scriptUpgraded.ps1

Write-Output "started"

$saveDir = "D:\blog\provisioning\powershell"
$siteTitle ="";

$siteURL = "URL_OF_YOUR_SITE_SOURCE"
$destination = "URL_OF_YOUR_SITE_TARGET"

function ProcessFolder($folderUrl, $destinationFolder) {
	Write-Output "Folder URL " $folderUrl  " destinationFolder " $destinationFolder
    $folder = Get-PnPFolder -RelativeUrl $folderUrl
    $tempfiles = Get-PnPProperty -ClientObject $folder -Property Files
   
    if (!(Test-Path -path $destinationfolder )) {
        $dest = New-Item $destinationfolder -type directory 
    }

    $total = $folder.Files.Count
	$ctx = Get-PnPContext
	
    For ($i = 0; $i -lt $total; $i++) {
        $file = $folder.Files[$i]
        
		$ctx.load($file.Versions)
        $ctx.ExecuteQuery()

		foreach($version in $file.Versions)
		{
			$filesplit = $file.Name.split(".") 
			$fullname = $filesplit[0] 
			$fileext = $filesplit[1] 
			$FullFileName = $fullname+"\"+$version.VersionLabel+"\"+$file.Name         

			$fileURL = $destination+"/"+$version.Url


			$DownloadPath = $FullFileName

			if (!(Test-Path ($destinationfolder + "\" + $fullname + "\" + $version.VersionLabel)))
			{
				New-Item ($destinationfolder + "\" + $fullname + "\" + $version.VersionLabel) -type directory -Force
			}

			HTTPDownloadFile "$fileURL" ($destinationfolder + "\" + $fullname + "\" + $version.VersionLabel + "\" + $file.Name)
			
			$versionSourceFolder =  "./" + $siteTitle + "/" + $folder.Name + "/" + $fullname + "/" + $version.VersionLabel + "/" + $file.Name
			Add-PnPFileToProvisioningTemplate -Path ($saveDir + "Template.xml") -Source $versionSourceFolder -Folder $folderUrl -FileLevel Published
		}
		
        Get-PnPFile -ServerRelativeUrl $file.ServerRelativeUrl -Path $destinationfolder -FileName $file.Name -AsFile -Force	

		Add-PnPFileToProvisioningTemplate -Path ($saveDir + "Template.xml") -Source ($destinationfolder + "\" + $file.Name) -Folder $folderUrl -FileLevel Published
		
    }
	
}

function ProcessSubFolders($folders, $currentPath) {
    foreach ($folder in $folders) {
        $tempurls = Get-PnPProperty -ClientObject $folder -Property ServerRelativeUrl    
        #Avoid Forms folders
        if ($folder.Name -ne "Forms") {
            $targetFolder = $currentPath +"\"+ $folder.Name;
            ProcessFolder $folder.ServerRelativeUrl.Substring($web.ServerRelativeUrl.Length) $targetFolder 
            $tempfolders = Get-PnPProperty -ClientObject $folder -Property Folders
            ProcessSubFolders $tempfolders $targetFolder
        }
    }
}

function HTTPDownloadFile($ServerFileLocation, $DownloadPath)
{
	$userName = "LOGIN_NAME"
	$password = "PASSWORD"

	#create secure password
	$sPassword = $password | ConvertTo-SecureString -AsPlainText -Force

	$webClient = New-Object System.Net.WebClient 
	$webClient.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($userName, $sPassword)
	$webClient.Headers.Add("X-FORMS_BASED_AUTH_ACCEPTED", "f")

    $webclient.DownloadFile($ServerFileLocation,$DownloadPath)
}


Write-Output "source: $siteURL"
Write-Output "destination: $destination"
Write-Output "Connecting to: $siteURL"

Connect-PnPOnline -Url $siteURL 
Write-Output "Connected!"

$web = Get-PnPWeb

$siteTitle = $web.Title

$saveDir = $saveDir + "\" + $siteTitle + "\"


Get-PnPProvisioningTemplate -Out $($saveDir + $pageTemplate) -Force -PersistBrandingFiles -PersistPublishingFiles -IncludeNativePublishingFiles -Handlers Navigation, Lists,PageContents, Pages, Files


$docLibs = Get-PNPList | Where-Object{$_.BaseTemplate -eq 101}

Write-Output "getting doc list"

foreach( $doc in $docLibs ){

    if( $doc.Title -ne "Site Assets"){
        #Download root files
        ProcessFolder $doc.Title ($saveDir + $doc.Title)

        #Download files in folders
        $tempfolders = Get-PnPProperty -ClientObject $doc.RootFolder -Property Folders
        ProcessSubFolders $tempfolders $($saveDir + $doc.Title) + "\"
    }
}

Apply-PnPProvisioningTemplate -path ($saveDir + "Template.xml") -Handlers Navigation, Lists, Pages, Files -ClearNavigation

Write-Output "done"