install gulp to process code

node_modules/gulp-cli/lib/shared/array-find.js

@@ -0,0 +1,19 @@
+'use strict';
+
+function arrayFind(arr, fn) {
+  if (!Array.isArray(arr)) {
+    return;
+  }
+
+  var idx = 0;
+  while (idx < arr.length) {
+    var result = fn(arr[idx]);
+    if (result) {
+      // TODO: This is wrong in Liftoff
+      return arr[idx];
+    }
+    idx++;
+  }
+}
+
+module.exports = arrayFind;