Add utils/docker with sample dockerfiles

utils/docker/Dockerfile.make

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+# http://blog.csicar.de/docker/window-manger/2016/05/24/docker-wm.html
+
+# Xephyr :1 -ac -br -screen 1024x768 -resizeable -reset
+# Xephyr :1 -ac -br -screen 1024x768 -screen 1024x768 +xinerama +extension RANDR -resizeable -reset
+# Xephyr :1 -ac -br -screen 1024x768 -screen 1024x768 +extension RANDR -resizeable -reset
+
+# docker build -f ../Dockerfile.notion . -t notion && docker run --rm -it -e DISPLAY=:1 --name notion-test -v /tmp/.X11-unix:/tmp/.X11-unix notion
+# docker build -f ../Dockerfile.notion . -t notion && docker run --rm -it -e DISPLAY=:1 --name notion-test -v /tmp/.X11-unix:/tmp/.X11-unix --entrypoint /bin/bash notion
+# docker exec -it `docker ps --filter "name=notion-test" -q` /bin/bash
+
+FROM ubuntu:18.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+RUN echo 'Acquire::http { Proxy "http://172.17.0.1:3142"; };' >> /etc/apt/apt.conf.d/01proxy
+RUN apt update && apt install -y pkg-config build-essential groff
+
+RUN apt update && apt install -y libx11-dev libxext-dev libsm-dev libxft-dev libxinerama-dev libxrandr-dev gettext x11-utils \
+ xterm x11-xserver-utils wget unzip xserver-xorg-video-dummy
+
+# RUN apt update && apt install -y lua5.1 liblua5.1-dev
+RUN apt update && apt install -y lua5.2 liblua5.2-dev
+# RUN apt update && apt install -y lua5.3 liblua5.3-dev
+
+# https://bugs.launchpad.net/ubuntu/+source/lua-posix/+bug/1752082
+RUN apt update && apt install -y lua-posix \
+ && ln -s /usr/lib/x86_64-linux-gnu/lua/5.2/posix_c.so /usr/lib/x86_64-linux-gnu/lua/5.2/posix.so
+
+# If lua-posix package is not available, use luarocks
+# RUN wget https://luarocks.org/releases/luarocks-3.0.4.tar.gz \
+#  && tar zxpf luarocks-3.0.4.tar.gz \
+#  && cd luarocks-3.0.4 \
+#  && ./configure \
+#  && make build && make install
+# RUN luarocks install luaposix
+
+# Icon branch
+# RUN apt update && apt install -y libcairo2-dev
+
+RUN mkdir /notion
+WORKDIR /notion
+COPY . /notion/
+RUN make
+ENTRYPOINT ["/bin/bash"]

utils/docker/Dockerfile.run

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+FROM notion
+
+ENV DISPLAY=${NOTION_TEST_DISPLAY:-:1.0}
+RUN make install
+ENTRYPOINT ["/usr/local/bin/notion"]

utils/docker/docker-bash.sh

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+#!/usr/bin/env bash
+
+set -e
+
+this_rel=$(dirname ${BASH_SOURCE[0]})
+rel_root=$this_rel/../..
+
+notion_root=$(realpath $rel_root)
+
+docker build -f Dockerfile.make -t notion $notion_root
+docker run --rm -it --name notion-test -v /tmp/.X11-unix:/tmp/.X11-unix notion
+

utils/docker/docker-xephyr.sh

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+#!/usr/bin/env bash
+
+set -e
+
+this_rel=$(dirname ${BASH_SOURCE[0]})
+rel_root=$this_rel/../..
+
+notion_root=$(realpath $rel_root)
+
+docker build -f Dockerfile.make -t notion $notion_root
+docker build -f Dockerfile.run -t notion-run $notion_root
+docker run --rm -it --name notion-test -v /tmp/.X11-unix:/tmp/.X11-unix notion-run
+

utils/docker/start-xephyr.sh

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+../xephyr/start-xephyr.sh