FROM scratch as base
ENV VERSION=2.12
ENV SRC_HASH=b30919fa5be280417c17ac561bb1650f60cfb80cc6237fa1e2b6f56154cb9c91
ENV SRC_FILE=grub-${VERSION}.tar.gz
ENV SRC_SITE=https://mirrors.kernel.org/gnu/grub/${SRC_FILE}

FROM base as fetch
ADD --checksum=sha256:${SRC_HASH} ${SRC_SITE} ${SRC_FILE}

FROM fetch as build
COPY --from=stagex/busybox . /
COPY --from=stagex/bison . /
COPY --from=stagex/flex . /
COPY --from=stagex/gcc . /
COPY --from=stagex/binutils . /
COPY --from=stagex/make . /
COPY --from=stagex/gawk . /
COPY --from=stagex/musl . /
COPY --from=stagex/python . /
COPY --from=stagex/m4 . /
COPY --from=stagex/perl . /
COPY --from=stagex/pkgconf . /
COPY --from=stagex/automake . /
COPY --from=stagex/autoconf . /
COPY --from=stagex/gettext . /
COPY --from=stagex/xz . /
COPY --from=stagex/linux-headers . /
RUN tar -xf ${SRC_FILE}
WORKDIR grub-${VERSION}
RUN --network=none <<-EOF
	set -eux
    sh autogen.sh
    touch grub-core/extra_deps.lst
    mkdir build-pc
    cd build-pc
	CLFLAGS="-fno-plt" \
    ../configure \
        --prefix=/usr \
        --sysconfdir=/etc \
        --mandir=/usr/share/man \
        --localstatedir=/var \
        --build=x86_64 \
        --target=x86_64 \
        --host=x86_64 \
        --disable-nls \
        --disable-werror \
        --with-platform=pc
    make
    cd ..
    mkdir build-efi
    cd build-efi
	../configure \
        --prefix=/usr \
        --sysconfdir=/etc \
        --mandir=/usr/share/man \
        --localstatedir=/var \
        --build=x86_64 \
        --target=x86_64 \
        --host=x86_64 \
        --disable-nls \
        --disable-werror \
        --with-platform=efi \
        --disable-efiemu
    make
EOF

FROM build as install
RUN <<-EOF
    cd build-pc
    make DESTDIR=/rootfs install-strip
    cd ..
    cd build-efi
    make DESTDIR=/rootfs install-strip
EOF

FROM stagex/filesystem as package
COPY --from=install /rootfs/. /