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Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →

instance method

Gem::RequestSet::GemDependencyAPI#group

group(*groups) { || ... }

Block form for placing a dependency in the given groups.

Example
group :development do
  gem 'debugger'
end

group :development, :test do
  gem 'minitest'
end

Groups can be excluded at install time using ‘gem install -g –without development`. See `gem help install` and `gem help gem_dependencies` for further details.

See also #git_source #load #git #pin_gem_source also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0