Build: Replace Esperanto with Rollup

Fixes gh-268
Closes gh-284

Author: bethge

Gruntfile.js

@@ -116,30 +116,26 @@ module.exports = function(grunt) {
   });
 
   grunt.registerTask('build', function() {
-    var esperanto = require('esperanto');
+    var rollup = require('rollup');
     var done = this.async();
 
     grunt.log.write('Building PEP...');
-    esperanto.bundle({
-      base: 'src',
-      entry: 'pointerevents.js'
+    rollup.rollup({
+      entry: 'src/pointerevents.js'
     }).then(function(bundle) {
-      var umd = bundle.toUmd({
-        name: 'PointerEventsPolyfill'
-
-        // sourceMap: true,
-        // sourceMapFile: 'dist/pep.js'
+      var result = bundle.generate({
+        moduleName: 'PointerEventsPolyfill',
+        format: 'umd',
+        banner: header
       });
-      grunt.file.write('dist/pep.js', header + umd.code);
-
-      // grunt.file.write('dist/pep.js.map', umd.map.toString());
+      grunt.file.write('dist/pep.js', result.code);
     }).then(
       function() {
         grunt.log.ok();
         done();
       },
       function(error) {
-        grunt.log.error();
+        grunt.log.error(error);
         done(error);
       }
     );

package.json

@@ -22,7 +22,6 @@
     "atob": "^1.1.2",
     "bluebird": "^2.9.30",
     "chai-spies": "^0.5.1",
-    "esperanto": "^0.6.6",
     "fs-extra": "^0.19.0",
     "glob": "^5.0.10",
     "grunt": "~0.4.1",
@@ -34,7 +33,8 @@
     "grunt-selenium-standalone": "1.0.1",
     "intern": "2.2.2",
     "lodash": "^3.9.3",
-    "request": "^2.58.0"
+    "request": "^2.58.0",
+    "rollup": "^0.26.1"
   },
   "web-platform-tests": {
     "repo": "w3c/web-platform-tests#c98d1ff0ea91ba1aa9a15e8ea2d70d8ede1fdc0e",

src/capture.js

@@ -1,4 +1,4 @@
-import dispatcher from 'dispatcher';
+import dispatcher from './dispatcher';
 
 var n = window.navigator;
 var s, r;

src/dispatcher.js

@@ -1,5 +1,5 @@
-import PointerEvent from 'PointerEvent';
-import PointerMap from 'pointermap';
+import PointerEvent from './PointerEvent';
+import PointerMap from './pointermap';
 
 var CLONE_PROPS = [
 

src/installer.js

@@ -5,7 +5,7 @@
  * All nodes that wish to generate Pointer Events must have the attribute
  * `touch-action` set to `none`.
  */
-import targeting from 'targeting';
+import targeting from './targeting';
 
 var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);
 var map = Array.prototype.map.call.bind(Array.prototype.map);

src/mouse.js

@@ -1,4 +1,4 @@
-import dispatcher from 'dispatcher';
+import dispatcher from './dispatcher';
 
 var pointermap = dispatcher.pointermap;
 

src/ms.js

@@ -1,4 +1,4 @@
-import dispatcher from 'dispatcher';
+import dispatcher from './dispatcher';
 
 var pointermap = dispatcher.pointermap;
 var HAS_BITMAP_TYPE = window.MSPointerEvent &&

src/platform-events.js

@@ -1,8 +1,8 @@
-import PointerEvent from 'PointerEvent';
-import dispatcher from 'dispatcher';
-import mouseEvents from 'mouse';
-import touchEvents from 'touch';
-import msEvents from 'ms';
+import PointerEvent from './PointerEvent';
+import dispatcher from './dispatcher';
+import mouseEvents from './mouse';
+import touchEvents from './touch';
+import msEvents from './ms';
 
 export function applyPolyfill() {
 

src/pointerevents.js

@@ -1,11 +1,11 @@
-import dispatcher from 'dispatcher';
-import PointerMap from 'pointermap';
-import Installer from 'installer';
-import targeting from 'targeting';
-import PointerEvent from 'PointerEvent';
-import { applyAttributeStyles } from 'touch-action';
-import { applyPolyfill as applyPointerEventPolyfill } from 'platform-events';
-import { applyPolyfill as applyCapturePolyfill } from 'capture';
+import dispatcher from './dispatcher';
+import PointerMap from './pointermap';
+import Installer from './installer';
+import targeting from './targeting';
+import PointerEvent from './PointerEvent';
+import { applyAttributeStyles } from './touch-action';
+import { applyPolyfill as applyPointerEventPolyfill } from './platform-events';
+import { applyPolyfill as applyCapturePolyfill } from './capture';
 
 applyAttributeStyles();
 applyPointerEventPolyfill();

src/touch.js

@@ -1,7 +1,7 @@
-import targeting from 'targeting';
-import dispatcher from 'dispatcher';
-import Installer from 'installer';
-import mouseEvents from 'mouse';
+import targeting from './targeting';
+import dispatcher from './dispatcher';
+import Installer from './installer';
+import mouseEvents from './mouse';
 
 var captureInfo = dispatcher.captureInfo;
 var findTarget = targeting.findTarget.bind(targeting);