd "grub-${1##*=}"

    ./configure \
        --prefix=/usr \
        --sbindir=/usr/bin \
        --sysconfdir=/etc \
        --disable-werror \
        --disable-nls \
        --disable-grub-mkfont \
        --disable-grub-mount \
        "$@"

    make
    make DESTDIR="$pkg_dir" install
)

build_grub --with-platform=pc
build_grub --with-platform=efi --disable-efiemu

# Install /etc/default/grub (used by grub-mkconfig).
install -Dm0644 grub.default "$1/etc/default/grub"

# Remove gdb debugging files.
(
    cd "$pkg_dir/usr/lib"

    rm -f grub/*/*.module
    rm -f grub/*/*.image
    rm -f grub/*/kernel.exec
    rm -f grub/*/gdb_grub
    rm -f grub/*/gmodule.pl
)