Adds puppet forge (versioning) support.

package.json

@@ -23,7 +23,8 @@
     "es6-promise": "~0.1.1",
     "request": "~2.34.0",
     "redis": "~0.10.1",
-    "camp": "~13.11.9"
+    "camp": "~13.11.9",
+    "semver": "~2.3.0"
   },
   "devDependencies": {
     "ass": "~0.0.4",

server.js

@@ -8,6 +8,7 @@ var fs = require('fs');
 var LruCache = require('./lru-cache.js');
 var badge = require('./badge.js');
 var svg2img = require('./svg-to-img.js');
+var semver = require('semver');
 var serverStartTime = new Date((new Date()).toGMTString());
 
 var validTemplates = ['default', 'flat'];
@@ -962,6 +963,53 @@ cache(function(data, match, sendBadge) {
   });
 }));
 
+// Puppet Forge
+camp.route(/^\/puppetforge\/v\/([^\/]+\/[^\/]+)\.(svg|png|gif|jpg)$/,
+cache(function(data, match, sendBadge) {
+  var userRepo = match[1];
+  var format = match[2];
+  var options = {
+    json: true,
+    uri: 'https://forge.puppetlabs.com/api/v1/releases.json?module=' + userRepo
+  };
+  var badgeData = getBadgeData('puppetforge', data);
+  request(options, function dealWithData(err, res, json) {
+    if (err != null || (json.length !== undefined && json.length === 0)) {
+      badgeData.text[1] = 'inaccessible';
+      sendBadge(format, badgeData);
+      return
+    }
+    try {
+      var unstable = function(ver) { return /-[0-9A-Za-z.-]+(?:\+[0-9A-Za-z.-]+)?$/.test(ver); };
+      var releases = json[userRepo];
+      if (releases.length == 0) {
+        badgeData.text[1] = 'none';
+        badgeData.colorscheme = 'lightgrey';
+        sendBadge(format, badgeData);
+        return;
+      }
+      var version = releases[0].version;
+      for (var i = 0; i < releases.length; i++) {
+        var current = releases[i].version;
+        if (semver.gt(current, version)) {
+          version = current;
+        }
+      }
+      if (unstable(version)) {
+        badgeData.colorscheme = "yellow";
+      } else {
+        badgeData.colorscheme = "blue";
+      }
+      badgeData.text[1] = "v" + version;
+      sendBadge(format, badgeData);
+
+    } catch(e) {
+      badgeData.text[1] = 'invalid';
+      sendBadge(format, badgeData);
+    }
+  });
+}));
+
 // Any badge.
 camp.route(/^\/(:|badge\/)(([^-]|--)+)-(([^-]|--)+)-(([^-]|--)+)\.(svg|png|gif|jpg)$/,
 function(data, match, end, ask) {

try.html

@@ -207,6 +207,10 @@ <h3> Version </h3>
   <td><img src='/nuget/v/Nuget.Core.svg' alt=''/></td>
   <td><code>http://img.shields.io/nuget/v/Nuget.Core.svg</code></td>
   </tr>
+  <tr><th> Puppet Forge: </th>
+  <td><img src='/puppetforge/v/vStone/percona.svg' alt=''/></td>
+  <td><code>http://img.shields.io/puppetforge/v/vStone/percona.svg</code></td>
+  </tr>
 </tbody></table>
 
 <h3> Flat Style </h3>