functions/Copy-DbaSpConfigure.ps1

function Copy-DbaSpConfigure {
    <#
        .SYNOPSIS
            Copy-DbaSpConfigure migrates configuration values from one SQL Server to another.
 
        .DESCRIPTION
            By default, all configuration values are copied. The -ConfigName parameter is auto-populated for command-line completion and can be used to copy only specific configs.
 
        .PARAMETER Source
            Source SQL Server. You must have sysadmin access and server version must be SQL Server version 2000 or greater.
 
        .PARAMETER SourceSqlCredential
            Allows you to login to servers using SQL Logins as opposed to Windows Auth/Integrated/Trusted. To use:
 
            $scred = Get-Credential, then pass $scred object to the -SourceSqlCredential parameter.
 
            Windows Authentication will be used if DestinationSqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials.
            To connect as a different Windows user, run PowerShell as that user.
 
        .PARAMETER Destination
            Destination Sql Server. You must have sysadmin access and server version must be SQL Server version 2000 or greater.
 
        .PARAMETER DestinationSqlCredential
            Allows you to login to servers using SQL Logins as opposed to Windows Auth/Integrated/Trusted. To use:
 
            $dcred = Get-Credential, then pass this $dcred to the -DestinationSqlCredential parameter.
 
            Windows Authentication will be used if DestinationSqlCredential is not specified. SQL Server does not accept Windows credentials being passed as credentials.
            To connect as a different Windows user, run PowerShell as that user.
 
        .PARAMETER ConfigName
            The ConfigName(s) to process - this list is auto-populated from the server. If unspecified, all ConfigNames will be processed.
 
        .PARAMETER ExcludeConfigName
            The ConfigName(s) to exclude - this list is auto-populated from the server
 
        .PARAMETER WhatIf
            Shows what would happen if the command were to run. No actions are actually performed.
 
        .PARAMETER Confirm
            Prompts you for confirmation before executing any changing operations within the command.
 
        .PARAMETER Silent
            Use this switch to disable any kind of verbose messages
 
        .NOTES
            Tags: Migration, Configure, SpConfigure
            Author: Chrissy LeMaire (@cl), netnerds.net
            Requires: sysadmin access on SQL Servers
 
            Website: https://dbatools.io
            Copyright: (C) Chrissy LeMaire, clemaire@gmail.com
            License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0
 
        .LINK
            https://dbatools.io/Copy-DbaSpConfigure
 
        .EXAMPLE
            Copy-DbaSpConfigure -Source sqlserver2014a -Destination sqlcluster
 
            Copies all sp_configure settings from sqlserver2014a to sqlcluster
 
        .EXAMPLE
            Copy-DbaSpConfigure -Source sqlserver2014a -Destination sqlcluster -ConfigName DefaultBackupCompression, IsSqlClrEnabled -SourceSqlCredential $cred -Force
 
            Updates the values for two configs, the IsSqlClrEnabled and DefaultBackupCompression, from sqlserver2014a to sqlcluster, using SQL credentials for sqlserver2014a and Windows credentials for sqlcluster.
 
        .EXAMPLE
            Copy-DbaSpConfigure -Source sqlserver2014a -Destination sqlcluster -ExcludeConfigName DefaultBackupCompression, IsSqlClrEnabled
 
            Updates all configs except for IsSqlClrEnabled and DefaultBackupCompression, from sqlserver2014a to sqlcluster.
 
        .EXAMPLE
            Copy-DbaSpConfigure -Source sqlserver2014a -Destination sqlcluster -WhatIf
 
            Shows what would happen if the command were executed.
    #>

    [CmdletBinding(DefaultParameterSetName = "Default", SupportsShouldProcess = $true)]
    param (
        [parameter(Mandatory = $true)]
        [DbaInstanceParameter]$Source,
        [PSCredential]
        $SourceSqlCredential,
        [parameter(Mandatory = $true)]
        [DbaInstanceParameter]$Destination,
        [PSCredential]
        $DestinationSqlCredential,
        [object[]]$ConfigName,
        [object[]]$ExcludeConfigName,
        [switch]$Silent
    )

    begin {

        $sourceServer = Connect-SqlInstance -SqlInstance $Source -SqlCredential $SourceSqlCredential
        $destServer = Connect-SqlInstance -SqlInstance $Destination -SqlCredential $DestinationSqlCredential

        $source = $sourceServer.DomainInstanceName
        $destination = $destServer.DomainInstanceName
    }
    process {

        $sourceProps = Get-DbaSpConfigure -SqlInstance $sourceServer
        $destProps = Get-DbaSpConfigure -SqlInstance $destServer

        foreach ($sourceProp in $sourceProps) {
            $displayName = $sourceProp.DisplayName
            $sConfigName = $sourceProp.ConfigName
            $sConfiguredValue = $sourceProp.ConfiguredValue
            $requiresRestart = $sourceProp.IsDynamic

            $copySpConfigStatus = [pscustomobject]@{
                SourceServer      = $sourceServer.Name
                DestinationServer = $destServer.Name
                Name              = $sConfigName
                Type              = $null
                Status            = $null
                Notes             = $null
                DateTime          = [DbaDateTime](Get-Date)
            }

            if ($ConfigName -and $sConfigName -notin $ConfigName -or $sConfigName -in $ExcludeConfigName ) {
                continue
            }

            $destProp = $destProps | Where-Object ConfigName -eq $sConfigName
            if (!$destProp) {
                Write-Message -Level Warning -Message "Configuration $sConfigName ('$displayName') does not exist on the destination instance."

                $copySpConfigStatus.Status = "Skipped"
                $copySpConfigStatus.Notes = "Configuration does not exist on destination"
                $copySpConfigStatus
                continue
            }

            if ($Pscmdlet.ShouldProcess($destination, "Updating $sConfigName [$displayName]")) {
                try {
                    $destOldConfigValue = $destProp.ConfiguredValue

                    $result = Set-DbaSpConfigure -SqlInstance $destServer -ConfigName $sConfigName -Value $sConfiguredValue -Silent -Mode 'Lazy'
                    if ($result) {
                        Write-Message -Level Verbose -Message "Updated $($destProp.ConfigName) ($($destProp.DisplayName)) from $destOldConfigValue to $sConfiguredValue"
                    }

                    if ($requiresRestart -eq $false) {
                        Write-Message -Level Warning -Message "Configuration option $sConfigName ($displayName) requires restart."
                        $copySpConfigStatus.Notes = "Requires restart"
                    }
                    $copySpConfigStatus.Status = "Successful"
                    $copySpConfigStatus
                }
                catch {
                    $copySpConfigStatus.Status = "Failed"
                    $copySpConfigStatus.Notes = $_.Exception
                    $copySpConfigStatus

                    Stop-Function -Message "Could not set $($destProp.ConfigName) to $sConfiguredValue." -Target $sConfigName -ErrorRecord $_
                }
            }
        }
    }
    end {
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -Silent:$false -Alias Copy-SqlSpConfigure
    }
}