FROM scratch AS base
ENV VERSION=0.7.0
ENV SRC_HASH=1aaadcd69338252ade4f7ec1265e1a19184bf916d84c9b7df095f423948cb89f
ENV SRC_FILE=build-${VERSION}.tar.gz
ENV SRC_SITE=https://files.pythonhosted.org/packages/source/b/build/${SRC_FILE}

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

FROM fetch AS install
COPY --from=stagex/busybox . /
COPY --from=stagex/musl . /
COPY --from=stagex/python . /
COPY --from=stagex/py-setuptools . /
COPY --from=stagex/zlib . /
RUN tar -xzf ${SRC_FILE}
WORKDIR /build-${VERSION}
RUN --network=none <<-EOF
	set -eu
    python setup.py install --root=/rootfs
    find /rootfs | grep -E "(/__pycache__$|\.pyc$|\.pyo$)" | xargs rm -rf
EOF

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