From: Marnen Laibow-Koser <marnen@...>
Date: 2010-01-18T01:24:28+09:00
Subject: Re: Which source file?

Ralph Shnelvar wrote:
> 
>>>>> Windows development environment.
>>>> 
>>>> How is that relevant?
>>> 
>>> I don't know!   How files are handled might be different on different 
>>> development platforms.
>> 
>> I suppose.  But in this case, no.  So far as I know, there's no 
>> significant difference in Ruby source code handling between OSes, except 
>> perhaps for case-sensitivity issues.  (That said, I don't use Windows, 
>> so it's conceivably that I'm not aware of something.)
> 
> Ruby (Rails?) does so much that is different depending on case.
> 
> Windows stores file names with case sensitivity but accesses the files 
> without regard to filename case.

Right.  The filesystem is case-preserving but not case-sensitive.

> 
> Thus the Filenames "SomeFile" and "Somefile" are different strings, they 
> refer to the same underlying file in Windows.
> 
> But if Rails cares about filename case sensitivity ...

Rails' autoloading routines expect snake-case filenames, so MyModel will 
be loaded from my_model.rb.

Now, on Windows, if there's a file My_Model.rb, then the filesystem will 
return that when my_model.rb is requested, whereas most *nix filesystems 
will not.

But that's up to the filesystem. AFAIK Ruby simply requests a particular 
file, and doesn't know anything about how the filesystem will satisfy 
that request.

> 
> So ... does Rails care about case sensitivity in filenames?

Sort of, as outlined above.

I have found it to be best to always act as if the filesystem is 
case-sensitive, even if it isn't.

Best,
-- 
Marnen Laibow-Koser
http://www.marnen.org
marnen@marnen.org
-- 
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