NuGet.LocalPackageRepository.GetPackageFiles C# (CSharp) Метод

        internal IEnumerable<string> GetPackageFiles(string filter = null)
        {
            filter = filter ?? "*" + Constants.PackageExtension;
            Debug.Assert(filter.EndsWith(Constants.PackageExtension, StringComparison.OrdinalIgnoreCase));

            // Check for package files one level deep. We use this at package install time
            // to determine the set of installed packages. Installed packages are copied to 
            // {id}.{version}\{packagefile}.{extension}.
            foreach (var dir in FileSystem.GetDirectories(String.Empty))
            {
                foreach (var path in FileSystem.GetFiles(dir, filter))
                {
                    yield return path;
                }
            }

            // Check top level directory
            foreach (var path in FileSystem.GetFiles(String.Empty, filter))
            {
                yield return path;
            }
        }