This Ruby script lists all gems in the current project that contain native extensions. This is useful for diagnosing extension-related issues and assessing project compatibility across different environments.

gem_extensions_checker.rb

# typed: false

require 'bundler'

gems = Bundler.load.specs.map(&:name)

extensions = gems.map do |gem|
  spec = Gem::Specification.find_by_name(gem)
  { name: gem, extensions: spec.extensions }
end

extensions.each do |extension|
  if extension[:extensions].any?
    p extension
  end
end