Read files in directory on ruby on rails

Question

I am new in ruby on rails and I want to read file names from a specified directory. Can anyone suggest code or any other links?

Thanks

Possible duplicate of [Get names of all files from a folder with Ruby](http://stackoverflow.com/questions/1755665/get-names-of-all-files-from-a-folder-with-ruby) — Erwin Bolwidt, Nov 04 '16 at 04:12
Please, don't be selfish and be grateful with the time people waste here to help you and at least accept a valid answer. People will not help you anymore if they see that you are that selfish. — Jorge Fuentes González, Nov 12 '17 at 20:28

score 33 · Answer 1 · answered Jun 06 '11 at 15:58

33

I suggest you use Dir.entries("target_dir")

Check the documentation here

answered Jun 06 '11 at 15:58

Stobbej

1,080
9
17

score 25 · Answer 2 · answered Feb 07 '14 at 17:23

If you want to get all file under particular folder in array:

files = Dir.glob("#{Rails.root}/private/**/*")

#=> ["/home/demo/private/sample_test.ods", "/home/demo/private/sample_test_two.ods", "/home/demo/private/sample_test_three.ods", "/home/demo/private/sample_test_one.ods"]

score 10 · Answer 3 · answered Jun 06 '11 at 16:35

10

If you want to pull up a filtered list of files, you can also use Dir.glob:

Dir.glob("*.rb")
# => ["application.rb", "environment.rb"]

answered Jun 06 '11 at 16:35

Dylan Markow

123,080
26
284
201

score 9 · Answer 4 · answered Oct 01 '18 at 11:52

9

you can basically just get filenames with File.basename(file)

Dir.glob("path").map{ |s| File.basename(s) }

answered Oct 01 '18 at 11:52

erimicel

121
1
8

score 5 · Answer 5 · edited Jul 10 '20 at 18:21

5

With Ruby on Rails, you should use Rails.root.join, it’s cleaner.

files = Dir.glob(Rails.root.join(‘path’, ‘to’, ‘folder’, '*'))

Then you get an array with files path.

edited Jul 10 '20 at 18:21

cdmo

1,239
2
14
31

answered Jul 08 '19 at 10:15

cercxtrova

1,555
13
30

Игорь Хлебников · Answer 6 · 2019-08-21T19:24:34.180

2

at first, you have to correctly create the path to your target folder

so example, when your target folder is 'models' in 'app' folder

target_folder_path = File.join(Rails.root, "/app/models")

and then this returns an array containing all of the filenames

Dir.children(target_folder_path)

also this code returns array without “.” and “..”

edited Aug 21 '19 at 19:24

answered Aug 21 '19 at 17:44

Игорь Хлебников

591
6
6

score 1 · Answer 7 · answered Mar 30 '21 at 15:06

1

To list only filenames the most recommendable solution is:

irb(main)> Dir.children(Rails.root.join('app', 'models'))
=> ["user.rb", "post.rb", "comment.rb"]

answered Mar 30 '21 at 15:06

Pere Joan Martorell

2,608
30
29

score 0 · Answer 8 · answered May 14 '20 at 07:21

0

If you're looking for relative paths from your Rails root folder, you can just use Dir, such as:

Dir["app/javascript/content/**/*"]

would return, for instance:

["app/javascript/content/Rails Models.md", "app/javascript/content/Rails Routing.md"]

answered May 14 '20 at 07:21

Flavio Wuensche

9,460
1
57
54

Read files in directory on ruby on rails

8 Answers8