FROM "ubuntu:18.04"
LABEL maintainer="Julien Cabillot <dockerimages@cabillot.eu>"

RUN export DEBIAN_FRONTEND="noninteractive" && \
    export BUILD_PACKAGES="ruby-dev libxml2-dev" && \
    export RUNTIME_PACKAGES="ruby" && \
    apt-get -qq update && \
    apt-get -qq --yes install ${BUILD_PACKAGES} ${RUNTIME_PACKAGES} && \
    gem install foodcritic && \
    apt-get -qq --yes remove --purge ${BUILD_PACKAGES} unzip zip fonts-lato javascript-common libjs-jquery  && \
    apt-get -qq --yes autoremove --purge && \
    apt-get -qq --yes clean all && \
    rm -rf "/usr/share/doc/"* \
           "/usr/src/"* \
           "/var/cache/"* \
           "/var/lib/apt/lists/"* \
           "/var/log/"{apt/*,dpkg.log} \
           "/tmp/"*

WORKDIR "/data"

ENTRYPOINT [ "/usr/local/bin/foodcritic" ]