Rails - Jul 2007 - Using system() to execute a script outside of Rails but in a directory in the Rails app...

I''m trying to hack around a previously mentioned RMagick problem,
confirmed to exist inside of Rails but not outside.
Thus, I''d like to call a Ruby script from with in a Rails controller.
Like so:
system("#{RAILS_ROOT}/public/images/thumb_and_comp.rb",
"#{@asset.file_name}")

But it never seems to get executed.
Permissions are set to 755 on the script.
Any suggestion?


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If you''re just trying to do thumbnails, better to look at how  
file_column or a similar plugin accomplish that than to shell out to  
a different process. Rails is a one-in-one-out pipe, so blocking  
requests on a shell process could really screw up your performance.

On Jul 25, 2007, at 4:33 PM,
dangerwillrobinsondanger-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
> I''m trying to hack around a previously mentioned RMagick problem,
> confirmed to exist inside of Rails but not outside.
> Thus, I''d like to call a Ruby script from with in a Rails
controller.
> Like so:
> system("#{RAILS_ROOT}/public/images/thumb_and_comp.rb",
> "#{@asset.file_name}")
>
> But it never seems to get executed.
> Permissions are set to 755 on the script.
> Any suggestion?
>
>
> >

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I know Rails is a single threaded process, because Ruby is as well.
But at this point even the maintainer of RMagick (who I''ve been
talking to a lot the last few days) is mystified by how my thumbs can
be correct when run from a straight Ruby script on the same system,
but through Rails it gets screwed up.




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Well, I dunno, but I used file_column on one of my sites that''s been  
happily purring away and the relevant code is:

img = ::Magick::Image::read(absolute_path).first
resize_image(img, version_options[:geometry], absolute_path(name))

Where version_options[:geometry] is, as you might expect, the  
geometry to resize to a thumbnail. Are you doing something different?

On Jul 25, 2007, at 7:03 PM,
dangerwillrobinsondanger-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
> I know Rails is a single threaded process, because Ruby is as well.
> But at this point even the maintainer of RMagick (who I''ve been
> talking to a lot the last few days) is mystified by how my thumbs can
> be correct when run from a straight Ruby script on the same system,
> but through Rails it gets screwed up.
>
>
>
>
> >

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