FROM scratch as base
ARG ARCH=x86_64
ENV VERSION=1.20
ENV SRC_HASH=c6030defe6ae172f1687906d7354054c75a6a9130af319d4e73c50a91959c5a6
ENV SRC_FILE=ed-${VERSION}.tar.lz
ENV SRC_SITE=https://ftp.gnu.org/gnu/ed/${SRC_FILE}

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

FROM fetch as build
COPY --from=busybox . /
COPY --from=binutils . /
COPY --from=musl . /
COPY --from=make . /
COPY --from=tar . /
COPY --from=lzip . /
COPY --from=gcc . /
# HACK: figure out why gcc package puts these in the wrong path at install time
COPY --from=gcc /usr/lib64/* /usr/lib/
RUN tar --lzip -xf ${SRC_FILE}
WORKDIR ed-${VERSION}
RUN --network=none <<-EOF
	set -ex
	./configure \
		--build=${ARCH}-linux-musl \
		--host=${ARCH}-linux-musl \
		--target=${ARCH}-linux-musl \
		--prefix=/usr \
		--bindir=/bin \
		--mandir=/usr/share/man
	make -j "$(nproc)"
EOF

FROM build as install
RUN --network=none make DESTDIR="/rootfs" install
RUN find /rootfs -exec touch -hcd "@0" "{}" +

FROM scratch as package
COPY --from=install /rootfs /