anchor.diff:  RUN echo 'deb http://download.fpcomplete.com/ubuntu trusty main' | tee /etc/apt/sources.list.d/fpco.list
   RUN apt-get update && apt-get install stack -y
   COPY src /workspace/haskell/src/
  -# COPY functionaljs.cabal Setup.hs /workspace/haskell/
   COPY functionaljs.cabal Setup.hs LICENSE /workspace/haskell/
  -# COPY stack.yaml functionaljs.cabal Setup.hs LICENSE /workspace/haskell/
   RUN stack init
   RUN stack setup
   # RUN stack build
  
positive.code:   rm sbt-$SBT_VERSION.deb && \
    apt-get update 
  RUN sbt update
  ###############################
  # Install nvm with node and npm
  ###############################
  
negative.code: RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  
  VOLUME /workspace
  
  CMD ["bash"]
  