begin-end.rb

@cache ||= begin
  return true if condition1 && condition2
  return true if condition3
  return true if condition4

  long_code1
  long_code2
  long_code3
  result2
end

gistfile1.txt

unless @cache.present?
  return if condition1_2
  return if condition3
  return if condition4
  
  
end

def condition1_2
  if condition1 && condition2
    @cache = true
    true
  else
    false
  end
end