Ruby Parser requirement requires Ruby outside of EOL

[kylesnowschwartz]

tl;dr Let's update the find_step.rb script instead of requiring very old ruby versions. It's easy to fix up!

Hello, I use cucumber within Spacemacs

In GNU Emacs 29.1 (build 1, x86_64-apple-darwin18.7.0, NS appkit-1671.60
 Version 10.14.6 (Build 18G9323)) of 2023-08-17 built on
 builder10-14.lan
Windowing system distributor 'Apple', version 10.3.2299
System Description:  macOS 13.3.1

And would like to use the feature-goto-step-definition function. But it requires

gem 'ruby_parser', "~> 3.14.2"
gem 'cucumber-gherkin', "14.0.1"

And when I try to install that version of the ruby parser I get

~/Code/theapp (main)$ gem install ruby_parser -v 3.14.2
ERROR:  Error installing ruby_parser:
	ruby_parser-3.14.2 requires Ruby version ~> 2.2. The current ruby version is 3.1.4.

I didn't want to install such an old version of Ruby, but I tried anyway, but the build failed (I tried a few minor versions too)

WARNING: ruby-2.2.0 is past its end of life and is now unsupported.
It no longer receives bug fixes or critical security updates.

ruby-build: using readline from homebrew
ruby-build: using libyaml from homebrew
ruby-build: using gmp from homebrew

BUILD FAILED (macOS 13.3.1 using ruby-build 20230428)

Inspect or clean up the working tree at /var/folders/3y/6_str63x5y951rxczj0939pr0000gn/T/ruby-build.20231026114030.41789.DjdOo0
Results logged to /var/folders/3y/6_str63x5y951rxczj0939pr0000gn/T/ruby-build.20231026114030.41789.log

Anyway, after that I failed I decided to just fix up the find_step script in my emacs packages directory and it was pretty easy.

After removing the version requirements for gherkin and ruby parser, simply change @ast[:feature] to @ast.feature and change node.try(:examples) to node.respond_to?(:examples) && node&.examples and the package works again for me!

e.g.

  def step_at(line)
    @ast.feature.children.each do |element|
      node = element.scenario || element.background
      next unless node

      node.steps.each do |step|
        next unless step.location.line == line

        return step_result(step, node)
      end
    end
    nil
  end

  # Return hash of step info
  def step_result(step, node)
    result = { 'name' => step.text }
    return result unless node.respond_to?(:examples) && node&.examples

    return result if node.examples[0].nil?

    add_example_info(node, result)
  end

I hope that helps someone who might be coming here trying to get this package to work without ruby 2.2