ist all available cucumber steps

Rakefile

#
# Based on https://gist.github.com/778535
# In turn based on http://www.natontesting.com/2010/01/11/updated-script-to-list-all-cucumber-step-definitions/
#
desc 'List all defined cucumber steps in features/steps/**/*.rb'
task :steps do
  step_definition_dir = "features/steps"
  step_files = Dir.glob(File.join(step_definition_dir,'**/*.rb'))
  print_steps(step_files)
end

desc 'List all defined cucumber steps in features/**/*.rb, following any required files (might take a while)'
task :allsteps do
  features_dir = "features"
  step_candidates = Dir.glob(File.join(features_dir,'**/*.rb'))
  step_files = deep_find_step_files(step_candidates)
  print_steps(step_files)
end

#
# follow all the gem requires, and identify which files have steps in them
#
def deep_find_step_files(step_candidates)
  step_files = []
  step_candidates.each do |candidate|
  begin
    File.foreach(candidate) do |line|
      if line =~ /require ['"](.*\/.*)['"]/
        if libfile = `gem which #{$1} 2>#{ENV['OS'] == 'Windows_NT' ? 'NUL' : '/dev/null'}`.chomp
          step_candidates << libfile unless step_candidates.include?(libfile) || libfile =~ /.*\.so$/
        end
      elsif line =~ /^\s*(?:Given|When|Then)\s+/
        step_files << candidate
      end
    end
    rescue
      puts "--- skipped #{candidate} due to error"
    end
  end
  step_files
end

#
# find the Given/When/Thens in the given step_files and print the results to stdout
# 
def print_steps(step_files)
  require 'hirb'
  extend Hirb::Console
  
  step_files.uniq.each do |step_file|
    puts "File: #{step_file}"
    results = []
    File.new(step_file).read.each_line.each_with_index do |line, number|
      next unless line =~ /^\s*(?:Given|When|Then)\s+|\//
      res = /(?:Given|When|Then)[\s\(]*\/(.*)\/([imxo]*)[\s\)]*do\s*(?:$|\|(.*)\|)/.match(line)
      next unless res
      matches = res.captures
      results << OpenStruct.new(
        :steps => matches[0],
        :modifier => matches[1],
        :args => matches[2]
      )
    end
    table results, :resize => false, :fields=>[:steps, :modifier, :args]
    puts ""
  end
end