protected override IDisposable LinkExternalInput(ITargetBlock <RestoreInfo> targetBlock)
{
// At a high-level, we want to combine all implicitly active configurations (ie the active config of each TFM) restore data
// (via ProjectRestoreUpdate) and combine it into a single IVsProjectRestoreInfo2 instance and publish that. When a change is
// made to a configuration, such as adding a PackageReference, we should react to it and push a new version of our output. If the
// active configuration changes, we should react to it, and publish data from the new set of implicitly active configurations.
var disposables = new DisposableBag();
var packageRestoreConfiguredSource = new UnwrapCollectionChainedProjectValueDataSource <IReadOnlyCollection <ConfiguredProject>, ProjectRestoreUpdate>(
_project.Services,
projects => projects.Select(project => GetProjectRestoreDataSource(project)),
includeSourceVersions: true);
disposables.AddDisposable(packageRestoreConfiguredSource);
IProjectValueDataSource <IConfigurationGroup <ConfiguredProject> > activeConfiguredProjectsSource = _activeConfigurationGroupService.ActiveConfiguredProjectGroupSource;
disposables.AddDisposable(activeConfiguredProjectsSource.SourceBlock.LinkTo(packageRestoreConfiguredSource, DataflowOption.PropagateCompletion));
// Transform all restore data -> combined restore data
DisposableValue <ISourceBlock <RestoreInfo> > mergeBlock = packageRestoreConfiguredSource.SourceBlock
.TransformWithNoDelta(update => update.Derive(MergeRestoreData));
disposables.AddDisposable(mergeBlock);
// Set the link up so that we publish changes to target block
mergeBlock.Value.LinkTo(targetBlock, DataflowOption.PropagateCompletion);
// Join the source blocks, so if they need to switch to UI thread to complete
// and someone is blocked on us on the same thread, the call proceeds
JoinUpstreamDataSources(packageRestoreConfiguredSource, activeConfiguredProjectsSource);
return(disposables);
}
protected override IDisposable LinkExternalInput(ITargetBlock <RestoreInfo> targetBlock)
{
// At a high-level, we want to combine all implicitly active configurations (ie the active config of each TFM) restore data
// (via ProjectRestoreUpdate) and combine it into a single IVsProjectRestoreInfo2 instance and publish that. When a change is
// made to a configuration, such as adding a PackageReference, we should react to it and push a new version of our output. If the
// active configuration changes, we should react to it, and publish data from the new set of implicitly active configurations.
var disposables = new DisposableBag();
var restoreConfiguredInputSource = new UnwrapCollectionChainedProjectValueDataSource <IReadOnlyCollection <ConfiguredProject>, PackageRestoreConfiguredInput>(
_project,
projects => projects.Select(project => project.Services.ExportProvider.GetExportedValueOrDefault <IPackageRestoreConfiguredInputDataSource>())
.WhereNotNull() // Filter out those without PackageReference
.Select(DropConfiguredProjectVersions),
includeSourceVersions: true);
disposables.Add(restoreConfiguredInputSource);
IProjectValueDataSource <IConfigurationGroup <ConfiguredProject> > activeConfiguredProjectsSource = _activeConfigurationGroupService.ActiveConfiguredProjectGroupSource;
disposables.Add(activeConfiguredProjectsSource.SourceBlock.LinkTo(restoreConfiguredInputSource, DataflowOption.PropagateCompletion));
// Dataflow from two configurations can depend on a same unconfigured level data source, and processes it at a different speed.
// Introduce a forward-only block to prevent regressions in versions.
var forwardOnlyBlock = ProjectDataSources.CreateDataSourceVersionForwardOnlyFilteringBlock <IReadOnlyCollection <PackageRestoreConfiguredInput> >();
disposables.Add(restoreConfiguredInputSource.SourceBlock.LinkTo(forwardOnlyBlock, DataflowOption.PropagateCompletion));
// Transform all restore data -> combined restore data
DisposableValue <ISourceBlock <RestoreInfo> > mergeBlock = forwardOnlyBlock.TransformWithNoDelta(update => update.Derive(MergeRestoreInputs));
disposables.Add(mergeBlock);
// Set the link up so that we publish changes to target block
mergeBlock.Value.LinkTo(targetBlock, DataflowOption.PropagateCompletion);
// Join the source blocks, so if they need to switch to UI thread to complete
// and someone is blocked on us on the same thread, the call proceeds
JoinUpstreamDataSources(restoreConfiguredInputSource, activeConfiguredProjectsSource);
_packageReferenceTelemetryService.PostPackageRestoreEvent(PackageRestoreOperationNames.PackageRestoreUnconfiguredInputDataSourceLinkedToExternalInput);
return(disposables);
}
protected override IDisposable LinkExternalInput(ITargetBlock <IProjectVersionedValue <UpToDateCheckConfiguredInput> > targetBlock)
{
// Provides the set of implicitly active configured projects
IProjectValueDataSource <IConfigurationGroup <ConfiguredProject> > activeConfiguredProjectsSource = _activeConfigurationGroupService.ActiveConfiguredProjectGroupSource;
// Aggregates implicitly active UpToDateCheckImplicitConfiguredInput inputs from their sources
var restoreConfiguredInputSource = new UnwrapCollectionChainedProjectValueDataSource <IReadOnlyCollection <ConfiguredProject>, UpToDateCheckImplicitConfiguredInput>(
_configuredProject,
projects => projects.Select(project => project.Services.ExportProvider.GetExportedValueOrDefault <IUpToDateCheckImplicitConfiguredInputDataSource>())
.WhereNotNull() // Filter out any configurations which don't have this export
.Select(DropConfiguredProjectVersions),
includeSourceVersions: true);
// Dataflow from two configurations can depend on a same unconfigured level data source, and processes it at a different speed.
// Introduce a forward-only block to prevent regressions in versions.
var forwardOnlyBlock = ProjectDataSources.CreateDataSourceVersionForwardOnlyFilteringBlock <IReadOnlyCollection <UpToDateCheckImplicitConfiguredInput> >();
DisposableValue <ISourceBlock <IProjectVersionedValue <UpToDateCheckConfiguredInput> > >
mergeBlock = forwardOnlyBlock.TransformWithNoDelta(update => update.Derive(MergeInputs));
JoinUpstreamDataSources(restoreConfiguredInputSource, activeConfiguredProjectsSource);
return(new DisposableBag
{
restoreConfiguredInputSource,
activeConfiguredProjectsSource.SourceBlock.LinkTo(restoreConfiguredInputSource, DataflowOption.PropagateCompletion),
restoreConfiguredInputSource.SourceBlock.LinkTo(forwardOnlyBlock, DataflowOption.PropagateCompletion),
mergeBlock,
mergeBlock.Value.LinkTo(targetBlock, DataflowOption.PropagateCompletion)
});
IProjectValueDataSource <UpToDateCheckImplicitConfiguredInput> DropConfiguredProjectVersions(IUpToDateCheckImplicitConfiguredInputDataSource dataSource)
{
// Wrap it in a data source that will drop project version and identity versions so as they will never agree
// on these versions as they are unique to each configuration. They'll be consistent by all other versions.
return(new DropConfiguredProjectVersionDataSource <UpToDateCheckImplicitConfiguredInput>(_configuredProject.UnconfiguredProject, dataSource));
}
