diff --git a/lib/object.js b/lib/object.js
index 0e979778..e9977124 100644
--- a/lib/object.js
+++ b/lib/object.js
@@ -379,6 +379,24 @@ var out = {
             options.type = "nodebuffer";
         }
         return this.generateInternalStream(options).toNodejsStream(onUpdate);
-    }
+    },
+
+    /**
+     * Return all files since root in the form {relativePath, file}
+     * @returns {Array} An array of items files 
+     */
+     getFilesSinceRoot: function(){
+        var result = [], filename, relativePath, file;
+        // ignore warning about unwanted properties because this.files is a null prototype object
+        /* eslint-disable-next-line guard-for-in */
+        for (filename in this.files) {
+            file = this.files[filename];
+            relativePath = filename.slice(this.root.length, filename.length);
+            if (relativePath && filename.slice(0, this.root.length) === this.root) { // the file is in the current root
+                result.push({relativePath:relativePath, file:file})
+            }
+        }
+        return result;
+    },
 };
 module.exports = out;