From 0e83f3b0b211aab922c7022fc74596c8340bfd6f Mon Sep 17 00:00:00 2001
From: Thaddee Tyl <thaddee.tyl@gmail.com>
Date: Sun, 23 Aug 2015 17:38:45 +0200
Subject: [PATCH] Number of GitHub commits since a release

Fix #478
---
 server.js | 41 +++++++++++++++++++++++++++++++++++++++++
 try.html  |  4 ++++
 2 files changed, 45 insertions(+)

diff --git a/server.js b/server.js
index a9f810e..b6e5eb7 100644
--- a/server.js
+++ b/server.js
@@ -2478,6 +2478,47 @@ cache(function(data, match, sendBadge, request) {
   });
 }));
 
+// GitHub commits since integration.
+camp.route(/^\/github\/commits-since\/([^\/]+)\/([^\/]+)\/([^\/]+)\.(svg|png|gif|jpg|json)$/,
+cache(function(data, match, sendBadge, request) {
+  var user = match[1];  // eg, SubtitleEdit
+  var repo = match[2];  // eg, subtitleedit
+  var version = match[3];  // eg, 3.4.7
+  var format = match[4];
+  var apiUrl = 'https://api.github.com/repos/' + user + '/' + repo + '/compare/' + version + '...master';
+  // Using our OAuth App secret grants us 5000 req/hour
+  // instead of the standard 60 req/hour.
+  if (serverSecrets) {
+    apiUrl += '?client_id=' + serverSecrets.gh_client_id
+      + '&client_secret=' + serverSecrets.gh_client_secret;
+  }
+  var badgeData = getBadgeData('commits since ' + version, data);
+  if (badgeData.template === 'social') {
+    badgeData.logo = badgeData.logo || logos.github;
+  }
+  // A special User-Agent is required:
+  // http://developer.github.com/v3/#user-agent-required
+  request(apiUrl, { headers: githubHeaders }, function(err, res, buffer) {
+    if (err != null) {
+      badgeData.text[1] = 'inaccessible';
+      sendBadge(format, badgeData);
+      return;
+    }
+    try {
+      if ((+res.headers['x-ratelimit-remaining']) === 0) {
+        return;  // Hope for the best in the cache.
+      }
+      var data = JSON.parse(buffer);
+      badgeData.text[1] = data.ahead_by;
+      badgeData.colorscheme = 'blue';
+      sendBadge(format, badgeData);
+    } catch(e) {
+      badgeData.text[1] = 'none';
+      sendBadge(format, badgeData);
+    }
+  });
+}));
+
 // GitHub release-download-count integration.
 camp.route(/^\/github\/downloads\/([^\/]+)\/([^\/]+)\/([^\/]+)\/([^\/]+)\.(svg|png|gif|jpg|json)$/,
 cache(function(data, match, sendBadge, request) {
diff --git a/try.html b/try.html
index 88ca804..67685c6 100644
--- a/try.html
+++ b/try.html
@@ -406,6 +406,10 @@ Pixel-perfect &nbsp; Retina-ready &nbsp; Fast &nbsp; Consistent &nbsp; Hackable
   <td><img src='/github/release/qubyte/rubidium.svg' alt=''/></td>
   <td><code>https://img.shields.io/github/release/qubyte/rubidium.svg</code></td>
   </tr>
+  <tr><th> GitHub commits: </th>
+  <td><img src='/github/commits-since/SubtitleEdit/subtitleedit/3.4.7.svg' alt=''/></td>
+  <td><code>https://img.shields.io/github/commits-since/SubtitleEdit/subtitleedit/3.4.7.svg</code></td>
+  </tr>
   <tr><th> Chef cookbook: </th>
   <td><img src='/cookbook/v/chef-sugar.svg' alt=''/></td>
   <td><code>https://img.shields.io/cookbook/v/chef-sugar.svg</code></td>