anchor.diff:  
   
   
  -FROM python as shellcheck
  -
  -COPY --from=2 /root/.cabal/bin /usr/local/bin
  +FROM python-base as shellcheck-base
  +
  +COPY --from=4 /root/.cabal/bin /usr/local/bin
   RUN apk update && apk add --no-cache ruby ruby-dev # TODO: Do this as another build image
  +ARG quality_gem_version
   RUN gem install --no-ri --no-rdoc pronto-shellcheck
   
  -VOLUME /usr/app
  -WORKDIR /usr/app
  -ENTRYPOINT ["/entrypoint.sh"]
  -CMD ["quality"]
  -
  -
  -
  -
  -
  -FROM shellcheck AS jumbo
  +
  +
  +
  +
  +FROM shellcheck-base as shellcheck
  +VOLUME /usr/app
  +WORKDIR /usr/app
  +ENTRYPOINT ["/entrypoint.sh"]
  +ARG quality_gem_version
  +RUN gem install --no-ri --no-rdoc quality:${quality_gem_version}
  +CMD ["quality"]
  +
  +
  +
  +
  +
  +FROM shellcheck-base AS jumbo-base
   
   # https://github.com/sgerrand/alpine-pkg-glibc
   RUN apk --no-cache add ca-certificates wget && \
  
positive.code:     echo "java -jar `pwd`/${SCALASTYLE_JAR}" --config "/usr/src/scalastyle_config.xml" '${@}' >> /bin/scalastyle && \
      chmod +x /bin/scalastyle
  
  VOLUME /usr/app
  WORKDIR /usr/app
  ENTRYPOINT ["/entrypoint.sh"]
  CMD ["quality"]
  
negative.code:       && \
        echo "Done"
  
  RUN mkdir /usr/quality
  ADD sample-project/Rakefile /usr/quality/Rakefile
  COPY entrypoint.sh /
  
  
  FROM base AS latest
  VOLUME /usr/app
  WORKDIR /usr/app
  ENTRYPOINT ["/entrypoint.sh"]
  ARG quality_gem_version
  RUN gem install --no-ri --no-rdoc quality:${quality_gem_version}
  CMD ["quality"]
  
  
  
  FROM base AS python-base
  #
  # Install flake8 and pycodestyle
  #
  