FROM scratch as base
ENV VERSION=4.9
ENV SRC_HASH=6e226b732e1cd739464ad6862bd1a1aba42d7982922da7a53519631d24975181
ENV SRC_FILE=sed-${VERSION}.tar.xz
ENV SRC_SITE=https://ftp.gnu.org/gnu/sed/${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 . /
RUN tar -xf sed-${VERSION}.tar.xz
WORKDIR sed-${VERSION}
RUN --network=none <<-EOF
	set -eux
	./configure \
		--prefix=/usr; \
	make -j "$(nproc)"
EOF

FROM build as install
RUN make DESTDIR=/rootfs install
RUN find /rootfs -exec touch -hcd "@0" "{}" +

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