Disable Flow on Packager

Reviewed By: frantic

Differential Revision: D2870105

fb-gh-sync-id: c95db83e40b3558c53614b08240a5361c14e0e6c

Libraries/JavaScriptAppEngine/Initialization/InitializeJavaScriptAppEngine.js

@@ -96,13 +96,6 @@ function setUpErrorHandler() {
   ErrorUtils.setGlobalHandler(handleError);
 }
 
-function setUpFlowChecker() {
-  if (__DEV__) {
-    var checkFlowAtRuntime = require('checkFlowAtRuntime');
-    checkFlowAtRuntime();
-  }
-}
-
 /**
  * Sets up a set of window environment wrappers that ensure that the
  * BatchedBridge is flushed after each tick. In both the case of the
@@ -219,7 +212,6 @@ setUpMapAndSet();
 setUpProduct();
 setUpWebSockets();
 setUpProfile();
-setUpFlowChecker();
 setUpNumber();
 setUpDevTools();
 

Libraries/JavaScriptAppEngine/Initialization/checkFlowAtRuntime.js

@@ -1,59 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @providesModule checkFlowAtRuntime
- *
- */
-'use strict';
-
-function checkFlowAtRuntime() {
-  var url = getPackagerURL();
-  if (!url) {
-    return;
-  }
-  fetch(url + 'flow/')
-    .then(response => response.json())
-    .then(response => {
-      if (response.silentError) {
-        return;
-      }
-      throw {
-        message: response.message,
-        stack: response.errors.map(err => {
-          return {
-            ...err,
-            methodName: err.description,
-            file: err.filename,
-          };
-        }),
-      };
-    },
-    () => {
-    //if fetch fails, silently give up
-    })
-    .done();
-}
-
-function getPackagerURL() {
-  var NativeModules = require('NativeModules');
-  var scriptURL = (NativeModules
-    && NativeModules.SourceCode
-    && NativeModules.SourceCode.scriptURL)
-    || '';
-
-  // extract the url of the packager from the whole scriptURL
-  // we match until the first / after http(s)://
-  // i.e. http://www.mypackger.com/debug/my/bundle -> http://www.mypackger.com/
-  return getFirstOrNull(scriptURL.match(/^https?:\/\/[^/]+\//));
-}
-
-function getFirstOrNull(ar) {
-  return ar ? ar[0] : null;
-}
-
-module.exports = checkFlowAtRuntime;