internal static bool IsNuGetAssembly(AssemblyReference assemblyReference)
{
var assemblyName = assemblyReference.GetAssemblyName();
var isNuGetAssembly = assemblyName.Name == null || NuGetAssembly.MatchesName(assemblyName.Name);
// Originally I wanted to also check the strong name token, to reduce the risk that someone compiled their
// code against a custom NuGet assembly with APIs that we don't ship. However, JetBrains compiled their
// products against custom NuGet assemblies with a different public token, so we can't do that check if we
// want to find out which APIs they're using.
return(isNuGetAssembly);
}
private static UsageInformation?GetApisUsedByAssembly(string file)
{
// Skip NuGet's own assemblies
string filename = Path.GetFileNameWithoutExtension(file);
if (NuGetAssembly.MatchesName(filename) ||
filename.Equals("NuGet.Core", StringComparison.OrdinalIgnoreCase))
{
return(null);
}
if (filename.StartsWith("NuGet.", StringComparison.OrdinalIgnoreCase))
{
Console.Error.WriteLine("Suspicious assembly name: " + file);
}
using var fileStream = File.OpenRead(file);
using var peReader = new PEReader(fileStream);
MetadataReader metadata;
try
{
metadata = peReader.GetMetadataReader();
}
catch (InvalidOperationException)
{
// Not a .NET assembly
return(null);
}
if (!AssemblyAnalyser.HasReferenceToNuGetAssembly(metadata))
{
return(null);
}
UsageInformation usedNuGetApis = AssemblyAnalyser.FindUsedNuGetApis(metadata);
return(usedNuGetApis);
}