# File lib/capistrano/configuration/alias_task.rb, line 13 def alias_task(new_name, old_name) if !new_name.respond_to?(:to_sym) or !old_name.respond_to?(:to_sym) raise ArgumentError, "expected a valid task name" end original_task = find_task(old_name) or raise NoSuchTaskError, "the task `#{old_name}' does not exist" task = original_task.dup # Dup. task to avoid modify original task task.name = new_name define_task(task) end