chef

Chef::Mixin::DeepMerge#deep_merge!

Deep Merge core documentation.
deep_merge! method permits merging of arbitrary child elements. The two top level
elements must be hashes. These hashes can contain unlimited (to stack limit) levels
of child elements. These child elements to not have to be of the same types.
Where child elements are of the same type, deep_merge will attempt to merge them together.
Where child elements are not of the same type, deep_merge will skip or optionally overwrite
the destination element with the contents of the source element at that level.
So if you have two hashes like this:
  source = {:x => [1,2,3], :y => 2}
  dest =   {:x => [4,5,'6'], :y => [7,8,9]}
  dest.deep_merge!(source)
  Results: {:x => [1,2,3,4,5,'6'], :y => 2}
By default, "deep_merge!" will overwrite any unmergeables and merge everything else.
To avoid this, use "deep_merge" (no bang/exclamation mark)

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