anchor.diff:  RUN curl -fSL https://github.com/justjanne/powerline-go/releases/download/v$POWERLINE_VERSION/powerline-go-linux-amd64 -o /usr/local/bin/powerline-go \
    && chmod +x /usr/local/bin/powerline-go
   
  -RUN mkdir -p $HOME/.bash \
  - && curl -fSL https://raw.githubusercontent.com/subchen/dev-box/master/powerline-go/config/powerline-go.bash -o $HOME/.bash/powerline-go.bash \
  - && echo ". $HOME/.bash/powerline-go.bash" >> $HOME/.bashrc
  +RUN mkdir -p /root/.bash \
  + && curl -fSL https://raw.githubusercontent.com/subchen/dev-box/master/powerline-go/config/powerline-go.bash -o /root/.bash/powerline-go.bash \
  + && echo ". /root/.bash/powerline-go.bash" >> /root/.bashrc
   
   ################################################################
   RUN yum install -y openssh-server openssh-clients \
  
positive.code:  && rm -rf maven.tar.gz \
   && ln -s $MAVEN_HOME/bin/mvn /usr/bin/mvn
  
  VOLUME $HOME/.m2
  
  ################################################################
  ENV NODE_VERSION 10.15.3
  
negative.code:  && rm -f node.tar.gz
  
  RUN npm install -g yarn \
   && rm -rf /root/.npm
  
  RUN yarn global add mocha istanbul nyc spec-xunit-file js-beautify eslint \
   && rm -rf /usr/local/share/.cache/yarn
  