Retrieving a list of folders in a directory

Question

How to get a list of folders that exist in a specific directory with ruby?

Dir.entries() looks close, but I don't know how to limit only folders.

Answer 1

Jordan is close, but Dir.entries does not return the full path that File.directory? expects File.directory? . Try the following:

  Dir.entries('/your_dir').select {|entry| File.directory? File.join('/your_dir',entry) and !(entry =='.' || entry == '..') } 

Answer 2

I found this more useful and easy to use:

 Dir.chdir('/destination_directory') Dir.glob('*').select {|f| File.directory? f} 

it gets all the folders in the current directory except . and ..

To browse folders simply use ** instead of * .

Dir.glob can also be passed to Dir.chdir as a block:

 Dir.chdir('/destination directory') do Dir.glob('*').select { |f| File.directory? f } end 

Answer 3

In my opinion, Pathname much better for file names than simple strings.

 require "pathname" Pathname.new(directory_name).children.select { |c| c.directory? } 

This gives you an array of all the directories in this directory as Pathname objects.

If you want to have lines

 Pathname.new(directory_name).children.select { |c| c.directory? }.collect { |p| p.to_s } 

If directory_name was absolute, these lines are also absolute.

Answer 4

Recursively find all folders in a specific directory:

 Dir.glob 'certain_directory/**/*/' 

Non-recursive version:

 Dir.glob 'certain_directory/*/' 

Note: Dir.[] Works like Dir.glob .

Answer 5

Can you use File.directory? from the FileTest module to find out if the file is a directory. Combining this with Dir.entries makes a nice (ish) -liner:

 directory = 'some_dir' Dir.entries(directory).select { |file| File.directory? File.join(directory, file} 

Edit: Updated by ScottD correction.

Answer 6

 directory = 'Folder' puts Dir.entries(directory).select { |file| File.directory? File.join(directory, file)} 

Answer 7

 Dir.glob('/your_dir').reject {|e| !File.directory?(e)} 

Answer 8

 $dir_target = "/Users/david/Movies/Camtasia 2/AzureMobileServices.cmproj/media" Dir.glob("#{$dir_target}/**/*").each do |f| if File.directory?(f) puts "#{f}\n" end end 

Answer 9

For a general solution, you probably want to use

 Dir.glob(File.expand_path(path)) 

This will work with paths like ~/*/ (all folders in your home directory).

Answer 10

Only folders ("." AND ".." are excluded):

Dir.glob(File.join(path, "*", File::SEPARATOR))

Folders and files:

Dir.glob(File.join(path, "*"))

Answer 11

With this, you can recursively get an array of the full path to your directories, subdirectories, subdirectories. I used this code to load these files into the config/application file.

 Dir.glob("path/to/your/dir/**/*").select { |entry| File.directory? entry } 

In addition, we do not need to deal with boring . and .. more. The accepted answer was to deal with them.

Answer 12

I think you can test each file to see if it is a directory with FileTest.directory? (file_name) FileTest.directory? (file_name) . See the documentation for FileTest for more information.

Answer 13

We can combine Borh 's answer with johannes's answer to get a pretty elegant solution for getting the directory names in a folder.

 # user globbing to get a list of directories for a path base_dir_path = '' directory_paths = Dir.glob(File.join(base_dir_path, '*', '')) # or recursive version: directory_paths = Dir.glob(File.join(base_dir_path, '**', '*', '')) # cast to Pathname directories = directory_paths.collect {|path| Pathname.new(path) } # return the basename of the directories directory_names = directories.collect {|dir| dir.basename.to_s }