feat: add script target

Author: atlj

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

@@ -12,6 +12,7 @@ import buildModule from './targets/module';
 import buildTypescript from './targets/typescript';
 import buildCodegen from './targets/codegen';
 import type { Options, Report, Target } from './types';
+import runScript from './targets/script';
 
 type ArgName = 'target';
 
@@ -584,6 +585,15 @@ async function buildTarget(
         report,
       });
       break;
+    case 'script':
+      await runScript({
+        options: targetOptions,
+        source: path.resolve(root, source),
+        output: path.resolve(root, output, 'typescript'),
+        report,
+        root,
+      })
+      break;
     default:
       logger.exit(`Invalid target ${kleur.blue(targetName)}.`);
   }

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

@@ -0,0 +1,47 @@
+import kleur from 'kleur';
+import type { Input } from '../types';
+import { spawn } from '../utils/spawn';
+import dedent from 'dedent';
+
+type Options = Input & {
+  options?: {
+    run?: string;
+    cwd?: string;
+  }
+};
+
+export default async function runScript({
+  options,
+  root,
+  report
+}: Options) {
+  if (options?.run === undefined) {
+    report.error(
+      dedent(
+        `No runnable provided with the script target.
+         Example: ${kleur.green('{["script", { run: "yarn generateTypes" }}')}`
+      )
+    )
+    process.exit(1)
+  }
+
+  const [scriptBinary, ...scriptParams] = options.run.split(" ");
+  if (scriptBinary === undefined) {
+    report.error(
+      "No runnable provided with the script target."
+    )
+    process.exit(1)
+  }
+
+  const cwd = options?.cwd ?? root
+
+  report.info(
+    `Running ${kleur.blue(options.run)} `
+  );
+
+  await spawn(scriptBinary, scriptParams, {
+    cwd,
+  })
+
+  report.success(`Ran ${kleur.blue(options.run)} succesfully`)
+}

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

@@ -13,7 +13,7 @@ export type Input = {
   report: Report;
 };
 
-export type Target = 'commonjs' | 'module' | 'typescript' | 'codegen';
+export type Target = 'commonjs' | 'module' | 'typescript' | 'codegen' | 'script';
 
 export type Options = {
   source?: string;