Fix bundle analyzer script

Signed-off-by: Gowtham Shanmugasundaram <[email protected]>

analyzeTest.ts

@@ -1,4 +1,5 @@
 import * as fs from 'fs';
+import { parseChunked } from '@discoveryjs/json-ext';
 
 const pluginName = process.env.PLUGIN;
 const MAX_ASSET_SIZE = 17; //17 MiB
@@ -12,17 +13,17 @@ const stringifyMiB = (value: ReturnType<typeof toMiB>): string =>
 
 const getParsedStatFile = () => {
   const filePath = getStatsFilePath();
-  const statsFile = fs.readFileSync(filePath, 'utf-8');
-  return JSON.parse(statsFile);
+
+  return parseChunked(fs.createReadStream(filePath, { encoding: 'utf8' }));
 };
 
 type BundleDataMap = Record<string, number>;
 
 // [Valid Bundles, Violating Bunldes]
-type GetBundleInformation = () => [BundleDataMap, BundleDataMap];
+type GetBundleInformation = () => Promise<[BundleDataMap, BundleDataMap]>;
 
-const getBundleInformation: GetBundleInformation = () => {
-  const statsData = getParsedStatFile();
+const getBundleInformation: GetBundleInformation = async () => {
+  const statsData = await getParsedStatFile();
   const validAssets = {};
   const violatingAssets = {};
 
@@ -39,8 +40,8 @@ const getBundleInformation: GetBundleInformation = () => {
   return [validAssets, violatingAssets];
 };
 
-const validateBuild = () => {
-  const [validAssets, violatingAssets] = getBundleInformation();
+const validateBuild = async () => {
+  const [validAssets, violatingAssets] = await getBundleInformation();
   if (Object.keys(violatingAssets).length > 0) {
     // eslint-disable-next-line no-console
     console.error('Assets are larger than expected', violatingAssets);

package.json

@@ -175,7 +175,8 @@
     "stylelint-config-sass-guidelines": "^8.0.0",
     "stylelint-config-standard": "^22.0.0",
     "stylelint-order": "^4.1.0",
-    "webpack-dev-server": "^4.15.2"
+    "webpack-dev-server": "^4.15.2",
+    "@discoveryjs/json-ext": "0.6.1"
   },
   "resolutions": {
     "jest-environment-jsdom/jsdom": "^20.0.3",

yarn.lock

@@ -1278,6 +1278,11 @@
   resolved "https://registry.yarnpkg.com/@discoveryjs/json-ext/-/json-ext-0.5.7.tgz#1d572bfbbe14b7704e0ba0f39b74815b84870d70"
   integrity sha512-dBVuXR082gk3jsFp7Rd/JI4kytwGHecnCoTtXFb7DB6CNHp4rg5k1bhg0nWdLGLnOV71lmDzGQaLMy8iPLY0pw==
 
+"@discoveryjs/[email protected]":
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/@discoveryjs/json-ext/-/json-ext-0.6.1.tgz#593da7a17a31a72a874e313677183334a49b01c9"
+  integrity sha512-boghen8F0Q8D+0/Q1/1r6DUEieUJ8w2a1gIknExMSHBsJFOr2+0KUfHiVYBvucPwl3+RU5PFBK833FjFCh3BhA==
+
 "@discoveryjs/json-ext@^0.5.0":
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/@discoveryjs/json-ext/-/json-ext-0.5.3.tgz#90420f9f9c6d3987f176a19a7d8e764271a2f55d"