src/content/templates/archive.gsp

<%include 'header.gsp'%>

	<%include 'menu.gsp'%>
	
	<div class="page-header">
		<h1>Blog Archive</h1>
	</div>
	
	<!--<ul>-->
		<%def last_month=null;%>
		<%published_posts.each {post ->%>
			<%if (last_month) {%>
				<%if (new java.text.SimpleDateFormat("MMMM yyyy", Locale.ENGLISH).format(post.date) != last_month) {%>
					</ul>
					<h4>${new java.text.SimpleDateFormat("MMMM yyyy", Locale.ENGLISH).format(post.date)}</h4>
					<ul>
				<%}%>
			<% } else { %>
				<h4>${new java.text.SimpleDateFormat("MMMM yyyy", Locale.ENGLISH).format(post.date)}</h4>
				<ul>
			<% }%>
			
			<li>${post.date.format("dd")} - <a href="${content.rootpath}${post.uri}">${post.title}</a></li>
			<%last_month = new java.text.SimpleDateFormat("MMMM yyyy", Locale.ENGLISH).format(post.date)%>
		<%}%>
	</ul>
	
<%include "footer.gsp"%>