Cleanup, remove the PRODUCTION flag (#37882)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/37882

After some progressive changes, we can finally remove the PRODUCTION flag from the codebase.

## Changelog:
[iOS][Removed] - Remove PRODUCTION flag from iOS build logic

Reviewed By: cortinico, dmytrorykun

Differential Revision: D46726208

fbshipit-source-id: 407268779be8de32c5a6c15ba220a60b7cb9ced7

.circleci/config.yml

@@ -886,10 +886,6 @@ jobs:
           command: |
             cd /tmp/$PROJECT_NAME/ios
 
-            if [[ << parameters.flavor >> == "Release" ]]; then
-              export PRODUCTION=1
-            fi
-
             if [[ << parameters.architecture >> == "NewArch" ]]; then
               export RCT_NEW_ARCH_ENABLED=1
             fi

packages/react-native/ReactCommon/hermes/React-hermes.podspec

@@ -5,8 +5,6 @@
 
 require "json"
 
-# Whether Hermes is built for Release or Debug is determined by the PRODUCTION envvar.
-
 # package.json
 package = JSON.parse(File.read(File.join(__dir__, "..", "..", "package.json")))
 version = package['version']

packages/react-native/scripts/cocoapods/__tests__/flipper-test.rb

@@ -23,6 +23,7 @@ class FlipperTests < Test::Unit::TestCase
         # Assert
         assert_equal($podInvocationCount, 1)
         assert_equal($podInvocation['React-Core/DevSupport'][:path], "../../" )
+        assert_equal($podInvocation['React-Core/DevSupport'][:configurations], ["Debug"] )
     end
 
     # ======================= #

packages/react-native/scripts/cocoapods/flipper.rb

@@ -19,10 +19,9 @@ $flipper_default_versions = {
 # This function installs the `React-Core/DevSupport` subpods
 # when the dependencies are installed for a non production app.
 #
-# @parameter production: a boolean that indicates whether we are in production or not.
 # @parameter pathToReactNative: the path to the React Native installation
-def install_flipper_dependencies(pathToReactNative)
-    pod 'React-Core/DevSupport', :path => "#{pathToReactNative}/"
+def install_flipper_dependencies(pathToReactNative, configurations: ["Debug"])
+    pod 'React-Core/DevSupport', :path => "#{pathToReactNative}/", :configurations => configurations
 end
 
 

packages/react-native/scripts/react_native_pods.rb

@@ -57,7 +57,7 @@ end
 # - path: path to react_native installation.
 # - fabric_enabled: whether fabric should be enabled or not.
 # - new_arch_enabled: whether the new architecture should be enabled or not.
-# - production: whether the dependencies must be installed to target a Debug or a Release build.
+# - :production [DEPRECATED] whether the dependencies must be installed to target a Debug or a Release build.
 # - hermes_enabled: whether Hermes should be enabled or not.
 # - flipper_configuration: The configuration to use for flipper.
 # - app_path: path to the React Native app. Required by the New Architecture.
@@ -67,7 +67,7 @@ def use_react_native! (
   path: "../node_modules/react-native",
   fabric_enabled: false,
   new_arch_enabled: ENV['RCT_NEW_ARCH_ENABLED'] == '1',
-  production: ENV['PRODUCTION'] == '1',
+  production: false, # deprecated
   hermes_enabled: ENV['USE_HERMES'] && ENV['USE_HERMES'] == '0' ? false : true,
   flipper_configuration: FlipperConfiguration.disabled,
   app_path: '..',
@@ -164,12 +164,9 @@ def use_react_native! (
     build_codegen!(prefix, relative_installation_root)
   end
 
-  # CocoaPods `configurations` option ensures that the target is copied only for the specified configurations,
-  # but those dependencies are still built.
-  # Flipper doesn't currently compile for release https://github.com/facebook/react-native/issues/33764
-  # Setting the production flag to true when build for production make sure that we don't install Flipper in the app in the first place.
-  if flipper_configuration.flipper_enabled && !production
-    install_flipper_dependencies(prefix)
+  # Flipper now build in Release mode but it is not linked to the Release binary (as specified by the Configuration option)
+  if flipper_configuration.flipper_enabled
+    install_flipper_dependencies(prefix, :configurations => flipper_configuration.configurations)
     use_flipper_pods(flipper_configuration.versions, :configurations => flipper_configuration.configurations)
   end
 

packages/rn-tester/Podfile

@@ -38,7 +38,7 @@ def pods(target_name, options = {}, use_flipper: !IN_CI && !USE_FRAMEWORKS)
     flipper_configuration: use_flipper ? FlipperConfiguration.enabled : FlipperConfiguration.disabled,
     app_path: "#{Dir.pwd}",
     config_file_dir: "#{Dir.pwd}/node_modules",
-    production: !ENV['PRODUCTION'].nil?,
+    production: false, #deprecated
     ios_folder: '.',
   )
   pod 'ReactCommon-Samples', :path => "#{@prefix_path}/ReactCommon/react/nativemodule/samples"