Update to Uglify Harmony 2.8.22 and add support Babili fallback.

This is the same behavior of the official `minifier-js` package, except
with the Harmony branch.

.versions

@@ -1,49 +1,8 @@
-abernix:minifier-js@1.3.19
-allow-deny@1.0.5
-babel-compiler@6.14.1
-babel-runtime@1.0.1
-base64@1.0.10
-binary-heap@1.0.10
-blaze@2.1.9
-blaze-tools@1.0.10
-boilerplate-generator@1.0.11
-callback-hook@1.0.10
-check@1.2.5
-ddp@1.2.5
-ddp-client@1.3.3
-ddp-common@1.2.8
-ddp-server@1.3.13
-deps@1.0.12
-diff-sequence@1.0.7
-ecmascript@0.6.3
+abernix:minifier-js@2.0.0
+babel-compiler@6.18.1
 ecmascript-runtime@0.3.15
-ejson@1.0.13
-geojson-utils@1.0.10
-html-tools@1.0.11
-htmljs@1.0.11
-id-map@1.0.9
-jquery@1.11.10
-local-test:abernix:minifier-js@1.3.19
-logging@1.1.17
 meteor@1.6.1
-minimongo@1.0.21
-modules@0.7.9
-modules-runtime@0.7.9
-mongo@1.1.16
-mongo-id@1.0.6
-npm-mongo@2.2.24
-observe-sequence@1.0.16
-ordered-dict@1.0.9
+modules@0.8.1
+modules-runtime@0.7.10
 promise@0.8.8
-random@1.0.10
-reactive-var@1.0.11
-retry@1.0.9
-routepolicy@1.0.12
-spacebars@1.0.13
-spacebars-compiler@1.0.13
-tinytest@1.0.12
-tracker@1.1.2
-ui@1.0.12
 underscore@1.0.10
-webapp@1.3.14
-webapp-hashing@1.0.9

minifier.js

@@ -1,2 +1,25 @@
-UglifyJS = Npm.require('uglify-js');
-UglifyJSMinify = UglifyJS.minify;
+var uglify;
+
+meteorJsMinify = function (source) {
+  var result = {};
+  uglify = uglify || Npm.require("uglify-js");
+
+  try {
+    result.code = uglify.minify(source, {
+      fromString: true,
+      compress: {
+        drop_debugger: false,
+        unused: false,
+        dead_code: false
+      }
+    }).code;
+
+  } catch (e) {
+    // Although Babel.minify can handle a wider variety of ECMAScript
+    // 2015+ syntax, it is substantially slower than UglifyJS, so we use
+    // it only as a fallback.
+    result.code = Babel.minify(source).code;
+  }
+
+  return result;
+};

package.js

@@ -1,28 +1,16 @@
 Package.describe({
   name: 'abernix:minifier-js',
   summary: "JavaScript minifier",
-  version: "1.3.19"
+  version: "2.0.0"
 });
 
 Npm.depends({
   "source-map": "0.5.6",
-  "uglify-js": "git+https://github.com/mishoo/UglifyJS2#harmony-v2.8.15",
-});
-
-Npm.strip({
-  "uglify-js": ["test/"]
+  "uglify-js": "git+https://github.com/mishoo/UglifyJS2#harmony-v2.8.22",
 });
 
 Package.onUse(function (api) {
-  api.export(['UglifyJSMinify', 'UglifyJS']);
+  api.use('babel-compiler@6.18.1');
+  api.export(['meteorJsMinify']);
   api.addFiles(['minifier.js'], 'server');
 });
-
-Package.onTest(function (api) {
-  api.use('abernix:minifier-js', 'server');
-  api.use('tinytest');
-
-  api.addFiles([
-    'beautify-tests.js',
-  ], 'server');
-});