Take ownership of SharePoint files with no checked in version, check them in, and publish with Powershell

This script will take ownership of all files in a library, then set whatever required metadata needs to be set, then check the items in.

Handy if a user has uploaded a ton of data using Explorer View, but never updated the metadata, and never actually checked in the files.  

if ((Get-PSSnapin | ? { $_.Name -eq "Microsoft.SharePoint.PowerShell" }) -eq $null) {
    Add-PSSnapin "Microsoft.SharePoint.PowerShell"
}

function BrowseItems($list, $Locationterm, $Departmentterm) {
    $files = $list.CheckedOutFiles
    foreach($file in $files)
    {
               $file.TakeOverCheckOut() #Take ownership of checked out document
    }


    foreach ($item in $list.Items) {
        $itemFile = $item.File

        if ($itemFile -ne $null) {
            if ($itemFile.CheckOutStatus -ne "None") {

                $LocationtaxField = [Microsoft.SharePoint.Taxonomy.TaxonomyField]$item.Fields["GAC Location"]
                $DepartmenttaxField = [Microsoft.SharePoint.Taxonomy.TaxonomyField]$item.Fields["GAC Department"]
                $fileName = $itemFile.Name
                $userName = $itemFile.CheckedOutByUser.Name;

                $item["Title"] = $fileName
                $LocationtaxField.SetFieldValue($item,$Locationterm)
                $DepartmenttaxField.SetFieldValue($item,$Departmentterm)
                $item.update()

               
                #Write-Host "Doing automatic CheckIn on the item" -f green -NoNewline
                $itemFile.CheckIn("Automatic CheckIn (Administrator)")
                #Write-Host " Done!" -f Yellow

                if( $list.EnableVersioning -and $list.EnableMinorVersions) {
                    #Write-Host "Doing automatic Publish on the item" -f green -NoNewline
                    $itemFile.Publish("Automatic Publish (Administrator)")
                    Write-Host "." -f Yellow
                }
            }
        }
    }
}

$url = "http://somesite.com/sites/teamsite/subweb"

$web = Get-SPWeb $url
$site = $web.Site

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Taxonomy")

$session = New-Object Microsoft.SharePoint.Taxonomy.TaxonomySession($site)
$termStore = $session.TermStores[0]

$Locationgroup = $termStore.Groups["Locations"]
$LocationtermSet = $Locationgroup.TermSets["Location"]
$Locationterms = $LocationtermSet.GetAllTerms()
$Locationterm = $Locationterms | ?{$_.Name -eq "SomeCity"}

$Departmentgroup = $termStore.Groups["Departments"]
$DepartmenttermSet = $Departmentgroup.TermSets["Department"]
$Departmentterms = $DepartmenttermSet.GetAllTerms()
$Departmentterm = $Departmentterms | ?{$_.Name -eq "SomeDepartment"}

$list = $web.lists["Some Document Library"]

BrowseItems $list $Locationterm $Departmentterm