feat: add cherry-picking

app/Http/Controllers/TrackerController.php

@@ -42,6 +42,7 @@ class TrackerController extends Controller
         $fromCheckin = $request->input('from', null);
         $toCheckin = $request->input('to', null);
         $forceDownload = $request->input('force', false);
+        $cherryPickedCheckins = explode(',', $request->input('cherrypick', null));
 
         try {
             $tripData = $this->get_trip_data($tripId, $forceDownload);
@@ -73,6 +74,15 @@ class TrackerController extends Controller
             );
         }
 
+        if ($cherryPickedCheckins) {
+            $tripData->checkins = array_filter(
+                $tripData->checkins,
+                function ($checkin) use ($cherryPickedCheckins) {
+                    return in_array($checkin->id, $cherryPickedCheckins);
+                }
+            );
+        }
+
         return view(
             'tracker',
             [