Dockerfile.kerneldoc-gentoo

# Note:
# This will build an image of almost 4 GiB, with the build time
# of a few hours or more (depending on the system performance)!
FROM gentoo/stage3:latest
RUN emerge --sync
# Workaround to build error
#  Hinted at: https://forums.gentoo.org/viewtopic-t-1125304-start-0.html
ENV FEATURES="-ipc-sandbox -network-sandbox -pid-sandbox -sandbox -usersandbox"
RUN echo 'USE="X -gtk -gnome -alsa truetype svg xml png xetex icu fontconfig"' >> /etc/portage/make.conf && \
    echo "media-gfx/imagemagick pango q8" > /etc/portage/package.use/imagemagick && \
    echo "media-gfx/graphviz cairo pdf" > /etc/portage/package.use/graphviz && \
    echo "app-text/texlive-core cjk" > /etc/portage/package.use/texlive-langchinese && \
    echo "app-text/poppler cairo" > /etc/portage/package.use/inkscape
RUN emerge media-gfx/inkscape media-gfx/graphviz media-gfx/imagemagick latexmk \
    media-fonts/dejavu media-fonts/noto-cjk emerge dev-texlive/texlive-xetex \
    dev-texlive/texlive-langchinese && \
    rm -f /var/cache/distfiles/*
# Permit PDF output in Imagemagick's policy
RUN cd /etc/ImageMagick-7 && sed -i 's+policy domain="coder" rights="none" pattern="PDF"+policy domain="coder" rights="read|write" pattern="PDF"+' policy.xml
COPY requirements.txt requirements-latest.txt /opt/
ARG uid=0
ARG gid=0
ARG user=kerneldoc
ARG group=kerneldoc
RUN if [ $uid -ne 0 ] ; then \
    groupadd -g $gid $group ; \
    useradd -u $uid -g $gid -m $user ; \
    fi
USER $uid:$gid
WORKDIR /home/kerneldoc
RUN /usr/bin/python3 -m venv sphinx_2.4.4 && \
    . sphinx_2.4.4/bin/activate && \
    pip install --upgrade pip && \
    pip install -r /opt/requirements.txt && \
    deactivate
RUN /usr/bin/python3 -m venv sphinx_latest && \
    . sphinx_latest/bin/activate && \
    pip install --upgrade pip && \
    pip install -r /opt/requirements-latest.txt && \
    deactivate
VOLUME /work
WORKDIR /work
CMD /bin/bash