Gem::Commands::CheckCommand#check_gems

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/commands/check_command.rb, line 41
def check_gems
  say "Checking gems..."
  say
  gems = begin
           get_all_gem_names
         rescue StandardError
           []
         end

  Gem::Validator.new.alien(gems).sort.each do |key, val|
    if val.empty?
      say "#{key} is error-free" if Gem.configuration.verbose
    else
      say "#{key} has #{val.size} problems"
      val.each do |error_entry|
        say "  #{error_entry.path}:"
        say "    #{error_entry.problem}"
      end
    end
    say
  end
end