functions/Get-DbaErrorLogConfig.ps1

function Get-DbaErrorLogConfig {
    <#
    .SYNOPSIS
        Pulls the configuration for the ErrorLog on a given SQL Server instance
 
    .DESCRIPTION
        Pulls the configuration for the ErrorLog on a given SQL Server instance.
 
        Includes error log path, number of log files configured and size (SQL Server 2012+ only)
 
    .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: Instance, ErrorLog
        Author: Shawn Melton (@wsmelton), https://wsmelton.github.io
 
        Website: https://dbatools.io
        Copyright: (c) 2018 by dbatools, licensed under MIT
        License: MIT https://opensource.org/licenses/MIT
 
    .LINK
        https://dbatools.io/Get-DbaErrorLogConfig
 
    .EXAMPLE
        PS C:\> Get-DbaErrorLogConfig -SqlInstance server2017,server2014
 
        Returns error log configuration for server2017 and server2014
 
    #>

    [cmdletbinding()]
    param (
        [Parameter(ValueFromPipeline, Mandatory)]
        [DbaInstanceParameter[]]$SqlInstance,
        [PSCredential]$SqlCredential,
        [switch]$EnableException
    )
    process {
        foreach ($instance in $SqlInstance) {
            try {
                $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $SqlCredential
            } catch {
                Stop-Function -Message "Failure" -Category ConnectionError -ErrorRecord $_ -Target $instance -Continue
            }

            $numLogs = $server.NumberOfLogFiles
            $logSize =
            if ($server.VersionMajor -ge 11) {
                [dbasize]($server.ErrorLogSizeKb * 1024)
            } else {
                $null
            }

            [PSCustomObject]@{
                ComputerName = $server.ComputerName
                InstanceName = $server.ServiceName
                SqlInstance  = $server.DomainInstanceName
                LogCount     = $numLogs
                LogSize      = $logSize
                LogPath      = $server.ErrorLogPath
            }
        }
    }
}