evolve ActionScheduler

ActionScheduler.cs

@@ -1,15 +1,16 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Linq;
 
 namespace cake
 {
 	public class ActionScheduler
 	{
-		private Dictionary<TargetGenerateSettings, List<string>> _scheduledActions = new Dictionary<TargetGenerateSettings, List<string>>();
+		private readonly Dictionary<TargetGenerateSettings, HashSet<string>> _scheduledActions = new Dictionary<TargetGenerateSettings, HashSet<string>>();
 
 		public void Add(IEnumerable<string> dependenciesRequiringRegeneration, TargetGenerateSettings tgs)
 		{
-			_scheduledActions.Add(tgs, new List<string>(dependenciesRequiringRegeneration));
+			_scheduledActions.Add(tgs, new HashSet<string>(dependenciesRequiringRegeneration));
 		}
 
 		public TargetGenerateSettings FindJobToRun()
@@ -19,5 +20,14 @@ public TargetGenerateSettings FindJobToRun()
 				_scheduledActions.Remove(findJobToRun);
 			return findJobToRun;
 		}
+
+		public void JobFinished(TargetGenerateSettings finishedJob)
+		{
+			foreach(var outputFile in finishedJob.OutputFiles)
+			{
+				foreach (var deps in _scheduledActions.Values)
+					deps.Remove(outputFile);
+			}
+		}
 	}
 }

Tests/ActionSchedulerTest.cs

@@ -48,5 +48,19 @@ public void SingleActionWithDependenciesRequiringGenerationCannotBeRun()
 			Assert.IsNull(_scheduler.FindJobToRun());
 		}
 
+		[Test]
+		public void ActionWithDependenciesRequiringGenerationCanBeRanWhenDependencyIsGenerated()
+		{
+			var tgs = new TargetGenerateSettings(_action, new[] { "input" }, "output");
+			_scheduler.Add(new[] { "input" }, tgs);
+
+			Assert.IsNull(_scheduler.FindJobToRun());
+
+			var inputGenerator = new TargetGenerateSettings(_action, new string[0], "input");
+			_scheduler.JobFinished(inputGenerator);
+
+			Assert.AreEqual(tgs,_scheduler.FindJobToRun());
+		}
+
 	}
 }