pit/libpit/build.xml

<project name="Personal Issue Tracker">
    <property file="project.properties"/>
    <property environment="env"/>

    <target name="init">
        <fail
            unless="env.GROOVY_HOME"
            message="GROOVY_HOME environment variable is not set."/>
        <echo message="GROOVY_HOME: ${env.GROOVY_HOME}"/>
    </target>

    <path id="groovy.libs">
        <fileset dir="${env.GROOVY_HOME}/lib">
            <include name="**/*.jar"/>
        </fileset>
    </path>

    <path id="groovy.cp">
        <path refid="groovy.libs"/>
        <fileset dir="${lib.dir}"/>
    </path>

    <taskdef name="groovyc"
        classname="org.codehaus.groovy.ant.Groovyc"
        classpathref="groovy.libs"/>

    <target name="clean">
        <delete dir="${build.dir}"/>
    </target>

    <target name="compile" depends="init">
        <mkdir dir="${build.dir}/classes"/>
        <groovyc
            srcdir="${src.dir}"
            destdir="${build.dir}/classes"
            classpath="${groovyc.cp}"/>
    </target>

    <target name="build" depends="compile">
        <mkdir dir="${build.dir}/jar"/>
        <jar
            destfile="${build.dir}/jar/${build.jar}"
            basedir="${build.dir}/classes"
            compress="on"/>
    </target>
</project>