chore(widget): show domain name instead of full url in links widget

includes/helpers/site.js

@@ -3,12 +3,14 @@
  *
  * @example
 *     <%- is_same_link(url_a, url_b) %>
+*     <%- get_domain(url) %>
 *     <%- post_count() %>
 *     <%- category_count() %>
 *     <%- tag_count() %>
 *     <%- duration() %>
 *     <%- word_count(content) %>
  */
+const URL = require('url').URL;
 const moment = require('moment');
 
 module.exports = function (hexo) {
@@ -23,6 +25,11 @@ module.exports = function (hexo) {
         return santize(this.url_for(a)) == santize(this.url_for(b));
     });
 
+    hexo.extend.helper.register('get_domain', function (link) {
+        const url = new URL(link);
+        return url.hostname;
+    });
+
     hexo.extend.helper.register('post_count', function () {
         return this.site.posts.length;
     });

layout/widget/links.ejs

@@ -14,7 +14,7 @@
                         <span class="level-item"><%= i %></span>
                     </span>
                     <span class="level-right">
-                        <span class="level-item tag"><%- links[i] %></span>
+                        <span class="level-item tag"><%- get_domain(links[i]) %></span>
                     </span>
                 </a>
             </li>