public static async Task <bool> RestoreMissingPackages(NuGetPackageManager nuGetPackageManager,
IEnumerable <PackageReference> packageReferences,
INuGetProjectContext nuGetProjectContext,
CancellationToken token,
EventHandler <PackageRestoredEventArgs> packageRestoredEvent = null,
IEnumerable <SourceRepository> sourceRepositories = null)
{
if (nuGetPackageManager == null)
{
throw new ArgumentNullException("nuGetPackageManager");
}
if (packageReferences == null)
{
throw new ArgumentNullException("packageReferences");
}
if (nuGetProjectContext == null)
{
throw new ArgumentNullException("nuGetProjectContext");
}
if (!packageReferences.Any())
{
return(false);
}
var hashSetOfMissingPackageReferences = new HashSet <PackageReference>(packageReferences, new PackageReferenceComparer());
// Before starting to restore package, set the nuGetProjectContext such that satellite files are not copied yet
// Satellite files will be copied as a post operation. This helps restore packages in parallel
// and not have to determine if the package is a satellite package beforehand
if (nuGetProjectContext.PackageExtractionContext == null)
{
nuGetProjectContext.PackageExtractionContext = new PackageExtractionContext();
}
nuGetProjectContext.PackageExtractionContext.CopySatelliteFiles = false;
token.ThrowIfCancellationRequested();
// TODO: Update this to use the locked version
bool[] results = await Task.WhenAll(hashSetOfMissingPackageReferences.Select(uniqueMissingPackage =>
RestorePackageAsync(nuGetPackageManager, uniqueMissingPackage.PackageIdentity, nuGetProjectContext,
packageRestoredEvent, sourceRepositories, token)));
token.ThrowIfCancellationRequested();
bool[] satelliteFileResults = await Task.WhenAll(hashSetOfMissingPackageReferences.Select(uniqueMissingPackage =>
nuGetPackageManager.CopySatelliteFilesAsync(uniqueMissingPackage.PackageIdentity, nuGetProjectContext, token)));
return(results.Any() || satelliteFileResults.Any());
}