Gem::RequestSet#install_hooks

# File tmp/rubies/ruby-3.1.3/lib/rubygems/request_set.rb, line 296
def install_hooks(requests, options)
  specs = requests.map do |request|
    case request
    when Gem::Resolver::ActivationRequest then
      request.spec.spec
    else
      request
    end
  end

  require_relative "dependency_installer"
  inst = Gem::DependencyInstaller.new options
  inst.installed_gems.replace specs

  Gem.done_installing_hooks.each do |hook|
    hook.call inst, specs
  end unless Gem.done_installing_hooks.empty?
end