new: Add new --parallel option. (#31)

Author: milesj

packages/config-webpack/src/helpers.ts

@@ -98,3 +98,19 @@ export function getFavIcon(srcPath: string): string {
 
   return favicon;
 }
+
+export function getParallelValue(value: boolean | string | number | undefined): boolean | number {
+  if (value === undefined) {
+    return true;
+  }
+
+  if (value === 'true') {
+    return true;
+  }
+
+  if (value === 'false' || value === '') {
+    return false;
+  }
+
+  return Number(value || 1);
+}

packages/config-webpack/src/index.ts

@@ -14,11 +14,12 @@ import {
   GQL_EXT_PATTERN,
   TJSX_EXT_PATTERN,
 } from '@airbnb/nimbus-common';
-import { PORT, ROOT, PROD, getESMAliases, getFavIcon } from './helpers';
+import { PORT, ROOT, PROD, getESMAliases, getFavIcon, getParallelValue } from './helpers';
 
 export interface WebpackOptions {
   analyzeBundle?: boolean;
   buildFolder?: string;
+  parallel?: boolean | string | number;
   port?: string | number;
   react?: boolean;
   sourceMaps?: boolean;
@@ -28,6 +29,7 @@ export interface WebpackOptions {
 export function getConfig({
   analyzeBundle = false,
   buildFolder = 'public',
+  parallel = true,
   port = PORT,
   react = false,
   sourceMaps = false,
@@ -158,7 +160,7 @@ export function getConfig({
       minimizer: [
         new TerserPlugin({
           sourceMap: sourceMaps,
-          parallel: true,
+          parallel: getParallelValue(parallel),
         }),
       ],
     },

packages/nimbus/src/configs/webpack.ts

@@ -5,6 +5,7 @@ const { srcFolder, react } = getSettings();
 
 export default getConfig({
   analyzeBundle: !!process.env.WEBPACK_ANALYZE,
+  parallel: process.env.WEBPACK_PARALLEL,
   port: process.env.PORT,
   react,
   sourceMaps: !!process.env.SOURCE_MAPS,

packages/nimbus/src/index.ts

@@ -192,6 +192,7 @@ export default function nimbus(tool: Beemo) {
       env: {
         SOURCE_MAPS: context.args.sourceMaps ? 'true' : '',
         WEBPACK_ANALYZE: context.args.analyze ? 'true' : '',
+        WEBPACK_PARALLEL: String(context.args.parallel || ''),
       },
     });
   }, 'webpack');