Get SharePoint Document Library's Version size details

#--------------------------------------------------------------------------------------------------------------------------------------------
# Author: Shiv Mangal Singh
# Date: May 26, 2016
# Description: This script is used to get SharePoint Document Library's Versions(total number of version created,latest version size, versions size, total versions size) Size Report across Web Application.
# Syntax $WebAppURL --> WebApplication Name | $FileUrl--> CSV file location
# e.g: .\Get_DocumentLibraryVersionReport_WebApplication.ps1
#--------------------------------------------------------------------------------------------------------------------------------------------
# Add SharePoint cmdlets reference
Add-PSSnapin microsoft.sharepoint.powershell -ErrorAction SilentlyContinue

Function GenerateVersionSizeReport($WebAppURL, $FileUrl)
{
 #Get the Web Application
$WebApp = Get-msSite -WebApplication $WebAppURL -limit all

 #Write the CSV Header - Tab Separated
"Site Name`t Library `t File Name `t File URL `t File Type `t Last Modified `t No. of Versions `t Latest Version Size(MB) `t Versions Size(MB) `t Total File Size(MB)" | Out-File $FileUrl -Append

 #Loop through each site collection
  foreach($Site in $WebApp)
   {

    #Loop through each site in the site collection
     foreach($Web in $Site.AllWebs)
      {
            #Loop through  each List
            foreach ($List in $Web.Lists)
            {
              Write-Host $List.Title
                #Get only Document Libraries & Exclude Hidden System libraries
                if ( ($List.BaseType -eq "DocumentLibrary") -and ($List.Hidden -eq $false) )
                {
                    foreach ($ListItem  in $List.Items)
                    {
          #Consider items with 1+ versions
                        if ($ListItem.Versions.Count -gt 1)
                        {
          $versionSize=0

                            #Get the versioning details
                            foreach ($FileVersion in $ListItem.File.Versions)
                            {
                                $versionSize = $versionSize + $FileVersion.Size;
                            }
       #To Calculate Total Size(MB)
      $ToalFileSize= [Math]::Round(((($ListItem.File.Length + $versionSize)/1024)/1024),2)
       
                            #Convert Size to MB
                            $VersionSize= [Math]::Round((($versionSize/1024)/1024),2)
       
       #Get the Size of the current version
       $CurrentVersionSize= [Math]::Round((($ListItem.File.Length/1024)/1024),2)
       
                            #Get Site Name
                            if ($Web.IsRootWeb -eq $true)
                            {
                                $siteName = $Web.Title +" - Root";
                            }
                            else
                            {
                                $siteName= $Site.RootWeb.Title + " - " + $Web.Title;
                            }

                            #Log the data to a CSV file where versioning size > 0MB!
                            if ($versionSize -gt 0)
                            {
                                "$($siteName) `t $($List.Title) `t $($ListItem.Name) `t $($Web.Url)/$($ListItem.Url) `t $($ListItem['File Type'].ToString()) `t $($ListItem['Modified'].ToString())`t $($ListItem.Versions.Count) `t $CurrentVersionSize `t $($versionSize) `t $($ToalFileSize)" | Out-File $FileUrl -Append
                            }
                        }
                    }
                }
            }
  $Web.Dimsose()        
        }
$Site.Dimsose()        
    }
 
    #Send message to console
   # write-host "Versioning Report Generated Successfully!"
}
#Call the Function to Generate Version History Report
GenerateVersionSizeReport "https://ms.contoso.net/" "D:\contosomsSSU_MWTeam\Shiv\versionreportNew.csv"