Use react-native-codegen@0.0.6 in new app template

Summary:
Use pre-built react-native-codegen library from npm in the iOS app template.
Built react-native-codegen from source when used with RNTester.
Published react-native-codegen@0.0.6.

Changelog:
[iOS][Added] - Use react-native-codegen in iOS app template
[Internal] - Bump react-native-codegen: 0.0.6

Reviewed By: fkgozali

Differential Revision: D25128036

fbshipit-source-id: f294c23b9b911aae6f404edc01b62426fb578477

package.json

@@ -27,7 +27,6 @@
     "Libraries",
     "LICENSE",
     "local-cli",
-    "packages/react-native-codegen",
     "React-Core.podspec",
     "react-native.config.js",
     "react.gradle",

packages/react-native-codegen/package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-codegen",
-  "version": "0.0.5",
+  "version": "0.0.6",
   "description": "⚛️ Code generation tools for React Native",
   "homepage": "https://github.com/facebook/react-native/tree/master/packages/react-native-codegen",
   "repository": {

packages/react-native-codegen/scripts/oss/build.sh

@@ -15,7 +15,13 @@ CODEGEN_DIR="$THIS_DIR/../.."
 
 rm -rf "${CODEGEN_DIR:?}/lib" "${CODEGEN_DIR:?}/node_modules"
 
-YARN_BINARY="${YARN_BINARY:-$(command -v yarn)}"
+# Fallback to npm if yarn is not available
+if [ -x "$(command -v yarn)" ]; then
+  YARN_OR_NPM=$(command -v yarn)
+else
+  YARN_OR_NPM=$(command -v npm)
+fi
+YARN_BINARY="${YARN_BINARY:-$YARN_OR_NPM}"
 
 if [[ ${FBSOURCE_ENV:-0} -eq 1 ]]; then
   # Custom FB-specific setup

packages/rn-tester/Podfile

@@ -64,7 +64,9 @@ pre_install do |installer|
   frameworks_pre_install(installer) if ENV['USE_FRAMEWORKS'] == '1'
   if ENV['USE_CODEGEN'] != '0'
     prefix_path = "../.."
-    codegen_pre_install(installer, {path:prefix_path})
+    codegen_path = "../../packages/react-native-codegen"
+    system("./#{codegen_path}/scripts/oss/build.sh") or raise "Could not build react-native-codegen package"
+    codegen_pre_install(installer, {path:prefix_path, codegen_path:codegen_path})
   end
 end
 

packages/rn-tester/Podfile.lock

@@ -528,6 +528,6 @@ SPEC CHECKSUMS:
   Yoga: 69ef0b2bba5387523f793957a9f80dbd61e89631
   YogaKit: f782866e155069a2cca2517aafea43200b01fd5a
 
-PODFILE CHECKSUM: 961e081223f82b7e9208869de4d73534d949ae9e
+PODFILE CHECKSUM: cd671238f92c51cd349a1c778fd089994174b101
 
 COCOAPODS: 1.10.0

scripts/react_native_pods.rb

@@ -111,14 +111,18 @@ def flipper_post_install(installer)
 
 # Pre Install processing for Native Modules
 def codegen_pre_install(installer, options={})
+  # Path to React Native
   prefix = options[:path] ||= "../node_modules/react-native"
-  system("./#{prefix}/packages/react-native-codegen/scripts/oss/build.sh")
 
+  # Path to react-native-codegen
+  codegen_path = options[:codegen_path] ||= "#{prefix}/../react-native-codegen"
+
+  # Handle Core Modules
   Dir.mktmpdir do |dir|
     native_module_spec_name = "FBReactNativeSpec"
     schema_file = dir + "/schema-#{native_module_spec_name}.json"
     srcs_dir = "#{prefix}/Libraries"
-    schema_generated = system("node #{prefix}/packages/react-native-codegen/lib/cli/combine/combine-js-to-schema-cli.js #{schema_file} #{srcs_dir}")
-    specs_generated = system("node #{prefix}/scripts/generate-native-modules-specs-cli.js ios #{schema_file} #{srcs_dir}/#{native_module_spec_name}/#{native_module_spec_name}")
+    schema_generated = system("node #{codegen_path}/lib/cli/combine/combine-js-to-schema-cli.js #{schema_file} #{srcs_dir}") or raise "Could not generate Native Module schema"
+    specs_generated = system("node #{prefix}/scripts/generate-native-modules-specs-cli.js ios #{schema_file} #{srcs_dir}/#{native_module_spec_name}/#{native_module_spec_name}") or raise "Could not generate code for #{native_module_spec_name}"
   end
 end

template/package.json

@@ -21,6 +21,7 @@
     "eslint": "7.12.0",
     "jest": "^25.1.0",
     "metro-react-native-babel-preset": "^0.64.0",
+    "react-native-codegen": "^0.0.6",
     "react-test-renderer": "17.0.1"
   },
   "jest": {