From bb150cdd4fc09eec68e72ff113ce42003b303306 Mon Sep 17 00:00:00 2001
From: Li Bo <borgerli@tencent.com>
Date: Tue, 26 Jan 2021 20:12:58 +0800
Subject: [PATCH] change minimum bash version to 4.2

---
 hack/lib/util.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hack/lib/util.sh b/hack/lib/util.sh
index 8ed0a597cef..401ea1a726a 100755
--- a/hack/lib/util.sh
+++ b/hack/lib/util.sh
@@ -734,8 +734,8 @@ function kube::util::ensure_dockerized {
 #
 function kube::util::ensure-bash-version {
   # shellcheck disable=SC2004
-  if ((${BASH_VERSINFO[0]}<5)); then
-    echo "ERROR: This script requires a minimum bash version of 5.0"
+  if ((${BASH_VERSINFO[0]}<4)) || ( ((${BASH_VERSINFO[0]}==4)) && ((${BASH_VERSINFO[1]}<2)) ); then
+    echo "ERROR: This script requires a minimum bash version of 4.2, but got version of ${BASH_VERSINFO[0]}.${BASH_VERSINFO[1]}"
     exit 1
   fi
 }