A Unity logger that writes to files instead of your editor console.

Readme.md

How to use

Read about unity's loggers here, https://docs.unity3d.com/ScriptReference/Logger.html

//create a logger.
var logger = new Logger(new FileLogger("my-log-file"));

// Log something to a log file.
logger.Log(LogType.Log, "Hello World!");

What it looks like

12/10/2019 9:27:39 PM  Log        Resourcepacks/default/assets/minecraft/blockstates/acacia_trapdoor.json
12/10/2019 9:27:39 PM  Log        Inserted acacia_trapdoor with 16 variants.
12/10/2019 9:27:39 PM  Log        Resourcepacks/default/assets/minecraft/blockstates/acacia_wood.json
12/10/2019 9:27:39 PM  Log        Inserted acacia_wood with 3 variants.
12/10/2019 9:27:39 PM  Log        Resourcepacks/default/assets/minecraft/blockstates/activator_rail.json
12/10/2019 9:27:39 PM  Log        Inserted activator_rail with 12 variants.
12/10/2019 9:27:39 PM  Log        Resourcepacks/default/assets/minecraft/blockstates/air.json
12/10/2019 9:27:39 PM  Exception  Newtonsoft.Json.JsonReaderException: Additional text encountered after finished reading JSON content: t. Path '', line 6, position 0.
  at Newtonsoft.Json.JsonTextReader.Read () [0x000c7] in <6e2e10d078be42bcb47e6374224b596a>:0 
  at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType, System.Boolean checkAdditionalContent) [0x000db] in <6e2e10d078be42bcb47e6374224b596a>:0 
  at Newtonsoft.Json.JsonSerializer.DeserializeInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00054] in <6e2e10d078be42bcb47e6374224b596a>:0 
  at Newtonsoft.Json.JsonSerializer.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType) [0x00000] in <6e2e10d078be42bcb47e6374224b596a>:0 
  at Newtonsoft.Json.JsonConvert.DeserializeObject (System.String value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) [0x0002d] in <6e2e10d078be42bcb47e6374224b596a>:0 
  at Newtonsoft.Json.JsonConvert.DeserializeObject[T] (System.String value, Newtonsoft.Json.JsonSerializerSettings settings) [0x00000] in <6e2e10d078be42bcb47e6374224b596a>:0 
  at Newtonsoft.Json.JsonConvert.DeserializeObject[T] (System.String value) [0x00000] in <6e2e10d078be42bcb47e6374224b596a>:0 
  at Pack.ResourcePack.loadAllStates () [0x00051] in /home/tom/Documents/git-repos/Minecraft-Unity3D/Minecraft Client/Assets/_Project/Scripts/ResourcePacks/ResourcePack.cs:107 
12/10/2019 9:27:39 PM  Log        Resourcepacks/default/assets/minecraft/blockstates/allium.json
12/10/2019 9:27:39 PM  Log        Inserted allium with 1 variants.
12/10/2019 9:27:39 PM  Log        Resourcepacks/default/assets/minecraft/blockstates/andesite.json
12/10/2019 9:27:39 PM  Log        Inserted andesite with 1 variants.

FileLogger.cs

// Created by Those45Ninjas.
// https://gist.github.com/Those45Ninjas/0009abf8e028c0c573c16872b3500d00
using UnityEngine;
using System.IO;
using System;

public class FileLogger : ILogHandler
{
	public TextWriter Writer;
	public bool NeedsFlush = false;
	public readonly string LogFile;
	
	public FileLogger(string file)
	{
		// Create the Logs directory if needed.
		if(!Directory.Exists("Logs"))
			Directory.CreateDirectory("Logs");

		// Create or overwrite the log file.
		LogFile = Path.Combine("Logs", file + ".log");
		Writer = File.CreateText(LogFile);
	}

	// Log an exception by calling Log format with the exception as the message.
	public void LogException(Exception exception, UnityEngine.Object context)
	{
		LogFormat(LogType.Exception, context, exception.ToString());

		// Just in case the game crashes, flush on every exception that comes in.
		Writer.Flush();
	}

	public void LogFormat(LogType logType, UnityEngine.Object context, string format, params object[] args)
	{
		// Log the date, type and message.
		Writer.Write(DateTime.Now.ToString().PadRight(23));
		Writer.Write(logType.ToString().PadRight(11));
		Writer.WriteLine(format, args);

		// Update the needs flush flag.
		NeedsFlush = true;
	}

	// Call this every fixed update to keep the log file up to date without incomplete lines.
	public void Flush()
	{
		// Only flush if something was changed.
		if(!NeedsFlush)
			return;

		Writer.Flush();
		NeedsFlush = false;
	}

	// Close the file when this object is cleared.
	~FileLogger()
	{
		Writer.Close();
	}
}