External link only for upcoming talks

_presentations/2016-05-17-kotlin-night.md

@@ -4,6 +4,7 @@ layout: presentation
 event: Kotlin Night
 location: San Francisco, CA, USA
 homepage: http://info.jetbrains.com/Kotlin-Night-2016.html
+listing: http://info.jetbrains.com/Kotlin-Night-2016.html
 date: 2016-05-17
 
 type: Technical

_presentations/2016-07-29-360andev.md

@@ -4,6 +4,7 @@ layout: presentation
 event: 360|AnDev
 location: Denver, CO, USA
 homepage: http://360andev.com/
+listing: http://360andev.com/sessions/300-exploring-javas-hidden-costs/
 date: 2016-07-29
 
 type: Technical

presentations.html

@@ -3,9 +3,20 @@
 layout: default
 ---
 
-<ul class="presentation-list list-unstyled">
 {% assign sorted_presentations = (site.presentations | sort: 'date_start' | reverse) %}
+
+<ul class="presentation-list list-unstyled">
+{% for presentation in sorted_presentations %}
+  {% if presentation.date > site.time %}
+  <li class="presentation"><span class="date">{{ presentation.date | date: "%Y-%m-%d" }}&nbsp;</span>&nbsp;{% if presentation.listing %}<a href="{{ presentation.listing }}">⇱ {% endif %}{{ presentation.title }}{% if presentation.listing %}</a>{% endif %}&nbsp;&nbsp;<small>{{ presentation.event }} ({{ presentation.location }})</small></li>
+  {% endif %}
+{% endfor %}
+</ul>
+<hr>
+<ul class="presentation-list list-unstyled">
 {% for presentation in sorted_presentations %}
-  <li class="presentation"><span class="date">{{ presentation.date | date: "%Y-%m-%d" }}&nbsp;</span>&nbsp;<a href="{{ presentation.url }}">{{ presentation.title }}</a>&nbsp;<small>{{ presentation.event }} ({{ presentation.location }})</small></li>
+  {% if presentation.date <= site.time %}
+  <li class="presentation"><span class="date">{{ presentation.date | date: "%Y-%m-%d" }}&nbsp;</span>&nbsp;<a href="{{ presentation.url }}">{{ presentation.title }}</a>&nbsp;&nbsp;<small>{{ presentation.event }} ({{ presentation.location }})</small></li>
+  {% endif %}
 {% endfor %}
 </ul>