private static FrameworkName[] SupportedFrameworks(PackageArchiveReaderWithRef packageReader)
{
var netstandardFrameworks = new HashSet <FrameworkName>(EqualityComparerBuilder.For <FrameworkName>().EquateBy(x => x.FullName, StringComparer.InvariantCultureIgnoreCase));
foreach (var target in packageReader.GetSupportedFrameworksWithRef()
.Select(x => new FrameworkName(x.DotNetFrameworkName))
.Where(x => x.IsNetStandard()))
{
netstandardFrameworks.Add(target);
}
var supportedFrameworks = netstandardFrameworks.OrderBy(x => x.Version).ToArray();
return(supportedFrameworks);
}
private static IEnumerable <PackageDocument> GenerateDocuments(IndexPackageRequest request, TextWriter log)
{
var namespaces = new HashSet <string>();
var types = new HashSet <string>();
var nuget = PackageRepositoryFactory.Default.CreateRepository("https://packages.nuget.org/api/v2");
var packageDownloadPolicy = Policy.HandleResult((IPackage)null).WaitAndRetry(10, _ => TimeSpan.FromMinutes(1));
var package = packageDownloadPolicy.Execute(() => nuget.FindPackage(request.PackageId, SemanticVersion.Parse(request.PackageVersion), true, false));
if (package == null)
{
log.WriteLine("Package download failed for " + request);
throw new InvalidOperationException("Package download failed for " + request);
}
var packageStream = package.GetStream();
var packageReader = new PackageArchiveReaderWithRef(packageStream, leaveStreamOpen: true);
foreach (var framework in SupportedFrameworks(packageReader))
{
var netstandardVersion = framework.Version.Major * 256 + framework.Version.Minor;
var current = new PackageDocument
{
Id = AzureSearchUtilities.EncodeDocumentKey(request.PackageId + "$" + (request.PackageVersion.Contains('-') ? 1 : 0) + "$" + netstandardVersion.ToString("X4")),
PackageId = request.PackageId,
PackageVersion = request.PackageVersion,
Prerelease = request.PackageVersion.Contains('-'),
Published = package.Published.Value,
TotalDownloadCount = package.DownloadCount,
NetstandardVersion = netstandardVersion,
};
foreach (var path in packageReader.GetCompatibleAssemblyReferences(framework).Where(x => x.EndsWith(".dll")))
{
var dllStream = new MemoryStream();
packageReader.GetStream(path).CopyTo(dllStream);
dllStream.Position = 0;
var readerParameters = new ReaderParameters
{
AssemblyResolver = new NullAssemblyResolver(log),
};
var assembly = AssemblyDefinition.ReadAssembly(dllStream, readerParameters);
foreach (var type in assembly.Modules.SelectMany(x => x.Types).Where(x => x.IsPublic))
{
if (!namespaces.Contains(type.Namespace))
{
namespaces.Add(type.Namespace);
current.Namespaces.Add(type.Namespace);
}
var name = type.Namespace + "." + type.TypeName();
if (!types.Contains(name))
{
types.Add(name);
current.Types.Add(name);
current.TypesCamelHump.Add(type.TypeName());
}
}
}
yield return(current);
}
}
