From ce781942079bcf080bc2229daf3d5ac366e5280d Mon Sep 17 00:00:00 2001
From: Justin Willis <jgw9617@gmail.com>
Date: Tue, 13 Sep 2016 16:46:00 -0500
Subject: [PATCH] feat(): add polyfill task

* feat(): polyfills task

* fix(): remove base option

* fix(): minification and small polyfills

* fix(): add readme and new file names

* fix(): change task names

* fix(): naming changes
---
 package.json                    |  2 ++
 scripts/gulp/gulpfile.ts        |  1 +
 scripts/gulp/tasks/polyfills.ts | 55 +++++++++++++++++++++++++++++++++
 scripts/npm/polyfills.readme.md | 46 +++++++++++++++++++++++++++
 4 files changed, 104 insertions(+)
 create mode 100644 scripts/gulp/tasks/polyfills.ts
 create mode 100644 scripts/npm/polyfills.readme.md

diff --git a/package.json b/package.json
index 959a9dc0206..6f938c24d63 100644
--- a/package.json
+++ b/package.json
@@ -74,6 +74,7 @@
     "gulp-strip-debug": "^1.1.0",
     "gulp-tslint": "^5.0.0",
     "gulp-typescript": "^2.13.6",
+    "gulp-uglify": "^2.0.0",
     "gulp-util": "^3.0.6",
     "gulp-watch": "^4.2.4",
     "html-entities": "^1.1.3",
@@ -104,6 +105,7 @@
     "tslint": "^3.15.1",
     "tslint-ionic-rules": "0.0.5",
     "typescript": "2.0.2",
+    "uglify": "^0.1.5",
     "vinyl": "^1.2.0",
     "webpack": "^2.1.0-beta.20",
     "webpack-dev-server": "^1.14.1",
diff --git a/scripts/gulp/gulpfile.ts b/scripts/gulp/gulpfile.ts
index 79a0f3b90d9..3aa366f14d4 100644
--- a/scripts/gulp/gulpfile.ts
+++ b/scripts/gulp/gulpfile.ts
@@ -6,4 +6,5 @@ import './tasks/lint';
 import './tasks/release';
 import './tasks/snapshot';
 import './tasks/test';
+import './tasks/polyfills';
 //import './tasks/theme';
diff --git a/scripts/gulp/tasks/polyfills.ts b/scripts/gulp/tasks/polyfills.ts
new file mode 100644
index 00000000000..47bd75bfff9
--- /dev/null
+++ b/scripts/gulp/tasks/polyfills.ts
@@ -0,0 +1,55 @@
+import { task, src, dest } from 'gulp';
+const concat = require('gulp-concat');
+const uglify = require('gulp-uglify');
+
+task('polyfill', ['polyfill.modern', 'polyfill.all', 'polyfill.ng', 'polyfill.copy-readme']);
+
+task('polyfill.modern', (done) => {
+    return src([
+        'node_modules/zone.js/dist/zone.min.js',
+        'node_modules/zone.js/dist/proxy.min.js',
+        'node_modules/core-js/es6/array.js',
+        'node_modules/core-js/es6/date.js',
+        'node_modules/core-js/es6/function.js',
+        'node_modules/core-js/es6/map.js',
+        'node_modules/core-js/es6/number.js',
+        'node_modules/core-js/es6/object.js',
+        'node_modules/core-js/es6/parse-float.js',
+        'node_modules/core-js/es6/parse-int.js',
+        'node_modules/core-js/es6/promise.js',
+        'node_modules/core-js/es6/set.js',
+        'node_modules/core-js/es6/string.js',
+        'node_modules/core-js/es7/reflect.js'
+    ])
+    .pipe(concat('polyfills.modern.js'))
+    .pipe(uglify())
+    .pipe(dest('dist/ionic-angular/polyfills/'), done);
+});
+
+task('polyfill.all', (done) => {
+    return src([
+        'node_modules/zone.js/dist/zone.min.js',
+        'node_modules/zone.js/dist/proxy.min.js',
+        'node_modules/core-js/es6/index.js',
+        'node_modules/core-js/es7/reflect.js'
+    ])
+    .pipe(concat('polyfills.js'))
+    .pipe(uglify())
+    .pipe(dest('dist/ionic-angular/polyfills/'), done);
+});
+
+task('polyfill.ng', (done) => {
+    return src([
+        'node_modules/zone.js/dist/zone.min.js',
+        'node_modules/zone.js/dist/proxy.min.js',
+        'node_modules/core-js/es7/reflect.js'
+    ])
+    .pipe(concat('polyfills.ng.js'))
+    .pipe(uglify())
+    .pipe(dest('dist/ionic-angular/polyfills/'), done);
+});
+
+task('polyfill.copy-readme', (done) => {
+    return src('scripts/npm/polyfills.readme.md')
+    .pipe(dest('dist/ionic-angular/polyfills/README.md'), done);
+});
diff --git a/scripts/npm/polyfills.readme.md b/scripts/npm/polyfills.readme.md
new file mode 100644
index 00000000000..bf4f1187288
--- /dev/null
+++ b/scripts/npm/polyfills.readme.md
@@ -0,0 +1,46 @@
+## polyfills.js 
+Contains all polyfills needed to work on the largest range of devices. This is the default polyfill. 
+
+##### Targets: 
+- Android 4.4.2 and above
+- iOS back to iOS 8
+
+##### Includes:
+- All ES6 features
+- zone.js
+- ES7 reflection
+
+
+## polyfills.modern.js
+A limited of set of polyfills to work on more modern browsers. This file limits the number of ES6 polyfills which are already natively included in modern browsers.
+
+##### Targets: 
+- Android 5.0 and above
+- iOS 9 and above
+
+##### Includes:
+- zone.js
+- ES7 reflection, 
+- ES6 polyfills, except for:
+new regexp features,
+math features,
+symbols,
+typed arrays,
+weak maps / weak sets
+
+
+## polyfills.ng.js
+Only the required polyfill for Angular 2. This does not come with any ES6 polyfills. Note that all polyfill files listed here included the required polyfills for Angular 2 to work correctly.
+
+##### Targets:
+- Android 5.0 and above
+- iOS 10 and above
+
+##### Includes:
+- zone.js
+- ES7 reflection
+
+
+## ECMAScript 6 Compatibility
+
+To easily judge which polyfill you may need you can check this [ES6 support table](https://kangax.github.io/compat-table/es6/).