Class: CfnBackup::Utils

Inherits:
Object
  • Object
show all
Includes:
Log
Defined in:
lib/cfnbackup/utils.rb

Class Method Summary collapse

Methods included from Log

colors, logger, logger=

Class Method Details

.deep_merge(global, custom) ⇒ Object 



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# File 'lib/cfnbackup/utils.rb', line 8

def self.deep_merge(global, custom)
  # Iterate through each key in the custom yaml file
  custom.each do |k,v|
    Log.logger.debug("Checking global config for #{k}:#{v}")
    # Check if the key exists in the global config
    if global.key? k
      # Check if the current key is a hash
      if global[k].class == Hash && custom[k].class == Hash
        # If it is, we will need to run the deep merge on this again to account for nested config
        Log.logger.debug("Key #{k} is a Hash present in both templates, running merge recursively")
        global[k] = deep_merge(global[k], v)
      else
        # Once (if any) recursion is complete, override the global value for the current key with the custom value
        Log.logger.debug("Overriding defaults with key-value pair #{k}:#{v}")
        global[k] = v
      end
    else
      # If it doesn't exist in the global config, merge it in
      Log.logger.debug("Key-value pair #{k}:#{v} not found in original config, appending")
      global[k] = v
    end
  end
  return global
end