cje-production/scripts/addToComposite.xml

<?xml version="1.0" encoding="UTF-8"?>

<project
    default="addToComposite"
    basedir=".">
    <target name="addToComposite">
        <fail unless="repodir" message="repodir must be passed in to this script" />
        <fail unless="complocation" message="complocation must be passed in to this script" />
        <echo message="Adding child (complocation) to composite (repodir)" />
        <echo message="    repodir: ${repodir}" />
        <echo message="    complocation: ${complocation}" />
        <p2.composite.repository>
            <repository
                location="file://${repodir}"
                name="The Eclipse Project repository" />
            <add>
                <repository location="${complocation}" />
            </add>
        </p2.composite.repository>
    </target>
</project>