Get list of subfolders from a given folder in JRuby

Question

I use JRuby in SikuliX IDE to get list of folders and its subfolders recursively and store its absolute paths(which may contains also dotted characters) in an array. I tried to use following code:

records = Dir.glob 'C:/_private/Files/**/*/'

I got error message:

[error] SyntaxError ( invalid multibyte char (UTF-8) )

Expected output:

C:/_private/Files/dir1
C:/_private/Files/dir1/subdir1
C:/_private/Files/dir1/subdir2
C:/_private/Files/dir2
C:/_private/Files/dir2/subdir1
C:/_private/Files/dir2/subdir2

Look this url may its helps you https://stackoverflow.com/questions/17859530/invalid-multibyte-char-utf-8-error-ruby . Also let me — Kandy, Jan 07 '19 at 10:21
@Kandy : Problem is in absolute path, but not sure, how should I escape it. — plaidshirt, Jan 07 '19 at 10:34
can you provide your more code so I look what actually happening. I have installed ruby in my system — Kandy, Jan 07 '19 at 11:13
Can you please include in your question example directory names that you expect to be returned? This will allow your example and your error to be recreated by anyone answering this question. — anothermh, Jan 07 '19 at 21:00
I think you are looking for folders only so I posted answer below check — ray, Jan 08 '19 at 08:33

score 3 · Accepted Answer · edited Jan 08 '19 at 13:44

3

please check new stuff it producing expected result -

 records = Dir.glob('/E:/ISSUE_Folder/**/*.*')

 records.each do |item|
   puts File.dirname(item)
 end

As you see its going to every folder and sub folder

edited Jan 08 '19 at 13:44

EugZol

6,476
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answered Jan 07 '19 at 11:37

Kandy

673
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It isn't working, if there are dotted characters in path and first of all I need only full path to subdirectories. – plaidshirt Jan 07 '19 at 11:55
dotted means can you send your path – Kandy Jan 07 '19 at 11:57
I am not able to get you.Just edit some more code in your question so that i can reproduce your error at my side. – Kandy Jan 07 '19 at 12:03
I edited question. Problem with your output is, that just subfolders are needed, files are not, but it should work recursively to get all the subfolders. – plaidshirt Jan 07 '19 at 13:38
@plaidshirt I have edited my answer and hope it matches your requirement. – Kandy Jan 08 '19 at 06:39
I added sample expected output to question. I need name of subfolders, not filenames. – plaidshirt Jan 08 '19 at 08:10

ray · Answer 2 · 2019-01-08T10:03:09.730

My rails app have config folder & it have number of files & subfolders, so getting only folders in config,

I used ap below provided by awesome_print gem

> ap Dir.glob "#{Rails.root}/config/**/"
[
    [0] "/home/ray/projects/example_app/config/",
    [1] "/home/ray/projects/example_app/config/initializers/",
    [2] "/home/ray/projects/example_app/config/locales/",
    [3] "/home/ray/projects/example_app/config/environments/"
]

I have test folder inside config/locales/, It is also got by following query.

> ap Dir.glob "#{Rails.root}/config/**/**/"
[
    [0] "/home/ray/projects/example_app/config/",
    [1] "/home/ray/projects/example_app/config/initializers/",
    [2] "/home/ray/projects/example_app/config/locales/",
    [3] "/home/ray/projects/example_app/config/locales/test/",
    [4] "/home/ray/projects/example_app/config/environments/"
]

For further search for sub-folders on third level hierarchy, I will use "#{Rails.root}/config/**/**/**/"

Update:

You can try with following for windows,

irb(main):022:0> Dir.glob("D:/sd/*/")  # first hierarchy 
=> ["D:/sd/df/", "D:/sd/dff/"]   

irb(main):023:0> Dir.glob("D:/sd/*")
=> ["D:/sd/351px-Nvidia_logo.png", "D:/sd/df", "D:/sd/dff"]

irb(main):024:0> Dir.glob("D:/sd/*/*/") # second hierarchy
=> ["D:/sd/dff/ty/"]

irb(main):025:0> Dir.glob("D:/sd/*/*")
=> ["D:/sd/df/351px-Nvidia_logo2.png", "D:/sd/dff/ty"]

You can further get result by adding first and second hierarchy (commented in above) subfolders

Thanks, but how could I use absolute path in Windows? C:/ notation seems invalid. — plaidshirt, Jan 08 '19 at 09:10

score 1 · Answer 3 · answered Jan 09 '19 at 06:58

1

Maybe your JRuby be using less than or equal to ruby 1.9

In Ruby 1.9, the header in your file needs to indicate encoding format.

Add this line at top

# encoding: UTF-8

answered Jan 09 '19 at 06:58

ogelacinyc

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30

Get list of subfolders from a given folder in JRuby

3 Answers3