DontComment

Do not comment out unused code, use version control system instead and remove it!

If you use version control system, you must not comment out unused code.

For example, you can remove the old implementation in the following code.

# def some_method
#   puts 'an old implementation'
# end

def some_method
  puts 'a new implementation'
end

This tool detects this problem.

class ExampleController < ApplicationController
  # before_action :validate_foobar
end

Sometime we comment out validation or something for debug. If we forget to restore the comment before we commit the change, it will be a serious bug.

We can avoid the bug by this tool.

Maybe, This tools will make many false positives. I design this tools to use with a pull-request. Do not use use this tool for all ruby files in your repository. It probably will not be useful.

Add this line to your application's Gemfile:

gem 'dont_comment'

And then execute:

$ bundle

Or install it yourself as:

$ gem install dont_comment

• Ruby 2.4 or higher

$ dont_comment some/ruby/file/path.rb
some/ruby/file/path.rb:3: Do not comment out unused code, use version control system instead and remove it!
some/ruby/file/path.rb:7: Do not comment out unused code, use version control system instead and remove it!

Bug reports and pull requests are welcome on GitHub at https://github.com/pocke/dont_comment.