build.xml

<project xmlns:ivy="antlib:org.apache.ivy.ant" name="devclub-simple-java" default="fetch-jars">

    <property name="ivy.version" value="2.2.0"/>

    <target name="fetch-jars" depends="install-ivy">
        <ivy:retrieve pattern="lib/[conf]/[artifact]-[type]-[revision].[ext]" symlink="true"/>
    </target>

    <target name="install-ivy">
        <mkdir dir="lib"/>
        <get src="http://repo1.maven.org/maven2/org/apache/ivy/ivy/${ivy.version}/ivy-${ivy.version}.jar" dest="lib/ivy.jar" usetimestamp="true"/>
        <path id="ivy.lib.path">
            <fileset dir="lib" includes="*.jar"/>
        </path>
        <taskdef resource="org/apache/ivy/ant/antlib.xml" uri="antlib:org.apache.ivy.ant" classpathref="ivy.lib.path"/>
    </target>

</project>