feat(analytics): Add Analytics

- Add Baidu analytics & Google analytics
- Close #75

_config.yml

@@ -145,6 +145,11 @@ search:
     use: google
     swiftype_key:
 
+# Analytics Systems
+analytics:
+    baidu_id: 
+    google_id: 
+
 # Leancloud Views
 leancloud:
     enable: false

layout/_partial/head.ejs

@@ -86,7 +86,7 @@
 
     <%- css("css/highlight/" + theme.reading.code_highlight ) %>
 
-    <!-- UC Browser Compatible-->
+    <!-- UC Browser Compatible -->
     <script>
         var agent = navigator.userAgent.toLowerCase();
         if(agent.indexOf('ucbrowser')>0) {
@@ -95,6 +95,29 @@
         }
     </script>
 
+    <% if(theme.analytics.baidu_id) { %>
+    <!-- Baidu Analytics -->
+    <script>
+        var _hmt = _hmt || [];
+        (function() {var hm = document.createElement("script");
+        hm.src = "https://hm.baidu.com/hm.js?<%= theme.analytics.baidu_id %>";
+        var s = document.getElementsByTagName("script")[0];
+        s.parentNode.insertBefore(hm, s);
+        })();
+    </script>
+    <% } %>
+
+    <% if(theme.analytics.google_id) { %>
+    <!-- Google Analytics -->
+    <script>
+        (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+        (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+        m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+        })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
+        ga('create', '<%= theme.analytics.google_id %>', 'auto');ga('send', 'pageview');
+    </script>
+    <% } %>
+
     <!-- Custom Head -->
     <% if (site.data.head) { %>
         <% for (var i in site.data.head) { %>