Module: DDSL::Functions

Extended by:
Transproc::Registry
Defined in:
lib/ddsl/functions.rb

Class Method Summary collapse

Class Method Details

.expand_options(hash) ⇒ Object 



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# File 'lib/ddsl/functions.rb', line 36

def self.expand_options(hash)
  hash.map do |key, value|
    case value
    when String
      [key, value]
    when TrueClass, FalseClass
      key
    when Array
      value.map { |v| [key, v] }
    when Hash
      value.map { |sub_key, v| [key, "#{sub_key}=#{v}"] }
    end
  end.flatten
end

.idempotency(value) ⇒ Object 



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# File 'lib/ddsl/functions.rb', line 12

def self.idempotency(value)
  value
end

.map_keys_matching(hash, regex, func) ⇒ Object 



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# File 'lib/ddsl/functions.rb', line 16

def self.map_keys_matching(hash, regex, func)
  hash.map do |key, value|
    if regex&.match(key)
      [func.call(key), value]
    else
      [key, value]
    end
  end.to_h
end

.optionize_keys(hash) ⇒ Object 



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# File 'lib/ddsl/functions.rb', line 26

def self.optionize_keys(hash)
  [
    [:map_keys_matching, /\w+_\w+/, ->(x) { x.tr('_', '-') }],
    [:map_keys_matching, /^.{2,}$/, ->(x) { '--' + x }],
    [:map_keys_matching, /^.{1}$/, ->(x) { '-' + x }]
  ].inject(Functions[:idempotency]) do |pipe, args|
    pipe >> Functions[*args]
  end.call(hash)
end