Esempio n. 1
0
 public Task <PackageRestoreResult> RestoreMissingPackagesAsync(
     string solutionDirectory,
     IEnumerable <PackageRestoreData> packages,
     INuGetProjectContext nuGetProjectContext,
     CancellationToken token)
 {
     return(restoreManager.RestoreMissingPackagesAsync(
                solutionDirectory,
                packages,
                nuGetProjectContext,
                token
                ));
 }
        protected async Task CheckMissingPackagesAsync()
        {
            var solutionDirectory = VsSolutionManager.SolutionDirectory;

            var packages = await PackageRestoreManager.GetPackagesInSolutionAsync(solutionDirectory, CancellationToken.None);

            if (packages.Any(p => p.IsMissing))
            {
                var packageRestoreConsent = new VisualStudio.PackageRestoreConsent(ConfigSettings);
                if (packageRestoreConsent.IsGranted)
                {
                    await TaskScheduler.Default;

                    var result = await PackageRestoreManager.RestoreMissingPackagesAsync(solutionDirectory,
                                                                                         packages,
                                                                                         this,
                                                                                         Token);

                    if (result.Restored)
                    {
                        await PackageRestoreManager.RaisePackagesMissingEventForSolutionAsync(solutionDirectory, CancellationToken.None);

                        return;
                    }
                }

                ErrorHandler.HandleException(
                    new InvalidOperationException(Resources.Cmdlet_MissingPackages),
                    terminating: true,
                    errorId: NuGetErrorId.MissingPackages,
                    category: ErrorCategory.InvalidOperation);
            }
        }
Esempio n. 3
0
        private async Task PerformV2Restore(string packagesConfigFilePath, string installPath)
        {
            var sourceRepositoryProvider = GetSourceRepositoryProvider();
            var nuGetPackageManager      = new NuGetPackageManager(sourceRepositoryProvider, Settings, installPath, ExcludeVersion);

            var installedPackageReferences = GetInstalledPackageReferences(
                packagesConfigFilePath,
                allowDuplicatePackageIds: true);

            var packageRestoreData = installedPackageReferences.Select(reference =>
                                                                       new PackageRestoreData(
                                                                           reference,
                                                                           new[] { packagesConfigFilePath },
                                                                           isMissing: true));

            var packageSources = GetPackageSources(Settings);

            Console.PrintPackageSources(packageSources);

            var packageRestoreContext = new PackageRestoreContext(
                nuGetPackageManager,
                packageRestoreData,
                CancellationToken.None,
                packageRestoredEvent: null,
                packageRestoreFailedEvent: null,
                sourceRepositories: packageSources.Select(sourceRepositoryProvider.CreateRepository),
                maxNumberOfParallelTasks: DisableParallelProcessing ? 1 : PackageManagementConstants.DefaultMaxDegreeOfParallelism);

            var missingPackageReferences = installedPackageReferences.Where(reference =>
                                                                            !nuGetPackageManager.PackageExistsInPackagesFolder(reference.PackageIdentity)).Any();

            if (!missingPackageReferences)
            {
                var message = string.Format(
                    CultureInfo.CurrentCulture,
                    LocalizedResourceManager.GetString("InstallCommandNothingToInstall"),
                    packagesConfigFilePath);

                Console.LogMinimal(message);
            }
            using (var cacheContext = new SourceCacheContext())
            {
                cacheContext.NoCache        = NoCache;
                cacheContext.DirectDownload = DirectDownload;

                var downloadContext = new PackageDownloadContext(cacheContext, installPath, DirectDownload);

                await PackageRestoreManager.RestoreMissingPackagesAsync(
                    packageRestoreContext,
                    new ConsoleProjectContext(Console),
                    downloadContext);

                if (downloadContext.DirectDownload)
                {
                    GetDownloadResultUtility.CleanUpDirectDownloads(downloadContext);
                }
            }
        }
        private async Task RestoreMissingPackagesInSolutionAsync(string solutionDirectory,
                                                                 IEnumerable <PackageRestoreData> packages,
                                                                 CancellationToken token)
        {
            await TaskScheduler.Default;

            await PackageRestoreManager.RestoreMissingPackagesAsync(solutionDirectory,
                                                                    packages,
                                                                    NuGetProjectContext,
                                                                    token);
        }
        protected async Task CheckMissingPackagesAsync()
        {
            var solutionDirectory = VsSolutionManager.SolutionDirectory;

            var packages = await PackageRestoreManager.GetPackagesInSolutionAsync(solutionDirectory, CancellationToken.None);

            if (packages.Any(p => p.IsMissing))
            {
                var packageRestoreConsent = new PackageRestoreConsent(ConfigSettings);
                if (packageRestoreConsent.IsGranted)
                {
                    await TaskScheduler.Default;

                    using (var cacheContext = new SourceCacheContext())
                    {
                        var logger = new LoggerAdapter(this);

                        var signedPackageVerifier = new PackageSignatureVerifier(SignatureVerificationProviderFactory.GetSignatureVerificationProviders());

                        var downloadContext = new PackageDownloadContext(cacheContext)
                        {
                            ParentId          = OperationId,
                            ExtractionContext = new PackageExtractionContext(
                                PackageSaveMode.Defaultv3,
                                PackageExtractionBehavior.XmlDocFileSaveMode,
                                logger,
                                signedPackageVerifier,
                                SignedPackageVerifierSettings.GetClientPolicy(ConfigSettings, logger))
                        };

                        var result = await PackageRestoreManager.RestoreMissingPackagesAsync(
                            solutionDirectory,
                            packages,
                            this,
                            downloadContext,
                            logger,
                            Token);

                        if (result.Restored)
                        {
                            await PackageRestoreManager.RaisePackagesMissingEventForSolutionAsync(solutionDirectory, CancellationToken.None);

                            return;
                        }
                    }
                }

                ErrorHandler.HandleException(
                    new InvalidOperationException(Resources.Cmdlet_MissingPackages),
                    terminating: true,
                    errorId: NuGetErrorId.MissingPackages,
                    category: ErrorCategory.InvalidOperation);
            }
        }
        async Task ExecuteAsync(CancellationToken cancellationToken)
        {
            using (var monitor = new PackageRestoreMonitor(restoreManager)) {
                await restoreManager.RestoreMissingPackagesAsync(
                    solutionManager.SolutionDirectory,
                    nugetProject,
                    new NuGetProjectContext(),
                    cancellationToken);
            }

            await Runtime.RunInMainThread(() => RefreshProjectReferences());

            packageManagementEvents.OnPackagesRestored();
        }
        protected async Task CheckMissingPackagesAsync()
        {
            var solutionDirectory = await VsSolutionManager.GetSolutionDirectoryAsync();

            var packages = await PackageRestoreManager.GetPackagesInSolutionAsync(solutionDirectory, CancellationToken.None);

            if (packages.Any(p => p.IsMissing))
            {
                var packageRestoreConsent = new PackageRestoreConsent(ConfigSettings);
                if (packageRestoreConsent.IsGranted)
                {
                    await TaskScheduler.Default;

                    using (var cacheContext = new SourceCacheContext())
                    {
                        var logger = new LoggerAdapter(this);

                        var downloadContext = new PackageDownloadContext(cacheContext)
                        {
                            ParentId            = OperationId,
                            ClientPolicyContext = ClientPolicyContext.GetClientPolicy(ConfigSettings, logger)
                        };

                        var result = await PackageRestoreManager.RestoreMissingPackagesAsync(
                            solutionDirectory,
                            packages,
                            this,
                            downloadContext,
                            logger,
                            Token);

                        if (result.Restored)
                        {
                            await PackageRestoreManager.RaisePackagesMissingEventForSolutionAsync(solutionDirectory, CancellationToken.None);

                            return;
                        }
                    }
                }

                ErrorHandler.HandleException(
                    new InvalidOperationException(Resources.Cmdlet_MissingPackages),
                    terminating: true,
                    errorId: NuGetErrorId.MissingPackages,
                    category: ErrorCategory.InvalidOperation);
            }
        }
        async Task ExecuteAsync(CancellationToken cancellationToken)
        {
            using (var monitor = new PackageRestoreMonitor(restoreManager)) {
                using (var cacheContext = new SourceCacheContext()) {
                    var downloadContext = new PackageDownloadContext(cacheContext);
                    await restoreManager.RestoreMissingPackagesAsync(
                        solutionManager.SolutionDirectory,
                        nugetProject,
                        new NuGetProjectContext (solutionManager.Settings),
                        downloadContext,
                        cancellationToken);
                }
            }

            await Runtime.RunInMainThread(() => RefreshProjectReferences());

            packageManagementEvents.OnPackagesRestored();
        }
Esempio n. 9
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        private async System.Threading.Tasks.Task RestorePackagesInProject(NuGetProject nuGetProject, CancellationToken token)
        {
            if (token.IsCancellationRequested)
            {
                return;
            }

            var  projectName        = nuGetProject.GetMetadata <string>(NuGetProjectMetadataKeys.Name);
            bool hasMissingPackages = false;

            try
            {
                hasMissingPackages = await PackageRestoreManager.RestoreMissingPackagesAsync(nuGetProject, token);

                WriteLine(hasMissingPackages, error: false);
            }
            catch (Exception ex)
            {
                var exceptionMessage = _msBuildOutputVerbosity >= (int)VerbosityLevel.Detailed ?
                                       ex.ToString() :
                                       ex.Message;
                var message = String.Format(
                    CultureInfo.CurrentCulture,
                    Resources.PackageRestoreFailedForProject, projectName,
                    exceptionMessage);
                WriteLine(VerbosityLevel.Quiet, message);
                ActivityLog.LogError(LogEntrySource, message);
                ShowError(_errorListProvider, TaskErrorCategory.Error,
                          TaskPriority.High, message, hierarchyItem: null);
                WriteLine(hasMissingPackages, error: true);
            }
            finally
            {
                WriteLine(VerbosityLevel.Normal, Resources.PackageRestoreFinishedForProject, projectName);
            }
        }
Esempio n. 10
0
        private async Task PerformV2RestoreAsync(string packagesConfigFilePath, string installPath)
        {
            var sourceRepositoryProvider = GetSourceRepositoryProvider();
            var nuGetPackageManager      = new NuGetPackageManager(sourceRepositoryProvider, Settings, installPath, ExcludeVersion);

            var installedPackageReferences = GetInstalledPackageReferences(
                packagesConfigFilePath,
                allowDuplicatePackageIds: true);

            var packageRestoreData = installedPackageReferences.Select(reference =>
                                                                       new PackageRestoreData(
                                                                           reference,
                                                                           new[] { packagesConfigFilePath },
                                                                           isMissing: true));

            var packageSources = GetPackageSources(Settings);

            Console.PrintPackageSources(packageSources);

            var failedEvents = new ConcurrentQueue <PackageRestoreFailedEventArgs>();

            var packageRestoreContext = new PackageRestoreContext(
                nuGetPackageManager,
                packageRestoreData,
                CancellationToken.None,
                packageRestoredEvent: null,
                packageRestoreFailedEvent: (sender, args) => { failedEvents.Enqueue(args); },
                sourceRepositories: packageSources.Select(sourceRepositoryProvider.CreateRepository),
                maxNumberOfParallelTasks: DisableParallelProcessing ? 1 : PackageManagementConstants.DefaultMaxDegreeOfParallelism,
                logger: Console);

            var missingPackageReferences = installedPackageReferences.Where(reference =>
                                                                            !nuGetPackageManager.PackageExistsInPackagesFolder(reference.PackageIdentity)).Any();

            if (!missingPackageReferences)
            {
                var message = string.Format(
                    CultureInfo.CurrentCulture,
                    LocalizedResourceManager.GetString("InstallCommandNothingToInstall"),
                    packagesConfigFilePath);

                Console.LogMinimal(message);
            }
            using (var cacheContext = new SourceCacheContext())
            {
                cacheContext.NoCache        = NoCache;
                cacheContext.DirectDownload = DirectDownload;

                var clientPolicyContext = ClientPolicyContext.GetClientPolicy(Settings, Console);

                var projectContext = new ConsoleProjectContext(Console)
                {
                    PackageExtractionContext = new PackageExtractionContext(
                        Packaging.PackageSaveMode.Defaultv2,
                        PackageExtractionBehavior.XmlDocFileSaveMode,
                        clientPolicyContext,
                        Console)
                };

                var downloadContext = new PackageDownloadContext(cacheContext, installPath, DirectDownload)
                {
                    ClientPolicyContext = clientPolicyContext
                };

                var result = await PackageRestoreManager.RestoreMissingPackagesAsync(
                    packageRestoreContext,
                    projectContext,
                    downloadContext);

                if (downloadContext.DirectDownload)
                {
                    GetDownloadResultUtility.CleanUpDirectDownloads(downloadContext);
                }

                // Use failure count to determine errors. result.Restored will be false for noop restores.
                if (failedEvents.Count > 0)
                {
                    // Log errors if they exist
                    foreach (var message in failedEvents.Select(e => new RestoreLogMessage(LogLevel.Error, NuGetLogCode.Undefined, e.Exception.Message)))
                    {
                        await Console.LogAsync(message);
                    }

                    throw new ExitCodeException(1);
                }
            }
        }
Esempio n. 11
0
        private async Task <IReadOnlyList <RestoreSummary> > PerformNuGetV2RestoreAsync(PackageRestoreInputs packageRestoreInputs)
        {
            ReadSettings(packageRestoreInputs);
            var packagesFolderPath = Path.GetFullPath(GetPackagesFolder(packageRestoreInputs));

            var sourceRepositoryProvider = new CommandLineSourceRepositoryProvider(SourceProvider);
            var nuGetPackageManager      = new NuGetPackageManager(sourceRepositoryProvider, Settings, packagesFolderPath);

            var installedPackageReferences = new HashSet <Packaging.PackageReference>(new PackageReferenceComparer());

            if (packageRestoreInputs.RestoringWithSolutionFile)
            {
                installedPackageReferences.AddRange(packageRestoreInputs
                                                    .PackagesConfigFiles
                                                    .SelectMany(file => GetInstalledPackageReferences(file, allowDuplicatePackageIds: true)));
            }
            else if (packageRestoreInputs.PackagesConfigFiles.Count > 0)
            {
                // By default the PackageReferenceFile does not throw
                // if the file does not exist at the specified path.
                // So we'll need to verify that the file exists.
                Debug.Assert(packageRestoreInputs.PackagesConfigFiles.Count == 1,
                             "Only one packages.config file is allowed to be specified " +
                             "at a time when not performing solution restore.");

                var packageReferenceFile = packageRestoreInputs.PackagesConfigFiles[0];
                if (!File.Exists(packageReferenceFile))
                {
                    var message = string.Format(
                        CultureInfo.CurrentCulture,
                        LocalizedResourceManager.GetString("RestoreCommandFileNotFound"),
                        packageReferenceFile);

                    throw new InvalidOperationException(message);
                }

                installedPackageReferences.AddRange(
                    GetInstalledPackageReferences(packageReferenceFile, allowDuplicatePackageIds: true));
            }

            // EffectivePackageSaveMode is None when -PackageSaveMode is not provided by the user. None is treated as
            // Defaultv3 for V3 restore and should be treated as Defaultv2 for V2 restore. This is the case in the
            // actual V2 restore flow and should match in this preliminary missing packages check.
            var packageSaveMode = EffectivePackageSaveMode == Packaging.PackageSaveMode.None ?
                                  Packaging.PackageSaveMode.Defaultv2 :
                                  EffectivePackageSaveMode;

            var missingPackageReferences = installedPackageReferences.Where(reference =>
                                                                            !nuGetPackageManager.PackageExistsInPackagesFolder(reference.PackageIdentity, packageSaveMode)).ToArray();

            if (missingPackageReferences.Length == 0)
            {
                var message = string.Format(
                    CultureInfo.CurrentCulture,
                    LocalizedResourceManager.GetString("InstallCommandNothingToInstall"),
                    "packages.config");

                Console.LogMinimal(message);

                var restoreSummaries = new List <RestoreSummary>();

                ValidatePackagesConfigLockFiles(
                    packageRestoreInputs.PackagesConfigFiles,
                    packageRestoreInputs.ProjectReferenceLookup.Projects,
                    packagesFolderPath,
                    restoreSummaries);

                if (restoreSummaries.Count == 0)
                {
                    restoreSummaries.Add(new RestoreSummary(success: true));
                }

                return(restoreSummaries);
            }

            var packageRestoreData = missingPackageReferences.Select(reference =>
                                                                     new PackageRestoreData(
                                                                         reference,
                                                                         new[] { packageRestoreInputs.RestoringWithSolutionFile
                                ? packageRestoreInputs.DirectoryOfSolutionFile
                                : packageRestoreInputs.PackagesConfigFiles[0] },
                                                                         isMissing: true));

            var packageSources = GetPackageSources(Settings);

            var repositories = packageSources
                               .Select(sourceRepositoryProvider.CreateRepository)
                               .ToArray();

            var installCount    = 0;
            var failedEvents    = new ConcurrentQueue <PackageRestoreFailedEventArgs>();
            var collectorLogger = new RestoreCollectorLogger(Console);

            var packageRestoreContext = new PackageRestoreContext(
                nuGetPackageManager,
                packageRestoreData,
                CancellationToken.None,
                packageRestoredEvent: (sender, args) => { Interlocked.Add(ref installCount, args.Restored ? 1 : 0); },
                packageRestoreFailedEvent: (sender, args) => { failedEvents.Enqueue(args); },
                sourceRepositories: repositories,
                maxNumberOfParallelTasks: DisableParallelProcessing
                        ? 1
                        : PackageManagementConstants.DefaultMaxDegreeOfParallelism,
                logger: collectorLogger);

            CheckRequireConsent();

            var clientPolicyContext = ClientPolicyContext.GetClientPolicy(Settings, collectorLogger);
            var projectContext      = new ConsoleProjectContext(collectorLogger)
            {
                PackageExtractionContext = new PackageExtractionContext(
                    Packaging.PackageSaveMode.Defaultv2,
                    PackageExtractionBehavior.XmlDocFileSaveMode,
                    clientPolicyContext,
                    collectorLogger)
            };

            if (EffectivePackageSaveMode != Packaging.PackageSaveMode.None)
            {
                projectContext.PackageExtractionContext.PackageSaveMode = EffectivePackageSaveMode;
            }

            using (var cacheContext = new SourceCacheContext())
            {
                cacheContext.NoCache        = NoCache;
                cacheContext.DirectDownload = DirectDownload;

                var packageSourceMapping = PackageSourceMapping.GetPackageSourceMapping(Settings);

                var downloadContext = new PackageDownloadContext(cacheContext, packagesFolderPath, DirectDownload, packageSourceMapping)
                {
                    ClientPolicyContext = clientPolicyContext
                };

                var result = await PackageRestoreManager.RestoreMissingPackagesAsync(
                    packageRestoreContext,
                    projectContext,
                    downloadContext);

                if (downloadContext.DirectDownload)
                {
                    GetDownloadResultUtility.CleanUpDirectDownloads(downloadContext);
                }

                IReadOnlyList <IRestoreLogMessage> errors = collectorLogger.Errors.Concat(ProcessFailedEventsIntoRestoreLogs(failedEvents)).ToList();
                var restoreSummaries = new List <RestoreSummary>()
                {
                    new RestoreSummary(
                        result.Restored,
                        "packages.config projects",
                        Settings.GetConfigFilePaths().ToList().AsReadOnly(),
                        packageSources.Select(x => x.Source).ToList().AsReadOnly(),
                        installCount,
                        errors)
                };

                if (result.Restored)
                {
                    ValidatePackagesConfigLockFiles(
                        packageRestoreInputs.PackagesConfigFiles,
                        packageRestoreInputs.ProjectReferenceLookup.Projects,
                        packagesFolderPath,
                        restoreSummaries);
                }

                return(restoreSummaries);
            }
        }
Esempio n. 12
0
        private static async Task <RestoreSummary> PerformNuGetV2RestoreAsync(Common.ILogger log, DependencyGraphSpec dgFile, bool noCache, bool disableParallel, bool interactive)
        {
            string globalPackageFolder           = null;
            string repositoryPath                = null;
            string firstPackagesConfigPath       = null;
            IList <PackageSource> packageSources = null;

            var installedPackageReferences = new HashSet <Packaging.PackageReference>(new PackageReferenceComparer());

            ISettings settings = null;

            foreach (PackageSpec packageSpec in dgFile.Projects.Where(i => i.RestoreMetadata.ProjectStyle == ProjectStyle.PackagesConfig))
            {
                var pcRestoreMetadata = (PackagesConfigProjectRestoreMetadata)packageSpec.RestoreMetadata;
                globalPackageFolder = globalPackageFolder ?? pcRestoreMetadata.PackagesPath;
                repositoryPath      = repositoryPath ?? pcRestoreMetadata.RepositoryPath;

                if (packageSources == null)
                {
                    packageSources = new List <PackageSource>();
                    if (!noCache)
                    {
                        if (!string.IsNullOrEmpty(globalPackageFolder) && Directory.Exists(globalPackageFolder))
                        {
                            packageSources.Add(new FeedTypePackageSource(globalPackageFolder, FeedType.FileSystemV3));
                        }
                    }

                    packageSources.AddRange(pcRestoreMetadata.Sources);
                }

                settings = settings ?? Settings.LoadSettingsGivenConfigPaths(pcRestoreMetadata.ConfigFilePaths);

                var packagesConfigPath = Path.Combine(Path.GetDirectoryName(pcRestoreMetadata.ProjectPath), NuGetConstants.PackageReferenceFile);

                firstPackagesConfigPath = firstPackagesConfigPath ?? packagesConfigPath;

                installedPackageReferences.AddRange(GetInstalledPackageReferences(packagesConfigPath, allowDuplicatePackageIds: true, log));
            }

            if (string.IsNullOrEmpty(repositoryPath))
            {
                throw new InvalidOperationException(Strings.RestoreNoSolutionFound);
            }

            PackageSourceProvider packageSourceProvider = new PackageSourceProvider(settings);
            var sourceRepositoryProvider = new CachingSourceProvider(packageSourceProvider);
            var nuGetPackageManager      = new NuGetPackageManager(sourceRepositoryProvider, settings, repositoryPath);

            var effectivePackageSaveMode = CalculateEffectivePackageSaveMode(settings);

            var packageSaveMode = effectivePackageSaveMode == Packaging.PackageSaveMode.None ?
                                  Packaging.PackageSaveMode.Defaultv2 :
                                  effectivePackageSaveMode;

            var missingPackageReferences = installedPackageReferences.Where(reference =>
                                                                            !nuGetPackageManager.PackageExistsInPackagesFolder(reference.PackageIdentity, packageSaveMode)).ToArray();

            if (missingPackageReferences.Length == 0)
            {
                return(new RestoreSummary(true));
            }
            var packageRestoreData = missingPackageReferences.Select(reference =>
                                                                     new PackageRestoreData(
                                                                         reference,
                                                                         new[] { firstPackagesConfigPath },
                                                                         isMissing: true));

            var repositories = sourceRepositoryProvider.GetRepositories().ToArray();

            var installCount    = 0;
            var failedEvents    = new ConcurrentQueue <PackageRestoreFailedEventArgs>();
            var collectorLogger = new RestoreCollectorLogger(log);

            var packageRestoreContext = new PackageRestoreContext(
                nuGetPackageManager,
                packageRestoreData,
                CancellationToken.None,
                packageRestoredEvent: (sender, args) => { Interlocked.Add(ref installCount, args.Restored ? 1 : 0); },
                packageRestoreFailedEvent: (sender, args) => { failedEvents.Enqueue(args); },
                sourceRepositories: repositories,
                maxNumberOfParallelTasks: disableParallel
                    ? 1
                    : PackageManagementConstants.DefaultMaxDegreeOfParallelism,
                logger: collectorLogger);

            // TODO: Check require consent?
            // NOTE: This feature is currently not working at all. See https://github.com/NuGet/Home/issues/4327
            // CheckRequireConsent();

            var clientPolicyContext = ClientPolicyContext.GetClientPolicy(settings, collectorLogger);
            var projectContext      = new ConsoleProjectContext(collectorLogger)
            {
                PackageExtractionContext = new PackageExtractionContext(
                    packageSaveMode,
                    PackageExtractionBehavior.XmlDocFileSaveMode,
                    clientPolicyContext,
                    collectorLogger)
            };

            if (effectivePackageSaveMode != Packaging.PackageSaveMode.None)
            {
                projectContext.PackageExtractionContext.PackageSaveMode = packageSaveMode;
            }

            using (var cacheContext = new SourceCacheContext())
            {
                cacheContext.NoCache = noCache;

                var downloadContext = new PackageDownloadContext(cacheContext, repositoryPath, directDownload: false)
                {
                    ClientPolicyContext = clientPolicyContext
                };

                DefaultCredentialServiceUtility.SetupDefaultCredentialService(log, !interactive);

                var result = await PackageRestoreManager.RestoreMissingPackagesAsync(
                    packageRestoreContext,
                    projectContext,
                    downloadContext);

                return(new RestoreSummary(
                           result.Restored,
                           "packages.config projects",
                           settings.GetConfigFilePaths().ToArray(),
                           packageSources.Select(x => x.Source).ToArray(),
                           installCount,
                           collectorLogger.Errors.Concat(ProcessFailedEventsIntoRestoreLogs(failedEvents)).ToArray()
                           ));
            }
        }
        private async Task <RestoreSummary> PerformNuGetV2RestoreAsync(PackageRestoreInputs packageRestoreInputs)
        {
            ReadSettings(packageRestoreInputs);
            var packagesFolderPath = GetPackagesFolder(packageRestoreInputs);

            var sourceRepositoryProvider = new CommandLineSourceRepositoryProvider(SourceProvider);
            var nuGetPackageManager      = new NuGetPackageManager(sourceRepositoryProvider, Settings, packagesFolderPath);

            var installedPackageReferences = new HashSet <Packaging.PackageReference>(new PackageReferenceComparer());

            if (packageRestoreInputs.RestoringWithSolutionFile)
            {
                installedPackageReferences.AddRange(packageRestoreInputs
                                                    .PackagesConfigFiles
                                                    .SelectMany(file => GetInstalledPackageReferences(file, allowDuplicatePackageIds: true)));
            }
            else if (packageRestoreInputs.PackagesConfigFiles.Count > 0)
            {
                // By default the PackageReferenceFile does not throw
                // if the file does not exist at the specified path.
                // So we'll need to verify that the file exists.
                Debug.Assert(packageRestoreInputs.PackagesConfigFiles.Count == 1,
                             "Only one packages.config file is allowed to be specified " +
                             "at a time when not performing solution restore.");

                var packageReferenceFile = packageRestoreInputs.PackagesConfigFiles[0];
                if (!File.Exists(packageReferenceFile))
                {
                    var message = string.Format(
                        CultureInfo.CurrentCulture,
                        LocalizedResourceManager.GetString("RestoreCommandFileNotFound"),
                        packageReferenceFile);

                    throw new InvalidOperationException(message);
                }

                installedPackageReferences.AddRange(
                    GetInstalledPackageReferences(packageReferenceFile, allowDuplicatePackageIds: true));
            }

            var missingPackageReferences = installedPackageReferences.Where(reference =>
                                                                            !nuGetPackageManager.PackageExistsInPackagesFolder(reference.PackageIdentity)).ToArray();

            if (missingPackageReferences.Length == 0)
            {
                var message = string.Format(
                    CultureInfo.CurrentCulture,
                    LocalizedResourceManager.GetString("InstallCommandNothingToInstall"),
                    "packages.config");

                Console.LogMinimal(message);
                return(new RestoreSummary(true));
            }

            var packageRestoreData = missingPackageReferences.Select(reference =>
                                                                     new PackageRestoreData(
                                                                         reference,
                                                                         new[] { packageRestoreInputs.RestoringWithSolutionFile
                                ? packageRestoreInputs.DirectoryOfSolutionFile
                                : packageRestoreInputs.PackagesConfigFiles[0] },
                                                                         isMissing: true));

            var packageSources = GetPackageSources(Settings);

            var repositories = packageSources
                               .Select(sourceRepositoryProvider.CreateRepository)
                               .ToArray();

            var installCount = 0;
            var failedEvents = new ConcurrentQueue <PackageRestoreFailedEventArgs>();

            var packageRestoreContext = new PackageRestoreContext(
                nuGetPackageManager,
                packageRestoreData,
                CancellationToken.None,
                packageRestoredEvent: (sender, args) => { Interlocked.Add(ref installCount, args.Restored ? 1 : 0); },
                packageRestoreFailedEvent: (sender, args) => { failedEvents.Enqueue(args); },
                sourceRepositories: repositories,
                maxNumberOfParallelTasks: DisableParallelProcessing
                        ? 1
                        : PackageManagementConstants.DefaultMaxDegreeOfParallelism);

            CheckRequireConsent();

            var collectorLogger = new CollectorLogger(Console);
            var projectContext  = new ConsoleProjectContext(collectorLogger)
            {
                PackageExtractionContext = new PackageExtractionContext(collectorLogger)
            };

            if (EffectivePackageSaveMode != Packaging.PackageSaveMode.None)
            {
                projectContext.PackageExtractionContext.PackageSaveMode = EffectivePackageSaveMode;
            }

            var result = await PackageRestoreManager.RestoreMissingPackagesAsync(
                packageRestoreContext,
                projectContext);

            return(new RestoreSummary(
                       result.Restored,
                       "packages.config projects",
                       Settings.Priority.Select(x => Path.Combine(x.Root, x.FileName)),
                       packageSources.Select(x => x.Source),
                       installCount,
                       collectorLogger.Errors.Concat(failedEvents.Select(e => e.Exception.Message))));
        }