FROM scratch AS base
ENV VERSION=2.16.03
ENV SRC_HASH=1412a1c760bbd05db026b6c0d1657affd6631cd0a63cddb6f73cc6d4aa616148
ENV SRC_FILE=nasm-${VERSION}.tar.xz
ENV SRC_SITE=https://www.nasm.us/pub/nasm/releasebuilds/${VERSION}/${SRC_FILE}

FROM base AS fetch
ADD --checksum=sha256:${SRC_HASH} ${SRC_SITE} .

FROM fetch AS build
COPY --from=stagex/busybox . /
COPY --from=stagex/gcc . /
COPY --from=stagex/binutils . /
COPY --from=stagex/make . /
COPY --from=stagex/musl . /
COPY --from=stagex/perl . /
RUN tar -xf ${SRC_FILE}
WORKDIR /nasm-${VERSION}
RUN --network=none <<-EOF
    set -eux
    ./configure \
        --build=x86_64-linux-musl \
        --host=x86_64-linux-musl \
        --prefix=/usr
    make -j "$(nproc)"
EOF

FROM build AS install
RUN --network=none DESTDIR=/rootfs make install

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