ant-global.xml

<project name="ant-global" xmlns:ivy="antlib:org.apache.ivy.ant">

  <property name="dev.home"  value="${user.home}"/>
  <property name="ivy.jar.dir" location="${dev.home}/.ant/lib"/>
  <property name="ivy.jar.file" value="${ivy.jar.dir}/ivy-2.3.0.jar"/>
  <property name="ivy.install.version" value="2.3.0"/>
  <property name="build.dir" location="${basedir}/build"/>
  <property name="build.tmp.dir" location="${build.dir}/tmp" />
  <property name="dist.dir" location="${build.dir}/dist" />

  <target name="init-ivy" depends="download-ivy">
    <!-- If ivy is not downloaded yet, try to load ivy here from ivy home. -->
    <path id="ivy.lib.path">
      <fileset dir="${ivy.jar.dir}" includes="*.jar"/>
    </path>
    <taskdef resource="org/apache/ivy/ant/antlib.xml" uri="antlib:org.apache.ivy.ant" classpathref="ivy.lib.path"/>
      <ivy:settings id="dev.settings" file="ivysettings.xml"/>
  </target>
  <target name="download-ivy">
    <mkdir dir="${ivy.jar.dir}"/>
    <!-- download Ivy from web site so that it can be used even without any special installation. -->
    <get src="https://repo1.maven.org/maven2/org/apache/ivy/ivy/${ivy.install.version}/ivy-${ivy.install.version}.jar"
      dest="${ivy.jar.file}" usetimestamp="true"/>
    </target>
</project>