functions/Get-DbaRepDistributor.ps1

function Get-DbaRepDistributor {
    <#
    .SYNOPSIS
        Gets the information about a replication distributor for a given SQL Server instance.
 
    .DESCRIPTION
        This function locates and enumerates distributor information for a given SQL Server instance.
 
    .PARAMETER SqlInstance
        The target SQL Server instance or instances.
 
    .PARAMETER SqlCredential
        Login to the target instance using alternative credentials. Windows and SQL Authentication supported. Accepts credential objects (Get-Credential)
 
    .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
        Tags: Replication
        Author: William Durkin (@sql_williamd)
 
        Website: https://dbatools.io
        Copyright: (c) 2018 by dbatools, licensed under MIT
        License: MIT https://opensource.org/licenses/MIT
 
    .LINK
        https://dbatools.io/Get-DbaRepDistributor
 
    .EXAMPLE
        PS C:\> Get-DbaRepDistributor -SqlInstance sql2008, sqlserver2012
 
        Retrieve distributor information for servers sql2008 and sqlserver2012.
 
    #>

    [CmdletBinding()]
    param (
        [parameter(Position = 0, Mandatory, ValueFromPipeline)]
        [Alias("ServerInstance", "SqlServer", "SqlServers")]
        [DbaInstanceParameter[]]$SqlInstance,
        [parameter(Position = 1)]
        [PSCredential]$SqlCredential,
        [Alias('Silent')]
        [switch]$EnableException
    )
    begin {
        if ($null -eq [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.RMO")) {
            Stop-Function -Message "Replication management objects not available. Please install SQL Server Management Studio."
        }
    }

    process {
        if (Test-FunctionInterrupt) { return }

        foreach ($instance in $SqlInstance) {

            # connect to the instance
            try {
                $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $SqlCredential -MinimumVersion 9
            } catch {
                Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue
            }

            Write-Message -Level Verbose -Message "Attempting to retrieve distributor information from $instance"

            # Connect to the distributor of the instance
            try {
                $sourceSqlConn = $server.ConnectionContext.SqlConnectionObject
                $distributor = New-Object Microsoft.SqlServer.Replication.ReplicationServer $sourceSqlConn
            } catch {
                Stop-Function -Message "Error occurred while establishing connection to $instance" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue
            }

            Add-Member -Force -InputObject $distributor -MemberType NoteProperty -Name ComputerName -Value $server.ComputerName
            Add-Member -Force -InputObject $distributor -MemberType NoteProperty -Name InstanceName -Value $server.ServiceName
            Add-Member -Force -InputObject $distributor -MemberType NoteProperty -Name SqlInstance -Value $server.DomainInstanceName

            Select-DefaultView -InputObject $distributor -Property ComputerName, InstanceName, SqlInstance, IsPublisher, IsDistributor, DistributionServer, DistributionDatabase, DistributorInstalled, DistributorAvailable, HasRemotePublisher
        }
    }
    end {
        Test-DbaDeprecation -DeprecatedOn "1.0.0" -EnableException:$false -Alias Get-DbaDistributor
    }
}