PowerShell module for VM management

VmTools.psm1

$ErrorActionPreference = "Stop"

# run like this: 
#   import-module vmtools.psm1
#   move-vm -VmName "test-vm" -DestRoot "c:\HyperV"

function Move-VM {
    [CmdletBinding()]
    param (
        [parameter(Mandatory=$true)] [string]$VmName,
        [parameter(Mandatory=$true)] [string]$DestRoot
    )

    process {
        
        $state_before = (get-vm $VmName).State
        if ($state_before -ne "Off"){
            stop-vm $vmname
        }
        
        #get all HDD paths
        $hdinfo = Get-VMHardDiskDrive -vmname $vmname | select-object controllertype,controllernumber,controllerlocation,path

        #remove HDDs from VM
        Get-VMHardDiskDrive -vmname $vmname | Remove-VMHardDiskDrive

        #export VM to new location
        export-vm -name $vmname -path $destroot

        #remove VM
        remove-vm -name $vmname -force

        $vmrootpath = join-path $destroot $vmname
        $configpath = join-path $vmrootpath "Virtual Machines"
        $vhdpath = join-path $vmrootpath "Virtual Hard Disks"

        #import VM
        import-vm -path (get-childitem $configpath -file).fullname

        foreach ($hd in $hdinfo) {
            $hdfilename = [system.io.path]::getfilename($hd.path)
            $newhdpath = join-path $vhdpath $hdfilename

            #move HDD to new location
            move-item -path $hd.path -destination $newhdpath

            #re-add HDD to VM in new location
            Add-VMHardDiskDrive -vmname $vmname -controllertype $hd.controllertype -controllernumber $hd.controllernumber -controllerlocation $hd.controllerlocation -path $newhdpath
        }
        
        if ($state_before -eq "Running"){
            start-vm $vmname
        }
    }
}