Init-Log.ps1

function Get-LogDir($env)
{	
  $dir = $globalConf.LogDir
  New-Item -Path $dir -ItemType "Directory" -Force | Out-Null
  return $dir
}

function Init-LogFile($env, $stepName)
{    
    $logDir = Get-LogDir $env
    $dateString = Get-Date -Format "yyyyMMdd_HHmmss"
    $stepName = "{0}_{1}" -f $stepName, $dateString
    $file = Join-Path "$logDir" "$stepName.log"
    Log-Info "Log: $file"
    New-Item -Path $file -ItemType "File" -Force | Out-Null
    return $file
}