Running a command like that is actually removing any previous default
bundler specs in the default RubyGems installation (outside of destdir).
It should instead only modify destdir.
5ed275383c
Since a few commits ago, we no longer call `Gem::Specification.reset`
after each invocation of `Gem::Installer#install`. This means we don't
call it when the default Bundler is installed during `gem update
--system`. This causes no issues until the end of the upgrade process
when:
* The previous default Bundler spec is removed from disk.
* All specification stubs are turned into real specifications by loading
them from disk. But the one for Bundler no longer exists so
materializes to `nil` and regenerating binstubs crashes like this:
```
Bundler 2.4.0.dev installed
RubyGems 3.4.0.dev installed
Regenerating binstubs
ERROR: While executing gem ... (NoMethodError)
undefined method `platform' for nil:NilClass
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/commands/pristine_command.rb:116:in `block in execute'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/specification.rb:981:in `block in each'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/specification.rb:980:in `each'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/specification.rb:980:in `each'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/commands/pristine_command.rb:116:in `map'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/commands/pristine_command.rb:116:in `each'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/commands/pristine_command.rb:116:in `select'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/commands/pristine_command.rb:116:in `execute'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/command.rb:323:in `invoke_with_build_args'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/command.rb:301:in `invoke'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/commands/setup_command.rb:604:in `regenerate_binstubs'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/commands/setup_command.rb:183:in `execute'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/command.rb:323:in `invoke_with_build_args'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/command_manager.rb:185:in `process_args'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/command_manager.rb:149:in `run'
/Users/deivid/Code/rubygems/rubygems/lib/rubygems/gem_runner.rb:51:in `run'
setup.rb:33:in `<main>'
```
We fix it by more carefully managing the removal of the previous default
Bundler gem.
9989f6d5af
This makes it easier to test the upgrade process locally and should be
more efficient in certain cases where the user has already upgraded in
the past.
ed6cc88494
