This utility script (which someday will be a Rails plug-in) was made in order to help developers to find out unused partials.
gem install discover-unused-partials
To use this script, simply run
If path is not provided, script is executed in the current directory
It will return a list of unmentioned partials. It supports detection of Haml and Erb (both .erb and .rhtml) templates.
To fine-tune script behavior, you can add discover-unused-partials.yml to your app config directory. Content of such file:
# List of files that are not reported keep: - app/views/my/partial/_to_keep.html.erb # List of dynamically generated partials and their sources dynamic: app/controllers/user_controller.rb: - app/views/user/_first_dynamic_partial.html.erb - app/views/user/_second_dynamic_partial.text.haml
Special thanks goes to Willian Molinari (PotHix) and Mateus Linhares (mateuslinhares) that helped me writing this little script.