build.xml

<project name="ArithmeticGen" default="jar" basedir=".">
  <property name="src" location="." />
  <property name="build" location="build" />
  <property name="processing" location="build/processing" />
  <property name="lib" location="build/lib" />
  <property name="data" location="data" />

  <target name="compile">
    <exec dir="${src}" executable="processing-java">
      <arg line='--sketch="${src}" --output="${processing}" --force --build' />
    </exec>
  </target>

  <target name="jar" depends="compile">
    <jar destfile="${build}/Main.jar" basedir="${processing}">
      <fileset dir="${data}" includes="**" />
      <zipgroupfileset dir="${lib}" includes="*.jar" />
      <manifest>
        <attribute name="DependencyFinder" value="main" />
        <attribute name="Main-Class" value="Snap" />
      </manifest>
    </jar>
  </target>

</project>