VisitTree

The extension method IFileSystem.VisitTree(string path, int depth) visits a tree structure of a filesystem.

IFileSystem ram = new MemoryFileSystem();
ram.CreateDirectory("/tmp/");
ram.CreateDirectory("/mnt/");
ram.CreateDirectory("/usr/lex/");
ram.CreateDirectory("c:/dir/dir/");
ram.CreateFile("/tmp/helloworld.txt", Encoding.UTF8.GetBytes("Hello World!\r\n"));
ram.CreateDirectory("file://c:/temp");

foreach (TreeVisit.Line line in ram.VisitTree())
{
    Console.WriteLine(line);
}

""
├── ""
│  ├── "mnt"
│  ├── "tmp"
│  │  └── "helloworld.txt"
│  └── "usr"
│     └── "lex"
├── "c:"
│  └── "dir"
│     └── "dir"
└── "file:"
   └── ""
      └── "c:"
         └── "temp"

Parameter depth determines visit depth.

foreach (TreeVisit.Line line in ram.VisitTree(depth: 1))
{
    Console.WriteLine(line);
}

""
├── ""
├── "c:"
└── "file:"

Parameter path determines start location.

foreach (TreeVisit.Line line in ram.VisitTree(path: "/tmp/"))
{
    Console.WriteLine(line);
}

"tmp"
└── "helloworld.txt"