build.xml

<project name="Puzzle"  basedir=".">
    <property name="build" value="build"/>
    <property name="yui-compressor-jar" value="lib/yuicompressor/yuicompressor-2.4.7.jar" />

    <target name="check-yui-compressor">
        <available file="${yui-compressor-jar}" property="yuicompressor.present"/>
    </target>

    <target name="combine" depends="check-yui-compressor" if="yuicompressor.present">
        <mkdir dir="${build}"/>
        <concat destfile="${build}\combined.js" append="true">
            <fileset dir=".">
                <include name="*.js" />
            </fileset>
        </concat>
    </target>

    <target name="minify" depends="combine">
        <java jar="${yui-compressor-jar}" fork="true">
            <arg line="${build}/combined.js -o ${build}/casse-tete.min.js"/>
        </java>
        <delete file="${build}/combined.js"/>
    </target>

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