abstract some data from volunteer call

Author: phette23

_data/conf.yml

@@ -401,6 +401,15 @@ game-night:
 # Volunteer
 ###############
 
+# only shows on the preconference home page template
+# includes incentives text
+volunteer-call:
+  show: true
+  needed_committees:
+    - Budget & Sponsorship
+    - Scholarship
+    - Workshops
+
 volunteer-committee:
   show: true
   url: 'https://wiki.code4lib.org/Code4Lib_2026_Conference_Committees'

_includes/homepage/pre_conference.html

@@ -247,21 +247,26 @@ <h3 class="expo">Volunteering</h3>
                     url-text='Volunteer for Onsite Conference'
                 %}
             {% endif %}
-			<h4>We Need Your Help!</h4>
-			<p>We’re looking for volunteers to join our conference committees. We especially need support in these areas right now:</p>
-			<ul>
-				<li>Budget & Sponsorship</li>
-				<li>Workshops</li>
-				<li>Scholarship</li>
-			</ul>
-			<p><strong>NEW Volunteer Incentive Program!</strong> We recognize that budgets are tight and everyone’s schedules are packed. To show our appreciation, volunteers who engage with one or more conference committees will receive a code for their choice of:</p>
-			<ul>
-				<li>$25 off in-person conference registration, OR</li>
-				<li>One free half-day in-person workshop, OR</li>
-				<li>A free conference t-shirt (for those unable to attend in person)</li>
-			</ul>
-			<p>This offer applies to ALL volunteers — whether you’ve already signed up and are actively engaged, or you’re joining us for the first time!
-			<p>Interested in volunteering? Email <a href="mailto:code4lib@concentra-cms.com" style="text-decoration:underline;">code4lib@concentra-cms.com</a> or sign up directly on the conference wiki: <a href="{{ site.data.conf.volunteer-committee.url }}" style="text-decoration:underline;">{{site.data.conf.volunteer-committee.url}}</a></p>
+            {% if site.data.conf.volunteer-call.show %}
+                <h4>We Need Your Help!</h4>
+                <p>We’re looking for volunteers to join our conference committees.
+                {% if site.data.conf.volunteer-call.needed_committees | size %}
+                We especially need support in these areas right now:
+                <ul>
+                    {% for committee in site.data.conf.volunteer-call.needed_committees %}
+                    <li>{{committee}}</li>
+                    {% endfor %}
+                </ul>
+                {% endif %}</p>
+                <p><strong>NEW Volunteer Incentive Program!</strong> We recognize that budgets are tight and everyone’s schedules are packed. To show our appreciation, volunteers who engage with one or more conference committees will receive a code for their choice of:</p>
+                <ul>
+                    <li>$25 off in-person conference registration, OR</li>
+                    <li>One free half-day in-person workshop, OR</li>
+                    <li>A free conference t-shirt (for those unable to attend in person)</li>
+                </ul>
+                <p>This offer applies to ALL volunteers — whether you’ve already signed up and are actively engaged, or you’re joining us for the first time!
+                <p>Interested in volunteering? Email <a href="mailto:code4lib@concentra-cms.com" style="text-decoration:underline;">code4lib@concentra-cms.com</a> or sign up directly on the conference wiki: <a href="{{ site.data.conf.volunteer-committee.url }}" style="text-decoration:underline;">{{site.data.conf.volunteer-committee.url}}</a></p>
+            {% endif %}
         </div>
     </div>
     {% endif %}