class Pups::MergeCommand

Attributes

filename[R]
merge_hash[R]

Public Class Methods

deep_merge(first, second, *args) click to toggle source
# File lib/pups/merge_command.rb, line 32
def self.deep_merge(first, second, *args)
  args ||= []
  merge_arrays = args.include? :merge_arrays

  merger = proc { |_key, v1, v2|
    if v1.is_a?(Hash) && v2.is_a?(Hash)
      v1.merge(v2, &merger)
    elsif v1.is_a?(Array) && v2.is_a?(Array)
      merge_arrays ? v1 + v2 : v2
    elsif v2.is_a?(NilClass)
      v1
    else
      v2
    end
  }
  first.merge(second, &merger)
end
from_str(command, params) click to toggle source
# File lib/pups/merge_command.rb, line 7
def self.from_str(command, params)
  new(command, params)
end
new(command, params) click to toggle source
# File lib/pups/merge_command.rb, line 18
def initialize(command, params)
  @params = params

  filename, target_param = Pups::MergeCommand.parse_command(command)
  @filename = interpolate_params(filename)
  @merge_hash = params[target_param]
end
parse_command(command) click to toggle source
# File lib/pups/merge_command.rb, line 11
def self.parse_command(command)
  split = command.split(' ')
  raise ArgumentError, "Invalid merge command #{command}" unless split[-1][0] == '$'

  [split[0..-2].join(' '), split[-1][1..-1]]
end

Public Instance Methods

run() click to toggle source
# File lib/pups/merge_command.rb, line 26
def run
  merged = self.class.deep_merge(YAML.load_file(@filename), @merge_hash)
  File.open(@filename, 'w') { |f| f.write(merged.to_yaml) }
  Pups.log.info("Merge: #{@filename} with: \n#{@merge_hash.inspect}")
end