Add latest update time.

Partially addresses #9.

lib/views/body.js

@@ -1,5 +1,7 @@
 "use strict";
 
+var dateFormat = require('dateformat');
+
 const COMMENT_INTRO = `<!--
     This comment and the below content is programatically generated.`;
 const COMMENT_BODY = `    You may add a comma-separated list of anchors you'd like a
@@ -24,7 +26,12 @@ class ViewComment {
 
     render(pr) {
         let body = pr.body.split(COMMENT_INTRO)[0].trim();
-        return `${body}\n\n\n${ COMMENT_INTRO }\n${ COMMENT_BODY }\n${ this.getAnchors(pr).join(", ")}\n${ COMMENT_OUTRO }\n***\n${ this.content(pr) }`
+        return `${body}\n\n\n${ COMMENT_INTRO }\n${ COMMENT_BODY }\n${ this.getAnchors(pr).join(", ") }\n${ COMMENT_OUTRO }\n***\n${ this.content(pr) }`
+    }
+
+    getDate(date) {
+        date = dateFormat(date, "UTC:mmm d, yyyy, h:MM TT");
+        return `Last updated on ${ date } GMT`;
     }
 
     getAnchors(pr) {
@@ -39,9 +46,17 @@ class ViewComment {
         let anchors = this.getAnchors(pr);
         let anchor = anchors.length == 1 ? anchors[0] : "";
         let size = Math.floor(40 / anchors.length);
-        return `[Preview](${ this.preview_url(pr) }${anchor}) ${ this.displayAnchors(this.preview_url(pr), anchors, size) }| [Diff](${ pr.diff.cache_url })`;
+
+        let title = this.getDate(new Date());
+        let preview = this.displayLink("Preview", this.preview_url(pr) + anchor, title);
+        let diff = this.displayLink("Diff", pr.diff.cache_url, title);
+        return `${ preview } ${ this.displayAnchors(this.preview_url(pr), anchors, size) }| ${ diff }`;
     }
 
+    displayLink(content, href, title) {
+        return `<a href="${ href }" title="${title}">${ content }</a>`;
+    }
+
     displayAnchors(url, anchors, size) {
         if (!anchors || anchors.length < 2) return "";
         if (typeof size == "number") {

package.json

@@ -26,6 +26,7 @@
   "dependencies": {
     "aws-sdk": "^2.9.0",
     "body-parser": "1.16.1",
+    "dateformat": "^3.0.2",
     "emu-algify": "^2.2.0",
     "entities": "1.1.1",
     "express": "4.14.0",

test/views/body.js

@@ -0,0 +1,9 @@
+"use strict";
+const assert = require("assert"),
+    BodyView = require("../../lib/views/body");
+suite("Body view", function() {
+    test("Test getDate", function() {
+        let v = new BodyView();
+        assert.equal(v.getDate(new Date(0)), "Last updated on Jan 1, 1970, 12:00 AM GMT");
+    });
+});