chore(NA): try esbuild-loader minimizer

package.json

@@ -697,6 +697,7 @@
     "enzyme-adapter-react-16": "^1.15.6",
     "enzyme-adapter-utils": "^1.14.0",
     "enzyme-to-json": "^3.6.1",
+    "esbuild-loader": "^2.13.1",
     "eslint": "^6.8.0",
     "eslint-config-prettier": "^6.15.0",
     "eslint-import-resolver-node": "0.3.2",

packages/kbn-ui-shared-deps/BUILD.bazel

@@ -47,6 +47,7 @@ SRC_DEPS = [
   "@npm//core-js",
   "@npm//css-minimizer-webpack-plugin",
   "@npm//css-loader",
+  "@npm//esbuild-loader",
   "@npm//fflate",
   "@npm//jquery",
   "@npm//loader-utils",

packages/kbn-ui-shared-deps/webpack.config.js

@@ -7,11 +7,9 @@
  */
 
 const Path = require('path');
-const Os = require('os');
 
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
-const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
-const TerserPlugin = require('terser-webpack-plugin');
+const { ESBuildMinifyPlugin } = require('esbuild-loader');
 
 const CompressionPlugin = require('compression-webpack-plugin');
 const { REPO_ROOT } = require('@kbn/utils');
@@ -31,6 +29,7 @@ module.exports = {
     'kbn-ui-shared-deps.v8.light': ['@elastic/eui/dist/eui_theme_amsterdam_light.css'],
   },
   context: __dirname,
+  //
   devtool: 'cheap-source-map',
   output: {
     path: UiSharedDeps.distDir,
@@ -110,26 +109,11 @@ module.exports = {
 
   optimization: {
     minimizer: [
-      new CssMinimizerPlugin({
-        parallel: Math.min(Os.cpus().length, 2),
-        minimizerOptions: {
-          preset: [
-            'default',
-            {
-              discardComments: false,
-            },
-          ],
-        },
-      }),
-      new TerserPlugin({
-        cache: false,
-        sourceMap: false,
-        extractComments: false,
-        parallel: Math.min(Os.cpus().length, 2),
-        terserOptions: {
-          compress: true,
-          mangle: true,
-        },
+      new ESBuildMinifyPlugin({
+        target: 'es6',
+        css: true,
+        sourcemap: false,
+        legalComments: 'none',
       }),
     ],
     noEmitOnErrors: true,

yarn.lock

@@ -12629,6 +12629,24 @@ es6-weak-map@^2.0.1, es6-weak-map@^2.0.2:
     es6-iterator "^2.0.1"
     es6-symbol "^3.1.1"
 
+esbuild-loader@^2.13.1:
+  version "2.13.1"
+  resolved "https://registry.yarnpkg.com/esbuild-loader/-/esbuild-loader-2.13.1.tgz#9c89e654390a9a25d99b2f6d803ade30f4335418"
+  integrity sha512-Tzc5nB5tVUmigXz6m4j1OYozJCjdix7E9vtd5RaE54fqz2Rz34Is9S8FbAf8uqR4xvQUBAXIi6Jkn1OeMxw2aQ==
+  dependencies:
+    esbuild "^0.11.19"
+    joycon "^3.0.1"
+    json5 "^2.2.0"
+    loader-utils "^2.0.0"
+    tapable "^2.2.0"
+    type-fest "^1.0.1"
+    webpack-sources "^2.2.0"
+
+esbuild@^0.11.19:
+  version "0.11.23"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.11.23.tgz#c42534f632e165120671d64db67883634333b4b8"
+  integrity sha512-iaiZZ9vUF5wJV8ob1tl+5aJTrwDczlvGP0JoMmnpC2B0ppiMCu8n8gmy5ZTGl5bcG081XBVn+U+jP+mPFm5T5Q==
+
 escalade@^3.0.2, escalade@^3.1.0, escalade@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
@@ -17514,6 +17532,11 @@ joi@^17.3.0:
     "@sideway/formula" "^3.0.0"
     "@sideway/pinpoint" "^2.0.0"
 
+joycon@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/joycon/-/joycon-3.0.1.tgz#9074c9b08ccf37a6726ff74a18485f85efcaddaf"
+  integrity sha512-SJcJNBg32dGgxhPtM0wQqxqV0ax9k/9TaUskGDSJkSFSQOEWWvQ3zzWdGQRIUry2j1zA5+ReH13t0Mf3StuVZA==
+
 jpeg-js@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/jpeg-js/-/jpeg-js-0.0.4.tgz#06aaf47efec7af0b1924a59cd695a6d2b5ed870e"
@@ -17770,6 +17793,13 @@ json5@^2.1.0, json5@^2.1.1, json5@^2.1.2:
   dependencies:
     minimist "^1.2.5"
 
+json5@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-2.2.0.tgz#2dfefe720c6ba525d9ebd909950f0515316c89a3"
+  integrity sha512-f+8cldu7X/y7RAJurMEJmdoKXGB/X550w2Nr3tTbezL6RwEE/iMcm+tZnXeoZtKuOq6ft8+CqzEkrIgx1fPoQA==
+  dependencies:
+    minimist "^1.2.5"
+
 jsondiffpatch@0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/jsondiffpatch/-/jsondiffpatch-0.4.1.tgz#9fb085036767f03534ebd46dcd841df6070c5773"
@@ -25255,7 +25285,7 @@ sort-keys@^2.0.0:
   dependencies:
     is-plain-obj "^1.0.0"
 
-source-list-map@^2.0.0:
+source-list-map@^2.0.0, source-list-map@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
   integrity sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw==
@@ -26422,6 +26452,11 @@ tapable@^1.0.0, tapable@^1.1.3:
   resolved "https://registry.yarnpkg.com/tapable/-/tapable-1.1.3.tgz#a1fccc06b58db61fd7a45da2da44f5f3a3e67ba2"
   integrity sha512-4WK/bYZmj8xLr+HUCODHGF1ZFzsYffasLUgEiMBY4fgtltdO6B4WJtlSbPaDTLpYTcGVwM2qLnFTICEcNxs3kA==
 
+tapable@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/tapable/-/tapable-2.2.0.tgz#5c373d281d9c672848213d0e037d1c4165ab426b"
+  integrity sha512-FBk4IesMV1rBxX2tfiK8RAmogtWn53puLOQlvO8XuwlgxcYbP4mVPS9Ph4aeamSyyVjOl24aYWAuc8U5kCVwMw==
+
 tape@^4.5.1:
   version "4.10.2"
   resolved "https://registry.yarnpkg.com/tape/-/tape-4.10.2.tgz#129fcf62f86df92687036a52cce7b8ddcaffd7a6"
@@ -27271,6 +27306,11 @@ type-fest@^0.8.0, type-fest@^0.8.1:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.8.1.tgz#09e249ebde851d3b1e48d27c105444667f17b83d"
   integrity sha512-4dbzIzqvjtgiM5rw1k5rEHtBANKmdudhGyBEajN01fEyhaAIhsoKNy6y7+IN93IfpFtwY9iqi7kD+xwKhQsNJA==
 
+type-fest@^1.0.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-1.2.1.tgz#232990aa513f3f5223abf54363975dfe3a121a2e"
+  integrity sha512-SbmIRuXhJs8KTneu77Ecylt9zuqL683tuiLYpTRil4H++eIhqCmx6ko6KAFem9dty8sOdnEiX7j4K1nRE628fQ==
+
 type-is@~1.6.17, type-is@~1.6.18:
   version "1.6.18"
   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.18.tgz#4e552cd05df09467dcbc4ef739de89f2cf37c131"
@@ -28893,6 +28933,14 @@ webpack-sources@^1.1.0, webpack-sources@^1.4.0, webpack-sources@^1.4.1, webpack-
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
+webpack-sources@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-2.3.0.tgz#9ed2de69b25143a4c18847586ad9eccb19278cfa"
+  integrity sha512-WyOdtwSvOML1kbgtXbTDnEW0jkJ7hZr/bDByIwszhWd/4XX1A3XMkrbFMsuH4+/MfLlZCUzlAdg4r7jaGKEIgQ==
+  dependencies:
+    source-list-map "^2.0.1"
+    source-map "^0.6.1"
+
 webpack-virtual-modules@^0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/webpack-virtual-modules/-/webpack-virtual-modules-0.2.2.tgz#20863dc3cb6bb2104729fff951fbe14b18bd0299"