FROM scratch AS base
ARG ARCH=x86_64
ENV VERSION=1.13
ENV SRC_HASH=7454eb6935db17c6655576c2e1b0fabefd38b4d0936e0f87f48cd062ce91a057
ENV SRC_FILE=gzip-${VERSION}.tar.xz
ENV SRC_SITE=https://ftp.gnu.org/gnu/gzip/${SRC_FILE}

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

FROM fetch AS build
COPY --from=stagex/busybox . /
COPY --from=stagex/binutils . /
COPY --from=stagex/musl . /
COPY --from=stagex/make . /
COPY --from=stagex/gcc . /
RUN tar -xf ${SRC_FILE}
WORKDIR gzip-${VERSION}
ENV FORCE_UNSAFE_CONFIGURE=1
RUN --network=none <<-EOF
	set -ex
	./configure \
		--build=${ARCH}-linux-musl \
		--host=${ARCH}-linux-musl \
		--target=${ARCH}-linux-musl \
		--prefix=/usr \
		--mandir=/usr/share/man \
        --infodir=/usr/share/info
	make -j "$(nproc)"
EOF

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

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