Add rollup

Author: OlehDutchenko

.gitignore

@@ -1,4 +1,4 @@
 /.cache
 /.idea
-/build
+/components
 /node_modules

package-lock.json

@@ -2,11 +2,17 @@
   "name": "react-microbe-ui",
   "version": "0.0.1",
   "description": "microbe-ui for React",
-  "main": "index.js",
+  "main": "components/index.js",
+  "module": "components/index.es.js",
+  "jsnext:main": "components/index.es.js",
   "scripts": {
-    "build": "tsc",
+    "build": "rollup -c",
+    "prepare": "npm run build",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
+  "files": [
+    "components"
+  ],
   "prettier": {
     "arrowParens": "always",
     "bracketSpacing": true,
@@ -31,6 +37,11 @@
   "homepage": "https://github.com/microbe-ui/react-microbe-ui#readme",
   "devDependencies": {
     "prettier": "^1.19.1",
+    "rollup": "^2.0.2",
+    "rollup-plugin-commonjs": "^10.1.0",
+    "rollup-plugin-node-resolve": "^5.2.0",
+    "rollup-plugin-peer-deps-external": "^2.2.2",
+    "rollup-plugin-typescript2": "^0.26.0",
     "typescript": "^3.8.3"
   }
 }

package.json

@@ -0,0 +1,45 @@
+import typescript from 'rollup-plugin-typescript2';
+import commonjs from 'rollup-plugin-commonjs';
+import external from 'rollup-plugin-peer-deps-external';
+import resolve from 'rollup-plugin-node-resolve';
+
+import pkg from './package.json';
+
+export default {
+	input: 'src/index.ts',
+	output: [
+		{
+			file: pkg.main,
+			format: 'cjs',
+			exports: 'named',
+			sourcemap: true
+		},
+		{
+			file: pkg.module,
+			format: 'es',
+			exports: 'named',
+			sourcemap: true
+		}
+	],
+	plugins: [
+		external(),
+		resolve(),
+		typescript({
+			rollupCommonJSResolveHack: true,
+			exclude: '**/__tests__/**',
+			clean: true
+		}),
+		commonjs({
+			include: ['node_modules/**'],
+			namedExports: {
+				'node_modules/react/react.js': [
+					'Children',
+					'Component',
+					'PropTypes',
+					'createElement'
+				],
+				'node_modules/react-dom/index.js': ['render']
+			}
+		})
+	]
+};

rollup.config.js

@@ -0,0 +1,3 @@
+export function testMethod(param: string): string {
+	return "Hello " + param;
+}