From 699802d48853cedbf9468b94d196fd8106d43485 Mon Sep 17 00:00:00 2001
From: Alan Agius <alan.agius4@gmail.com>
Date: Mon, 7 Jun 2021 13:05:22 +0200
Subject: [PATCH] perf(@angular-devkit/build-angular): reduce memory usage by
 cleaning output directory before emitting

Unless `deleteOutputPath` is false, we should clean, this helps reduce assets in tests.
---
 .../angular_devkit/build_angular/src/webpack/configs/common.ts  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/angular_devkit/build_angular/src/webpack/configs/common.ts b/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
index c3beb80e1774..4c9f83fad922 100644
--- a/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
+++ b/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
@@ -413,7 +413,7 @@ export function getCommonConfig(wco: WebpackConfigOptions): Configuration {
     context: root,
     entry: entryPoints,
     output: {
-      clean: buildOptions.deleteOutputPath,
+      clean: buildOptions.deleteOutputPath ?? true,
       path: path.resolve(root, buildOptions.outputPath),
       publicPath: buildOptions.deployUrl ?? '',
       filename: ({ chunk }) => {