feat(bob): add ignore pattern to config

README.md

@@ -137,6 +137,20 @@ The options can be specified in the `package.json` file under the `react-native-
 
 The name of the folder with the source code which should be compiled. The folder should include an `index` file.
 
+#### `exclude`
+
+Glob pattern to be used while filtering the unnecessary files. Defaults to `'**/{__tests__,__fixtures__,__mocks__}/**'` if you don't specify it.
+
+> This option only works with `commonjs` and `module` targets. To exclude files while building `typescript`, please see [the tsconfig exclude field](https://www.typescriptlang.org/tsconfig#exclude).
+
+Example:
+
+```json
+{
+  "exclude": "ignore_me/**"
+}
+```
+
 #### `output`
 
 The name of the folder where the compiled files should be output to. It will contain separate folder for each target.

packages/react-native-builder-bob/src/index.ts

@@ -418,7 +418,7 @@ yargs
             root,
             source: path.resolve(root, source as string),
             output: path.resolve(root, output as string, 'commonjs'),
-            options: targetOptions,
+            options: { ...targetOptions, exclude: options.exclude },
             report,
           });
           break;
@@ -427,7 +427,7 @@ yargs
             root,
             source: path.resolve(root, source as string),
             output: path.resolve(root, output as string, 'module'),
-            options: targetOptions,
+            options: { ...targetOptions, exclude: options.exclude },
             report,
           });
           break;

packages/react-native-builder-bob/src/targets/commonjs.ts

@@ -10,6 +10,7 @@ type Options = Input & {
     configFile?: string | false | null;
     sourceMaps?: boolean;
     copyFlow?: boolean;
+    exclude?: string;
   };
 };
 

packages/react-native-builder-bob/src/targets/module.ts

@@ -10,6 +10,7 @@ type Options = Input & {
     configFile?: string | false | null;
     sourceMaps?: boolean;
     copyFlow?: boolean;
+    exclude?: string;
   };
 };
 

packages/react-native-builder-bob/src/types.ts

@@ -19,4 +19,5 @@ export type Options = {
   source?: string;
   output?: string;
   targets?: (Target | [Target, object])[];
+  exclude?: string;
 };

packages/react-native-builder-bob/src/utils/compile.ts

@@ -11,6 +11,7 @@ type Options = Input & {
   configFile?: string | false | null;
   sourceMaps?: boolean;
   copyFlow?: boolean;
+  exclude?: string;
   modules: 'commonjs' | false;
   field: 'main' | 'module';
 };
@@ -21,6 +22,7 @@ export default async function compile({
   output,
   babelrc = false,
   configFile = false,
+  exclude = '**/{__tests__,__fixtures__,__mocks__}/**',
   modules,
   copyFlow,
   sourceMaps = true,
@@ -31,7 +33,7 @@ export default async function compile({
     cwd: source,
     absolute: true,
     nodir: true,
-    ignore: '**/{__tests__,__fixtures__,__mocks__}/**',
+    ignore: exclude,
   });
 
   report.info(