Rails initializers that clean up git-submodule droppings

remove_empty_vendor_directories.rb

module EmptyDirectoryHelper
  def self.dir_contains_files?(dir)
    entries = Dir.entries(dir).reject { |entry| entry == '.' || entry == '..' }
    entries.any? { |entry| !File.directory?(File.join(dir, entry)) || dir_contains_files?(File.join(dir, entry)) }
  end

  def self.empty_vendor_dirs
    Dir.glob(Rails.root.join("vendor/{gems,plugins}/*")).reject { |dir| dir_contains_files?(dir) }
  end
end


if %w(development test cucumber).include?(RAILS_ENV)  # Only do this in local environments

  empty = EmptyDirectoryHelper.empty_vendor_dirs
  if empty.any?
    puts
    empty.each do |dir|
      puts "Automatically deleting #{dir.sub(Rails.root.to_s + '/', '')}, since it only contains empty directories"
      FileUtils.rm_rf dir
    end
    puts "You can probably ignore any 'config.gem: Unpacked gem' errors above.\n\n"
  end

end

remove_old_submoduled_directories.rb

paths = %w(vendor/gems/first_old_gem-0.1.0
           vendor/gems/second_old_gem-0.2.0)

paths.each do |path|
  dir = Rails.root.join(path)
  if File.directory?(dir)
    puts "Automatically deleting #{dir.sub(Rails.root.to_s + '/', '')}, since it's an old submodule that we removed"
    FileUtils.rm_rf dir
  end
end