PowerShell Redefine Write-Host, Write-Output for Logging

logwriter.ps1

# PowerShell

Set-StrictMode -Version 2.0
Set-PSDebug -Trace 0

$ErrorActionPreference = 'STOP'

function Register-LogWriter {
    <#
      .SYNOPSIS
	Create a new writer around the equivalent function under Microsoft.PowerShell.Utility

      .EXAMPLE
      Register-LogWriter -Function Write-Host
      Write-Host "Message in a bottle"  # Log timestamps automatically prepended
    #>
    [cmdletbinding()] param (
        [Parameter(Mandatory,ValueFromPipeline)]
        $Function
    )
    $Code = {
        [cmdletbinding()] param (
          [Parameter(Mandatory,ValueFromPipeline)]
          $String
        )
       BEGIN {
          $Hostname = [System.Net.Dns]::GetHostName()
       }
       PROCESS {
         $TimeStamp = Get-Date -Format "yyyy-MM-ddTHH:MM:ss.ffff"
         iex "Microsoft.PowerShell.Utility\$Function '$TimeStamp ${Hostname}: $string'"
       }
    }.GetNewClosure()
    New-Item -Path function: -Name "script:$Function" -Value $Code -Force | Out-Null
}

Register-LogWriter -Function Write-Host
Register-LogWriter -Function Write-Output
Register-LogWriter -Function Write-Verbose

# Quick Tests
Write-Host "Host"
sleep 0.6
Write-Output "Output"
sleep 0.6
Write-Verbose "Verbose" -Verbose
sleep 0.6
"oo"

"Host"    | Write-Host
"Output"  | Write-Output
"Verbose" | Write-Verbose -Verbose

.\logwriter.ps1
2022-12-14T18:12:39.2888 VM3890715E: Host
2022-12-14T18:12:39.9112 VM3890715E: Output
VERBOSE: 2022-12-14T18:12:40.5280 VM3890715E: Verbose
oo
2022-12-14T18:12:41.1538 VM3890715E: Host
2022-12-14T18:12:41.1708 VM3890715E: Output
VERBOSE: 2022-12-14T18:12:41.1802 VM3890715E: Verbose