fix(es6): move to src/ folder, es6 modules, rollup

TAG: latest

.nycrc.json

@@ -2,6 +2,6 @@
   "check-coverage": true,
   "statements": 100,
   "functions": 100,
-  "branches": 98.25,
+  "branches": 100,
   "lines": 100
 }

package.json

@@ -6,14 +6,17 @@
   "homepage": "https://github.com/tunnckoCore/koa-better-serve",
   "author": "Charlike Mike Reagent <@tunnckoCore> (https://i.am.charlike.online)",
   "nspId": "1efca2b5-9131-4e4e-9081-b911c996598e",
-  "main": "./index.js",
+  "module": "./dest/index.mjs",
+  "main": "./dest/index.js",
   "license": "MIT",
   "scripts": {
     "fresh": "hela fresh",
     "contrib": "hela contrib",
     "renovate": "hela renovate",
     "lint": "hela lint -c .eslintrc.json",
+    "pretest": "hela build && hela pretest",
     "test": "hela test node test.js",
+    "posttest": "hela posttest",
     "precommit": "hela precommit",
     "commit": "hela commit",
     "postcommit": "git push",
@@ -25,7 +28,7 @@
     "npm": ">=5"
   },
   "files": [
-    "index.js"
+    "dest/"
   ],
   "dependencies": {
     "kind-of": "5.0.2",

rollup.config.js

@@ -0,0 +1,11 @@
+const pkg = require('./package.json')
+
+module.exports = {
+  entry: 'src/index.js',
+  interop: false,
+  external: Object.keys(pkg.dependencies),
+  targets: [
+    { dest: 'dest/index.js', format: 'cjs' },
+    { dest: 'dest/index.mjs', format: 'es' },
+  ],
+}

index.js → src/index.js

@@ -5,8 +5,8 @@
  * Released under the MIT license.
  */
 
-const send = require('koa-send')
-const kindOf = require('kind-of')
+import send from 'koa-send'
+import kindOf from 'kind-of'
 
 /**
  * Serving `dir` of files and folders, when request
@@ -28,7 +28,7 @@ const kindOf = require('kind-of')
  * @return {Function} a [koa][] plugin which returns `Promise` when called
  * @public
  */
-module.exports = function koaBetterServe (root, pathname, options) {
+export default function koaBetterServe (root, pathname, options) {
   if (kindOf(root) !== 'string') {
     throw new TypeError('koa-better-serve: expect `root` to be string')
   }

test.js

@@ -5,12 +5,15 @@
  * Released under the MIT license.
  */
 
-const Koa = require('koa')
+const path = require('path')
 const test = require('mukla') // eslint-disable-line
+const Koa = require('koa')
 const request = require('supertest')
-const serve = require('./index')
+const serve = require('./src/index')
+
+const relative = (fp) => path.join(__dirname, fp)
 
-test('throw error if `root` not a string', () => {
+test('1. throw error if `root` not a string', () => {
   function fixture () {
     serve(123)
   }
@@ -19,7 +22,7 @@ test('throw error if `root` not a string', () => {
   test.throws(fixture, /expect `root` to be string/)
 })
 
-test('throw error if `pathname` not a string or `options` object', () => {
+test('2. throw error if `pathname` not a string or `options` object', () => {
   function fixture () {
     serve('./foo', 123)
   }
@@ -28,10 +31,10 @@ test('throw error if `pathname` not a string or `options` object', () => {
   test.throws(fixture, /expect `pathname` to be string/)
 })
 
-test('accept `options` as second parameter', () => {
+test('3. accept `options` as second parameter', () => {
   let app = new Koa()
   app.use(
-    serve('./', {
+    serve(__dirname, {
       hidden: true,
     })
   )
@@ -42,36 +45,36 @@ test('accept `options` as second parameter', () => {
     .expect(200)
 })
 
-test('response 404 when `root` not exists', () => {
+test('4. response 404 when `root` not exists', () => {
   let app = new Koa()
   app.use(serve('./not-exists', '/'))
 
   return request(app.callback()).get('/LICENSE').expect(404, /Not Found/)
 })
 
-test('serve file from root when pathname `/pkg/`', () => {
+test('5. serve file from root when pathname `/pkg/`', () => {
   let server = new Koa()
 
   // both `/pkg/` and `pkg/` works
-  return request(server.use(serve('./', 'pkg/')).callback())
+  return request(server.use(serve(__dirname, 'pkg/')).callback())
     .get('/pkg/package.json')
     .expect(/name": "koa-better-serve"/)
     .expect(200)
 })
 
-test('serve package.json from nested root', () => {
+test('6. serve package.json from nested root', () => {
   let app = new Koa()
-  app.use(serve('./node_modules/koa-send'))
+  app.use(serve(relative('node_modules/koa-send')))
 
   return request(app.callback())
     .get('/package.json')
     .expect(/name": "koa-send"/)
     .expect(200)
 })
 
-test('serve file when request has prefix', () => {
+test('7. serve file when request has prefix', () => {
   let app = new Koa()
-  app.use(serve('./node_modules/supertest', '/some/foo/bar'))
+  app.use(serve(relative('node_modules/supertest'), '/some/foo/bar'))
 
   return request(app.callback())
     .get('/some/foo/bar/package.json')