From 13ed899d7d03049040792cf38a7e38c8a6974de9 Mon Sep 17 00:00:00 2001
From: Hayden Barnes <hayden.barnes@hpe.com>
Date: Tue, 30 Jan 2024 10:44:40 -0500
Subject: [PATCH] Add -check to wsl-latest-kernel

---
 README.md             | 2 ++
 wsl-latest-kernel.ps1 | 7 ++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 7f81188..bbd958a 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,8 @@ Downloads, builds, and installs the latest kernel release from WSL2-Linux-Kernel
 
 `wsl-latest-kernel` - Run wsl-latest-kernel.
 
+`wsl-latest-kernel -check` - Check for an available kernel updates.
+
 `wsl-latest-kernel -force` - Overwrites the existing custom kernel.
 
 `wsl-latest-kernel -customconfig kernelconfig` - Build the kernel with a custom kernel config file. Expects a Windows path.
diff --git a/wsl-latest-kernel.ps1 b/wsl-latest-kernel.ps1
index 4be5f7c..34210b5 100644
--- a/wsl-latest-kernel.ps1
+++ b/wsl-latest-kernel.ps1
@@ -3,7 +3,8 @@ param(
     [switch]$force,
     [string]$customConfig,
     [switch]$skipClean,
-    [switch]$revert
+    [switch]$revert,
+    [switch]$check
 )
 
 # Function to convert a Windows path to a WSL path
@@ -57,6 +58,10 @@ if ($latestRelease.tag_name -eq $wslKernelVersion) {
     Exit 1
 }
 
+if ($check) {
+    Exit 0
+}
+
 # Run a persistent process in the wsl-system distro to prevent it from shutting down and resetting the environment
 $job = Start-Job -ScriptBlock {
     wsl --system --user root sh -c "while true; do sleep 1000; done"