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 <<-EOF
	set -eu
    python setup.py install --root=/rootfs
    find /rootfs | grep -E "(/__pycache__$|\.pyc$|\.pyo$)" | xargs rm -rf
	find /rootfs -exec touch -hcd "@0" "{}" +
EOF

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