Bamboo.Prevalence.Util.PrevalenceBaseUtil.GetUnnecessaryPrevalenceFiles C# (CSharp) Method

		public static FileInfo[] GetUnnecessaryPrevalenceFiles(PrevalenceEngine engine)
		{
			FileInfo[] all = GetPrevalenceFilesSortedByName(engine);			
			int lastSnapshotIndex = FindLastSnapshot(all);
			if (lastSnapshotIndex > 0)
			{	
				return GetFileInfoRange(all, 0, lastSnapshotIndex);				
			}
			else
			{
				return NullCleanUpPolicy.EmptyFileInfoArray;
			}
		}