adding ts support

package.json

@@ -55,7 +55,9 @@
     "rollup-plugin-postcss": "^0.5.5",
     "rollup-plugin-preserve-shebang": "^0.1.3",
     "rollup-plugin-sizes": "^0.4.2",
+    "rollup-plugin-typescript2": "^0.8.4",
     "rollup-plugin-uglify": "^2.0.1",
+    "typescript": "^2.6.2",
     "yargs": "^10.0.3"
   },
   "devDependencies": {

src/index.js

@@ -1,5 +1,5 @@
 import fs from 'fs';
-import { resolve, relative, dirname, basename } from 'path';
+import { resolve, relative, dirname, basename, extname } from 'path';
 import chalk from 'chalk';
 import { map, series } from 'asyncro';
 import promisify from 'es6-promisify';
@@ -18,6 +18,7 @@ import gzipSize from 'gzip-size';
 import prettyBytes from 'pretty-bytes';
 import shebangPlugin from 'rollup-plugin-preserve-shebang';
 import flow from 'rollup-plugin-flow';
+import typescript from 'rollup-plugin-typescript2';
 import camelCase from 'camelcase';
 
 const readFile = promisify(fs.readFile);
@@ -180,6 +181,13 @@ function createConfig(options, entry, format) {
 					],
 					extract: true
 				}),
+				extname(entry)==='ts' && typescript({
+					tsconfigOverride: {
+						compilerOptions: {
+							target: format==='es' ? 'es6' : 'es5'
+						}
+					}
+				}),
 				flow({ all: true }),
 				nodent({
 					exclude: 'node_modules/**',

test/demo/src/two.js

@@ -1,3 +1,3 @@
 export async function two(...args) {
 	return args.reduce( (total, value) => total + value, 0);
-}
+}

test/ts-demo/package.json

@@ -0,0 +1,3 @@
+{
+  "name": "ts-demo"
+}

test/ts-demo/src/car.ts

@@ -0,0 +1,9 @@
+interface Driveable {
+	drive(distance: number): boolean;
+}
+
+export default class Car implements Driveable {
+	public drive(distance: number): boolean {
+		return true;
+	}
+}

test/ts-demo/src/index.ts

@@ -0,0 +1,4 @@
+import Car from './car.ts';
+
+let ferrari = new Car();
+ferrari.drive(100);