Misc #19691
openFile.realpath on Windows does not return actual case of the file
Description
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.
Updated by MSP-Greg (Greg L) about 1 year ago
Sorry, accidentally used the default 'Tracker type', which is 'Bug'. Meant to post it as 'Misc'
Updated by nobu (Nobuyoshi Nakada) about 1 year ago
- Tracker changed from Bug to Misc
- Status changed from Open to Feedback
- Backport deleted (
3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN)
I think it has changed since 3.1.
$ ruby3.0 -v -W0 -rsingleton -rSingleton -e 'p $"[-2..-1]'
ruby 3.0.6p216 (2023-03-30 revision 23a532679b) [x86_64-darwin22]
/opt/local/lib/ruby/3.0.0/Singleton.rb:152:in `undef_method': undefined method `extend_object' for class `Singleton' (NameError)
Did you mean? extended
from /opt/local/lib/ruby/3.0.0/Singleton.rb:152:in `singleton class'
from /opt/local/lib/ruby/3.0.0/Singleton.rb:140:in `<module:Singleton>'
from /opt/local/lib/ruby/3.0.0/Singleton.rb:94:in `<top (required)>'
from <internal:/opt/local/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
from <internal:/opt/local/lib/ruby/3.0.0/rubygems/core_ext/kernel_require.rb>:85:in `require'
bash: exit 1
$ ruby3.1 -v -rsingleton -rSingleton -e 'p $"[-2..-1]'
ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e) [x86_64-darwin22]
["/opt/local/lib/ruby/3.1.0/did_you_mean.rb", "/opt/local/lib/ruby/3.1.0/singleton.rb"]
Updated by jeremyevans0 (Jeremy Evans) about 1 year ago
- Subject changed from Case insensitive file systems, require filename casing to File.realpath on Windows does not return actual case of the file
- Status changed from Feedback to Open
Looks like #17885 fixed the issue for case-insensitive Mac OS file systems. However, it is not fixed on Windows because File.realpath
on Windows doesn't fix the case:
File.realpath('a')
# => "C:/Users/jeremye/a"
File.realpath('A')
# => "C:/Users/jeremye/A"
Not sure if that is considered a bug in File.realpath
, but it would be nice if File.realpath
returned the actual case of the file.
Updated by MSP-Greg (Greg L) about 1 year ago
Thanks.
Using the following Windows Rubies, I get different results. All double load and throw NameError
:
ruby 3.1.4p223 (2023-03-30 revision 957bb7cb81) [x64-mingw-ucrt]
ruby 3.2.2 (2023-03-30 revision e51014f9c0) [x64-mingw-ucrt]
ruby 3.3.0dev (2023-05-24T13:45:34Z master 6d976eb534) [x64-mingw-ucrt]
ruby 3.3.0dev (2023-05-24T13:45:34Z master 6d976eb534) [x64-mswin64_140]
Updated by MSP-Greg (Greg L) about 1 year ago
Thanks. I hadn't looked yet. JFYI, File.absolute_path
does seem to work correctly.
# file name is Greg.txt
puts File.absolute_path 'C:/tmpdir/greg.txt' #=> C:/tmpdir/Greg.txt
# file name is ggreg.txt
puts File.absolute_path 'C:/tmpdir/GGreg.txt' #=> C:/tmpdir/ggreg.txt
Updated by nobu (Nobuyoshi Nakada) about 1 year ago
File.absolute_path
and File.expand_path
normalize a short path to the long path, and the case too (maybe as a side effect).