Get relevant assemblies with Nuget.Core

gistfile1.cs

        public IEnumerable<string> GetAssemblyNames(List<string> packageids, string version)
        {
            var packageDir = _fileSystem.CurrentDirectory + @"\" + "packages";

            if (!Directory.Exists(packageDir))
                return Enumerable.Empty<string>();
            
            var items = new List<string>();

            var repository = new LocalPackageRepository(packageDir);
            var pcskg = repository.FindPackages(packageids);

            foreach (var package in pcskg)
            {
                IEnumerable<IPackageFile> packageFiles;
                VersionUtility.TryGetCompatibleItems(VersionUtility.ParseFrameworkFolderName(version), package.GetLibFiles().Where(i => i.Path.Contains(".dll")), out packageFiles);
                if (packageFiles != null)
                {
                    foreach (var packageFile in packageFiles)
                    {
                        var path = packageDir + "\\" + package.Id +"."+package.Version + "\\" + packageFile.Path;
                        Console.WriteLine("Found package reference: " + path);
                        items.Add(path);                        
                    }
                }
            }

            return items;
        }