如何在使用WiX Burn MBA捆绑包进行MajorUpgrade期间检测当前安装的功能

我正在使用WiX 3.7的Burn/Managed Bootstrapper应用程序功能创建一个基于MBA的自定义安装程序。对于我的捆绑包链中的每个包，在执行MinorUpdate时，我可以很容易地检测到哪些包功能已经安装，以确保我在升级期间通过使用引导程序的WiX基类中提供的以下事件来维护这些功能选择：DetectPackageComplete、DetectMsiFeature、DetectRelatedBundle、DetectRelatedMsiPackage、DetectComplete。

但是，在MajorUpgrade期间，我只看到了确定安装了哪些软件包的方法，但没有看到如何确定安装了什么功能，因为DetectMsiFeature事件不会触发我尝试在产品配置中使用MigrateFeatures标志，但似乎不起作用（或者我没有正确使用它）。

在WiX中使用自定义托管引导程序应用程序执行MajorUpgrade时，检测/迁移现有功能的正确方法是什么

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一些文件片段：

注意：如果有帮助的话，我可以提供一个完整的VS解决方案，其中包含所有代码。

捆绑包.wxs：

<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi" xmlns:bal="http://schemas.microsoft.com/wix/BalExtension">
    <Bundle Name="Bootstrapper1"  Version="1.1.0.0" Manufacturer="Knights Who Say Ni" UpgradeCode="e6fbf160-d1d9-4b38-b293-94d60eae876f" Compressed="yes">    
        <BootstrapperApplicationRef Id="ManagedBootstrapperApplicationHost" >
          <Payload SourceFile="$(var.ManagedBootstrapperApplication.TargetPath)" />
          <!-- other files here -->
        </BootstrapperApplicationRef>
        <Chain>      
          <PackageGroupRef Id="NetFx40Web" />
          <MsiPackage SourceFile="$(var.SetupProject1.TargetPath)" EnableFeatureSelection="yes" Vital="yes"  Compressed="yes" />
        </Chain>
    </Bundle>
</Wix>

产品.wxs:

<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
    <Product Id="*" Name="SetupProject1" Language="1033" Codepage="1252"
           Version="1.1.0.0" Manufacturer="Knights Who Say Ni" 
           UpgradeCode="5fcd463a-3287-4fdf-bf00-d5d74baeccda">
        <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />
        <MajorUpgrade AllowSameVersionUpgrades="no" AllowDowngrades="no" MigrateFeatures="yes" DowngradeErrorMessage="Bring me a shrubbery!" />
        <MediaTemplate EmbedCab="yes" />
        <Feature Id="feature_one" Title="Primary Feature" Level="1">      
          <Component Id="CMP_emptyFile1" Guid="{1740AFA6-A98F-482A-B319-A153AA1BEF10}" Directory="INSTALLFOLDER">
            <File Id="file_emptyFile1" Checksum="yes" KeyPath="yes" Source="TextFile1.txt" />
          </Component>      
        </Feature>
        <Feature Id="feature_Two" Title="Optional Feature" Level="2">
          <Component Id="CMP_emptyFile2" Guid="{F0831C98-AF35-4F5E-BE9A-2F5E3ECF893C}" Directory="INSTALLFOLDER">
            <File Id="file_emptyFile2" Checksum="yes" KeyPath="yes" Source="TextFile2.txt"  />
          </Component>
        </Feature>    
    </Product>
</Wix>

自定义引导程序.cs

public class CustomBootstrapperApplication : BootstrapperApplication {        
    protected override void Run() {
            DetectPackageComplete += HandlePackageDetected;
            DetectMsiFeature += HandleFeatureDetected;
            DetectRelatedBundle += HandleExistingBundleDetected;
            DetectRelatedMsiPackage += HandleExistingPackageDetected;
            DetectComplete += HandleDetectComplete;
            this.Engine.Detect();
            //blocks here until DetectComplete fires...
    }
    private void HandleExistingPackageDetected(object sender, DetectRelatedMsiPackageEventArgs e) {
        Log(string.Format("Detected Related Package {2} ({1}) at version {3} which is a {0}",
            e.Operation, e.PackageId, e.ProductCode, e.Version));
    }
    private void HandleExistingBundleDetected(object sender, DetectRelatedBundleEventArgs e) {
        Log(string.Format("Detected Related {2} Bundle {0} at version {1} which is a {3}",
            e.ProductCode, e.Version, e.RelationType, e.Operation));
    }
    private void HandleFeatureDetected(object sender, DetectMsiFeatureEventArgs e) {
        Log(string.Format("Feature {0} from Package {1} detected in state {2}",
            e.FeatureId, e.PackageId, e.State));
    }
    private void HandlePackageDetected(object sender, DetectPackageCompleteEventArgs e) {
        Log(string.Format("Package {0} Detected in State {1}",
            e.PackageId, e.State));
    }
    private void HandleDetectComplete(object sender, DetectCompleteEventArgs e)
    { /* release the main thread to continue with work */ }
}

升级时的输出：

请注意，该软件包和两个功能都安装在v1.0.0版本，并在Absent状态下检测到。检测到相关程序包，但不包括任何功能详细信息。

检测到1.0.0.0版本的相关升级捆绑包｛5ef0a3c-4b0d-4fd9-875f-05117c07f373），它是一个主要升级检测到包NetFx4OWeb处于存在状态检测到1.0.0.0版本的相关程序包｛540AE32D-75C0-4BF3-A72D-ADBE97FSFF3E｝（SetupProject1.msi），该程序包是MajorUpgrade在状态Absent中检测到程序包SetupProject.msi中的功能Feature_one功能Feature_Two from Package SetupProjection.msi detected in state Absent在"不存在"状态下检测到程序包SetupProject1.msi

private void DetectRelatedMsiPackageHandler(object sender, DetectRelatedMsiPackageEventArgs e)
{
    var existingPackageProductCode = e.ProductCode;
    var actionToBeAppliedToExistingPackage = e.Operation;
    var existingPackageId = e.PackageId;
    var existingPackageVersion = e.Version;
    Log(string.Format("Detected existing related package {0} (product: {1}) at version {2}, which will be {3}",
                      existingPackageId, existingPackageProductCode, existingPackageVersion,
                      actionToBeAppliedToExistingPackage));
    if (actionToBeAppliedToExistingPackage == RelatedOperation.MajorUpgrade)
    {
        //requires reference to WiX Toolset'SDK'Microsoft.Deployment.WindowsInstaller.dll
        var installedPackage = new Microsoft.Deployment.WindowsInstaller.ProductInstallation(existingPackageProductCode);
        if (!installedPackage.IsInstalled) {
            Log(string.Format("Migrating Package {0}, which is not installed, so marking it and it's features as Absent", existingPackageId));
            //TODO: add logic to store state so that during Plan phase can set package with package with product code = existingPackageProductCode to PackageState.Absent
        } else {
            Log(string.Format("Migrating features for MajorUpgrade of Package {0}", existingPackageId));
            foreach (var currentInstallFeature in installedPackage.Features) {                        
                if (currentInstallFeature.State == InstallState.Local) {
                    Log(string.Format("Migrating feature {1} of Package {0} - marking as Present", existingPackageId, currentInstallFeature.FeatureName));
                    //TODO: add logic to store state so that during Plan phase can set package and feature states based on this info
                } else {
                    Log(string.Format("Migrating feature {1} of Package {0} - marking as Absent", existingPackageId, currentInstallFeature.FeatureName));
                    //TODO: add logic to store state so that during Plan phase can set package and feature states based on this info
                }
            }
        }
    }
}