更新Demo

更新Demo

UnityProject/Packages/YooAsset/Runtime/CacheSystem/Operations/ClearUnusedCacheFilesOperation.cs

@@ -0,0 +1,71 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.IO;
+
+namespace YooAsset
+{
+	/// <summary>
+	/// 清理本地包裹未使用的缓存文件
+	/// </summary>
+	public sealed class ClearUnusedCacheFilesOperation : AsyncOperationBase
+	{
+		private enum ESteps
+		{
+			None,
+			GetUnusedCacheFiles,
+			ClearUnusedCacheFiles,
+			Done,
+		}
+
+		private readonly ResourcePackage _package;
+		private List<string> _unusedCacheGUIDs;
+		private int _unusedFileTotalCount = 0;
+		private ESteps _steps = ESteps.None;
+
+		internal ClearUnusedCacheFilesOperation(ResourcePackage package)
+		{
+			_package = package;
+		}
+		internal override void Start()
+		{
+			_steps = ESteps.GetUnusedCacheFiles;
+		}
+		internal override void Update()
+		{
+			if (_steps == ESteps.None || _steps == ESteps.Done)
+				return;
+
+			if (_steps == ESteps.GetUnusedCacheFiles)
+			{
+				_unusedCacheGUIDs = CacheSystem.GetUnusedCacheGUIDs(_package);
+				_unusedFileTotalCount = _unusedCacheGUIDs.Count;
+				YooLogger.Log($"Found unused cache file count : {_unusedFileTotalCount}");
+				_steps = ESteps.ClearUnusedCacheFiles;
+			}
+
+			if (_steps == ESteps.ClearUnusedCacheFiles)
+			{
+				for (int i = _unusedCacheGUIDs.Count - 1; i >= 0; i--)
+				{
+					string cacheGUID = _unusedCacheGUIDs[i];
+					CacheSystem.DiscardFile(_package.PackageName, cacheGUID);
+					_unusedCacheGUIDs.RemoveAt(i);
+
+					if (OperationSystem.IsBusy)
+						break;
+				}
+
+				if (_unusedFileTotalCount == 0)
+					Progress = 1.0f;
+				else
+					Progress = 1.0f - (_unusedCacheGUIDs.Count / _unusedFileTotalCount);
+
+				if (_unusedCacheGUIDs.Count == 0)
+				{
+					_steps = ESteps.Done;
+					Status = EOperationStatus.Succeed;
+				}
+			}
+		}
+	}
+}