Rubocop::DirMethods

This gem is a tool designed to extend the functionality of RuboCop. It provides single RuboCop/Cop with capability to define and enforce custom naming conventions for public methods within specific directories in your Ruby projects. With this gem, you can maintain consistent coding practices and preserve the integrity of your project's codebase.

Add this line to your application's Gemfile:

gem 'rubocop-dir_methods', require: false

And then execute:

$ bundle install

Or install it yourself as:

$ gem install rubocop-dir_methods

Imagine you have a Rails application with a classic controllers directory:

- sample_rails_app
    - app
        - controllers
            - application_controller.rb
            - sample_controller.rb
        ...    
    ...        

And you wish to enforce RESTful method naming conventions to help developers think in terms of REST. You can configure your project to allow only RESTful method names within the controllers directory:

# .rubocop.yml
require:
  - rubocop-dir_methods

Naming/DirMethods:
  dirs:
    app/controllers:
      allowed_methods:
        - new
        - create
        - show
        - edit
        - update
        - destroy
      reason: "We want to follow RESTful design in controllers"

If a developer creates a method that does not adhere to these conventions, the linter will promptly notify them, ensuring compliance with the established guidelines before the code review process:

# app/controllers/sample_controller.rb
class SampleController < ApplicationController
  def sample_public_method
    sample_implementation
  end
end 

After running rubocop:

rubocop
...
app/controllers/sample_controller.rb:3:3: C: Naming/DirMethods: Invalid public method name: sample_public_method (reason: We want to follow RESTful design in controllers)
  def sample_public_method ...
  ^^^^^^^^^^^^^^^^^^^^^^^^

After checking out the repo, run bin/setup to install dependencies. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install.

Bug reports and pull requests are welcome on GitHub at https://github.com/GeorgeGorbanev/rubocop-dir_methods.

The gem is available as open source under the terms of the MIT License.