From: "nobu (Nobuyoshi Nakada) via ruby-core" <ruby-core@...>
Date: 2023-05-29T02:56:34+00:00
Subject: [ruby-core:113691] [Ruby master Misc#19691] File.realpath on Windows does not return actual case of the file

Issue #19691 has been updated by nobu (Nobuyoshi Nakada).


`File.absolute_path` and `File.expand_path` normalize a short path to the long path, and the case too (maybe as a side effect).

----------------------------------------
Misc #19691: File.realpath on Windows does not return actual case of the file
https://bugs.ruby-lang.org/issues/19691#change-103336

* Author: MSP-Greg (Greg L)
* Status: Open
* Priority: Normal
----------------------------------------
I don't know what I think of this (expected or bug), but recently in a forum I saw an issue that I don't recall accidentally doing myself.  An equivalent example:
```
ruby -rsingleton -rSingleton -e "puts 'case issue'"
```

Note the change of casing with `Singleton`.

On case insensitive file systems, the above will double load the file, which errors.

Obviously, on case sensitive file systems, it errors with `cannot load such file -- Singleton`

So, options are:

A. No change to current behavior, which I'm fine with.

B. If the OS is case insensitive, don't reload the file, and maybe a warning that `Singleton` and `singleton` are equivalent. 




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