From 0936f8bc034e224b40a2a0197940456b239925d1 Mon Sep 17 00:00:00 2001
From: Ben Brown <ben.brown@codethink.co.uk>
Date: Fri, 28 Feb 2020 16:49:54 +0000
Subject: [PATCH] Fix Hyper-V compacted disk size comparison

Prior to this the code compares the length of the path, which of course
doesn't change.
---
 common/powershell/hyperv/hyperv.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/common/powershell/hyperv/hyperv.go b/common/powershell/hyperv/hyperv.go
index a80624609..363701d1f 100644
--- a/common/powershell/hyperv/hyperv.go
+++ b/common/powershell/hyperv/hyperv.go
@@ -872,9 +872,9 @@ if ($disks.Length -eq 0) {
 foreach ($disk in $disks) {
     Write-Output "Compacting disk: $(Split-Path $disk -leaf)"
 
-    $sizeBefore = $disk.Length
+    $sizeBefore = (Get-Item -Path $disk).Length
     Optimize-VHD -Path $disk -Mode Full
-    $sizeAfter = $disk.Length
+    $sizeAfter = (Get-Item -Path $disk).Length
 
     # Calculate the percentage change in disk size
     if ($sizeAfter -gt 0) { # Protect against division by zero