Routing problem with JRuby/Rails

Hi everyone,

I just got started on JRuby, and tried to run our Rails application  
with it. I ran into a problem, which I debbugged (see description  
below) - however I'm not quite sure what to do with it. The root cause  
is rails assuming a particular quirk of the Dir[...] method, which  
JRuby doesn't replicate. So I have monkeypatched my Rails for now, but  
I'm not sure if this should be "fixed" in JRuby or taken to Rails...

Problem description:

JRuby interferes with routing where there is the following arrangement  
of controllers

     * something_controller.rb
     * something/ +- sub_controller.rb

this will not correctly match the 'something/sub' controller. The  
reason being:

     * The Route#recognize method will engage in creating meta-methods  
that match against regular expressions. (From Route#write_recognition)
     * For the default route, this will eventually land in  
ControllerSegment#regexp_chunk?
     * This will query Routing#possible_controllers
     * This method will collect the file paths from the controllers,  
using Dir.../**/*_controller.rb"

The controllers are then put into the regular expression.

For MRI, the Dir method reports files in subdirectories first. The  
JRuby implementation does not.

As a result the 'something' is put into the regexp first, and  
'something/sub' is matched as (something)/(sub). For MRI, 'something/
sub' is tested first, and it is correctly matched as (something/sub).

Ciao,
                 Daniel


--
Daniel Hahn
Software Architect
hahn@...

Net7
Via Marche 8a - 56123 Pisa
http://www.netseven.it/





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