Замена строк в файле виа reqexp

Замена строк в файле виа reqexp

namespace :db do
  task :parse_lines => :environment do
    new_file = File.open("#{Rails.root}/lib/tasks/dummy_2.rake", 'w+')
    
    reqexp_list = []
    [/:id=>\d\d\d,/i, /:id=>\d\d,/i, /:id=>\d,/i].each do |reqexp|
      reqexp_list << Regexp.new(reqexp)
    end
    
    File.open("#{Rails.root}/lib/tasks/dummy_1.rake", 'r+') do |file|
      file.each_line do |line|
        
        replace = false
        
        reqexp_list.each do |reqexp|
          if line.match(reqexp)
            line = line.gsub(reqexp, '')
            replace = true
          end
        end
        
        new_file << line
      end
      new_file.close
      file.close
    end
  end
end