From 29ce6aeeaf5d81949e21e141f7b89e15ed87d03c Mon Sep 17 00:00:00 2001
From: Bob Tanner <tanner@real-time.com>
Date: Mon, 13 Nov 2017 21:09:41 -0600
Subject: [PATCH] WIP https://github.com/StefanScherer/packer-windows/issues/49

Make sure we find a High Performance power profile before blindly setting
the power profile.
---
 scripts/set-powerplan.ps1 | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/scripts/set-powerplan.ps1 b/scripts/set-powerplan.ps1
index 65ee32c1..646eba74 100644
--- a/scripts/set-powerplan.ps1
+++ b/scripts/set-powerplan.ps1
@@ -1,7 +1,20 @@
 Try {
+  Write-Output "Set power plan to high performance"
+
   $HighPerf = powercfg -l | %{if($_.contains("High performance")) {$_.split()[3]}}
+
+  # $HighPerf cannot be $null, we try activate this power profile with powercfg
+  # 
+  if ($HighPerf -eq $null)
+  {
+    throw "Error: HighPerf is null"
+  }
+
   $CurrPlan = $(powercfg -getactivescheme).split()[3]
+
   if ($CurrPlan -ne $HighPerf) {powercfg -setactive $HighPerf}
+
 } Catch {
   Write-Warning -Message "Unable to set power plan to high performance"
+  Write-Warning $Error[0]
 }