NLog Config File and Usage Example

.PowerShell - NLog.md

Use NLog with a Custom XML Configuration File in PowerShell

An_Example_Of_Using_NLog_In_PowerShell.ps1

<# 
This is an example of how to create an NLog logger in Powershell using a specific configuration file.
#>

# Load the config file.
$ne = New-Object NLog.Config.XmlLoggingConfiguration($ConfigPath)
([NLog.LogManager]::Configuration) = $ne

# Set variables used in the config file.
[NLog.LogManager]::Configuration.Variables['prefix'] = $Prefix
[NLog.LogManager]::Configuration.Variables['directory'] = $LogDirectory

# Get the default logger.
$logger = [NLog.LogManager]::GetCurrentClassLogger()

Nlog-Config.xml

<?xml version="1.0" encoding="utf-8"?>

<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.nlog-project.org/schemas/NLog.xsd NLog.xsd" autoReload="true" throwConfigExceptions="true" throwExceptions="false" internalLogLevel="Warn" internalLogFile="c:\temp\nlog-internal.log">

  <!--  See https://github.com/nlog/nlog/wiki/Configuration-file for information on customizing logging rules and outputs. -->
  <targets>
    <target name="logFile" xsi:type="File" fileName="${var:directory}\${var:prefix}${shortdate}.log" maxArchiveFiles="7" archiveAboveSize="100000000" archiveEvery="Day">
      <layout xsi:type="CsvLayout" delimiter="Tab" withHeader="true" quoting="Nothing">
        <column name="Timestamp" layout="${date:universalTime=true:format=o}" />
        <column name="MachineName" layout="${machinename}" />
        <column name="ProcessId" layout="${processId}" />
        <column name="ThreadId" layout="${threadID}" />
        <column name="Level" layout="${level:upperCase=true}" />
        <column name="Message" layout="${message}" />
      </layout>
    </target>

    <!-- <target name="logConsole" xsi:type="ColoredConsole" layout="${level} ${message}" /> -->
  </targets>

  <rules>
    <logger name="*" minlevel="Debug" writeTo="logFile" />
    <!-- Common minlevels: Trace, Debug, Info, etc. -->
  </rules>

</nlog>