Invalidate a manager's installed-package caches when an operation succeeds

src/UniGetUI.PackageEngine.Interfaces/IPackageManager.cs

@@ -85,6 +85,10 @@ public interface IPackageManager
         /// </summary>
         public IReadOnlyList<IPackage> GetInstalledPackages();
 
+        public long InstalledPackagesGeneration { get; }
+
+        public void InvalidateInstalledPackages();
+
         /// <summary>
         /// Refreshes the Package Manager sources/indexes
         /// Each manager MUST implement this method.

src/UniGetUI.PackageEngine.Managers.Generic.NuGet/BaseNuGet.cs

@@ -852,7 +852,14 @@ internal static List<Package> ParseUpdatesResponse(
         }
 
         protected sealed override IReadOnlyList<Package> GetInstalledPackages_UnSafe() =>
-            TaskRecycler<IReadOnlyList<Package>>.RunOrAttach(_getInstalledPackages_UnSafe);
+            TaskRecycler<IReadOnlyList<Package>>.RunOrAttach(
+                ListInstalledPackagesForGeneration,
+                InstalledPackagesGeneration
+            );
+
+        private IReadOnlyList<Package> ListInstalledPackagesForGeneration(
+            long installedPackagesGeneration
+        ) => _getInstalledPackages_UnSafe();
 
         protected abstract IReadOnlyList<Package> _getInstalledPackages_UnSafe();
     }

src/UniGetUI.PackageEngine.Managers.Scoop/Scoop.cs

@@ -440,9 +440,13 @@ protected override IReadOnlyList<Package> GetAvailableUpdates_UnSafe()
         }
 
         protected override IReadOnlyList<Package> GetInstalledPackages_UnSafe() =>
-            TaskRecycler<IReadOnlyList<Package>>.RunOrAttach(_getInstalledPackages_UnSafe, 15);
+            TaskRecycler<IReadOnlyList<Package>>.RunOrAttach(
+                _getInstalledPackages_UnSafe,
+                InstalledPackagesGeneration,
+                15
+            );
 
-        private IReadOnlyList<Package> _getInstalledPackages_UnSafe()
+        private IReadOnlyList<Package> _getInstalledPackages_UnSafe(long installedPackagesGeneration)
         {
             using Process p = new()
             {

src/UniGetUI.PackageEngine.Managers.WinGet/ClientHelpers/NativeWinGetHelper.cs

@@ -356,7 +356,7 @@
                     nativePackage.DefaultInstallVersion.PackageCatalog.Info.Name
                 );
 
                 string? reportedVersion = nativePackage.InstalledVersion.Version;
                 string version = WinGetPkgOperationHelper.ResolveReportedInstalledVersion(
                     nativePackage.Id,
                     reportedVersion
@@ -436,7 +436,7 @@
                     source = Manager.GetLocalSource(nativePackage.Id);
                 }
 
                 string? reportedVersion = nativePackage.InstalledVersion.Version;
                 string version = WinGetPkgOperationHelper.ResolveReportedInstalledVersion(
                     nativePackage.Id,
                     reportedVersion
@@ -475,21 +475,24 @@
 
     private IReadOnlyList<CatalogPackage> GetCachedLocalWinGetPackages(int? cacheSeconds = null)
     {
-        long sourceIndexGeneration = WinGet.SourceIndexGeneration;
+        (long, long) generations = (
+            WinGet.SourceIndexGeneration,
+            Manager.InstalledPackagesGeneration
+        );
 
         return cacheSeconds is null
             ? TaskRecycler<IReadOnlyList<CatalogPackage>>.RunOrAttach(
                 EnumerateLocalWinGetPackages,
-                sourceIndexGeneration
+                generations
             )
             : TaskRecycler<IReadOnlyList<CatalogPackage>>.RunOrAttach(
                 EnumerateLocalWinGetPackages,
-                sourceIndexGeneration,
+                generations,
                 cacheSeconds.Value
             );
     }
 
-    private IReadOnlyList<CatalogPackage> EnumerateLocalWinGetPackages(long sourceIndexGeneration)
+    private IReadOnlyList<CatalogPackage> EnumerateLocalWinGetPackages((long, long) generations)
     {
         return _localPackagesProvider is not null
             ? _localPackagesProvider()

src/UniGetUI.PackageEngine.Operations/PackageOperations.cs

@@ -137,6 +137,7 @@ public PackageOperation(
                 if (status is OperationStatus.Canceled)
                     Package.SetTag(PackageTag.Default);
             };
+            OperationSucceeded += (_, _) => Package.Manager.InvalidateInstalledPackages();
             OperationSucceeded += (_, _) => RecordPendingRebootState();
             OperationSucceeded += (_, _) => HandleSuccess();
             OperationFailed += (_, _) => HandleFailure();

src/UniGetUI.PackageEngine.PackageManagerClasses/Manager/Classes/NullPackageManager.cs

@@ -20,6 +20,10 @@ public class NullPackageManager : IPackageManager
 
         public bool LastInstalledListingFailed => false;
 
+        public long InstalledPackagesGeneration => 0;
+
+        public void InvalidateInstalledPackages() { }
+
         public static NullPackageManager Instance = new();
         public ManagerProperties Properties { get; }
         public ManagerCapabilities Capabilities { get; }

src/UniGetUI.PackageEngine.PackageManagerClasses/Manager/PackageManager.cs

@@ -546,6 +546,13 @@ private IReadOnlyList<IPackage> _getAvailableUpdates(bool SecondAttempt)
         /// </summary>
         public bool LastInstalledListingFailed { get; private set; }
 
+        private long _installedPackagesGeneration;
+
+        public long InstalledPackagesGeneration => Volatile.Read(ref _installedPackagesGeneration);
+
+        public void InvalidateInstalledPackages() =>
+            Interlocked.Increment(ref _installedPackagesGeneration);
+
         public IReadOnlyList<IPackage> GetInstalledPackages()
         {
             LastInstalledListingFailed = false;

src/UniGetUI.PackageEngine.Tests/PackageOperationsTests.cs

@@ -544,6 +544,27 @@ private static Func<bool> ReportsWaitingOnTheGate(AbstractOperation operation)
         return () => reported;
     }
 
+    [Fact]
+    public async Task ASuccessfulOperationInvalidatesTheInstalledPackagesOfItsManager()
+    {
+        if (!OperatingSystem.IsWindows())
+            return;
+
+        var manager = CreateSlowProcessManager(serializesOperations: false);
+        InitializeLoaders();
+        long generationBefore = manager.InstalledPackagesGeneration;
+        using var operation = new UpdatePackageOperation(
+            new PackageBuilder().WithManager(manager).WithId("updated").Build(),
+            new InstallOptions(),
+            IgnoreParallelInstalls: true
+        );
+
+        await operation.MainThread().WaitAsync(TimeSpan.FromSeconds(30));
+
+        Assert.Equal(OperationStatus.Succeeded, operation.Status);
+        Assert.NotEqual(generationBefore, manager.InstalledPackagesGeneration);
+    }
+
     [Fact]
     public async Task OperationsOfASerializingManagerNeverRunTheirProcessesConcurrently()
     {

src/UniGetUI.PackageEngine.Tests/WinGetManagerTests.cs

@@ -900,6 +900,31 @@ public void NativeWinGetHelperReusesTheCatalogSnapshotWhileTheSourceIndexIsUncha
         Assert.Equal(1, snapshots);
     }
 
+    [Fact]
+    public void NativeWinGetHelperTakesAFreshSnapshotOnceTheInstalledPackagesAreInvalidated()
+    {
+        WinGet.MarkSourceIndexRefreshed();
+        var manager = new TestableWinGet();
+        int snapshots = 0;
+        var helper = new NativeWinGetHelper(
+            manager,
+            systemCliHelperFactory: null,
+            skipInitialization: true,
+            localPackagesProvider: () =>
+            {
+                snapshots++;
+                return [];
+            }
+        );
+
+        helper.GetInstalledPackages_UnSafe();
+        manager.InvalidateInstalledPackages();
+        helper.GetInstalledPackages_UnSafe();
+        helper.GetAvailableUpdates_UnSafe();
+
+        Assert.Equal(2, snapshots);
+    }
+
     [Fact]
     public void RefreshPackageIndexesAdvancesTheSourceIndexGenerationWhenTheCliCallFails()
     {

src/UniGetUI.Tests/CatalogEditorTests.cs

@@ -665,6 +665,8 @@ private sealed class SearchManager : IPackageManager
         public bool IdentifiersAreQuotedOnCommandLine => true;
         public bool LastUpdatesListingFailed => false;
         public bool LastInstalledListingFailed => false;
+        public long InstalledPackagesGeneration => 0;
+        public void InvalidateInstalledPackages() { }
         public int? CompareVersions(string versionA, string versionB) => throw new NotSupportedException();
         public void Initialize() => throw new NotSupportedException();
         public bool IsEnabled() => true;