Add Depfu dependencies badge (#1537)

lib/all-badge-examples.js

@@ -1263,6 +1263,10 @@ const allBadgeExamples = [
         title: 'bitHound',
         previewUri: '/bithound/code/github/rexxars/sse-channel.svg'
       },
+      {
+        title: 'Depfu',
+        previewUri: '/depfu/depfu/example-ruby.svg'
+      },
       {
         title: 'Hackage-Deps',
         previewUri: '/hackage-deps/v/lens.svg'

server.js

@@ -3038,6 +3038,31 @@ cache(function(data, match, sendBadge, request) {
   });
 }));
 
+// Depfu integration
+camp.route(/^\/depfu\/(.+)\.(svg|png|gif|jpg|json)$/,
+cache(function(data, match, sendBadge, request) {
+  var userRepo = match[1];  // eg, `jekyll/jekyll`.
+  var format = match[2];
+  var url = 'https://depfu.com/github/shields/' + userRepo;
+  var badgeData = getBadgeData('dependencies', data);
+  request(url, function(err, res) {
+    if (err != null) {
+      badgeData.text[1] = 'inaccessible';
+      sendBadge(format, badgeData);
+      return;
+    }
+    try {
+      var data = JSON.parse(res['body']);
+      badgeData.text[1] = data['text'];
+      badgeData.colorscheme = data['colorscheme'];
+      sendBadge(format, badgeData);
+    } catch(e) {
+      badgeData.text[1] = 'invalid';
+      sendBadge(format, badgeData);
+    }
+  });
+}));
+
 // VersionEye integration
 camp.route(/^\/versioneye\/d\/(.+)\.(svg|png|gif|jpg|json)$/,
 cache(function(data, match, sendBadge, request) {

service-tests/depfu.js

@@ -0,0 +1,26 @@
+'use strict';
+
+const Joi = require('joi');
+const ServiceTester = require('./runner/service-tester');
+
+const isDependencyStatus = Joi.string().valid('insecure', 'latest', 'recent', 'stale');
+
+const t = new ServiceTester({ id: 'depfu', title: 'Depfu' });
+module.exports = t;
+
+
+t.create('depfu dependencies (valid)')
+  .get('/depfu/example-ruby.json')
+  .expectJSONTypes(Joi.object().keys({
+    name: 'dependencies',
+    value: isDependencyStatus
+  }));
+
+t.create('depfu dependencies (repo not found)')
+  .get('/pyvesb/emptyrepo.json')
+  .expectJSON({name: 'dependencies', value: 'invalid'});
+
+t.create('depfu dependencies (connection error)')
+  .get('/depfu/example-ruby.json')
+  .networkOff()
+  .expectJSON({name: 'dependencies', value: 'inaccessible'});