DevOps.Helper.Functions

0.1.1

Private/Trace-Expression.ps1

function Trace-Expression {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory, Position = 0)][scriptblock]$Expression,
        [Parameter(ValueFromPipeline)][psobject[]]$InputObject,
        [string]$Name
    )

    Write-Group $Name
    $Result = $null
    $stopWatch = New-Object -TypeName 'System.Diagnostics.Stopwatch'
    $stopWatch.Start()
    
    Try {
        if ($InputObject) {
            # Creating the '$_' variable.
            $dollarUn = New-Object -TypeName psvariable -ArgumentList @('_', $InputObject)

            $Result = $Expression.InvokeWithContext($null, $dollarUn, $null)
        }
        else {
            $Result = $Expression.InvokeReturnAsIs()
        }
    }
    Catch {
        If ($_.Exception.InnerException.InnerException.ExitCode -is [int]) {
            exit $_.Exception.InnerException.InnerException.ExitCode
        }
        Else {
            Write-Error $PSItem.ToString()
            exit 1
        }
    }
    Finally {
        $stopWatch.Stop()
        Write-Log "$Name [$($stopWatch.Elapsed.ToString("s\.ff"))s]"
        Write-Group $Name -End
    }

    RETURN $Result
}