Add ReactNativeDependencies.podspec and replace script. (#49812)

Summary:
There are two environment variables that is related to ReactNativeDependencies:
- `RCT_USE_DEP_PREBUILD `: If set to 1, ReactNativeDependencies will be built from source.
- `RCT_DEPS_VERSION`: If set to 1, it will override the version of ReactNativeDependencies to be used.
bypass-github-export-checks
## Changelog:

[INTERNAL] - Introduced functions to configure ReactNativeDependencies in Cocoapods

Pull Request resolved: https://github.com/facebook/react-native/pull/49812

Test Plan:
✅ Run Rn-Tester and  verify that it works as expected both building deps from source and using prebuilt tarballs
✅ Add third-party library (react-native-reanimated) and perform the same tests to verify that it works with the changed podspec and utilities

Reviewed By: javache

Differential Revision: D70968672

Pulled By: cipolleschi

fbshipit-source-id: bb93e763bd71cec7314565b5a751b226735b404e

packages/react-native/third-party-podspecs/ReactNativeDependencies.podspec

@@ -0,0 +1,75 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+require "json"
+
+begin
+  react_native_path = File.dirname(Pod::Executable.execute_command('node', ['-p',
+    'require.resolve(
+    "react-native",
+    {paths: [process.argv[1]]},
+    )', __dir__]).strip
+  )
+rescue => e
+  # Fallback to the parent directory if the above command fails (e.g when building locally in OOT Platform)
+  react_native_path = File.join(__dir__, "..", "..")
+end
+
+# package.json
+package = JSON.parse(File.read(File.join(react_native_path, "package.json")))
+version = package['version']
+
+source = ReactNativeDependenciesUtils.podspec_source_download_prebuild_release_tarball()
+
+Pod::Spec.new do |spec|
+  spec.name                 = 'ReactNativeDependencies'
+  spec.version              = version
+  spec.summary              = 'React Native Dependencies'
+  spec.description          = 'ReactNativeDependencies is a podspec that contains all the third-party dependencies of React Native.'
+  spec.homepage             = 'https://github.com/facebook/react-native'
+  spec.license              = package['license']
+  spec.authors              = 'meta'
+  spec.platforms            = min_supported_versions
+  spec.user_target_xcconfig = {
+    'WARNING_CFLAGS' => '-Wno-comma -Wno-shorten-64-to-32',
+  }
+
+  spec.source             = source
+  spec.preserve_paths       = '**/*.*'
+  spec.vendored_frameworks  = 'framework/packages/react-native/third-party/ReactNativeDependencies.xcframework'
+  spec.header_mappings_dir  = 'Headers'
+  spec.source_files         = 'Headers/**/*.{h,hpp}'
+  spec.prepare_command    = <<-CMD
+    mkdir -p Headers
+    rsync -a react-native/third-party/ReactNativeDependencies.xcframework/ios-arm64/ReactNativeDependencies.framework/Headers/ Headers
+    mkdir -p framework/packages/react-native
+    rsync -a --remove-source-files react-native/ framework/packages/react-native/
+    find react-native/ -type d -empty -delete
+  CMD
+
+  script_phase = {
+    :name => "[RNDeps] Replace React Native Dependencies for the right configuration, if needed",
+    :execution_position => :before_compile,
+    :script => <<-EOS
+    . "$REACT_NATIVE_PATH/scripts/xcode/with-environment.sh"
+
+    CONFIG="Release"
+    if echo $GCC_PREPROCESSOR_DEFINITIONS | grep -q "DEBUG=1"; then
+      CONFIG="Debug"
+    fi
+
+    "$NODE_BINARY" "$REACT_NATIVE_PATH/third-party-podspecs/replace_dependencies_version.js" -c "$CONFIG" -r "#{version}" -p "$PODS_ROOT"
+    EOS
+  }
+
+  # :always_out_of_date is only available in CocoaPods 1.13.0 and later
+  if Gem::Version.new(Pod::VERSION) >= Gem::Version.new('1.13.0')
+    # always run the script without warning
+    script_phase[:always_out_of_date] = "1"
+  end
+
+  spec.script_phase = script_phase
+
+end

packages/react-native/third-party-podspecs/replace_dependencies_version.js

@@ -0,0 +1,107 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+'use strict';
+
+const {execSync} = require('child_process');
+const fs = require('fs');
+const yargs = require('yargs');
+
+const LAST_BUILD_FILENAME = 'ReactNativeDependencies/.last_build_configuration';
+
+function validateBuildConfiguration(configuration) {
+  if (!['Debug', 'Release'].includes(configuration)) {
+    throw new Error(`Invalid configuration ${configuration}`);
+  }
+}
+
+function validateVersion(version) {
+  if (version == null || version === '') {
+    throw new Error('Version cannot be empty');
+  }
+}
+
+function shouldReplaceRnDepsConfiguration(configuration) {
+  const fileExists = fs.existsSync(LAST_BUILD_FILENAME);
+
+  if (fileExists) {
+    console.log(`Found ${LAST_BUILD_FILENAME} file`);
+    const oldConfiguration = fs.readFileSync(LAST_BUILD_FILENAME).toString();
+    if (oldConfiguration === configuration) {
+      console.log(
+        'Same config of the previous build. No need to replace RNDeps',
+      );
+      return false;
+    }
+  }
+
+  // Assumption: if there is no stored last build, we assume that it was build for debug.
+  if (!fileExists && configuration === 'Debug') {
+    console.log(
+      'No previous build detected, but Debug Configuration. No need to replace RNDeps',
+    );
+    return false;
+  }
+
+  return true;
+}
+
+function replaceRNDepsConfiguration(configuration, version, podsRoot) {
+  const tarballURLPath = `${podsRoot}/ReactNativeDependencies-artifacts/rndeps-ios-${version.toLowerCase()}-${configuration.toLowerCase()}.tar.gz`;
+
+  const finalLocation = 'ReactNativeDependencies/framework';
+  console.log('Preparing the final location', finalLocation);
+  fs.rmSync(finalLocation, {force: true, recursive: true});
+  fs.mkdirSync(finalLocation, {recursive: true});
+
+  console.log('Extracting the tarball', tarballURLPath);
+  execSync(`tar -xf ${tarballURLPath} -C ${finalLocation}`);
+}
+
+function updateLastBuildConfiguration(configuration) {
+  console.log(`Updating ${LAST_BUILD_FILENAME} with ${configuration}`);
+  fs.writeFileSync(LAST_BUILD_FILENAME, configuration);
+}
+
+function main(configuration, version, podsRoot) {
+  validateBuildConfiguration(configuration);
+  validateVersion(version);
+
+  if (!shouldReplaceRnDepsConfiguration(configuration)) {
+    return;
+  }
+
+  replaceRNDepsConfiguration(configuration, version, podsRoot);
+  updateLastBuildConfiguration(configuration);
+  console.log('Done replacing React Native Dependencies');
+}
+
+// This script is executed in the Pods folder, which is usually not synched to Github, so it should be ok
+const argv = yargs
+  .option('c', {
+    alias: 'configuration',
+    description:
+      'Configuration to use to download the right React Native Dependencies version. Allowed values are "Debug" and "Release".',
+  })
+  .option('r', {
+    alias: 'reactNativeVersion',
+    description:
+      'The Version of React Native associated with the React Native Dependencies tarball.',
+  })
+  .option('p', {
+    alias: 'podsRoot',
+    description: 'The path to the Pods root folder',
+  })
+  .usage('Usage: $0 -c Debug -r <version> -p <path/to/react-native>').argv;
+
+const configuration = argv.configuration;
+const version = argv.reactNativeVersion;
+const podsRoot = argv.podsRoot;
+
+main(configuration, version, podsRoot);

packages/rn-tester/RNTesterPods.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict/>
+</plist>