feat(startup): 支持等待 ContextLoader 启动

CHANGELOG.md

@@ -0,0 +1,15 @@
+# Changelog
+
+本文件记录 `ShrinkContext.AppAdapter` 的包内变更。
+
+## [0.1.4] - 2026-08-28
+
+### Added
+
+- `ShrinkAppLoaderBootstrapper.WaitUntilStartedAsync(CancellationToken)` 支持多个调用方并发等待 ContextLoader 完成启动。
+- `ShrinkAppLoaderBootstrapper.StartError` 暴露启动失败异常。
+
+### Changed
+
+- ContextLoader 启动失败时发布 `ShrinkAppStartFailedEvent`，等待方收到原始异常，不再依赖轮询。
+- 精确依赖 `ShrinkApp.Core 0.1.3`。

CHANGELOG.md.meta

@@ -0,0 +1,7 @@
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Development~/UnityProject/Packages/manifest.json

@@ -11,12 +11,12 @@
   "dependencies": {
     "com.unity.test-framework": "1.1.33",
     "com.cneicy.shrink-context-app-adapter": "file:../../..",
-    "com.cneicy.shrink-app-starter-basic": "0.2.0",
+    "com.cneicy.shrink-app-starter-basic": "0.2.1",
     "com.cneicy.shrink-command": "0.2.0",
-    "com.cneicy.shrink-command-integration-app": "0.1.1",
-    "com.cneicy.shrink-datasaver-integration-app": "0.1.1",
+    "com.cneicy.shrink-command-integration-app": "0.1.2",
+    "com.cneicy.shrink-datasaver-integration-app": "0.1.2",
     "com.cneicy.shrink-network": "0.2.1",
-    "com.cneicy.shrink-network-integration-app": "0.1.1",
+    "com.cneicy.shrink-network-integration-app": "0.1.2",
     "com.cysharp.unitask": "https://github.com/Cysharp/UniTask.git?path=src/UniTask/Assets/Plugins/UniTask#7c0f199fe0d3fc528024488ccd671e6c7b27745b"
   },
   "testables": [

README.md

@@ -17,11 +17,17 @@ ShrinkApp ↔ ShrinkContext 的桥接层：提供当前默认的 ContextLoader
 `ShrinkAppSettings.hostingMode` 设为 `ContextLoader`（Inspector 或资产字段）。经典项目默认 `ClassicHost`，行为零变化。
 
 ```csharp
+// 场景业务等待宿主完成；失败时直接收到启动异常。
+await ShrinkAppLoaderBootstrapper.WaitUntilStartedAsync(cancellationToken);
+
 // 运行中按模块开关（宿主与其余模块不重启）
 var host = ShrinkAppLoaderBootstrapper.Instance!.Host;
 await host.SetModuleDisabledAsync("shrink.network", true);
 ```
 
+`ShrinkAppLoaderBootstrapper.StartError` 保留最近一次启动异常；启动失败同时发布
+`ShrinkAppStartFailedEvent`。调用方不需要轮询 `Host.IsRunning`。
+
 ## 声明式组合
 
 默认资源名为 `Assets/Resources/ShrinkAppComposition.asset`。组合根先用代码注册安装器或原生组件工厂，Bootstrapper 再应用 Profile；配置文件不能通过类型名反射实例化任意组件。

Runtime/ShrinkAppLoaderBootstrapper.cs

@@ -1,6 +1,9 @@
 #nullable enable
+using System;
+using System.Threading;
 using Cysharp.Threading.Tasks;
 using ShrinkApp;
+using ShrinkEventBus;
 using UnityEngine;
 
 namespace ShrinkContext.AppAdapter
@@ -14,6 +17,7 @@ namespace ShrinkContext.AppAdapter
     public sealed class ShrinkAppLoaderBootstrapper : MonoBehaviour
     {
         private static ShrinkAppLoaderBootstrapper? _instance;
+        private static UniTaskCompletionSource _startupCompletion = new();
 
         /// <summary>
         /// Starter/组合包在 SubsystemRegistration 阶段设置的默认装配表。
@@ -22,9 +26,43 @@ namespace ShrinkContext.AppAdapter
         public static System.Action<ShrinkAppLoaderHost>? DefaultComposition { get; set; }
 
         public static ShrinkAppLoaderBootstrapper? Instance => _instance;
+        public static Exception? StartError { get; private set; }
 
         public ShrinkAppLoaderHost Host { get; private set; } = null!;
 
+        /// <summary>
+        /// 等待 ContextLoader 宿主完成启动。支持多个并发等待者；宿主失败时以原始异常结束。
+        /// </summary>
+        public static async UniTask WaitUntilStartedAsync(CancellationToken cancellationToken = default)
+        {
+            if (_instance?.Host?.IsRunning == true)
+                return;
+            if (StartError != null)
+                throw StartError;
+            if (ShrinkAppSettings.Instance.hostingMode != ShrinkAppHostingMode.ContextLoader)
+            {
+                throw new InvalidOperationException(
+                    "ShrinkAppLoaderBootstrapper requires ShrinkAppHostingMode.ContextLoader.");
+            }
+
+            var task = _startupCompletion.Task;
+            if (cancellationToken.CanBeCanceled)
+                await task.AttachExternalCancellation(cancellationToken);
+            else
+                await task;
+
+            if (StartError != null)
+                throw StartError;
+        }
+
+        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
+        private static void ResetStaticState()
+        {
+            _instance = null;
+            StartError = null;
+            _startupCompletion = new UniTaskCompletionSource();
+        }
+
         [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
         private static void AutoBootstrap()
         {
@@ -45,17 +83,39 @@ namespace ShrinkContext.AppAdapter
             }
 
             _instance = this;
+            StartHostAsync().Forget();
+        }
+
+        private async UniTask StartHostAsync()
+        {
+            try
+            {
                 Host = new ShrinkAppLoaderHost();
                 DefaultComposition?.Invoke(Host);
                 var profile = ShrinkAppCompositionProfile.LoadDefault();
                 if (profile != null)
                     Host.ApplyComposition(profile.ResolveDocument());
                 global::ShrinkApp.ShrinkApp.InitializeForExternalHost(Host.Services);
-            Host.StartAsync().Forget(ex =>
+                await Host.StartAsync();
+                CompleteStartup(null);
+            }
+            catch (Exception ex)
             {
+                CompleteStartup(ex);
+                EventBus.Post(new ShrinkAppStartFailedEvent
+                {
+                    ErrorMessage = ex.Message,
+                    FailedModuleId = string.Empty
+                });
                 Debug.LogException(ex);
                 Debug.LogError("[ShrinkApp.LoaderHost] 启动失败: " + ex.Message);
-            });
+            }
+        }
+
+        private static void CompleteStartup(Exception? error)
+        {
+            StartError = error;
+            _startupCompletion.TrySetResult();
         }
 
         private void OnDestroy()

Tests/ShrinkAppLoaderHostTests.cs

@@ -2,6 +2,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Reflection;
 using Cysharp.Threading.Tasks;
 using NUnit.Framework;
 using ShrinkApp;
@@ -39,6 +40,8 @@ namespace ShrinkContext.AppAdapter.Tests
         [TearDown]
         public void TearDown()
         {
+            ResetBootstrapperState();
+            SetSharedSettings(null);
             if (_settings != null)
                 Object.DestroyImmediate(_settings);
         }
@@ -68,6 +71,33 @@ namespace ShrinkContext.AppAdapter.Tests
             CollectionAssert.AreEquivalent(new[] { "app.a", "app.b" }, probe.Value!.ModuleIds);
         }
 
+        [Test]
+        public void WaitUntilStartedAsync_AllConcurrentWaitersCompleteTogether()
+        {
+            PrepareBootstrapperWaitState();
+
+            var first = ShrinkAppLoaderBootstrapper.WaitUntilStartedAsync();
+            var second = ShrinkAppLoaderBootstrapper.WaitUntilStartedAsync();
+            CompleteBootstrapperStartup(null);
+
+            TestAwait.Run(UniTask.WhenAll(first, second));
+            Assert.IsNull(ShrinkAppLoaderBootstrapper.StartError);
+        }
+
+        [Test]
+        public void WaitUntilStartedAsync_PropagatesObservableStartupError()
+        {
+            PrepareBootstrapperWaitState();
+            var expected = new InvalidOperationException("test startup failure");
+            CompleteBootstrapperStartup(expected);
+
+            var actual = Assert.Throws<InvalidOperationException>(() =>
+                TestAwait.Run(ShrinkAppLoaderBootstrapper.WaitUntilStartedAsync()));
+
+            Assert.AreSame(expected, actual);
+            Assert.AreSame(expected, ShrinkAppLoaderBootstrapper.StartError);
+        }
+
         [Test]
         public void SetModuleDisabled_RetiresModuleAndDependents_EnableReloadsWithoutRestart()
         {
@@ -210,5 +240,36 @@ namespace ShrinkContext.AppAdapter.Tests
 
             public string Value { get; }
         }
+
+        private void PrepareBootstrapperWaitState()
+        {
+            ResetBootstrapperState();
+            _settings.hostingMode = ShrinkAppHostingMode.ContextLoader;
+            SetSharedSettings(_settings);
+        }
+
+        private static void CompleteBootstrapperStartup(Exception? error)
+        {
+            var method = typeof(ShrinkAppLoaderBootstrapper).GetMethod(
+                "CompleteStartup", BindingFlags.NonPublic | BindingFlags.Static);
+            Assert.IsNotNull(method);
+            method!.Invoke(null, new object?[] { error });
+        }
+
+        private static void ResetBootstrapperState()
+        {
+            var method = typeof(ShrinkAppLoaderBootstrapper).GetMethod(
+                "ResetStaticState", BindingFlags.NonPublic | BindingFlags.Static);
+            Assert.IsNotNull(method);
+            method!.Invoke(null, null);
+        }
+
+        private static void SetSharedSettings(ShrinkAppSettings? settings)
+        {
+            var property = typeof(ShrinkAppSettings).GetProperty(
+                nameof(ShrinkAppSettings.Instance), BindingFlags.Public | BindingFlags.Static);
+            Assert.IsNotNull(property);
+            property!.SetValue(null, settings);
+        }
     }
 }

package.json

@@ -1,12 +1,12 @@
 {
   "name": "com.cneicy.shrink-context-app-adapter",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "displayName": "ShrinkContext - ShrinkApp Adapter",
   "description": "把现有 IShrinkAppModuleInstaller 包装为 ShrinkContext 组件：依赖缺失改为等待而非抛错，模块激活由响应式余效应驱动。",
   "unity": "2022.3",
   "dependencies": {
     "com.cneicy.shrink-context-core": "0.1.0",
-    "com.cneicy.shrink-app-core": "0.1.2",
+    "com.cneicy.shrink-app-core": "0.1.3",
     "com.cneicy.shrink-eventbus": "2.0.0",
     "com.cysharp.unitask": "2.5.10",
     "com.unity.modules.jsonserialize": "1.0.0"
@@ -22,5 +22,6 @@
     "name": "cneicy",
     "url": "https://git.crash.work/ShrinkSDK"
   },
-  "documentationUrl": "https://git.crash.work/ShrinkSDK/ShrinkContext.AppAdapter"
+  "documentationUrl": "https://git.crash.work/ShrinkSDK/ShrinkContext.AppAdapter",
+  "changelogUrl": "https://git.crash.work/ShrinkSDK/ShrinkContext.AppAdapter/src/branch/main/CHANGELOG.md"
 }