def invoke_with_call_chain(task_args, invocation_chain) # :nodoc:
      new_chain = InvocationChain.append(self, invocation_chain)
      @lock.synchronize do
        if application.options.trace
          puts "** Invoke #{name} #{format_trace_flags}"
        end
        return if @already_invoked
        @already_invoked = true
        invoke_prerequisites(task_args, new_chain)
        execute(task_args) if needed?
      end
    end
def invoke_with_call_chain(task_args, invocation_chain) # :nodoc:
      new_chain = InvocationChain.append(self, invocation_chain)
      @lock.synchronize do
        if application.options.trace
          puts "** Invoke #{name} #{format_trace_flags}"
        end
        return if @already_invoked
        @already_invoked = true
        invoke_prerequisites(task_args, new_chain)
        execute(task_args) if needed?
      end
    end
Same as invoke, but explicitly pass a call chain to detect
 circular dependencies.