Add Object.assign polyfill support (#210)

* Add Object.assign polyfill support

* Remove redundant polyfill check

* Use ES6 in compatibility.js

package.json

@@ -15,11 +15,13 @@
     "frontend_html": "script/vulcanize.js",
     "frontend_prod": "npm run js_prod && npm run frontend_html",
     "frontend_demo": "npm run js_demo && npm run frontend_html",
-    "ru_all": "npm run ru_core && npm run ru_demo",
+    "ru_all": "npm run ru_core && npm run ru_compatibility && npm run ru_demo",
     "ru_core": "rollup --config rollup/core.js",
+    "ru_compatibility": "rollup --config rollup/compatibility.js",
     "ru_demo": "rollup --config rollup/demo.js",
-    "watch_ru_all": "npm run watch_ru_core && npm run watch_ru_demo",
+    "watch_ru_all": "(npm run watch_ru_core & npm run watch_ru_compatibility & npm run watch_ru_demo) && wait",
     "watch_ru_core": "rollup --config rollup/core.js --watch --sourcemap inline",
+    "watch_ru_compatibility": "rollup --config rollup/compatibility.js --watch --sourcemap inline",
     "watch_ru_demo": "rollup --config rollup/demo.js --watch --sourcemap inline",
     "lint_js": "eslint src panels --ext html",
     "lint_html": "ls -1 src/home-assistant.html panels/**/ha-panel-*.html | xargs polymer lint --input",
@@ -32,6 +34,7 @@
   },
   "devDependencies": {
     "bower": "^1.8.0",
+    "es6-object-assign": "^1.0.3",
     "eslint": "^3.14.0",
     "eslint-config-airbnb-base": "^11.0.1",
     "eslint-plugin-html": "^1.7.0",

rollup/compatibility.js

@@ -0,0 +1,8 @@
+import config from './base-config';
+
+export default Object.assign({}, config, {
+  entry: 'src/compatibility.js',
+  targets: [
+    { dest: 'build/compatibility.js', format: 'iife' },
+  ],
+});

script/gen-service-worker.js

@@ -21,13 +21,18 @@ var rootDir = '..';
 var panelDir = rootDir + '/panels';
 
 var dynamicUrlToDependencies = {
-  '/': [rootDir + '/frontend.html', rootDir + '/core.js'],
+  '/': [
+    rootDir + '/frontend.html',
+    rootDir + '/core.js',
+    rootDir + '/compatibility.js',
+  ],
 };
 
 var staticFingerprinted = [
   'frontend.html',
   'mdi.html',
   'core.js',
+  'compatibility.js',
 ];
 
 // These panels will always be registered inside HA and thus can

script/optimize-js.js

@@ -6,3 +6,7 @@ var optimizeJs = require('optimize-js');
 var core = fs.readFileSync('build/core.js', 'utf-8');
 core = optimizeJs(core);
 fs.writeFileSync('build/core.js', core);
+
+var compatibility = fs.readFileSync('build/compatibility.js', 'utf-8');
+compatibility = optimizeJs(compatibility);
+fs.writeFileSync('build/compatibility.js', compatibility);

src/compatibility.js

@@ -0,0 +1,2 @@
+import objAssign from 'es6-object-assign';
+objAssign.polyfill();

yarn.lock

@@ -1762,6 +1762,10 @@ es6-map@^0.1.3:
     es6-symbol "~3.1.0"
     event-emitter "~0.3.4"
 
+es6-object-assign@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/es6-object-assign/-/es6-object-assign-1.0.3.tgz#40a192e0fda5ee44ee8cf6f5b5d9b47cd0f69b14"
+
 es6-promise@^2.1.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-2.3.0.tgz#96edb9f2fdb01995822b263dd8aadab6748181bc"