From 03a794f94c89843a51b3339f8be5e76c6d0e397d Mon Sep 17 00:00:00 2001
From: Richard Wall <richard.wall@jetstack.io>
Date: Wed, 26 May 2021 15:07:35 +0100
Subject: [PATCH] Use awk regular expression delimeters and a more precise
 regexp for the version

Signed-off-by: Richard Wall <richard.wall@jetstack.io>
---
 build/helm.bzl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/build/helm.bzl b/build/helm.bzl
index 849c3d657..f7fa8252e 100644
--- a/build/helm.bzl
+++ b/build/helm.bzl
@@ -145,10 +145,10 @@ def helm_chart_yaml(
         awk '
           BEGIN{
             getline v < "$(location %s)"
-            pr = match(v, "^v[0-9]+.[0-9]+.[0-9]+$$") == 0 ? "true" : "false"
+            pr = match(v, /^v[0-9]+\.[0-9]+\.[0-9]+$$/) == 0 ? "true" : "false"
           }
           /{PRERELEASE}/{
-            gsub("{PRERELEASE}", pr)
+            gsub(/{PRERELEASE}/, pr)
           }1
         ' $(location %s) > $@
         """ % (version_file, chart_yaml_template),