From efda517d93f2d9899a2f79d3371f9bb42c655f7f Mon Sep 17 00:00:00 2001
From: Benjamin Elder <bentheelder@google.com>
Date: Thu, 9 Oct 2025 16:55:36 -0700
Subject: [PATCH] speed up make clean by narrowing recursive chmod

---
 build/common.sh | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/build/common.sh b/build/common.sh
index 1e47c3cda95..cf58de3d187 100755
--- a/build/common.sh
+++ b/build/common.sh
@@ -391,8 +391,14 @@ function kube::build::clean() {
 
   if [[ -d "${LOCAL_OUTPUT_ROOT}" ]]; then
     kube::log::status "Removing _output directory"
-    # this ensures we can clean _output/local/go/cache which is not rw by default
-    chmod -R +w "${LOCAL_OUTPUT_ROOT}"
+    # This ensures we can clean _output/local/go/cache which is not rw by default.
+    #
+    # We only do this path specifically instead of the entire output root
+    # because recursive chmod is slow.
+    # We don't need to do this at all for dockerized builds
+    if [[ -d "${LOCAL_OUTPUT_ROOT}/local/go/cache" ]]; then
+      chmod -R +w "${LOCAL_OUTPUT_ROOT}/local/go/cache"
+    fi
     rm -rf "${LOCAL_OUTPUT_ROOT}"
   fi
 }