Simplify handling of MRs updates;

index.js

@@ -37,8 +37,6 @@ var client = new irc.Client(config.server, config.nick, {
     retryDelay: 120000
 });
 
-var mergeRequests = {};
-
 var app = express();
 
 app.use(bodyParser.json()); // for parsing application/json
@@ -137,24 +135,9 @@ var handlers = {
         var url = request.url;
         var state = request.state;
 
-        if (typeof mergeRequests[id] === 'undefined') {
-            mergeRequests[id] = {
-                state: state
-            };
-
-            // Stay silent if the merge request state is open and we didn't
-            // know it before.
-            if (state === "opened") {
-                return;
-            }
-        } else {
-            var formerState = mergeRequests[id].state;
-            mergeRequests[id].state = state;
-
-            // Abort if the state hasn't changed.
-            if (state === formerState) {
-                return;
-            }
+        // Don't trigger the hook on mr's updates.
+        if (request.action === 'update') {
+            return;
         }
 
         shortenURL(url, function(shortUrl) {