spring-security/doc/maven.xml

<project
   xmlns:j="jelly:core"
   xmlns:ant="jelly:ant"
   xmlns:util="jelly:util"
   xmlns:maven="jelly:maven"
  >

    <postGoal name="sdocbook:prepare-filesystem">
        <j:set var="unzipped" value="false" />
        <util:available file="${maven.sdocbook.generated.fo}">
            <j:set var="unzipped" value="true" />
            <echo>Using previusly unzipped docbook files</echo>
        </util:available>
        <j:if test="${!unzipped}">
            <!-- unzip docbook files -->
            <ant:unzip dest="${maven.build.dir}"
                src="${pom.getDependencyPath('docbook:docbook-xsl')}"/>
                
            <!-- use a custom fo stylesheet -->
            <move file="${maven.sdocbook.stylesheets.dir}/fo/docbook.xsl"
                tofile="${maven.sdocbook.stylesheets.dir}/fo/docbook-bak.xsl"/>
            <copy file="${maven.sdocbook.src.dir}/styles/fo/docbook.xsl"
                todir="${maven.sdocbook.stylesheets.dir}/fo"/>

            <!-- use a custom html stylesheet -->
            <move file="${maven.sdocbook.stylesheets.dir}/html/docbook.xsl"
                tofile="${maven.sdocbook.stylesheets.dir}/html/docbook-bak.xsl"/>
            <copy file="${maven.sdocbook.src.dir}/styles/html/docbook.xsl"
                todir="${maven.sdocbook.stylesheets.dir}/html"/>

            <copy todir="${maven.sdocbook.stylesheets.dir}">
                <fileset dir="${maven.sdocbook.src.dir}/images"/>
            </copy>
        </j:if>

    </postGoal>

</project>