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::ParamsValidate#validate

Takes a hash of options, along with a map to validate them.  Returns the original
options hash, plus any changes that might have been made (through things like setting
default values in the validation map)

For example:

  validate({ :one => "neat" }, { :one => { :kind_of => String }})

Would raise an exception if the value of :one above is not a kind_of? string.  Valid
map options are:

Source | Google | Stack overflow

Edit

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

cd chef

open lib/chef/mixin/params_validate.rb

Contribute

# Make a new branch

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

# Commit to git

git add lib/chef/mixin/params_validate.rbgit commit -m "better docs for Chef::Mixin::ParamsValidate#validate"

# 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--ParamsValidate-validate-for-pr

hub pull-request

# Celebrate!