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Examine Folder Contents?

Joshua Muheim

4/1/2006 12:41:00 PM

Hi all

I'd like Ruby to open a folder, search it for files and then store all
files names of .png files in an array and close the folder. So after
this I can do anything I like with the png files in the array...

How do I do this? Thanks a lot for help. :-)
Joshua

--
Posted via http://www.ruby-....
9 Answers

benjohn

4/1/2006 12:47:00 PM

0


On 1 Apr 2006, at 13:41, Joshua Muheim wrote:

> Hi all
>
> I'd like Ruby to open a folder, search it for files and then store all
> files names of .png files in an array and close the folder. So after
> this I can do anything I like with the png files in the array...
>
> How do I do this? Thanks a lot for help. :-)
> Joshua

You'll want the class Dir, and the class method glob.
png_files = Dir.glob(File.join(path_of_folder, '*.png'))

Cheers,
Benj

Joshua Muheim

4/1/2006 4:06:00 PM

0

> You'll want the class Dir, and the class method glob.
> png_files = Dir.glob(File.join(path_of_folder, '*.png'))
>
> Cheers,
> Benj

Thank you so far. I'm using this in Ruby on Rails and tried the
following:

@images = Dir.glob('/images/content/parties/photo_galleries/1/',
'*.jpg')

Sadly this delivers me an empty array, but there are about 20 jpg files
in this folder... :-/

Thanks for help... Josh

--
Posted via http://www.ruby-....

Stephen Waits

4/1/2006 4:26:00 PM

0


On Apr 1, 2006, at 8:06 AM, Joshua Muheim wrote:

> @images = Dir.glob('/images/content/parties/photo_galleries/1/',
> '*.jpg')

Try:

@images = Dir.glob('/images/content/parties/photo_galleries/1/
*.jpg')

--Steve

Daniel Seuthe

4/1/2006 9:24:00 PM

0

Joshua Muheim schrieb:
> I'd like Ruby to open a folder, search it for files and then store all
> files names of .png files in an array and close the folder. So after
> this I can do anything I like with the png files in the array...

This is part of a RHTML file for showing all JPEG files as a list:

<% bilder = Dir["*.jpeg"] %>
<ul>
<% bilder.sort.each do |bild| %>
<li><a href="<%= bild %>" /><%= bild.chomp ".jpeg" %></a></li>
<% end %>
</ul>

This is part of a RHTML file for randomly show a picture from a
picture list like above:

<% bilder = Dir["../*.jpeg"] %>
<img src="<%=bilder[rand(bilder.length - 1)] %>" alt="" />

Daniel

baumanj

4/2/2006 3:27:00 PM

0

This is operating on the actual filesystem, so you have to use real
paths, not the URI for the web application. Try this:

File.join(RAILS_ROOT, 'public')

@images = Dir.glob(File.join(RAILS_ROOT,
'public/images/content/parties/photo_galleries/1/'), '*.jpg')

Joshua Muheim wrote:
> > You'll want the class Dir, and the class method glob.
> > png_files = Dir.glob(File.join(path_of_folder, '*.png'))
> >
> > Cheers,
> > Benj
>
> Thank you so far. I'm using this in Ruby on Rails and tried the
> following:
>
> @images = Dir.glob('/images/content/parties/photo_galleries/1/',
> '*.jpg')
>
> Sadly this delivers me an empty array, but there are about 20 jpg files
> in this folder... :-/
>
> Thanks for help... Josh
>
> --
> Posted via http://www.ruby-....

Joshua Muheim

4/4/2006 5:55:00 PM

0

Thank you all, guys!

I have now the following array:

-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-01.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-02.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-03.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-04.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-05.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-06.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-07.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-08.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-09.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-10.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-11.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-12.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-13.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-14.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-15.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-16.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-17.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-18.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-19.jpg
-
/Users/Josh/Webwork/PsyGuide.org/public/../config/../public/images/content/parties/photo_galleries/1/2005_10_08_-_claudias_abschieds_party-20.jpg

Is there a way to clean the path (I mean the unnecessary "/..")?

Thanks. :-)

--
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Ara.T.Howard

4/4/2006 6:04:00 PM

0

Joshua Muheim

4/4/2006 6:04:00 PM

0

Oh, and how do I cut the RAILS_ROOT away again? So I can use the paths
in the RHTML file again...? :-)

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Chris Hulan

4/4/2006 6:44:00 PM

0

You might want to look at Pathname
(http://ruby-doc.org/stdlib/libdoc/pathname/rdoc/classes/Pat...)

It wraps alot of the File related libs into a nice package

Cheers