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Shuttle.Core.Log4Net 

PM> Install-Package Shuttle.Core.Log4Net

Log4Net ILog implementation used by the Log class in the Shuttle.Core.Logging assembly.

Usage

Add a reference to the Shuttle.Core.Log4Net package and then assign a new Log4NetLog to the Log as follows:

.NET 4.6+ 

Log.Assign(new Log4NetLog(LogManager.GetLogger(typeof(Program))));

.NET Core 2.0+

The .NET Core 1.3 implementation provided by Log4Net does not make use of the application configuration file as it only appeared again in .NET Core 2.0. A custom configuration file has to be used in the meantime.

Log.Assign(new Log4NetLog(LogManager.GetLogger(typeof(Program), new FileInfo("log4net.config"))));

When assigning the logger always use the Log4NetLog with the FileInfo overload to perform the configuration; else nothing will log.

Configuration

For .NET Core you'll need to either use a custom configuration file (not the application configuration file) or reference the System.Configuration.ConfigurationManager. Referencing the Shuttle.Core.Configuration package should also do the trick.

Since this implementation wraps the Log4Net log you would use the Log4Net configuration options.

Here is a sample configuration but there are many examples online:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <configSections>
        <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
    </configSections>

    <log4net>
        <appender name="ConsoleAppender" type="log4net.Appender.ColoredConsoleAppender">
            <layout type="log4net.Layout.PatternLayout">
                <conversionPattern value="%d [%t] %-5p %c - %m%n"/>
            </layout>
        </appender>
        <appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
            <file value="logs\\program"/>
            <appendToFile value="true"/>
            <rollingStyle value="Composite"/>
            <maxSizeRollBackups value="10"/>
            <maximumFileSize value="100000KB"/>
            <datePattern value="-yyyyMMdd.'log'"/>
            <param name="StaticLogFileName" value="false"/>
            <layout type="log4net.Layout.PatternLayout">
                <conversionPattern value="%d [%t] %-5p %c - %m%n"/>
            </layout>
        </appender>
        <root>
            <level value="TRACE"/>
            <appender-ref ref="ConsoleAppender"/>
            <appender-ref ref="RollingFileAppender"/>
        </root>
    </log4net>
</configuration>