- Use the `HOMEBREW_PORTABLE_RUBY_VERSION` environment variable to
determine the version of the Portable Ruby to use in
`vendor-install.sh` and `ruby.sh`.
- Replace the `docs/.ruby-version` file with a symlink to
`Library/Homebrew/.ruby-version`.
- Fix an incorrect `HOMEBREW_LIBRARY` comment.
- Use a simpler `HOMEBREW_USING_PORTABLE_RUBY` definition.
- This doesn't work still, but now for new reasons.
```
NoMethodError:
undefined method `b' for #<Binding:0x0000000107a7e088>
binding.b
^^
# ./test/migrator_spec.rb:72:in `block (3 levels) in <top (required)>'
```
and if I add `require "debug"` to the spec_helper again it gives:
```
LoadError:
cannot load such file -- debug
```
but, doing a `require "debug"; binding.b` in `migrator_spec` _does_ work.
Where is the require coming from where it works some of the time but not through all of the layers we have?
- This is cleaner than vendoring a whole bunch of new gems and pinning `psych`.
- Thanks for the pointer, Bo!
- It doesn't work, though?
```
❯ brew tests --only=migrator --debug
Error: cannot load such file -- debug/debug.so
Warning: Removed Sorbet lines from backtrace!
Rerun with `--verbose` to see the original backtrace
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/lib/ruby/gems/3.1.0/gems/debug-1.6.3/lib/debug/frame_info.rb:16:in `require'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/lib/ruby/gems/3.1.0/gems/debug-1.6.3/lib/debug/frame_info.rb:16:in `rescue in <module:DEBUGGER__>'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/lib/ruby/gems/3.1.0/gems/debug-1.6.3/lib/debug/frame_info.rb:13:in `<module:DEBUGGER__>'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/lib/ruby/gems/3.1.0/gems/debug-1.6.3/lib/debug/frame_info.rb:3:in `<top (required)>'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/lib/ruby/gems/3.1.0/gems/debug-1.6.3/lib/debug/session.rb:31:in `require_relative'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/lib/ruby/gems/3.1.0/gems/debug-1.6.3/lib/debug/session.rb:31:in `<top (required)>'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/lib/ruby/gems/3.1.0/gems/debug-1.6.3/lib/debug.rb:3:in `require_relative'
/opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.1.4/lib/ruby/gems/3.1.0/gems/debug-1.6.3/lib/debug.rb:3:in `<top (required)>'
/opt/homebrew/Library/Homebrew/dev-cmd/tests.rb:48:in `require'
/opt/homebrew/Library/Homebrew/dev-cmd/tests.rb:48:in `run'
/opt/homebrew/Library/Homebrew/brew.rb:89:in `<main>'
```
