Class: CfnMonitor::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/cfn_monitor/utils.rb

Class Method Summary collapse

Class Method Details

.deep_merge(a, b) ⇒ Object

Merge Hash B into hash A. If any values or hashes as well, merge will be performed recursively Returns Hash A with updated values



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# File 'lib/cfn_monitor/utils.rb', line 6

def self.deep_merge(a, b)

  # Loop over key/value pairs
  b.each { |key, value|

    # If key from B present in map A
    if a.key? key

      # If both are hashes call recursively
      if (a[key].class == Hash and b[key].class == Hash)
        a[key] = deep_merge(a[key], value)
      else
        # Overwrite value with value from B
        a[key] = value
      end
    else
      # Add key from B
      a[key] = value
    end
  }

  # Return hash a
  return a
end