anchor.diff:  ###########
   
   RUN apt-get install -y julia
  -RUN julia --eval 'Pkg.add("IJulia")' 
  +RUN julia --eval 'Pkg.add("IJulia")'
   RUN julia --eval 'Pkg.add("Gadfly")'
   
   ##########
  
positive.code: # And some useful libraries:
  RUN apt-get install -y python-matplotlib python-scipy
  
  
  #######
  #  R  #
  #######
  
negative.code: 
  RUN useradd beaker --create-home
  ADD . /home/beaker/src
  ENV HOME /home/beaker
  
  # Run these again. When they ran above, they installed in ~root but we
  # need to find them in ~beaker.  Unfortunately we can't run just once
  # here because in addition to those files, they also run some apt-gets
  # which need to go as root.
  RUN su -m beaker -c "julia --eval 'Pkg.add(\"IJulia\")'"
  RUN su -m beaker -c "julia --eval 'Pkg.add(\"Gadfly\")'"
  
  RUN chown -R beaker:beaker /home/beaker
  RUN su -m beaker -c "cd /home/beaker/src  && gradle build"
  EXPOSE 8800
  WORKDIR /home/beaker/src
  