first commit

packages/@n8n/expression-runtime/esbuild.config.js

@@ -0,0 +1,41 @@
+// esbuild configuration for bundling runtime code
+// Runtime code runs inside isolated context (isolate/worker/subprocess)
+// and must be bundled as a self-contained IIFE or ESM module
+
+const esbuild = require('esbuild');
+const path = require('path');
+
+async function build() {
+	const sharedOptions = {
+		entryPoints: [path.join(__dirname, 'src/runtime/index.ts')],
+		bundle: true,
+		minify: true,
+		sourcemap: true,
+		target: 'es2020',
+		platform: 'neutral', // Works in both Node.js and browser
+		mainFields: ['module', 'main'], // Needed for neutral platform to resolve packages
+		external: [], // Bundle everything (lodash, luxon)
+	};
+
+	// IIFE bundle for isolated-vm
+	await esbuild.build({
+		...sharedOptions,
+		format: 'iife',
+		globalName: '__n8nRuntime',
+		outfile: path.join(__dirname, 'dist/bundle/runtime.iife.js'),
+	});
+
+	// ESM bundle for Web Workers
+	await esbuild.build({
+		...sharedOptions,
+		format: 'esm',
+		outfile: path.join(__dirname, 'dist/bundle/runtime.esm.js'),
+	});
+
+	console.log('✅ Runtime bundles created successfully');
+}
+
+build().catch((error) => {
+	console.error('❌ Build failed:', error);
+	process.exit(1);
+});