build.xml

<project name="smr" default="all" basedir=".">
  <property name="src.dir" value="src/"/>
  <property name="build.dir" value="classes"/>
  <property name="docs.dir" value="docs"/>
  <property name="plugin.dir" value="jars"/>

  <!-- 3. Define project CLASSPATH. -->

  <property environment="env"/>
  <path id="project.classpath">
    <fileset dir="${env.SCALA_HOME}/lib/">
      <include name="*.jar"/>
    </fileset>
    <pathelement location="${build.dir}"/>
    <fileset dir="${env.HADOOP_HOME}">
      <include name="*.jar"/>
      <include name="lib/*.jar"/>
    </fileset>
  </path>

  <!-- 4. Define scala compiler command. -->

  <taskdef resource="scala/tools/ant/antlib.xml"/>
  <!-- 5. Compiles sources by using "scalac" command. -->

  <target name="java-silliness">
    <javac srcdir="${src.dir}" destdir="${build.dir}"
      classpathref="project.classpath" >
      <include name="**/*.java"/>
    </javac>
  </target>

  <target name="compile" depends="plugin,java-silliness">
    <mkdir dir="${build.dir}"/>

    <!--
      -->
    <scalac srcdir="${src.dir}" destdir="${build.dir}"
      classpathref="project.classpath" force="changed"
      deprecation="yes" unchecked="yes" 
      addparams="-Xplugin:${plugin.dir}/seroverride.jar -Xshow-phases"
    >
      <include name="**/*.scala"/>
    </scalac>
  </target>
  <target name="docs">
    <mkdir dir="${docs.dir}"/>
    <scaladoc
      srcdir="${src.dir}"
      destdir="${docs.dir}"
      deprecation="yes" unchecked="yes"
      windowtitle="Scala MapReduce Documentation"
      doctitle="&lt;div&gt;Scala MapReduce 0.0.3&lt;/div&gt;" >
      <include  name="**/*.scala"/>
    </scaladoc>
  </target>

  <target name="plugin">
    <mkdir dir="${build.dir}"/>
    <scalac srcdir="${src.dir}" destdir="${build.dir}"
      classpathref="project.classpath" force="changed"
      deprecation="yes" unchecked="yes" 
    >
      <include name="**/plugin/*.scala"/>
    </scalac>
    <mkdir dir="jars"/>
    <jar destfile="jars/seroverride.jar">
      <fileset dir="classes/"
        includes="**/plugin/*.class"
        />
      <fileset dir="misc"/>
    </jar>   
  </target>   

  <target name="libjar" depends="compile">
    <jar destfile="jars/smr.jar">
      <fileset dir="classes"/>
    </jar>
  </target>
        
  <target name="testjar" depends="compile">
    <jar destfile="jars/smr-basic.jar">
      <fileset dir="classes"/>
      <fileset dir="${env.SCALA_HOME}" includes="lib/**.jar"/>
    </jar>
  </target>

  <target name="all" depends="compile,libjar"/>

</project>