Added seleniumjar setting for headless Firefox testing.

build.xml

@@ -6,6 +6,7 @@
   <property name="srcdir"   value="${project.basedir}" override="true" />
   <property name="apacheconfdir" value="/etc/apache2/conf.d" />
   <property name="apachectl" value="false" /><!-- set to apachectl path to spin up Apache instance -->
+  <property name="seleniumjar" value="false" /><!-- set to Selenium jar path to spin up Selenium instance -->
   <property name="nodepath" value="" /><!-- set to node.js modules path to use Zombie.js testing -->
   <!-- command for extra cleanup during shutdown; e.g. to change cache ownership after testing w/ Apache so deletion won't fail: -->
   <property name="extra_shutdown_cleanup" value="false" />
@@ -127,6 +128,14 @@
     <php expression="end(explode('/', '${vufindurl}'))" returnProperty="basepath" />
     <exec command="php ${srcdir}/install.php --basepath=/${basepath} --non-interactive" />
 
+    <!-- Activate Selenium (if a path has been provided) -->
+    <if>
+      <istrue value="${seleniumjar}" />
+      <then>
+        <exec command="xvfb-run --server-args=&quot;-screen 0 1024x768x24&quot; java -jar ${seleniumjar} > /dev/null &amp;" />
+      </then>
+    </if>
+
     <!-- Activate Apache (if an apachectl path has been provided) -->
     <if>
       <istrue value="${apachectl}" />
@@ -221,6 +230,15 @@
       </then>
     </if>
 
+    <!-- shut down selenium if necessary -->
+    <if>
+      <istrue value="${seleniumjar}" />
+      <then>
+        <exec command="pkill -f xvfb" />
+        <exec command="pkill -f selenium" />
+      </then>
+    </if>
+
     <!-- delete the configuration, sample index, logs and cache data -->
     <delete dir="${srcdir}/solr/logs" includeemptydirs="true" failonerror="false" />
     <delete dir="${srcdir}/solr/alphabetical_browse" includeemptydirs="true" failonerror="true" />