chef

https://github.com/opscode/chef

Ruby

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

Chef::DSL::DeclareResource#find_resource

Lookup a resource in the resource collection by name.  If the resource is not found
the will be no exception raised and the call will return nil.  If a block is given and
no resource is found it will create the resource using the block, if the resource is
found then the block will not be applied.  The block version is similar to create_if_missing

Source | Google | Stack overflow

Edit

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

cd chef

open lib/chef/dsl/declare_resource.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Chef--DSL--DeclareResource-find_resource-for-pr

# Commit to git

git add lib/chef/dsl/declare_resource.rbgit commit -m "better docs for Chef::DSL::DeclareResource#find_resource"

# 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--DSL--DeclareResource-find_resource-for-pr

hub pull-request

# Celebrate!