Write log source when logging preloader logger events in chainloader

Rebase of 9d164bc3b8

BepInEx.Preloader.Core/Logging/ChainloaderLogHelper.cs

@@ -0,0 +1,47 @@
+using System.Diagnostics;
+using System.Linq;
+using BepInEx.Logging;
+
+namespace BepInEx.Preloader.Core.Logging
+{
+	public static class ChainloaderLogHelper
+	{
+		public static void PrintLogInfo(ManualLogSource log)
+		{
+			string consoleTile = $"BepInEx {typeof(Paths).Assembly.GetName().Version} - {Process.GetCurrentProcess().ProcessName}";
+			log.LogMessage(consoleTile);
+
+			if (ConsoleManager.ConsoleActive)
+				ConsoleManager.SetConsoleTitle(consoleTile);
+
+			//See BuildInfoAttribute for more information about this section.
+			object[] attributes = typeof(BuildInfoAttribute).Assembly.GetCustomAttributes(typeof(BuildInfoAttribute), false);
+
+			if (attributes.Length > 0)
+			{
+				var attribute = (BuildInfoAttribute)attributes[0];
+				log.LogMessage(attribute.Info);
+			}
+		}
+
+		public static void RewritePreloaderLogs()
+		{
+			if (PreloaderConsoleListener.LogEvents == null || PreloaderConsoleListener.LogEvents.Count == 0)
+				return;
+
+			// Temporarily disable the console log listener as we replay the preloader logs
+			var logListener = Logger.Listeners.FirstOrDefault(logger => logger is ConsoleLogListener);
+
+			if (logListener != null)
+				Logger.Listeners.Remove(logListener);
+
+			foreach (var preloaderLogEvent in PreloaderConsoleListener.LogEvents)
+			{
+				PreloaderLogger.Log.Log(preloaderLogEvent.Level, $"[{ preloaderLogEvent.Source.SourceName,10}] { preloaderLogEvent.Data}");
+			}
+
+			if (logListener != null)
+				Logger.Listeners.Add(logListener);
+		}
+	}
+}