packager: enable @flow in react-packager/index.js

Reviewed By: cpojer

Differential Revision: D4377411

fbshipit-source-id: 300d239d8e2818f0488549feafc98fd3451e452d

react-packager/index.js

@@ -5,74 +5,11 @@
  * 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.
+ *
+ * @flow
  */
+
 'use strict';
 
 require('../../setupBabel')();
-
-const debug = require('debug');
-const Logger = require('./src/Logger');
-
-exports.createServer = createServer;
-exports.Logger = Logger;
-
-exports.buildBundle = function(options, bundleOptions) {
-  var server = createNonPersistentServer(options);
-  return server.buildBundle(bundleOptions)
-    .then(p => {
-      server.end();
-      return p;
-    });
-};
-
-exports.getOrderedDependencyPaths = function(options, bundleOptions) {
-  var server = createNonPersistentServer(options);
-  return server.getOrderedDependencyPaths(bundleOptions)
-    .then(function(paths) {
-      server.end();
-      return paths;
-    });
-};
-
-function enableDebug() {
-  // react-packager logs debug messages using the 'debug' npm package, and uses
-  // the following prefix throughout.
-  // To enable debugging, we need to set our pattern or append it to any
-  // existing pre-configured pattern to avoid disabling logging for
-  // other packages
-  var debugPattern = 'RNP:*';
-  var existingPattern = debug.load();
-  if (existingPattern) {
-    debugPattern += ',' + existingPattern;
-  }
-  debug.enable(debugPattern);
-}
-
-function createServer(options) {
-  // the debug module is configured globally, we need to enable debugging
-  // *before* requiring any packages that use `debug` for logging
-  if (options.verbose) {
-    enableDebug();
-  }
-
-  options = Object.assign({}, options);
-  delete options.verbose;
-  if (options.reporter == null) {
-    // It's unsound to set-up the reporter here, but this allows backward
-    // compatibility.
-    var TerminalReporter = require('./src/lib/TerminalReporter');
-    options.reporter = new TerminalReporter();
-  }
-  var Server = require('./src/Server');
-  return new Server(options);
-}
-
-function createNonPersistentServer(options) {
-  if (options.reporter == null) {
-    // It's unsound to set-up the reporter here, but this allows backward
-    // compatibility.
-    options.reporter = require('./src/lib/reporting').nullReporter;
-  }
-  options.watch = !options.nonPersistent;
-  return createServer(options);
-}
+module.exports = require('./react-packager');

react-packager/react-packager.js

@@ -0,0 +1,91 @@
+/**
+ * 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.
+ *
+ * @flow
+ */
+
+'use strict';
+
+const Logger = require('./src/Logger');
+
+const debug = require('debug');
+
+import type {Reporter} from './src/lib/reporting';
+
+exports.createServer = createServer;
+exports.Logger = Logger;
+
+type Options = {
+  reporter?: Reporter,
+  watch?: boolean,
+  nonPersistent: boolean,
+};
+
+exports.buildBundle = function(options: Options, bundleOptions: {}) {
+  var server = createNonPersistentServer(options);
+  return server.buildBundle(bundleOptions)
+    .then(p => {
+      server.end();
+      return p;
+    });
+};
+
+exports.getOrderedDependencyPaths = function(options: Options, bundleOptions: {}) {
+  var server = createNonPersistentServer(options);
+  return server.getOrderedDependencyPaths(bundleOptions)
+    .then(function(paths) {
+      server.end();
+      return paths;
+    });
+};
+
+function enableDebug() {
+  // react-packager logs debug messages using the 'debug' npm package, and uses
+  // the following prefix throughout.
+  // To enable debugging, we need to set our pattern or append it to any
+  // existing pre-configured pattern to avoid disabling logging for
+  // other packages
+  var debugPattern = 'RNP:*';
+  var existingPattern = debug.load();
+  if (existingPattern) {
+    debugPattern += ',' + existingPattern;
+  }
+  debug.enable(debugPattern);
+}
+
+function createServer(options: Options) {
+  // the debug module is configured globally, we need to enable debugging
+  // *before* requiring any packages that use `debug` for logging
+  if (options.verbose) {
+    enableDebug();
+  }
+
+  const serverOptions = Object.assign({}, options);
+  delete serverOptions.verbose;
+  if (serverOptions.reporter == null) {
+    // It's unsound to set-up the reporter here, but this allows backward
+    // compatibility.
+    var TerminalReporter = require('./src/lib/TerminalReporter');
+    serverOptions.reporter = new TerminalReporter();
+  }
+  var Server = require('./src/Server');
+  return new Server(serverOptions);
+}
+
+function createNonPersistentServer(options: Options) {
+  const serverOptions = {
+    // It's unsound to set-up the reporter here,
+    // but this allows backward compatibility.
+    reporter: options.reporter == null
+      ? require('./src/lib/reporting').nullReporter
+      : options.reporter,
+    ...options,
+    watch: !options.nonPersistent,
+  };
+  return createServer(serverOptions);
+}