Bulk update improvements (#1428)

lib/Helpers.js

@@ -456,6 +456,7 @@ class Helpers {
       failed: 0,
       retry: 0,
       successful: 0,
+      noop: 0,
       time: 0,
       bytes: 0,
       aborted: false
@@ -463,6 +464,9 @@ class Helpers {
 
     const p = iterate()
     const helper = {
+      get stats () {
+        return stats
+      },
       then (onFulfilled, onRejected) {
         return p.then(onFulfilled, onRejected)
       },
@@ -692,6 +696,11 @@ class Helpers {
           if (err) return callback(err, null)
           if (body.errors === false) {
             stats.successful += body.items.length
+            for (const item of body.items) {
+              if (item.update && item.update.result === 'noop') {
+                stats.noop++
+              }
+            }
             return callback(null, [])
           }
           const retry = []