first stab at supporting Rollup (#130)

src/rollup.ts

@@ -0,0 +1,44 @@
+import { locations, dev } from './config';
+
+export default {
+	dev: dev(),
+
+	client: {
+		input: () => {
+			return `${locations.app()}/client.js`
+		},
+
+		output: () => {
+			return {
+				dir: `${locations.dest()}/client`,
+				format: 'esm'
+			};
+		}
+	},
+
+	server: {
+		input: () => {
+			return `${locations.app()}/server.js`
+		},
+
+		output: () => {
+			return {
+				dir: locations.dest(),
+				format: 'cjs'
+			};
+		}
+	},
+
+	serviceworker: {
+		input: () => {
+			return `${locations.app()}/service-worker.js`;
+		},
+
+		output: () => {
+			return {
+				dir: locations.dest(),
+				format: 'iife'
+			}
+		}
+	}
+};