module Magellan::Gcs::Proxy::ExpandVariable

Public Instance Methods

dig_variable(tmp, v, variable_ref) click to toggle source
# File lib/magellan/gcs/proxy/expand_variable.rb, line 19
def dig_variable(tmp, v, variable_ref)
  case v
  when String
    if tmp.respond_to?(:[]) && tmp.respond_to?(:include?)
      return tmp[v] if tmp.include?(v)
    end
  when Integer
    case tmp
    when Array
      return tmp[v] if tmp.size > v
    end
  end
  raise InvalidReferenceError, variable_ref
end
dig_variables(variable_ref, data) click to toggle source
# File lib/magellan/gcs/proxy/expand_variable.rb, line 12
def dig_variables(variable_ref, data)
  vars = variable_ref.split('.').map { |i| /\A\d+\z/ =~ i ? i.to_i : i }
  vars.inject(data) do |tmp, v|
    dig_variable(tmp, v, variable_ref)
  end
end
expand_variables(str, data, quote_string: false) click to toggle source
# File lib/magellan/gcs/proxy/expand_variable.rb, line 34
def expand_variables(str, data, quote_string: false)
  data ||= {}
  str.gsub(/\%\{\s*([\w.]+)\s*\}/) do |_m|
    var = Regexp.last_match(1)
    value =
      begin
        dig_variables(var, data)
      rescue InvalidReferenceError
        ''
      end

    case value
    when String then quote_string ? value.to_s : value
    when Array, Hash then flatten(value).join(' ')
    else value.to_s
    end
  end
end
flatten(obj) click to toggle source
# File lib/magellan/gcs/proxy/expand_variable.rb, line 53
def flatten(obj)
  case obj
  when Array then obj.map { |i| flatten(i) }
  when Hash then flatten(obj.values)
  else obj
  end
end