FROM alpine:3.14 AS stage
ARG PLATFORMS="@@@PLATFORMS@@@"
ARG TOOLKIT_VER="@@@TOOLKIT_VER@@@"

# Copy downloaded toolkits
ADD cache /cache
# Extract toolkits
RUN for V in ${PLATFORMS}; do \
      echo "${V}" | while IFS=':' read PLATFORM KVER; do \
        echo "Extracting ds.${PLATFORM}-${TOOLKIT_VER}.dev.txz" && \
        mkdir "/opt/${PLATFORM}" && \
        tar -xaf "/cache/ds.${PLATFORM}-${TOOLKIT_VER}.dev.txz" -C "/opt/${PLATFORM}" --strip-components=10 \
          "usr/local/x86_64-pc-linux-gnu/x86_64-pc-linux-gnu/sys-root/usr/lib/modules/DSM-7.0/build" && \
        echo -e "${PLATFORM}\t${KVER}" >> /opt/platforms; \
      done; \
    done

# Final image
FROM debian:8-slim
ENV SHELL=/bin/bash \
    ARCH=x86_64

RUN apt update --yes && \
    apt install --yes --no-install-recommends --no-install-suggests \
      build-essential nano make && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

COPY --from=stage /opt /opt
COPY files/ /

WORKDIR /input
VOLUME /input /output

ENTRYPOINT ["/opt/do.sh"]