To trace assignment to instance variable. This is experimental implement.
Add this line to your application's Gemfile:
gem 'instance_variable_tracer'And then execute:
$ bundle
Or install it yourself as:
$ gem install instance_variable_tracer
InstanceVariableTracer.start(target_instance_variable_name: "@books")When @books instance variable is assign, this InstanceVariableTracer print logs like this (using p method).
@books is assigned in path_to_app/app/controllers/books_controller.rb:7 index BooksController
The main file is lib/instance_variable_tracer.rb
Bug reports and pull requests are welcome on GitHub at https://github.com/igaiga/instance_variable_tracer. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.
The gem is available as open source under the terms of the MIT License.
Everyone interacting in the InstanceVariableTracer project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.