CODEWITHSUNDEEP
elixirphoenix-framework
Ilya
Ilya

Reputation: 1150

Elixir/Phoenix scan directory for directories

I'm trying to scan a given directory and need to receive only directories back. This way returns all files and folders in a given dir:

dir = "/Users/user/releases/"
folders = 
    File.ls(dir)
    |> elem(1)

Is it possible to filter folders to keep only directories, and no individual files? Thanks!

Upvotes: 2

Views: 1564

Answers (1)

Dogbert
Dogbert

Reputation: 222050

You can filter the list of files/directories using File.dir?/1 to get only directories back. Since File.ls!/1 returns just the file name, and not the full path, you'll also need to join dir with the file name before passing it to File.dir?/1:

iex(1)> dir = "."
"."
iex(2)> File.ls!(dir) |> Enum.filter(&File.dir?(Path.join(dir, &1)))
["config", "lib", "test"]
iex(3)> dir = "test"
"test"
iex(4)> File.ls!(dir) |> Enum.filter(&File.dir?(Path.join(dir, &1)))
["foo"]

Upvotes: 6

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