Method: Puppet::Parser::Scope#setvar

Defined in:
lib/vendor/puppet/parser/scope.rb

#setvar(name, value, options = {}) ⇒ Object

Set a variable in the current scope. This will override settings in scopes above, but will not allow variables in the current scope to be reassigned.



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# File 'lib/vendor/puppet/parser/scope.rb', line 351

def setvar(name,value, options = {})
  table = options[:ephemeral] ? @ephemeral.last : @symtable
  if table.include?(name)
    unless options[:append]
      error = Puppet::ParseError.new("Cannot reassign variable #{name}")
    else
      error = Puppet::ParseError.new("Cannot append, variable #{name} is defined in this scope")
    end
    error.file = options[:file] if options[:file]
    error.line = options[:line] if options[:line]
    raise error
  end

  unless options[:append]
    table[name] = value
  else # append case
    # lookup the value in the scope if it exists and insert the var
    table[name] = undef_as('',lookupvar(name))
    # concatenate if string, append if array, nothing for other types
    case value
    when Array
      table[name] += value
    when Hash
      raise ArgumentError, "Trying to append to a hash with something which is not a hash is unsupported" unless value.is_a?(Hash)
      table[name].merge!(value)
    else
      table[name] << value
    end
  end
end