anchor.diff:    && rm Gemfile* \
     ;
   
  -ENV PATH="$HOME/node_modules/.bin:$PATH"
  -
   CMD echo "print versions..."\
     && coffee --version \
     && compass --version \
  
positive.code:   ruby-io-console \
    sudo \
    ;
  
  ENV \
    HOME="/root" \
    LC_CTYPE="C.utf8"
  WORKDIR $HOME
  
  # for Ruby gem
  ADD gemrc /etc/
  
negative.code: FROM mhart/alpine-node-auto:0.10
  
  ENV \
    HOME="/root" \
    LC_CTYPE="C.utf8" \
    PATH="$HOME/node_modules/.bin:$PATH"
  WORKDIR $HOME
  
  # curl needed by the steps on Wercker CI
  # ruby, ruby-dev, and ruby-io-console needed by gem
  