DeepDup

Deep duplicate Ruby objects. Some objects cannot be dupped like nil, false, true, numbers, symbols and method objects. In those cases return themselves.

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

Add this line to your application's Gemfile:

gem 'deep_dup'

And then execute:

$ bundle

Or install it yourself as:

$ gem install deep_dup

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.

Bug reports and pull requests are welcome on GitHub at https://github.com/ollie/deep_dup.

The gem is available as open source under the terms of the MIT License.

Thanks Ice Nine and Rails for inspiration.