Index: Log.cs
===================================================================
RCS file: /cvsroot/nant/nant/src/NAnt.Core/Log.cs,v
retrieving revision 1.49
diff -u -r1.49 Log.cs
--- Log.cs	3 Dec 2006 13:08:02 -0000	1.49
+++ Log.cs	11 Mar 2008 07:57:04 -0000
@@ -598,6 +598,10 @@
         protected virtual void Log(string message) {
         }
 
+        protected virtual void OutputMessageToConsole(string message, Level messageLevel) {
+            Console.Out.WriteLine(message);
+        }
+
         #endregion Protected Instance Methods
 
         #region Private Instance Methods
@@ -667,7 +671,7 @@
                     string indentedMessage = sb.ToString();
 
                     // output the message to the console
-                    Console.Out.WriteLine(indentedMessage);
+                    OutputMessageToConsole(indentedMessage, e.MessageLevel);
 
                     // if an OutputWriter was set, write the message to it
                     if (OutputWriter != null) {
@@ -734,6 +738,99 @@
         }
     }
 
+    public class ConsoleColorLogger : DefaultLogger {
+        private readonly MessageLevelColorMap levelColorMap = new MessageLevelColorMap();
+
+        public override void BuildStarted(object sender, BuildEventArgs e)
+        {
+            base.BuildStarted(sender, e);
+            levelColorMap.ConfigureUsing(e.Project.Properties, "ConsoleColorLogger");
+        }
+
+        protected override void OutputMessageToConsole(string message, Level messageLevel)
+        {
+            using (new ConsoleColorScope(levelColorMap[messageLevel]))
+            {
+                base.OutputMessageToConsole(message, messageLevel);
+            }
+        }
+    }
+
+    public class MessageLevelColorMap
+    {
+        private readonly IDictionary map = new Hashtable();
+
+        public MessageLevelColorMap()
+        {
+            map[Level.Error] = ConsoleColor.Red;
+            map[Level.Warning] = ConsoleColor.Yellow;
+            map[Level.Info] = Console.ForegroundColor;
+            map[Level.Verbose] = ConsoleColor.DarkGray;
+            map[Level.Debug] = ConsoleColor.Blue;
+        }
+
+        public ConsoleColor this[Level level]
+        {
+            get { return (ConsoleColor)map[level]; }
+        }
+
+        /// <param name="properties">keys and values should both be of type <see cref="string"/> </param>
+        /// <param name="propertyKeyPrefix">property key prefix without the "dot" (example: "some.prefix")</param>
+        public void ConfigureUsing(IDictionary properties, string propertyKeyPrefix)
+        {
+            ConfigureColorForLevel(Level.Error, "error", properties, propertyKeyPrefix);
+            ConfigureColorForLevel(Level.Warning, "warning", properties, propertyKeyPrefix);
+            ConfigureColorForLevel(Level.Info, "info", properties, propertyKeyPrefix);
+            ConfigureColorForLevel(Level.Debug, "debug", properties, propertyKeyPrefix);
+            ConfigureColorForLevel(Level.Verbose, "verbose", properties, propertyKeyPrefix);
+        }
+
+        private void ConfigureColorForLevel(Level level, string propertySuffix, IDictionary properties,
+                                            string propertyKeyPrefix)
+        {
+            string propertyKey = propertyKeyPrefix + "." + propertySuffix;
+            if (!properties.Contains(propertyKey)) return;
+
+            string colorName = (string)properties[propertyKey];
+            map[level] = ParseConsoleColor(colorName);
+        }
+
+        private static ConsoleColor ParseConsoleColor(string colorName)
+        {
+            if (colorName.Equals("default", StringComparison.CurrentCultureIgnoreCase))
+            {
+                return Console.ForegroundColor;
+            }
+
+            try
+            {
+                return (ConsoleColor)Enum.Parse(typeof(ConsoleColor), colorName, true);
+            }
+            catch (ArgumentException)
+            {
+                throw new BuildException(
+                    string.Format("Unrecognized console color:<{0}>. Accepted colors are 'default' and those in this list:<{1}>", colorName,
+                                  "http://msdn2.microsoft.com/en-us/library/system.consolecolor.aspx"));
+            }
+        }
+    }
+
+    public class ConsoleColorScope : IDisposable
+    {
+        private readonly ConsoleColor originalColor;
+
+        public ConsoleColorScope(ConsoleColor newForegroundColor)
+        {
+            originalColor = Console.ForegroundColor;
+            Console.ForegroundColor = newForegroundColor;
+        }
+
+        public void Dispose()
+        {
+            Console.ForegroundColor = originalColor;
+        }
+    }
+
     /// <summary>
     /// Buffers log messages from DefaultLogger, and sends an e-mail with the
     /// results.