Dockerfile

## Emacs, make this -*- mode: sh; -*-

FROM debian:testing

MAINTAINER "Jeff Hemminger" jeff.hemminger@gmail.com

## Set a default user. Available via runtime flag `--user docker`
## Add user to 'staff' group, granting them write privileges to /usr/local/lib/R/site.library
## User should also have & own a home directory (for rstudio or linked volumes to work properly).
RUN useradd docker \
  && mkdir /home/docker \
  && chown docker:docker /home/docker \
  && addgroup docker staff

RUN apt-get update \
  && apt-get install -y --no-install-recommends \
    ed \
    less \
    locales \
    vim-tiny \
    wget \
    ca-certificates \
    fonts-texgyre \
  && rm -rf /var/lib/apt/lists/*

## Configure default locale, see https://github.com/rocker-org/rocker/issues/19
RUN echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen \
  && locale-gen en_US.utf8 \
  && /usr/sbin/update-locale LANG=en_US.UTF-8

ENV LC_ALL en_US.UTF-8
ENV LANG en_US.UTF-8

## Use Debian unstable via pinning -- new style via APT::Default-Release
RUN echo "deb http://http.debian.net/debian sid main" > /etc/apt/sources.list.d/debian-unstable.list \
  && echo 'APT::Default-Release "testing";' > /etc/apt/apt.conf.d/default

RUN apt-get update \
  && apt-get install -t unstable -y --no-install-recommends \
  emacs-nox \
  && rm -rf /tmp/downloaded_packages/ /tmp/*.rds \
  && rm -rf /var/lib/apt/lists/*

CMD ["emacs"]