anchor.diff:  
   USER smv
   WORKDIR /projects
  -ENV PATH=$PATH:$M2_HOME/bin:$SPARK_HOME/bin:$SMV_HOME/tools
  +ENV PATH=$PATH:$M2_HOME/bin:$SPARK_HOME/bin:$SBT_HOME/bin:$SMV_HOME/tools
   
   RUN mkdir $SMV_USER_LIB &&\
       wget http://www-us.apache.org/dist/maven/maven-3/$MVN_VERSION/binaries/apache-maven-$MVN_VERSION-bin.tar.gz &&\
  
positive.code:     tar xzvf spark-$SPARK_VERSION-bin-hadoop$HADOOP_VERSION.tgz &&\
      rm spark-$SPARK_VERSION-bin-hadoop$HADOOP_VERSION.tgz &&\
      mv spark-$SPARK_VERSION-bin-hadoop$HADOOP_VERSION $SPARK_HOME/ &&\
      wget http://github.com/TresAmigosSD/SMV/archive/master.zip &&\
      unzip master.zip &&\
      rm master.zip &&\
  
negative.code:     SPARK_HOME=/home/smv/lib/spark \
      SPARK_VERSION=1.5.2 \
      HADOOP_VERSION=2.6 \
      SBT_HOME=/home/smv/lib/sbt \
      SBT_VERSION=0.13.12 \
      SMV_HOME=/home/smv/lib/SMV \
      MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=128m" \
      MVN_VERSION=3.3.9 \
  