PowerShell session log rotation

param (
    $localPath = "",
    $remotePath = "",
    $backupPath = "",
    $winSCPPath = "C:\Program Files (x86)\WinSCP\WinSCPnet.dll",
    $logPath = ""
)
 
try
{
    # Load WinSCP .NET assembly
    Add-Type -Path $winSCPPath
 
    # Setup session options
    $sessionOptions = New-Object WinSCP.SessionOptions -Property @{
        Protocol = [WinSCP.Protocol]::Sftp
        HostName = ""
        UserName = ""
        Password = ""
        SshHostKeyFingerprint = ""
    }
 
    $session = New-Object WinSCP.Session
 
    # Log
    $Session.SessionLogPath = $logPath
    
 
    try
    {
        # Connect
        $session.Open($sessionOptions)
 
        # Upload files, collect results
        $transferResult = $session.PutFiles($localPath, $remotePath)
 
        # Iterate over every transfer
        foreach ($transfer in $transferResult.Transfers)
        {
            # Success or error?
            if ($transfer.Error -eq $Null)
            {
                Write-Host "Upload of $($transfer.FileName) succeeded, moving to backup"
                # Upload succeeded, move source file to backup
                Move-Item $transfer.FileName $backupPath
            }
            else
            {
                Write-Host "Upload of $($transfer.FileName) failed: $($transfer.Error.Message)"
            }
        }
    }
    finally
    {
        # Disconnect, clean up
        $session.Dispose()
    }
 
    exit 0
}
catch
{
    Write-Host "Error: $($_.Exception.Message)"
    exit 1
}

$session.AddRawConfiguration("Logging\LogMaxSize", "1048576");