DeepDup 
Deep duplicate Ruby objects. Some objects cannot be dupped like nil,
false, true, numbers, symbols and method objects. In those cases
return themselvese.
Usage
No monkey patching:
dupped = DeepDup.deep_dup('chunky')
dupped = DeepDup.deep_dup(['chunky', [:bacon, { hi: 5 }]])
dupped = DeepDup.deep_dup(['a', :a, 1, { bacon: { chunky: 'yeah' } }])
dupped = DeepDup.deep_dup(SomeClass.new)
array = [1, 2]
array << array
dupped = DeepDup.deep_dup(array)
With monkey patching
require 'deep_dup/core_ext/object'
dupped = 'chunky'.deep_dup
dupped = ['chunky', [:bacon, { hi: 5 }]].deep_dup
dupped = ['a', :a, 1, { bacon: { chunky: 'yeah' } }].deep_dup
dupped = SomeClass.new.deep_dup
array = [1, 2]
array << array
dupped = array.deep_dup
Installation
Add this line to your application's Gemfile:
gem 'deep_dup'
And then execute:
$ bundle
Or install it yourself as:
$ gem install deep_dup
Development
After checking out the repo, run bin/setup to install dependencies. Then, run rake rspec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/ollie/deep_dup.
License
The gem is available as open source under the terms of the MIT License.