public LocalDependencies Dependencies(Solution solution)
        {
            var nupkgSet = new FileSet
            {
                DeepSearch = true,
                Include    = "*.nupkg"
            };

            var files = _fileSystem
                        .FindFiles(solution.PackagesDirectory(), nupkgSet)
                        .Select(x => _strategy.FileFor(x)).ToList();

            return(new LocalDependencies(files));
        }