convert_tries_to_safe_nav.rb

TRY_REGEX = /\.try!?\((?<args>.*?)\)/
Dir.glob("app/**/*{.rb,.erb,.jbuilder}").each do |fname|
  text = File.open(fname, 'rb', &:read)
  new_text = text.gsub(TRY_REGEX) do
    (method_name, *args) = Regexp.last_match[:args].tr(' ', '').split(',')
    if args.any?
      "&#{method_name.tr(':', '.')}(#{args.join(', ')})"
    else
      "&#{method_name.tr(':', '.')}"
    end
  end

  File.open(fname, 'w') { |f| f.write(new_text) }
end