[ruby-core:120121] [Ruby master Bug#20920] When loading a file, __FILE__ gets relative paths expanded only when they start with "./"

Issue #20920 has been updated by vo.x (Vit Ondruch).


This is very related to #16978

And all this started with introduction of `require_relative` and it is a me=
ss since then. IMHO, the path expansion is evil. It prevents usage of symli=
nks, it is troublesome with modifications of `$LOAD_PATH`, etc.

----------------------------------------
Bug #20920: When loading a file, __FILE__ gets relative paths expanded only=
 when they start with "./"
https://bugs.ruby-lang.org/issues/20920#change-110872

* Author: deivid (David Rodr=EDguez)
* Status: Open
* ruby -v: ruby 3.3.6 (2024-11-05 revision 75015d4c1f) [arm64-darwin23]
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
----------------------------------------
```
$ cat foo.rb
puts __FILE__

$ ruby foo.rb             =20
foo.rb

$ ruby ./foo.rb           =20
./foo.rb

$ ruby -e 'load "foo.rb"' =20
foo.rb

$ ruby -e 'load "./foo.rb"'
/full/path/to/foo.rb
```

More than an issue, this is mainly a question. In principle, it seems more =
consistent to me to either expand or not expand, but this is not causing re=
al issues for me. I just want to figure out what to do with one pending spe=
c in Bundler (https://github.com/rubygems/rubygems/blob/cd65092deb316875982=
0c613ecbc54cd9e06d46f/bundler/spec/commands/exec_spec.rb#L1023-L1028).



--=20
https://bugs.ruby-lang.org/
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