rat.xml

<?xml version="1.0" encoding="UTF-8"?>
<project name="rat" xmlns:rat="antlib:org.apache.rat.anttasks"
        xmlns:if="ant:if" xmlns="antlib:org.apache.tools.ant">
	<property environment="env" />
	<condition property="support.dir" value="${env.SUPPORT_DIR}" else="${user.dir}/support">
		<isset property="env.SUPPORT_DIR" />
	</condition>
    <target name="rat">
        <rat:report reportFile="${user.dir}/RAT_report.txt">
            <fileset dir="${user.dir}" defaultexcludes="yes">
            	<exclude name="RAT_report.txt" />
            	<excludesfile name="${user.dir}/.ratexcludes" />
            	<excludesfile name="${support.dir}/rat.excludes" />
			</fileset>
        </rat:report>
        <fail message="RAT_report.txt not generated">
            <condition>
                <not>
                    <resourcecount count="1">
                        <fileset dir="${user.dir}" includes="RAT_report.txt" />
                    </resourcecount>
                </not>
            </condition>
        </fail>
        <loadfile property="report" srcfile="${user.dir}/RAT_report.txt">
            <filterchain>
                <tokenfilter>
                    <filetokenizer />
                    <replaceregex replace="" flags="s"
                        pattern="\s*Printing headers for text files without a valid license header.*" />
                </tokenfilter>
            </filterchain>
        </loadfile>
        <condition property="problems">
            <not>
                <contains string="${report}"
                    substring="&#10;0 Unknown Licenses" />
            </not>
        </condition>
        <echo if:set="problems" message="${report}" />
        <fail message="Unknown Licenses found">
            <condition>
                <not>
                    <contains string="${report}"
                        substring="&#10;0 Unknown Licenses" />
                </not>
            </condition>
        </fail>
    </target>
</project>