Private/Write-Log.ps1
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function Write-Log { param ( [Parameter(Mandatory=$true,ValueFromPipeline=$true,Position=0)] [string[]]$Message, [ValidateSet('Info','Verbose','Warning','Debug','Error')] [string]$Verbosity = 'Verbose', [string]$TimeStampFormat = 'T', [string]$LogFileLocation = $IP.Log # TODO: Add ParameterSets to simplify usage ) BEGIN { $TimeStamp = Get-Date -Format $TimeStampFormat #TODO: Implement log rotation, daily or after size? if (!(Test-Path $LogFileLocation)) { New-Item $LogFileLocation -ItemType File -Force | Out-Null } } PROCESS { foreach ($M1 in $Message) { # screen output $M = "$TimeStamp $M1" switch ($Verbosity) { 'Verbose' {Write-Verbose $M} 'Warning' {Write-Warning $M} 'Debug' {Write-Debug $M} 'Error' {Write-Error $M} } # log file output if ($LogFileLocation) { "$TimeStamp $($Verbosity.ToUpper()) $Message" | Out-File -LiteralPath $LogFileLocation -Encoding utf8 -Append -Force -WhatIf:$false } } } END { } } Set-Alias -Name wLog -Value Write-Log |