\documentclass[a4paper]{article} %  --- LaTeX preamble ==============
%  --- title page ===================================================
   \title{Report: \rule{30mm}{.1mm}}                        
   \author{File: \jobname.rev\\in: JOBPATH}                 
%   \date{}
%  --- sizes of non text elements ===================================
\renewcommand{\textchunkcommands}{\normalsize}
\renewcommand{\codechunkcommands}{\small}
\renewcommand{\Routputcommands}{\footnotesize}
%  ==================================================================
%  --- packages  \usepackage{graphicx,mathpazo,courier,alltt,amssymb}
\usepackage{graphicx}
%  --- fonts 
% \usepackage[scaled=.95]{helvet}
\usepackage[T1]{fontenc}
%  --- commands to control the layout of text and code chunks 
\parskip1ex \parindent0mm
%  --- end of preamble ==============================================
\begin{document}  \maketitle
% object index -- remove next line to disable object index
@index.of.objects
% list of code chunks -- remove next line to disable list of chunks
@list.of.chunks
%  --- begin of document ============================================

