public IEnumerable <WorkloadId> GetInstalledWorkloads(SdkFeatureBand sdkFeatureBand)
{
SdkFeatureBand featureBand = new SdkFeatureBand(new ReleaseVersion(6, 0, 100));
if (sdkFeatureBand.Equals(featureBand))
{
return(new[] { new WorkloadId("xamarin-android") });
}
throw new Exception($"Should not pass other feature band {sdkFeatureBand}");
}
internal static void GetInstalledWorkloads(IWorkloadResolver workloadResolver, SdkFeatureBand sdkFeatureBand,
InstalledWorkloadsCollection installedWorkloads)
{
IEnumerable <string> visualStudioWorkloadIds = GetAvailableVisualStudioWorkloads(workloadResolver);
HashSet <string> installedWorkloadComponents = new();
// Visual Studio instances contain a large set of packages and we have to perform a linear
// search to determine whether a matching SDK was installed and look for each installable
// workload from the SDK. The search is optimized to only scan each set of packages once.
foreach (ISetupInstance2 instance in GetVisualStudioInstances())
{
ISetupPackageReference[] packages = instance.GetPackages();
bool hasMatchingSdk = false;
installedWorkloadComponents.Clear();
for (int i = 0; i < packages.Length; i++)
{
string packageId = packages[i].GetId();
if (string.IsNullOrWhiteSpace(packageId))
{
// Visual Studio already verifies the setup catalog at build time. If the package ID is empty
// the catalog is likely corrupted.
continue;
}
if (packageId.StartsWith(s_visualStudioSdkPackageIdPrefix))
{
// After trimming the package prefix we should be left with a valid semantic version. If we can't
// parse the version we'll skip this instance.
if (!ReleaseVersion.TryParse(packageId.Substring(s_visualStudioSdkPackageIdPrefix.Length),
out ReleaseVersion visualStudioSdkVersion))
{
break;
}
SdkFeatureBand visualStudioSdkFeatureBand = new SdkFeatureBand(visualStudioSdkVersion);
// The feature band of the SDK in VS must match that of the SDK on which we're running.
if (!visualStudioSdkFeatureBand.Equals(sdkFeatureBand))
{
break;
}
hasMatchingSdk = true;
continue;
}
if (visualStudioWorkloadIds.Contains(packageId, StringComparer.OrdinalIgnoreCase))
{
// Normalize back to an SDK style workload ID.
installedWorkloadComponents.Add(packageId.Replace('.', '-'));
}
}
if (hasMatchingSdk)
{
foreach (string id in installedWorkloadComponents)
{
installedWorkloads.Add(id, $"VS {instance.GetInstallationVersion()}");
}
}
}
}
