#
# Docker cross-compiler target
#
# This docker target builds on the debian stretch base image,
# using a prebuilt toolchains for Xtensa cores from:
# https://github.com/foss-xtensa/toolchain/releases
#
FROM docker.io/library/debian:stretch-slim

RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \
    DEBIAN_FRONTEND=noninteractive eatmydata \
    apt-get install -y --no-install-recommends \
        build-essential \
        ca-certificates \
        curl \
        gettext \
        git \
        python3-minimal

ENV CPU_LIST dc232b dc233c de233_fpu dsp3400
ENV TOOLCHAIN_RELEASE 2020.07

RUN for cpu in $CPU_LIST; do \
        curl -#SL http://github.com/foss-xtensa/toolchain/releases/download/$TOOLCHAIN_RELEASE/x86_64-$TOOLCHAIN_RELEASE-xtensa-$cpu-elf.tar.gz \
        | tar -xzC /opt; \
    done

ENV PATH $PATH:/opt/$TOOLCHAIN_RELEASE/xtensa-dc232b-elf/bin:/opt/$TOOLCHAIN_RELEASE/xtensa-dc233c-elf/bin:/opt/$TOOLCHAIN_RELEASE/xtensa-de233_fpu-elf/bin:/opt/$TOOLCHAIN_RELEASE/xtensa-dsp3400-elf/bin
# As a final step configure the user (if env is defined)
ARG USER
ARG UID
RUN if [ "${USER}" ]; then \
  id ${USER} 2>/dev/null || useradd -u ${UID} -U ${USER}; fi