require 'replace_quotes/version' require 'string_in_file' # module ReplaceQuotes def self.update(path) return if StringInFile.present('"', path) != true path_old = path path_new = "#{path_old}.new" file_w = open(path_new, 'w') File.readlines(path_old).each do |line| if (line.include? '"') == true && (line.include? "'") == false line_alt = line.tr('"', "'") file_w.write(line_alt) else file_w.write(line) end end file_w.close system("rm #{path_old}") system("mv #{path_new} #{path_old}") end end # Your new gem is a module by default. You may wish to use a class instead.