From 28c27567cf90712e6c8f4d483bcc0e0fc683ee9b Mon Sep 17 00:00:00 2001
From: Charles Lyding <19598772+clydin@users.noreply.github.com>
Date: Tue, 11 Apr 2023 16:21:14 -0400
Subject: [PATCH] perf(@angular-devkit/build-angular): asynchronously delete
 output path in esbuild builder

When using the esbuild-based browser application builder, the output path is deleted
prior to performing a build to ensure a clean output with only the built files. The
deletion will now be performed asynchronously using the Node.js promised-based API.
This should provide a small performance improvement for projects with large output
directories.

(cherry picked from commit df49c359de9489ab1e93246d41f571034af900e4)
---
 .../build_angular/src/builders/browser-esbuild/index.ts  | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/packages/angular_devkit/build_angular/src/builders/browser-esbuild/index.ts b/packages/angular_devkit/build_angular/src/builders/browser-esbuild/index.ts
index 46df6216f689..2a8a61780486 100644
--- a/packages/angular_devkit/build_angular/src/builders/browser-esbuild/index.ts
+++ b/packages/angular_devkit/build_angular/src/builders/browser-esbuild/index.ts
@@ -12,7 +12,6 @@ import assert from 'node:assert';
 import { constants as fsConstants } from 'node:fs';
 import fs from 'node:fs/promises';
 import path from 'node:path';
-import { deleteOutputDir } from '../../utils';
 import { copyAssets } from '../../utils/copy-assets';
 import { assertIsError } from '../../utils/error';
 import { transformSupportedBrowsersToTargets } from '../../utils/esbuild-targets';
@@ -623,7 +622,13 @@ export async function* buildEsbuildBrowser(
   if (shouldWriteResult) {
     // Clean output path if enabled
     if (userOptions.deleteOutputPath) {
-      deleteOutputDir(normalizedOptions.workspaceRoot, userOptions.outputPath);
+      if (normalizedOptions.outputPath === normalizedOptions.workspaceRoot) {
+        context.logger.error('Output path MUST not be workspace root directory!');
+
+        return;
+      }
+
+      await fs.rm(normalizedOptions.outputPath, { force: true, recursive: true, maxRetries: 3 });
     }
 
     // Create output directory if needed