anchor.diff:  RUN wget https://raw.githubusercontent.com/juven/maven-bash-completion/master/bash_completion.bash -O /etc/bash_completion.d/maven
   
   # --------------------------------
  -# Install Pig
  -ENV PIG_VERSION=0.17.0
  -RUN cd /usr/local/ && wget "https://www.apache.org/dyn/closer.lua?action=download&filename=/pig/pig-${PIG_VERSION}/pig-${PIG_VERSION}.tar.gz" -O "pig-${PIG_VERSION}.tar.gz"
  -RUN cd /usr/local/ && tar xzf pig-${PIG_VERSION}.tar.gz
  -ENV PIG_HOME /usr/local/pig-*/
  -ENV PATH ${PIG_HOME}/bin:${PATH}
  -RUN chmod a+rwX -R ${PIG_HOME}/bin
  -
  -# --------------------------------
   # Install shellcheck
  +ENV SHELLCHECK_VERSION=0.8.0
   RUN cd /usr/local/bin && \
  -     wget https://github.com/koalaman/shellcheck/releases/download/stable/shellcheck-stable.linux.x86_64.tar.xz && \
  -     tar xJf shellcheck-stable.linux.x86_64.tar.xz && \
  -     mv shellcheck-stable/shellcheck . && \
  -     rm -rf shellcheck-stable*
  +    wget https://github.com/koalaman/shellcheck/releases/download/v${SHELLCHECK_VERSION}/shellcheck-v${SHELLCHECK_VERSION}.linux.x86_64.tar.xz && \
  +    tar xJf shellcheck-v${SHELLCHECK_VERSION}.linux.x86_64.tar.xz && \
  +    mv shellcheck-v${SHELLCHECK_VERSION}/shellcheck . && \
  +    rm -rf shellcheck-v${SHELLCHECK_VERSION} shellcheck-v${SHELLCHECK_VERSION}.linux.x86_64.tar.xz
   
   # --------------------------------
   # Install Hugo
  -ENV HUGO_VERSION=0.89.0
  +ENV HUGO_VERSION=0.100.1
   RUN cd /usr/local/bin && \
  -     wget https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_${HUGO_VERSION}_Linux-64bit.tar.gz && \
  -     tar xzf hugo_*.tar.gz
  +    wget https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_${HUGO_VERSION}_Linux-64bit.tar.gz && \
  +    tar xzf hugo_${HUGO_VERSION}_Linux-64bit.tar.gz && \
  +    rm -f hugo_${HUGO_VERSION}_Linux-64bit.tar.gz
   
   # --------------------------------
   # Add a welcome message and environment checks.
  
positive.code: 
  # --------------------------------
  # Install Maven
  ENV MAVEN_VERSION=3.8.3
  RUN mkdir -p /usr/local/apache-maven
  RUN cd /usr/local/ && wget "https://www.apache.org/dyn/closer.lua?action=download&filename=/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz" -O "apache-maven-${MAVEN_VERSION}-bin.tar.gz"
  RUN cd /usr/local/ && tar xzf apache-maven-${MAVEN_VERSION}-bin.tar.gz --strip-components 1 -C /usr/local/apache-maven
  
negative.code: # See the License for the specific language governing permissions and
  # limitations under the License.
  #
  FROM ubuntu:20.04
  
  WORKDIR /root
  
  