试试

LanMountainDesktop.Launcher/Services/Commands.cs

@@ -89,7 +89,7 @@ internal static class Commands
         return context.SubCommand.ToLowerInvariant() switch
         {
             "check" => updateEngine.CheckPendingUpdate(),
-            "apply" => updateEngine.ApplyPendingUpdate(),
+            "apply" => await updateEngine.ApplyPendingUpdateAsync().ConfigureAwait(false),
             "rollback" => updateEngine.RollbackLatest(),
             "download" => await updateEngine.DownloadAsync(
                 context.GetOption("manifest-url") ?? throw new InvalidOperationException("Missing --manifest-url."),

LanMountainDesktop.Launcher/Services/DeferredSplashStageReporter.cs

@@ -0,0 +1,32 @@
+using Avalonia.Threading;
+using LanMountainDesktop.Launcher.Views;
+
+namespace LanMountainDesktop.Launcher.Services;
+
+internal sealed class DeferredSplashStageReporter : ISplashStageReporter
+{
+    private ISplashStageReporter? _inner;
+    private readonly List<(string Stage, string Message)> _pending = [];
+
+    public void SetInner(ISplashStageReporter inner)
+    {
+        _inner = inner;
+        foreach (var (stage, message) in _pending)
+        {
+            _inner.Report(stage, message);
+        }
+        _pending.Clear();
+    }
+
+    public void Report(string stage, string message)
+    {
+        if (_inner is not null)
+        {
+            _inner.Report(stage, message);
+        }
+        else
+        {
+            _pending.Add((stage, message));
+        }
+    }
+}

LanMountainDesktop.Launcher/Services/LauncherFlowCoordinator.cs

@@ -13,7 +13,6 @@ internal sealed class LauncherFlowCoordinator
     private readonly UpdateEngineService _updateEngine;
     private readonly UpdateCheckService _updateCheckService;
     private readonly PluginInstallerService _pluginInstallerService;
-    private readonly ISplashStageReporter _splashStageReporter;
     private readonly IReadOnlyList<IOobeStep> _oobeSteps;
 
     public LauncherFlowCoordinator(
@@ -30,7 +29,6 @@ internal sealed class LauncherFlowCoordinator
         _updateEngine = updateEngine;
         _updateCheckService = updateCheckService;
         _pluginInstallerService = pluginInstallerService;
-        _splashStageReporter = new NullSplashStageReporter();
         _oobeSteps = [new WelcomeOobeStep(_oobeStateService)];
     }
 
@@ -41,7 +39,6 @@ internal sealed class LauncherFlowCoordinator
             // 清理待删除的旧版本
             _deploymentLocator.CleanupDestroyedDeployments();
 
-            _splashStageReporter.Report("bootstrap", "bootstrap");
             if (_oobeStateService.IsFirstRun())
             {
                 foreach (var step in _oobeSteps)
@@ -57,16 +54,18 @@ internal sealed class LauncherFlowCoordinator
                 return window;
             });
 
+            var reporter = (ISplashStageReporter)splashWindow;
+
             try
             {
-                _splashStageReporter.Report("silentUpdate", "update");
-                var updateResult = _updateEngine.ApplyPendingUpdate();
+                reporter.Report("silentUpdate", "update");
+                var updateResult = await _updateEngine.ApplyPendingUpdateAsync().ConfigureAwait(false);
                 if (!updateResult.Success)
                 {
                     return updateResult;
                 }
 
-                _splashStageReporter.Report("pluginTasks", "plugins");
+                reporter.Report("pluginTasks", "plugins");
                 var pluginsDir = _context.GetOption("plugins-dir")
                                  ?? Path.Combine(_deploymentLocator.GetAppRoot(), "plugins");
                 var queueResult = new PluginUpgradeQueueService(_pluginInstallerService).ApplyPendingUpgrades(pluginsDir);
@@ -75,7 +74,7 @@ internal sealed class LauncherFlowCoordinator
                     return queueResult;
                 }
 
-                _splashStageReporter.Report("launchHost", "launch");
+                reporter.Report("launchHost", "launch");
                 var hostResult = LaunchHost();
                 if (!hostResult.Success)
                 {
@@ -192,13 +191,4 @@ internal sealed class LauncherFlowCoordinator
             }
         }
     }
-
-    private sealed class NullSplashStageReporter : ISplashStageReporter
-    {
-        public void Report(string stage, string message)
-        {
-            _ = stage;
-            _ = message;
-        }
-    }
 }

LanMountainDesktop.Launcher/Services/UpdateEngineService.cs

@@ -110,7 +110,7 @@ internal sealed class UpdateEngineService
         };
     }
 
-    public LauncherResult ApplyPendingUpdate()
+    public async Task<LauncherResult> ApplyPendingUpdateAsync()
     {
         Directory.CreateDirectory(_incomingRoot);
         Directory.CreateDirectory(_snapshotsRoot);
@@ -136,7 +136,7 @@ internal sealed class UpdateEngineService
             return Failed("update.apply", "signature_failed", verifyResult.Message);
         }
 
-        var fileMapText = File.ReadAllText(fileMapPath);
+        var fileMapText = await File.ReadAllTextAsync(fileMapPath);
         var fileMap = JsonSerializer.Deserialize<SignedFileMap>(fileMapText);
         if (fileMap is null || fileMap.Files.Count == 0)
         {