增加微信小程序

Assets/00.StaryEvoTools/WechatFileSystem/Operation/WXFSClearUnusedBundleFilesAsync.cs

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+#if UNITY_WEBGL && WEIXINMINIGAME
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using YooAsset;
+using WeChatWASM;
+
+internal class WXFSClearUnusedBundleFilesAsync : FSClearCacheFilesOperation
+{
+    private enum ESteps
+    {
+        None,
+        GetUnusedCacheFiles,
+        WaitingSearch,
+        ClearUnusedCacheFiles,
+        Done,
+    }
+
+    private readonly WechatFileSystem _fileSystem;
+    private readonly PackageManifest _manifest;
+    private List<string> _unusedCacheFiles = new List<string>(1000);
+    private int _unusedFileTotalCount = 0;
+    private ESteps _steps = ESteps.None;
+
+    internal WXFSClearUnusedBundleFilesAsync(WechatFileSystem fileSystem, PackageManifest manifest)
+    {
+        _fileSystem = fileSystem;
+        _manifest = manifest;
+    }
+    internal override void InternalStart()
+    {
+        _steps = ESteps.GetUnusedCacheFiles;
+    }
+    internal override void InternalUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.GetUnusedCacheFiles)
+        {
+            _steps = ESteps.WaitingSearch;
+
+            // 说明：__GAME_FILE_CACHE/yoo/ 目录下包含所有的资源文件和清单文件
+            var fileSystemMgr = _fileSystem.GetFileSystemMgr();
+            var statOption = new WXStatOption();
+            statOption.path = _fileSystem.FileRoot;
+            statOption.recursive = true;
+            statOption.success = (WXStatResponse response) =>
+            {
+                foreach (var fileStat in response.stats)
+                {
+                    // 如果是目录文件
+                    string fileExtension = Path.GetExtension(fileStat.path);
+                    if (string.IsNullOrEmpty(fileExtension))
+                        continue;
+
+                    // 如果是资源清单
+                    //TODO 默认的清单文件格式
+                    if (fileExtension == ".bytes" || fileExtension == ".hash")
+                        continue;
+
+                    // 注意：适配不同的文件命名方式！
+                    string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(fileStat.path);
+                    string bundleGUID = fileNameWithoutExtension.Split('_').Last();
+                    if (_manifest.TryGetPackageBundleByBundleGUID(bundleGUID, out PackageBundle value) == false)
+                    {
+                        string filePath = _fileSystem.FileRoot + fileStat.path;
+                        if (_unusedCacheFiles.Contains(filePath) == false)
+                            _unusedCacheFiles.Add(filePath);
+                    }
+                }
+
+                _steps = ESteps.ClearUnusedCacheFiles;
+                _unusedFileTotalCount = _unusedCacheFiles.Count;
+                YooLogger.Log($"Found unused cache files count : {_unusedFileTotalCount}");
+            };
+            statOption.fail = (WXStatResponse response) =>
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Failed;
+                Error = response.errMsg;
+            };
+            fileSystemMgr.Stat(statOption);
+        }
+
+        if (_steps == ESteps.ClearUnusedCacheFiles)
+        {
+            for (int i = _unusedCacheFiles.Count - 1; i >= 0; i--)
+            {
+                string filePath = _unusedCacheFiles[i];
+                _unusedCacheFiles.RemoveAt(i);
+                WX.RemoveFile(filePath, null);
+
+                if (OperationSystem.IsBusy)
+                    break;
+            }
+
+            if (_unusedFileTotalCount == 0)
+                Progress = 1.0f;
+            else
+                Progress = 1.0f - (_unusedCacheFiles.Count / _unusedFileTotalCount);
+
+            if (_unusedCacheFiles.Count == 0)
+            {
+                _steps = ESteps.Done;
+                Status = EOperationStatus.Succeed;
+            }
+        }
+    }
+}
+#endif