I find myself writing file and directory utility functions all the time, and I was wondering if there is good file and directory library that already implements a more extensive set than available by default in System.IO. The kind of functions I'm looking for is things like:

    public static void GetTemporaryDirectory() 
    { 
       string tempDirectory = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()); 
       Directory.CreateDirectory(tempDirectory); 
       return tempDirectory; 
    }

    public static void CreateEmptyFile(string filename) 
    { 
        File.Create(filename).Dispose(); 
    } 

    public static void CreateEmptyFile(string path, string filename) 
    { 
        File.Create(Path.Combine(path, filename)).Dispose(); 
    } 

    public static void CreateDirectory(string path)
    {
        Directory.CreateDirectory(path);
    }

    public static void CreateDirectory(string path, string childpath)
    {
        Directory.CreateDirectory(Path.Combine(path, childpath));
    }