Adds Matomo (aka Piwik) integration (#310)

* adds Matomo (aka Pwiki) integration

* adds tracking code in header

_config.yml

@@ -101,9 +101,8 @@ share-links-active:
 # Remove this if you don't want a link in the footer
 url-pretty: "MyWebsite.com"  # eg. "deanattali.com/beautiful-jekyll"
 
-# --- Misc --- #
-# Fill in your Disqus shortname (NOT the userid) if you want to support Disqus comments
-#disqus: ""
+# --- Web Statistics Section --- #
+# ...Beautiful Jekyll integrates with Google Analytics and Matomo(aka Piwik)
 
 # Fill in your Google Analytics ID to track your website using GA
 #google_analytics: ""
@@ -111,6 +110,21 @@ url-pretty: "MyWebsite.com"  # eg. "deanattali.com/beautiful-jekyll"
 # Google Tag Manager ID
 #gtm: ""
 
+# Matomo (aka Piwik) Web statistics
+# Uncomment this Matomo options to enable tacking:
+# - Provide a valid site id given by your Matomo instance.
+# - Enter the Matomo URI without the protocoll.
+# - Enable/ Disable the Opt-Out feature for users. This will ad a Do-Not-Track option in the footer section.
+
+#  matomo:
+#    site_id: "9"
+#    uri: "demo.wiki.pro"
+#    opt-out: true
+
+# --- Misc --- #
+# Fill in your Disqus shortname (NOT the userid) if you want to support Disqus comments
+#disqus: ""
+
 # Facebook App ID
 # fb_app_id: ""
 

_includes/footer.html

@@ -32,6 +32,13 @@
        • 
       <a href="{{ site.url }}">{{ site.url-pretty }}</a>
       {% endif %}
+
+      {% if site.matomo %}
+      &nbsp;&bull;&nbsp;
+        {% if site.matomo.opt-out %}
+          <a href="http://{{- site.matomo.uri -}}/index.php?module=CoreAdminHome&action=optOut" target="_blank" class="text_muted">Do-not-Track</a>
+        {% endif %}
+      {% endif%}
       </p>
           <!-- Please don't remove this, keep my open source work credited :) -->
     <p class="theme-by text-muted">

_includes/head.html

@@ -117,4 +117,8 @@
   <meta name="twitter:image" content="{{ site.url }}{{ site.avatar }}" />
   {% endif %}
 
+  {% if site.matomo %}
+  {% include matomo.html %}
+  {% endif %}
+
 </head>

_includes/matomo.html

@@ -0,0 +1,17 @@
+{% if site.matomo %}
+  <!-- Matomo -->
+  <script type="text/javascript">
+    var _paq = _paq || [];
+    /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+    _paq.push(['trackPageView']);
+    _paq.push(['enableLinkTracking']);
+    (function() {
+      var u="//{{- site.matomo.uri -}}/";
+      _paq.push(['setTrackerUrl', u+'piwik.php']);
+      _paq.push(['setSiteId', '{{- site.matomo.site_id -}}']);
+      var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+      g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'piwik.js'; s.parentNode.insertBefore(g,s);
+    })();
+  </script>
+  <!-- End Piwik Code -->
+{% endif %}