chef

https://github.com/opscode/chef

Ruby

A systems integration framework, built to bring the benefits of configuration management to your entire infrastructure.

Chef::Mixin.const_missing

Const missing hook to look up deprecated constants defined with
deprecate_constant. Emits a warning to the logger and returns the
replacement constant. Will call super, most likely causing an exception
for the missing constant, if +name+ is not found in the
deprecated_constants collection.

Source | Google | Stack overflow

Edit

git clone [email protected]:opscode/chef.git

cd chef

open lib/chef/mixin/deprecation.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Chef--Mixin-const_missing-for-pr

# Commit to git

git add lib/chef/mixin/deprecation.rbgit commit -m "better docs for Chef::Mixin.const_missing"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Chef--Mixin-const_missing-for-pr

hub pull-request

# Celebrate!