FROM scratch as base
ENV VERSION=3.9.0
ENV SRC_HASH=d75edf5eb324da20d53570a6a6f87f51e606eee8384925cd66a90611140844c7
ENV SRC_FILE=flit-${VERSION}.tar.gz
ENV SRC_SITE=https://files.pythonhosted.org/packages/source/f/flit/${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 ${SRC_FILE}
WORKDIR flit-${VERSION}/flit_core
RUN <<-EOF
	set -eu
    rm -rf flit_core/vendor
    rm -rf flit_core/tests
	sitedir="$(python3 -c 'import site;print(site.getsitepackages()[0])')"
	mkdir -p "/rootfs/${sitedir}"
	cp -a flit_core "/rootfs/$sitedir"
    find /rootfs | grep -E "(/__pycache__$|\.pyc$|\.pyo$)" | xargs rm -rf
	find /rootfs -exec touch -hcd "@0" "{}" +
EOF

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