Question

我正在开发Visual Studio扩展，并且我想在NuGet安装或卸载后执行一些逻辑。有没有我可以监控的事件？我在IVsHierarchy界面中尝试过OnItemAdded和OnItemDeleted，但问题是每次安装/卸载时它会执行多次，因为要添加或删除到解决方案的文件数量。我想在NuGet过程完成后触发事件。

Answer 1

它可以像下面的代码一样简单。只需确保使用https://dotnet.myget.org/F/nuget-build/api/v3/index.json作为Nuget Feed即可获得NuGet.VisualStudio最新软件包（v4.0.0-rc3-2137）。

    [Import]
    private IVsPackageInstallerEvents packageInstallerEvents;

    [Import]
    private IVsPackageInstallerProjectEvents packageInstallerProjectEvents;

    private string currentBatchId;

    private Dictionary<string, string> packagesMetadata;

    public void BindNuGetPackageEvents()
    {
        packageInstallerProjectEvents.BatchStart += (projectMetadata) =>
        {
            // preserve current batch id or project name to compare with batch end event
            currentBatchId = projectMetadata.BatchId;
            Console.WriteLine("Current Project Name : " + projectMetadata.ProjectName);
        };

        packageInstallerEvents.PackageInstalled += (metadata) =>
        {
            // package being insalled in current project
            // Save package metadata to use at batch end event
            packagesMetadata.Add(metadata.Id, "installed");
        };

        packageInstallerEvents.PackageUninstalled += (metadata) =>
        {
            // package being uninstalled in current project
            // Save package metadata to use at batch end event
            packagesMetadata.Add(metadata.Id, "uninstalled");
        };

        packageInstallerProjectEvents.BatchEnd += (projectMetadata) =>
        {
            if (currentBatchId == projectMetadata.BatchId)
            {
                // Now you can use your packages metadata saved during packageinstalled or packageuninstalled events
                foreach (var packageName in packagesMetadata.Keys)
                {
                    Console.WriteLine(string.Format("Package {0} was {1}", packageName, packagesMetadata[packageName]));
                }
            }
        };
    }

Answer 2

您可以在Visual Studio中使用NuGet API并侦听BagInstalling或PackageInstalled等NuGet事件。但请确保您在批处理模式下使用这些事件，并且还从NuGet IVsPackageInstallerProjectEvents接口侦听BatchStart和BatchEnd，以便它不会降低NuGet性能。

您可以在NuGet blogpost上找到有关这些API here的更多详细信息。

理想情况下，当您收到BatchStart事件时，您将继续执行IVInPackageInstallerEvents事件，如PackageInstalling，PackageInstalled等，并在收到BatchEnd事件后应用这些事件。

Visual Studio扩展 - NuGet安装/卸载后的事件？

2 个答案: