Golem.Core.RecipeFileSearch.FindFilesExcludingDuplicates C# (CSharp) Method

        private FileInfo[] FindFilesExcludingDuplicates(string startDir)
        {
            //if a file, then return
            var tmp = new FileInfo(startDir);
            if( tmp.Exists )
            {
                return new[]{tmp};
            }

            var found = new DirectoryInfo(startDir)
                .GetFiles("*.dll", SearchOption.AllDirectories);

            var valid = new List<FileInfo>();

            foreach (var fileInfo in found)
                if (!fileInfo.Directory.FullName.Contains("\\obj\\") && ! FoundAssemblyFiles.Contains(fileInfo))
                    valid.Add(fileInfo);

            return valid.ToArray();
        }