Add support for an incrementOnFailure node in the DateLabeller similar to the DefaultLabeller

Author: mlippert

project/core/label/DateLabeller.cs

@@ -49,6 +49,7 @@ public DateLabeller(DateTimeProvider dateTimeProvider)
             this.MonthFormat = "00";
             this.DayFormat = "00";
             RevisionFormat = "000";
+            IncrementOnFailed = false;
         }
         #endregion
 
@@ -84,6 +85,16 @@ public DateLabeller(DateTimeProvider dateTimeProvider)
         [ReflectorProperty("revisionFormat", Required = false)]
         public string RevisionFormat { get; set; }
 
+        /// <summary>
+        /// Determines if the build should be labeled even if it fails.
+        /// So you can examine previous failed builds to determine why
+        /// it failed.
+        /// </summary>
+        /// <version>1.0</version>
+        /// <default>false</default>
+		[ReflectorProperty("incrementOnFailure", Required = false)]
+		public bool IncrementOnFailed { get; set; }
+
         /// <summary>
         /// Generates the specified integration result.	
         /// </summary>
@@ -113,12 +124,15 @@ private Version ParseVersion(DateTime date, IntegrationSummary lastIntegrationSu
 		{
 			try
 			{
-				return new Version(lastIntegrationSummary.LastSuccessfulIntegrationLabel);
+				if (IncrementOnFailed)
+					return new Version(lastIntegrationSummary.Label);
+				else
+					return new Version(lastIntegrationSummary.LastSuccessfulIntegrationLabel);
 			}
 			catch (SystemException)
 			{
 				return new Version(date.Year, date.Month, date.Day, 0);
 			}
 		}
 	}
-}
+}