feat(@angular-devkit/build-angular): use terser instead of uglify-es (#11996)

Should help bring down prod build times, @SanderElias reported a ~60% reduction on his project.

Should fix #9340.

Author: filipesilva

packages/angular_devkit/build_angular/package.json

@@ -46,7 +46,7 @@
     "stylus": "^0.54.5",
     "stylus-loader": "^3.0.2",
     "tree-kill": "^1.2.0",
-    "uglifyjs-webpack-plugin": "^1.2.5",
+    "terser-webpack-plugin": "^1.0.2",
     "url-loader": "^1.0.1",
     "webpack": "^4.15.1",
     "webpack-dev-middleware": "^3.1.3",

packages/angular_devkit/build_angular/src/angular-cli-files/models/webpack-configs/common.ts

@@ -24,7 +24,7 @@ import { normalizeExtraEntryPoints } from './utils';
 
 const ProgressPlugin = require('webpack/lib/ProgressPlugin');
 const CircularDependencyPlugin = require('circular-dependency-plugin');
-const UglifyJSPlugin = require('uglifyjs-webpack-plugin');
+const TerserPlugin = require('terser-webpack-plugin');
 const StatsPlugin = require('stats-webpack-plugin');
 
 /**
@@ -208,7 +208,7 @@ export function getCommonConfig(wco: WebpackConfigOptions) {
   const isIvyEnabled = wco.tsConfig.raw.angularCompilerOptions
                     && wco.tsConfig.raw.angularCompilerOptions.enableIvy;
 
-  const uglifyOptions = {
+  const terserOptions = {
     ecma: wco.supportES2015 ? 6 : 5,
     warnings: !!buildOptions.verbose,
     safari10: true,
@@ -318,11 +318,11 @@ export function getCommonConfig(wco: WebpackConfigOptions) {
           // component styles retain their original file name
           test: (file) => /\.(?:css|scss|sass|less|styl)$/.test(file),
         }),
-        new UglifyJSPlugin({
+        new TerserPlugin({
           sourceMap: buildOptions.sourceMap,
           parallel: true,
           cache: true,
-          uglifyOptions,
+          terserOptions,
         }),
       ],
     },

yarn.lock

@@ -500,6 +500,10 @@ agent-base@^4.1.0:
   dependencies:
     es6-promisify "^5.0.0"
 
+ajv-errors@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/ajv-errors/-/ajv-errors-1.0.0.tgz#ecf021fa108fd17dfb5e6b383f2dd233e31ffc59"
+
 ajv-keywords@^3.1.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.2.0.tgz#e86b819c602cf8821ad637413698f1dec021847a"
@@ -1187,6 +1191,25 @@ cacache@^10.0.4:
     unique-filename "^1.1.0"
     y18n "^4.0.0"
 
+cacache@^11.0.2:
+  version "11.2.0"
+  resolved "https://registry.yarnpkg.com/cacache/-/cacache-11.2.0.tgz#617bdc0b02844af56310e411c0878941d5739965"
+  dependencies:
+    bluebird "^3.5.1"
+    chownr "^1.0.1"
+    figgy-pudding "^3.1.0"
+    glob "^7.1.2"
+    graceful-fs "^4.1.11"
+    lru-cache "^4.1.3"
+    mississippi "^3.0.0"
+    mkdirp "^0.5.1"
+    move-concurrently "^1.0.1"
+    promise-inflight "^1.0.1"
+    rimraf "^2.6.2"
+    ssri "^6.0.0"
+    unique-filename "^1.1.0"
+    y18n "^4.0.0"
+
 cache-base@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
@@ -2697,6 +2720,10 @@ fecha@^2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/fecha/-/fecha-2.3.3.tgz#948e74157df1a32fd1b12c3a3c3cdcb6ec9d96cd"
 
+figgy-pudding@^3.1.0:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/figgy-pudding/-/figgy-pudding-3.4.1.tgz#af66da1991fa2f94ff7f33b545a38ea4b3869696"
+
 file-loader@^1.1.11:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/file-loader/-/file-loader-1.1.11.tgz#6fe886449b0f2a936e43cabaac0cdbfb369506f8"
@@ -2766,6 +2793,14 @@ find-cache-dir@^1.0.0:
     make-dir "^1.0.0"
     pkg-dir "^2.0.0"
 
+find-cache-dir@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-2.0.0.tgz#4c1faed59f45184530fb9d7fa123a4d04a98472d"
+  dependencies:
+    commondir "^1.0.1"
+    make-dir "^1.0.0"
+    pkg-dir "^3.0.0"
+
 find-parent-dir@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/find-parent-dir/-/find-parent-dir-0.3.0.tgz#33c44b429ab2b2f0646299c5f9f718f376ff8d54"
@@ -4454,7 +4489,7 @@ lru-cache@2.2.x:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.2.4.tgz#6c658619becf14031d0d0b594b16042ce4dc063d"
 
-lru-cache@^4.0.1, lru-cache@^4.1.1:
+lru-cache@^4.0.1, lru-cache@^4.1.1, lru-cache@^4.1.3:
   version "4.1.3"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
   dependencies:
@@ -4710,6 +4745,21 @@ mississippi@^2.0.0:
     stream-each "^1.1.0"
     through2 "^2.0.0"
 
+mississippi@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-3.0.0.tgz#ea0a3291f97e0b5e8776b363d5f0a12d94c67022"
+  dependencies:
+    concat-stream "^1.5.0"
+    duplexify "^3.4.2"
+    end-of-stream "^1.1.0"
+    flush-write-stream "^1.0.0"
+    from2 "^2.1.0"
+    parallel-transform "^1.1.0"
+    pump "^3.0.0"
+    pumpify "^1.3.3"
+    stream-each "^1.1.0"
+    through2 "^2.0.0"
+
 mixin-deep@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.1.tgz#a49e7268dce1a0d9698e45326c5626df3543d0fe"
@@ -5441,6 +5491,12 @@ pkg-dir@^2.0.0:
   dependencies:
     find-up "^2.1.0"
 
+pkg-dir@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-3.0.0.tgz#2749020f239ed990881b1f71210d51eb6523bea3"
+  dependencies:
+    find-up "^3.0.0"
+
 popper.js@^1.14.1:
   version "1.14.4"
   resolved "https://registry.yarnpkg.com/popper.js/-/popper.js-1.14.4.tgz#8eec1d8ff02a5a3a152dd43414a15c7b79fd69b6"
@@ -5635,6 +5691,13 @@ pump@^2.0.0, pump@^2.0.1:
     end-of-stream "^1.1.0"
     once "^1.3.1"
 
+pump@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-3.0.0.tgz#b4a2116815bde2f4e1ea602354e8c75565107a64"
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
 pumpify@^1.3.3:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/pumpify/-/pumpify-1.5.1.tgz#36513be246ab27570b1a374a5ce278bfd74370ce"
@@ -6195,6 +6258,14 @@ schema-utils@^0.4.0, schema-utils@^0.4.3, schema-utils@^0.4.4, schema-utils@^0.4
     ajv "^6.1.0"
     ajv-keywords "^3.1.0"
 
+schema-utils@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-1.0.0.tgz#0b79a93204d7b600d4b2850d1f66c2a34951c770"
+  dependencies:
+    ajv "^6.1.0"
+    ajv-errors "^1.0.0"
+    ajv-keywords "^3.1.0"
+
 scss-tokenizer@^0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/scss-tokenizer/-/scss-tokenizer-0.2.3.tgz#8eb06db9a9723333824d3f5530641149847ce5d1"
@@ -6503,6 +6574,13 @@ source-map-support@~0.4.0:
   dependencies:
     source-map "^0.5.6"
 
+source-map-support@~0.5.6:
+  version "0.5.9"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.9.tgz#41bc953b2534267ea2d605bccfa7bfa3111ced5f"
+  dependencies:
+    buffer-from "^1.0.0"
+    source-map "^0.6.0"
+
 source-map-url@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
@@ -6660,6 +6738,10 @@ ssri@^5.2.4:
   dependencies:
     safe-buffer "^5.1.1"
 
+ssri@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/ssri/-/ssri-6.0.0.tgz#fc21bfc90e03275ac3e23d5a42e38b8a1cbc130d"
+
 stack-trace@0.0.x:
   version "0.0.10"
   resolved "https://registry.yarnpkg.com/stack-trace/-/stack-trace-0.0.10.tgz#547c70b347e8d32b4e108ea1a2a159e5fdde19c0"
@@ -6884,6 +6966,27 @@ term-size@^1.2.0:
   dependencies:
     execa "^0.7.0"
 
+terser-webpack-plugin@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-1.0.2.tgz#b62dfdc4e59b0b5093665a765b234645b598d1a5"
+  dependencies:
+    cacache "^11.0.2"
+    find-cache-dir "^2.0.0"
+    schema-utils "^1.0.0"
+    serialize-javascript "^1.4.0"
+    source-map "^0.6.1"
+    terser "^3.8.1"
+    webpack-sources "^1.1.0"
+    worker-farm "^1.5.2"
+
+terser@^3.8.1:
+  version "3.8.1"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-3.8.1.tgz#cb70070ac9e0a71add169dfb63c0a64fca2738ac"
+  dependencies:
+    commander "~2.16.0"
+    source-map "~0.6.1"
+    source-map-support "~0.5.6"
+
 text-extensions@^1.0.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.7.0.tgz#faaaba2625ed746d568a23e4d0aacd9bf08a8b39"
@@ -7143,7 +7246,7 @@ uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
 
-uglifyjs-webpack-plugin@^1.2.4, uglifyjs-webpack-plugin@^1.2.5:
+uglifyjs-webpack-plugin@^1.2.4:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.2.7.tgz#57638dd99c853a1ebfe9d97b42160a8a507f9d00"
   dependencies: