refactor: remove no longer needed caniuse-lite dependency

Author: alan-agius4

package.json

@@ -96,7 +96,6 @@
     "@types/babel__core": "7.1.16",
     "@types/babel__template": "7.4.1",
     "@types/cacache": "^15.0.0",
-    "@types/caniuse-lite": "^1.0.0",
     "@types/copy-webpack-plugin": "^8.0.0",
     "@types/debug": "^4.1.2",
     "@types/express": "^4.16.0",
@@ -132,7 +131,6 @@
     "bootstrap": "^4.0.0",
     "browserslist": "^4.9.1",
     "cacache": "15.3.0",
-    "caniuse-lite": "^1.0.30001032",
     "chokidar": "^3.5.2",
     "circular-dependency-plugin": "5.2.2",
     "common-tags": "^1.8.0",

packages/angular_devkit/build_angular/BUILD.bazel

@@ -118,7 +118,6 @@ ts_library(
         "@npm//@types/babel__template",
         "@npm//@types/browserslist",
         "@npm//@types/cacache",
-        "@npm//@types/caniuse-lite",
         "@npm//@types/copy-webpack-plugin",
         "@npm//@types/glob",
         "@npm//@types/inquirer",
@@ -138,7 +137,6 @@ ts_library(
         "@npm//babel-plugin-istanbul",
         "@npm//browserslist",
         "@npm//cacache",
-        "@npm//caniuse-lite",
         "@npm//circular-dependency-plugin",
         "@npm//copy-webpack-plugin",
         "@npm//core-js",

packages/angular_devkit/build_angular/package.json

@@ -26,7 +26,6 @@
     "babel-plugin-istanbul": "6.1.1",
     "browserslist": "^4.9.1",
     "cacache": "15.3.0",
-    "caniuse-lite": "^1.0.30001032",
     "circular-dependency-plugin": "5.2.2",
     "copy-webpack-plugin": "9.0.1",
     "core-js": "3.19.1",

packages/angular_devkit/build_angular/src/builders/browser/index.ts

@@ -17,7 +17,6 @@ import { ScriptTarget } from 'typescript';
 import webpack from 'webpack';
 import { ExecutionTransformer } from '../../transforms';
 import {
-  BuildBrowserFeatures,
   deleteOutputDir,
   normalizeAssetPatterns,
   normalizeOptimization,
@@ -38,6 +37,7 @@ import { ensureOutputPaths } from '../../utils/output-paths';
 import { generateEntryPoints } from '../../utils/package-chunk-sort';
 import { augmentAppWithServiceWorker } from '../../utils/service-worker';
 import { Spinner } from '../../utils/spinner';
+import { getSupportedBrowsers } from '../../utils/supported-browsers';
 import { assertCompatibleAngularVersion } from '../../utils/version';
 import {
   generateI18nBrowserWebpackConfigFromContext,
@@ -153,9 +153,7 @@ export function buildWebpackBrowser(
         ),
       );
 
-      const buildBrowserFeatures = new BuildBrowserFeatures(sysProjectRoot);
-
-      checkInternetExplorerSupport(buildBrowserFeatures.supportedBrowsers, context.logger);
+      checkInternetExplorerSupport(sysProjectRoot, context.logger);
 
       return {
         ...(await initialize(options, context, transforms.webpackConfiguration)),
@@ -417,10 +415,8 @@ function mapEmittedFilesToFileInfo(files: EmittedFiles[] = []): FileInfo[] {
   return filteredFiles;
 }
 
-function checkInternetExplorerSupport(
-  supportedBrowsers: string[],
-  logger: logging.LoggerApi,
-): void {
+function checkInternetExplorerSupport(projectRoot: string, logger: logging.LoggerApi): void {
+  const supportedBrowsers = getSupportedBrowsers(projectRoot);
   if (supportedBrowsers.some((b) => b === 'ie 9' || b === 'ie 10' || b === 'ie 11')) {
     logger.warn(
       `Warning: Support was requested for Internet Explorer in the project's browserslist configuration. ` +

packages/angular_devkit/build_angular/src/utils/build-browser-features.ts

@@ -71,6 +71,7 @@ export interface BuildOptions {
   cache: NormalizedCachedOptions;
   codeCoverage?: boolean;
   codeCoverageExclude?: string[];
+  supportedBrowsers: string[];
 }
 
 export interface WebpackDevServerOptions

packages/angular_devkit/build_angular/src/utils/build-browser-features_spec.ts

@@ -6,7 +6,6 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-export * from './build-browser-features';
 export * from './default-progress';
 export * from './delete-output-dir';
 export * from './run-module-as-observable-fork';

packages/angular_devkit/build_angular/src/utils/build-options.ts

@@ -21,6 +21,7 @@ import {
 } from './normalize-file-replacements';
 import { NormalizedOptimizationOptions, normalizeOptimization } from './normalize-optimization';
 import { normalizeSourceMaps } from './normalize-source-maps';
+import { getSupportedBrowsers } from './supported-browsers';
 
 /**
  * A normalized browser builder schema.
@@ -65,5 +66,6 @@ export function normalizeBrowserSchema(
     // A value of 0 is falsy and will disable polling rather then enable
     // 500 ms is a sensible default in this case
     poll: options.poll === 0 ? 500 : options.poll,
+    supportedBrowsers: getSupportedBrowsers(getSystemPath(projectRoot)),
   };
 }

packages/angular_devkit/build_angular/src/utils/index.ts

@@ -0,0 +1,22 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+import browserslist from 'browserslist';
+
+export function getSupportedBrowsers(projectRoot: string): string[] {
+  browserslist.defaults = [
+    'last 1 Chrome version',
+    'last 1 Firefox version',
+    'last 2 Edge major versions',
+    'last 2 Safari major versions',
+    'last 2 iOS major versions',
+    'Firefox ESR',
+  ];
+
+  return browserslist(undefined, { path: projectRoot });
+}