From: Ryan Davis <ryand-ruby@...>
Date: 2011-01-11T05:06:44+09:00
Subject: [ruby-core:34312] Re: [Ruby 1.9-Bug#4255][Closed] When on a case-insensitive filesystem, "loaded features" search in require should ignore case


On Jan 10, 2011, at 06:41 , Benoit Daloze wrote:

> On 10 January 2011 14:47, Nobuyoshi Nakada <redmine@ruby-lang.org> wrote:
>> This issue was solved with changeset r30508.
>> 
>> * include/ruby/defines.h (CASEFOLD_FILESYSTEM): HFS+ is case insensitive.
> 
> That is not always true, unfortunately, you can have a HFS+ case
> sensitive partition.
> However, it seems the system partition is formatted by default as case
> insensitive HFS+.
> So, it would be best to check case sensitivity for HFS+ instead of
> assuming, if that is possible.

Yup. I run case-sensitive HFS+ on both my root and backup disk, but interact with case-insensitive disks from time to time.

> Also, it is not optimal to determine case sensitivity at compile time.
> The ideal would be to be able check the case sensitivity of the
> partition where the concerned file is.
> But I guess that is not easy and would impact too much the performance.

Agreed that you can't determine at compile time. It could switch from run to run... But I think it would be ok to check once per filesystem. But as soon as you do that you open up another set of cross-platform issues (determining mounts, etc).