functions/Export-DbaRegisteredServer.ps1

#ValidationTags#Messaging,FlowControl,Pipeline,CodeStyle#
function Export-DbaRegisteredServer {
    <#
        .SYNOPSIS
            Exports registered servers and registered server groups to file
 
        .DESCRIPTION
            Exports registered servers and registered server groups to file
 
        .PARAMETER SqlInstance
            SQL Server name or SMO object representing the SQL Server to connect to.
 
        .PARAMETER SqlCredential
            Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential)
 
        .PARAMETER Group
            Exports a specific group.
 
        .PARAMETER CredentialPersistenceType
            Used to specify how the login and passwords are persisted. Valid values include None, PersistLoginName and PersistLoginNameAndPassword.
 
        .PARAMETER Path
            The path to the exported file. If no path is specified, one will be created.
 
        .PARAMETER InputObject
            Enables piping from Get-DbaRegisteredServer, Get-DbaRegisteredServerGroup, CSVs and other objects.
 
            If importing from CSV or other object, a column named ServerName is required. Optional columns include Name, Description and Group.
 
        .PARAMETER EnableException
            By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.
 
            This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.
 
            Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.
 
        .NOTES
            Author: Chrissy LeMaire (@cl)
            Tags: RegisteredServer, CMS
 
            Website: https://dbatools.io
            Copyright: (C) Chrissy LeMaire, clemaire@gmail.com
            License: MIT https://opensource.org/licenses/MIT
 
        .LINK
            https://dbatools.io/Export-DbaRegisteredServer
 
        .EXAMPLE
           Export-DbaRegisteredServer -SqlInstance sql2008
 
           Exports all Registered Server and Registered Server Groups on sql2008 to an automatically generated file name in the current directory
 
        .EXAMPLE
           Export-DbaRegisteredServer -SqlInstance sql2008 -Group hr\Seattle -Path C:\temp\Seattle.xml
 
           Exports all Registered Server and Registered Server Groups with the Seattle group within the HR group on sql2008 to C:\temp\Seattle.xml
 
        .EXAMPLE
           Get-DbaRegisteredServer -SqlInstance sql2008, sql2012 | Export-DbaRegisteredServer
 
           Exports all registered servers on sql2008 and sql2012. Warning - each one will have its own individual file. Consider piping groups.
 
        .EXAMPLE
           Get-DbaRegisteredServerGroup -SqlInstance sql2008, sql2012 | Export-DbaRegisteredServer
 
           Exports all registered servers on sql2008 and sql2012, organized by group.
    #>

    [CmdletBinding()]
    param (
        [Alias("ServerInstance", "SqlServer")]
        [DbaInstanceParameter[]]$SqlInstance,
        [PSCredential]$SqlCredential,
        [parameter(ValueFromPipeline)]
        [object[]]$InputObject,
        [string]$Path,
        [ValidateSet("None", "PersistLoginName", "PersistLoginNameAndPassword")]
        [string]$CredentialPersistenceType = "None",
        [switch]$EnableException
    )
    begin {
        if ((Test-Bound -ParameterName Path)) {
            if ($Path -notmatch '\\') {
                $Path = ".\$Path"
            }

            $directory = Split-Path $Path
            if (-not (Test-Path $directory)) {
                New-Item -Path $directory -ItemType Directory
            }
        }
        else {
            $timeNow = (Get-Date -uformat "%m%d%Y%H%M%S")
        }
    }
    process {
        foreach ($instance in $SqlInstance) {
            $InputObject += Get-DbaRegisteredServerGroup -SqlInstance $instance -SqlCredential $SqlCredential -Id 1
        }

        foreach ($object in $InputObject) {
            try {
                if ($object -is [Microsoft.SqlServer.Management.RegisteredServers.RegisteredServersStore]) {
                    $object = Get-DbaRegisteredServerGroup -SqlInstance $object.ServerConnection.SqlConnectionObject -Id 1
                }

                if ($object -is [Microsoft.SqlServer.Management.RegisteredServers.RegisteredServer]) {
                    if ((Test-Bound -ParameterName Path -Not)) {
                        $servername = $object.SqlInstance.Replace('\', '$')
                        $regservername = $object.Name.Replace('\', '$')
                        $Path = "$serverName-regserver-$regservername-$timeNow.xml"
                    }
                    $object.Export($Path, $CredentialPersistenceType)
                }
                elseif ($object -is [Microsoft.SqlServer.Management.RegisteredServers.ServerGroup]) {
                    if ((Test-Bound -ParameterName Path -Not)) {
                        $servername = $object.SqlInstance.Replace('\', '$')
                        $regservergroup = $object.Name.Replace('\', '$')
                        $Path = "$serverName-reggroup-$regservergroup-$timeNow.xml"
                    }
                    $object.Export($Path, $CredentialPersistenceType)
                }
                else {
                    Stop-Function -Message "InputObject is not a registered server or server group" -Continue
                }
                Get-ChildItem $Path -ErrorAction Stop
            }
            catch {
                Stop-Function -Message "Failure" -ErrorRecord $_
            }
        }
    }
}