<?xml version="1.0" encoding="UTF-8"?>
<project name="YourProject" default="composer">
  <target name="composer" depends="clean" description="Installing dependencies">
    <exec executable="curl" failonerror="true">
      <arg value="-O" />
      <arg value="http://getcomposer.org/composer.phar" />
    </exec>
    <exec executable="php" failonerror="true">
      <arg value="composer.phar" />
      <arg value="install" />
      <arg value="-d" />
      <arg value="workspace" />
    </exec>
  </target>

  <target name="clean" description="Cleanup build artifacts">
    <delete dir="${basedir}/vendor"/>
    <delete file="${basedir}/composer.phar"/>
    <delete file="${basedir}/composer.lock"/>
  </target>
</project>