functions/ExportImportSqlConfig.ps1

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Function Export-SqlSpConfigure
{
 <#
            .SYNOPSIS
              Exports advanced sp_configure global configuration options to sql file.

            .EXAMPLE
               $outputfile = Export-SqlSpConfigure $sourceserver -Path C:\temp\sp_configure.sql

            .OUTPUTS
                File to disk, and string path.
   
        #>

    [CmdletBinding(DefaultParameterSetName = "Default", SupportsShouldProcess = $true)]
    param (
        [Parameter(Mandatory = $true)]
        [ValidateNotNullOrEmpty()]
        [object]$SqlServer,
        [string]$Path,
        [System.Management.Automation.PSCredential]$SqlCredential
    )
    
    BEGIN
    {
        $server = Connect-SqlServer $SqlServer $SqlCredential
        
        if ($server.versionMajor -lt 9) { "Windows 2000 not supported for sp_configure export."; break }
        
        if ($path.length -eq 0)
        {
            $timenow = (Get-Date -uformat "%m%d%Y%H%M%S")
            $mydocs = [Environment]::GetFolderPath('MyDocuments')
            $path = "$mydocs\$($server.name.replace('\', '$'))-$timenow-sp_configure.sql"
        }
    
    }
    
    PROCESS
        {
        try { Set-Content -Path $path "EXEC sp_configure 'show advanced options' , 1; RECONFIGURE WITH OVERRIDE" }
        catch { throw "Can't write to $path" }
        
        $server.Configuration.ShowAdvancedOptions.ConfigValue = $true
        $server.ConnectionContext.ExecuteNonQuery("RECONFIGURE WITH OVERRIDE") | Out-Null
        foreach ($sourceprop in $server.Configuration.Properties)
        {
            $displayname = $sourceprop.DisplayName
            $configvalue = $sourceprop.ConfigValue
            Add-Content -Path $path "EXEC sp_configure '$displayname' , $configvalue; RECONFIGURE WITH OVERRIDE"
        }
        $server.Configuration.ShowAdvancedOptions.ConfigValue = $false
        $server.ConnectionContext.ExecuteNonQuery("RECONFIGURE WITH OVERRIDE") | Out-Null
        return $path
    }
    
    END
    {
        $server.ConnectionContext.Disconnect()
        
        If ($Pscmdlet.ShouldProcess("console", "Showing finished message"))
        {
            Write-Output "Server configuration export finished"
        }
    }
}

Function Import-SqlSpConfigure
{
 <#
            .SYNOPSIS
              Updates sp_configure settings on destination server.

            .EXAMPLE
                Import-SqlSpConfigure sqlserver sqlcluster $SourceSqlCredential $DestinationSqlCredential
    

            .EXAMPLE
                Import-SqlSpConfigure -SqlServer sqlserver -Path .\spconfig.sql -SqlCredential $SqlCredential
    
            .OUTPUTS
                $true if success
                $false if failure

#>

    [CmdletBinding(DefaultParameterSetName = "Default", SupportsShouldProcess = $true)]
    param (
        [object]$Source,
        [object]$Destination,
        [System.Management.Automation.PSCredential]$SourceSqlCredential,
        [System.Management.Automation.PSCredential]$DestinationSqlCredential,
        [object]$SqlServer,
        [string]$Path,
        [System.Management.Automation.PSCredential]$SqlCredential,
        [switch]$Force
        
    )
    BEGIN {
    
        if ($Path.length -eq 0)
        {
            $sourceserver = Connect-SqlServer -SqlServer $Source -SqlCredential $SourceSqlCredential
            $destserver = Connect-SqlServer -SqlServer $Destination -SqlCredential $DestinationSqlCredential
            
            $source = $sourceserver.DomainInstanceName
            $destination = $destserver.DomainInstanceName
        } else {
            $server = Connect-SqlServer -SqlServer $SqlServer -SqlCredential $SqlCredential
            if ((Test-Path $Path) -eq $false) { throw "File Not Found" }
        }
    
    }
    PROCESS
    {
        
        if ($Path.length -eq 0)
        {
            
            If ($Pscmdlet.ShouldProcess($destination, "Export sp_configure"))
            {
                $sqlfilename = Export-SqlSpConfigure $sourceserver
            }
            
            if ($sourceserver.versionMajor -ne $destserver.versionMajor -and $force -eq $false)
            {
                Write-Warning "Source SQL Server major version and Destination SQL Server major version must match for sp_configure migration. Use -Force to override this precaution or check the exported sql file, $sqlfilename, and run manually."
                return
            }
            
            If ($Pscmdlet.ShouldProcess($destination, "Execute sp_configure"))
            {
                $sourceserver.Configuration.ShowAdvancedOptions.ConfigValue = $true
                $sourceserver.ConnectionContext.ExecuteNonQuery("RECONFIGURE WITH OVERRIDE") | Out-Null
                $destserver.Configuration.ShowAdvancedOptions.ConfigValue = $true
                $destserver.ConnectionContext.ExecuteNonQuery("RECONFIGURE WITH OVERRIDE") | Out-Null
                
                $destprops = $destserver.Configuration.Properties
                
                foreach ($sourceprop in $sourceserver.Configuration.Properties)
                {
                    $displayname = $sourceprop.DisplayName
                    
                    $destprop = $destprops | where-object{ $_.Displayname -eq $displayname }
                    if ($destprop -ne $null)
                    {
                        try
                        {
                            $destprop.configvalue = $sourceprop.configvalue
                            $destserver.ConnectionContext.ExecuteNonQuery("RECONFIGURE WITH OVERRIDE") | Out-Null
                            Write-Output "updated $($destprop.displayname) to $($sourceprop.configvalue)"
                        }
                        catch { Write-Error "Could not $($destprop.displayname) to $($sourceprop.configvalue). Feature may not be supported." }
                    }
                }
                try { $destserver.Configuration.Alter() }
                catch { $needsrestart = $true }
                
                $sourceserver.Configuration.ShowAdvancedOptions.ConfigValue = $false
                $sourceserver.ConnectionContext.ExecuteNonQuery("RECONFIGURE WITH OVERRIDE") | Out-Null
                $destserver.Configuration.ShowAdvancedOptions.ConfigValue = $false
                $destserver.ConnectionContext.ExecuteNonQuery("RECONFIGURE WITH OVERRIDE") | Out-Null
                
                if ($needsrestart -eq $true)
                {
                    Write-Warning "Some configuration options will be updated once SQL Server is restarted."
                }
                else { Write-Output "Configuration option has been updated." }
            }
            
            If ($Pscmdlet.ShouldProcess($destination, "Removing temp file"))
            {
                Remove-Item $sqlfilename -ErrorAction SilentlyContinue
            }
            
        }
        else
        {
            If ($Pscmdlet.ShouldProcess($destination, "Importing sp_configure from $Path"))
            {    
                $server.Configuration.ShowAdvancedOptions.ConfigValue = $true
                $sql = Get-Content $Path
                foreach ($line in $sql)
                {
                    try
                    {
                        $server.ConnectionContext.ExecuteNonQuery($line) | Out-Null; Write-Output "Successfully executed $line"
                    }
                    catch
                    {
                        Write-Error "$line failed. Feature may not be supported."
                    }
                }
                $server.Configuration.ShowAdvancedOptions.ConfigValue = $false
                Write-Warning "Some configuration options will be updated once SQL Server is restarted."
            }
        }
    }
    END
    {
        if ($Path.length -gt 0) { 
            $server.ConnectionContext.Disconnect() 
        } else {
            $sourceserver.ConnectionContext.Disconnect() 
            $destserver.ConnectionContext.Disconnect() 
        }
    
        If ($Pscmdlet.ShouldProcess("console", "Showing finished message"))
        {
            Write-Output "SQL Server configuration options migration finished"
        }
    }
}