From 1be3b07836659487e4aa9b8c71c673635e268a60 Mon Sep 17 00:00:00 2001
From: Alan Agius <alan.agius4@gmail.com>
Date: Tue, 13 Jul 2021 17:06:58 +0200
Subject: [PATCH] fix(@angular-devkit/build-angular): exclude `outputPath` from
 persistent build cache key

With this change we exclude `outputPath` from cache key due to i18n extraction which causes it to change on every build https://github.com/angular/angular-cli/blob/736a5f89deaca85f487b78aec9ff66d4118ceb6a/packages/angular_devkit/build_angular/src/utils/i18n-options.ts#L264-L265

Closes #21275
---
 .../build_angular/src/webpack/configs/common.ts          | 9 ++++++++-
 1 file changed, 8 insertions(+), 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 e880c169ce51..84a67d761ea6 100644
--- a/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
+++ b/packages/angular_devkit/build_angular/src/webpack/configs/common.ts
@@ -507,7 +507,14 @@ function getCacheSettings(
         .update(packageVersion)
         .update(wco.projectRoot)
         .update(JSON.stringify(wco.tsConfig))
-        .update(JSON.stringify(wco.buildOptions))
+        .update(
+          JSON.stringify({
+            ...wco.buildOptions,
+            // Needed because outputPath changes on every build when using i18n extraction
+            // https://github.com/angular/angular-cli/blob/736a5f89deaca85f487b78aec9ff66d4118ceb6a/packages/angular_devkit/build_angular/src/utils/i18n-options.ts#L264-L265
+            outputPath: undefined,
+          }),
+        )
         .update(supportedBrowsers.join(''))
         .digest('hex'),
     };