public static async Task <CrawlerResults> CrawlAsync(NuGetFeed feed, PackageIdentity packageId)
{
var crawler = new AssemblyCrawler();
var reader = await feed.GetPackageAsync(packageId);
foreach (var packagePath in reader.GetFiles())
{
await using var assemblyStream = reader.GetStream(packagePath);
await using var memoryStream = new MemoryStream();
await assemblyStream.CopyToAsync(memoryStream);
memoryStream.Position = 0;
var env = new HostEnvironment();
var assembly = env.LoadAssemblyFrom(packagePath, memoryStream);
if (assembly is null)
{
continue;
}
crawler.Crawl(assembly);
}
return(crawler.GetResults());
}
private static void Check(IAssembly assembly, IReadOnlyDictionary <string, int> expectedResultsText)
{
var expectedResults = expectedResultsText.ToDictionary(kv => new ApiKey(kv.Key), kv => kv.Value);
var crawler = new AssemblyCrawler();
crawler.Crawl(assembly);
var actualResults = crawler.GetResults().Data;
var messageBuilder = new StringBuilder();
foreach (var key in expectedResults.Keys.Where(k => actualResults.ContainsKey(k) && expectedResults[k] != actualResults[k]))
{
if (_autoGeneratedKeys.Contains(key.DocumentationId))
{
continue;
}
messageBuilder.AppendLine($"{key} was expected to have a value {expectedResults[key]} but was {actualResults[key]}.");
}
foreach (var key in expectedResults.Keys.Where(k => !actualResults.ContainsKey(k)))
{
if (_autoGeneratedKeys.Contains(key.DocumentationId))
{
continue;
}
messageBuilder.AppendLine($"{key} was expected but is missing.");
}
foreach (var key in actualResults.Keys.Where(k => !expectedResults.ContainsKey(k)))
{
if (_autoGeneratedKeys.Contains(key.DocumentationId))
{
continue;
}
messageBuilder.AppendLine($"{key} was not expected.");
}
if (messageBuilder.Length > 0)
{
throw new Exception(messageBuilder.ToString());
}
}
public static void Run(ApiCatalogModel catalog,
IReadOnlyCollection <string> filePaths,
IReadOnlyList <NuGetFramework> frameworks,
bool analyzeObsoletion,
IReadOnlyList <string> platforms,
Action <AssemblyResult> resultReceiver)
{
var apiByGuid = catalog.GetAllApis().ToDictionary(a => a.Guid);
var availabilityContext = ApiAvailabilityContext.Create(catalog);
var platformContexts = frameworks.Select(fx => PlatformAnnotationContext.Create(availabilityContext, fx.GetShortFolderName()))
.ToDictionary(pc => pc.Framework);
foreach (var api in catalog.GetAllApis())
{
var forwardedApi = catalog.GetForwardedApi(api);
if (forwardedApi is not null)
{
apiByGuid[api.Guid] = forwardedApi.Value;
}
}
var apiAvailability = new ConcurrentDictionary <ApiModel, ApiAvailability>();
var resultSink = new BlockingCollection <AssemblyResult>();
var resultSinkTask = Task.Run(() =>
{
foreach (var result in resultSink.GetConsumingEnumerable())
{
resultReceiver(result);
}
});
Parallel.ForEach(filePaths, filePath =>
{
using var env = new HostEnvironment();
var assembly = env.LoadAssemblyFrom(filePath);
var assemblyName = assembly is not null
? assembly.Name.Value
: Path.GetFileName(filePath);
if (assembly is null)
{
var result = new AssemblyResult(assemblyName, "Not a valid .NET assembly", Array.Empty <ApiResult>());
resultSink.Add(result);
}
else
{
var assemblyTfm = assembly.GetTargetFrameworkMoniker();
var assemblyFramework = string.IsNullOrEmpty(assemblyTfm) ? null : NuGetFramework.Parse(assemblyTfm);
var crawler = new AssemblyCrawler();
crawler.Crawl(assembly);
var crawlerResults = crawler.GetResults();
var apiResults = new List <ApiResult>();
var frameworkResultBuilder = new List <FrameworkResult>(frameworks.Count);
var platformResultBuilder = new List <PlatformResult?>(platforms.Count);
foreach (var apiKey in crawlerResults.Data.Keys)
{
if (apiByGuid.TryGetValue(apiKey.Guid, out var api))
{
var availability = apiAvailability.GetOrAdd(api, a => availabilityContext.GetAvailability(a));
frameworkResultBuilder.Clear();
foreach (var framework in frameworks)
{
// Analyze availability
AvailabilityResult availabilityResult;
var infos = availability.Frameworks.Where(fx => fx.Framework == framework).ToArray();
// NOTE: There are APIs that exist in multiple places in-box, e.g. Microsoft.Windows.Themes.ListBoxChrome.
// It doesn't really matter for our purposes. Either way, we'll pick the first one.
var info = infos.FirstOrDefault(i => i.IsInBox) ?? infos.FirstOrDefault(i => !i.IsInBox);
if (info is null)
{
availabilityResult = AvailabilityResult.Unavailable;
}
else if (info.IsInBox)
{
availabilityResult = AvailabilityResult.AvailableInBox;
}
else
{
availabilityResult = AvailabilityResult.AvailableInPackage(info.Package.Value);
}
// Analyze obsoletion
ObsoletionResult?obsoletionResult;
if (!analyzeObsoletion || info?.Declaration.Obsoletion is null)
{
obsoletionResult = null;
}
else
{
var compiledAgainstObsoleteApi = false;
if (assemblyFramework is not null)
{
var compiledAvailability = availabilityContext.GetAvailability(api, assemblyFramework);
if (compiledAvailability?.Declaration.Obsoletion is not null)
{
compiledAgainstObsoleteApi = true;
}
}
if (compiledAgainstObsoleteApi)
{
obsoletionResult = null;
}
else
{
var o = info.Declaration.Obsoletion.Value;
obsoletionResult = new ObsoletionResult(o.Message, o.Url);
}
}
// Analyze platform support
platformResultBuilder.Clear();
if (info is null)
{
for (var i = 0; i < platforms.Count; i++)
{
platformResultBuilder.Add(null);
}
}
else
{
var platformContext = platformContexts[framework];
foreach (var platform in platforms)
{
var annotation = platformContext.GetPlatformAnnotation(api);
var isSupported = annotation.IsSupported(platform);
var platformResult = isSupported ? PlatformResult.Supported : PlatformResult.Unsupported;
platformResultBuilder.Add(platformResult);
}
}
var frameworkResult = new FrameworkResult(availabilityResult, obsoletionResult, platformResultBuilder.ToArray());
frameworkResultBuilder.Add(frameworkResult);
}
var apiResult = new ApiResult(api, frameworkResultBuilder.ToArray());
apiResults.Add(apiResult);
}
}
var results = new AssemblyResult(assemblyName, null, apiResults.ToArray());
resultSink.Add(results);
}
});
resultSink.CompleteAdding();
resultSinkTask.Wait();
}