From 78bfa24157c386a5cd89cb43e4a1324ebbb8c04e Mon Sep 17 00:00:00 2001
From: Ryan Grange <ryangrange@gmail.com>
Date: Sat, 7 May 2022 12:49:17 +0000
Subject: [PATCH] Update KubernetesClientConfiguration.ConfigFile.cs (#848)

Handle unset environment variables returning null values to Path.Combine
---
 .../KubernetesClientConfiguration.ConfigFile.cs               | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/KubernetesClient/KubernetesClientConfiguration.ConfigFile.cs b/src/KubernetesClient/KubernetesClientConfiguration.ConfigFile.cs
index 9ef6c3f..73342b8 100644
--- a/src/KubernetesClient/KubernetesClientConfiguration.ConfigFile.cs
+++ b/src/KubernetesClient/KubernetesClientConfiguration.ConfigFile.cs
@@ -17,8 +17,8 @@ namespace k8s
         /// </summary>
         public static readonly string KubeConfigDefaultLocation =
             RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
-                ? Path.Combine(Environment.GetEnvironmentVariable("USERPROFILE"), @".kube\config")
-                : Path.Combine(Environment.GetEnvironmentVariable("HOME"), ".kube/config");
+                ? Path.Combine(Environment.GetEnvironmentVariable("USERPROFILE") ?? @"\", @".kube\config")
+                : Path.Combine(Environment.GetEnvironmentVariable("HOME") ?? "/", ".kube/config");
 
         /// <summary>
         ///     Gets CurrentContext