Smoothen Flipper iOS integration (#28044)

Summary:
Addresses my feedback [here](#27565 (comment)), [here](#27565 (comment)), and [here](#27565 (comment)).

## Changelog

[iOS] [Changed] - Updated Flipper iOS integration to be included by default in the `Debug` configuration
Pull Request resolved: #28044

Test Plan:
Manually tested that a new application from this template still works and that the Flipper integration works.

<img width="912" alt="Screenshot 2020-02-13 at 02 09 42" src="https://user-images.githubusercontent.com/2320/74391951-eb6fd800-4e05-11ea-9fde-7e0eb42c1ec4.png">

Differential Revision: D19871482

Pulled By: TheSavior

fbshipit-source-id: a805808fdd0c2dfdfe47dd59ffee02c81f3fdfa7

Author: alloy

scripts/autolink-ios.rb

@@ -4,7 +4,6 @@
 # LICENSE file in the root directory of this source tree.
 
 def use_react_native! (options={})
-
   # The prefix to the react-native
   prefix = options[:path] ||= "../node_modules/react-native"
 
@@ -56,5 +55,24 @@ def use_react_native! (options={})
     pod 'React-RCTFabric', :path => "#{prefix}/React"
     pod 'Folly/Fabric', :podspec => "#{prefix}/third-party-podspecs/Folly.podspec"
   end
+end
 
+def add_flipper_pods!
+  version = '~> 0.30.0'
+  pod 'FlipperKit', version, :configuration => 'Debug'
+  pod 'FlipperKit/FlipperKitLayoutPlugin', version, :configuration => 'Debug'
+  pod 'FlipperKit/SKIOSNetworkPlugin', version, :configuration => 'Debug'
+  pod 'FlipperKit/FlipperKitUserDefaultsPlugin', version, :configuration => 'Debug'
+  pod 'FlipperKit/FlipperKitReactPlugin', version, :configuration => 'Debug'
 end
+
+# Post Install processing for Flipper
+def flipper_post_install(installer)
+  installer.pods_project.targets.each do |target|
+    if target.name == 'YogaKit'
+      target.build_configurations.each do |config|
+        config.build_settings['SWIFT_VERSION'] = '4.1'
+      end
+    end
+  end
+end

template/ios/HelloWorld.xcodeproj/project.pbxproj

@@ -495,6 +495,11 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CLANG_ENABLE_MODULES = YES;
 				CURRENT_PROJECT_VERSION = 1;
+				ENABLE_BITCODE = NO;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"$(inherited)",
+					"FB_SONARKIT_ENABLED=1",
+				);
 				INFOPLIST_FILE = HelloWorld/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				OTHER_LDFLAGS = (

template/ios/HelloWorld/AppDelegate.m

@@ -5,21 +5,32 @@
 #import <React/RCTRootView.h>
 
 #if DEBUG
-#ifdef FB_SONARKIT_ENABLED
 #import <FlipperKit/FlipperClient.h>
 #import <FlipperKitLayoutPlugin/FlipperKitLayoutPlugin.h>
 #import <FlipperKitUserDefaultsPlugin/FKUserDefaultsPlugin.h>
 #import <FlipperKitNetworkPlugin/FlipperKitNetworkPlugin.h>
 #import <SKIOSNetworkPlugin/SKIOSNetworkAdapter.h>
 #import <FlipperKitReactPlugin/FlipperKitReactPlugin.h>
-#endif
+
+static void InitializeFlipper(UIApplication *application) {
+  FlipperClient *client = [FlipperClient sharedClient];
+  SKDescriptorMapper *layoutDescriptorMapper = [[SKDescriptorMapper alloc] initWithDefaults];
+  [client addPlugin:[[FlipperKitLayoutPlugin alloc] initWithRootNode:application withDescriptorMapper:layoutDescriptorMapper]];
+  [client addPlugin:[[FKUserDefaultsPlugin alloc] initWithSuiteName:nil]];
+  [client addPlugin:[FlipperKitReactPlugin new]];
+  [client addPlugin:[[FlipperKitNetworkPlugin alloc] initWithNetworkAdapter:[SKIOSNetworkAdapter new]]];
+  [client start];
+}
 #endif
 
 @implementation AppDelegate
 
 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 {
-  [AppDelegate initializeFlipper:application];
+#if DEBUG
+  InitializeFlipper(application);
+#endif
+
   RCTBridge *bridge = [[RCTBridge alloc] initWithDelegate:self launchOptions:launchOptions];
   RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
                                                    moduleName:@"HelloWorld"
@@ -44,19 +55,4 @@ - (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
 #endif
 }
 
-+ (void) initializeFlipper:(UIApplication *)application
-{
-#if DEBUG
-#ifdef FB_SONARKIT_ENABLED
-  FlipperClient *client = [FlipperClient sharedClient];
-  SKDescriptorMapper *layoutDescriptorMapper = [[SKDescriptorMapper alloc] initWithDefaults];
-  [client addPlugin: [[FlipperKitLayoutPlugin alloc] initWithRootNode: application withDescriptorMapper: layoutDescriptorMapper]];
-  [client addPlugin: [[FKUserDefaultsPlugin alloc] initWithSuiteName:nil]];
-  [client addPlugin: [FlipperKitReactPlugin new]];
-  [client addPlugin: [[FlipperKitNetworkPlugin alloc] initWithNetworkAdapter:[SKIOSNetworkAdapter new]]];
-  [client start];
-#endif
-#endif
-}
-
 @end

template/ios/Podfile

@@ -2,42 +2,6 @@ platform :ios, '10.0'
 require_relative '../node_modules/react-native/scripts/autolink-ios'
 require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'
 
-# Add Flipper Pods
-def flipper_pods()
-  flipperkit_version = '0.30.0'
-  pod 'FlipperKit', '~>' + flipperkit_version, :configuration => 'Debug'
-  pod 'FlipperKit/FlipperKitLayoutPlugin', '~>' + flipperkit_version, :configuration => 'Debug'
-  pod 'FlipperKit/SKIOSNetworkPlugin', '~>' + flipperkit_version, :configuration => 'Debug'
-  pod 'FlipperKit/FlipperKitUserDefaultsPlugin', '~>' + flipperkit_version, :configuration => 'Debug'
-  pod 'FlipperKit/FlipperKitReactPlugin', '~>' + flipperkit_version, :configuration => 'Debug'
-end
-
-# Post Install processing for Flipper
-def flipper_post_install(installer)
-  installer.pods_project.targets.each do |target|
-    if target.name == 'YogaKit'
-      target.build_configurations.each do |config|
-        config.build_settings['SWIFT_VERSION'] = '4.1'
-      end
-    end
-  end
-  file_name = Dir.glob("*.xcodeproj")[0]
-  app_project = Xcodeproj::Project.open(file_name)
-  app_project.native_targets.each do |target|
-    target.build_configurations.each do |config|
-      cflags = config.build_settings['OTHER_CFLAGS'] || '$(inherited) '
-      unless cflags.include? '-DFB_SONARKIT_ENABLED=1'
-        puts 'Adding -DFB_SONARKIT_ENABLED=1 in OTHER_CFLAGS...'
-        cflags << '-DFB_SONARKIT_ENABLED=1'
-      end
-      config.build_settings['OTHER_CFLAGS'] = cflags
-    end
-    app_project.save
-  end
-  installer.pods_project.save
-end
-
-
 target 'HelloWorld' do
   # Pods for HelloWorld
   use_react_native!
@@ -49,10 +13,11 @@ target 'HelloWorld' do
 
   use_native_modules!
 
-  # For enabling Flipper.
-  # Note that if you have use_frameworks!, flipper will not work.
-  # Disable these lines if you are using use_frameworks!
-  flipper_pods()
+  # Enables Flipper.
+  #
+  # Note that if you have use_frameworks! enabled, Flipper will not work and
+  # you should disable these next few lines.
+  add_flipper_pods!
   post_install do |installer|
     flipper_post_install(installer)
   end