40 lines
1.1 KiB
C#
40 lines
1.1 KiB
C#
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using System.Text;
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using NLog;
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using NLog.Targets;
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using LogLevel = NLog.LogLevel;
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namespace OliverBooth.Logging;
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/// <summary>
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/// Represents an NLog target which supports colorful output to stdout.
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/// </summary>
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internal sealed class ColorfulConsoleTarget : TargetWithLayout
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="ColorfulConsoleTarget" /> class.
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/// </summary>
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/// <param name="name">The name of the log target.</param>
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public ColorfulConsoleTarget(string name)
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{
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Name = name;
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}
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/// <inheritdoc />
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protected override void Write(LogEventInfo logEvent)
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{
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var message = new StringBuilder();
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message.Append(Layout.Render(logEvent));
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if (logEvent.Level == LogLevel.Warn)
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Console.ForegroundColor = ConsoleColor.Yellow;
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else if (logEvent.Level == LogLevel.Error || logEvent.Level == LogLevel.Fatal)
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Console.ForegroundColor = ConsoleColor.Red;
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if (logEvent.Exception is { } exception)
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message.Append($": {exception}");
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Console.WriteLine(message);
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Console.ResetColor();
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}
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}
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