Add extra parameter to define whether codegen is invoked by lib or app

packages/react-native/react-native.config.js

@@ -84,12 +84,18 @@ const codegenCommand = {
       name: '--outputPath <path>',
       description: 'Path where generated artifacts will be output to.',
     },
+    {
+      name: '--source <string>',
+      description: 'Whether the script is invoked from an `app` or a `library`',
+      default: 'app',
+    },
   ],
   func: (argv, config, args) =>
     require('./scripts/codegen/generate-artifacts-executor').execute(
       args.path,
       args.platform,
       args.outputPath,
+      args.source,
     ),
 };
 

packages/react-native/scripts/codegen/generate-artifacts-executor.js

@@ -971,11 +971,12 @@ SCRIPT`;
  * @parameter projectRoot: the directory with the app source code, where the package.json lives.
  * @parameter baseOutputPath: the base output path for the CodeGen.
  * @parameter targetPlatform: the target platform. Supported values: 'android', 'ios', 'all'.
+ * @parameter source: the source that is invoking codegen. Supported values: 'app', 'library'.
  * @throws If it can't find a config file for react-native.
  * @throws If it can't find a CodeGen configuration in the file.
  * @throws If it can't find a cli for the CodeGen.
  */
-function execute(projectRoot, targetPlatform, baseOutputPath) {
+function execute(projectRoot, targetPlatform, baseOutputPath, source) {
   try {
     codegenLog(`Analyzing ${path.join(projectRoot, 'package.json')}`);
 
@@ -1023,9 +1024,12 @@ function execute(projectRoot, targetPlatform, baseOutputPath) {
         platform,
       );
 
-      generateRCTThirdPartyComponents(libraries, outputPath);
-      generateCustomURLHandlers(libraries, outputPath);
-      generateAppDependencyProvider(outputPath);
+      if (source === 'app') {
+        // These components are only required by apps, not by libraries
+        generateRCTThirdPartyComponents(libraries, outputPath);
+        generateCustomURLHandlers(libraries, outputPath);
+        generateAppDependencyProvider(outputPath);
+      }
       generateReactCodegenPodspec(
         projectRoot,
         pkgJson,

packages/react-native/scripts/generate-codegen-artifacts.js

@@ -25,7 +25,12 @@ const argv = yargs
     alias: 'outputPath',
     description: 'Path where generated artifacts will be output to.',
   })
+  .option('s', {
+    alias: 'source',
+    description: 'Whether the script is invoked from an `app` or a `library`',
+    default: 'app',
+  })
   .usage('Usage: $0 -p [path to app] -t [target platform] -o [output path]')
   .demandOption(['p', 't']).argv;
 
-executor.execute(argv.path, argv.targetPlatform, argv.outputPath);
+executor.execute(argv.path, argv.targetPlatform, argv.outputPath, argv.source);