Re: [Statcvs-users] question on generation

[Richard C. <ri...@cy...>]

Hi Aaron,

sounds like an interesting research project. Is there anything to look 
at yet?

Am 22.02.2005 um 04:35 schrieb Aaron Zinman:

> I basically need to know who owns what lines of code at what point in 
> time.  However, I'm not quite sure how you get the statistics that you 
> do only from the "cvs log" command.  Your generated reports indicate 
> that you can know that "cyganiak" has 4323 lines of code, but how are 
> you getting this information?  That is, cvs logs give you
>
> revision 1.2
> date: 2003/03/25 01:20:13;  author: lukasz;  state: Exp;  lines: +20 -2
> Minor code review tasks.
> Added some javadocs
> Fixed some unhandled Exceptions
>
> So you know that lukasz added 20 lines of code, but you don't know 
> who's -2 he got rid of, so how could you properly deduct them from the 
> right other people?

We don't deduct them. You're referring to the chart and table on the 
Authors page of the StatCVS report. The story we want to tell there is: 
How much did each author, over time, contribute to the project? We 
don't want to show who has written how much of the code that is 
up-to-date *right now*, but how much they've written *over time*. So 
it's reasonable to count 20 lines for lukasz, and the person who wrote 
the original 2 lines keeps them. The contribution doesn't become 
worthless just because it was later replaced by something else.

This probably doesn't help you much.

But here's something that you could use: the "cvs annotate" command. We 
don't use the data from that, but you probably want to.

In a checked-out working copy, run: "cvs annotate SomeFile.java". This 
gives you a breakdown of who owns which line of that file *right now*. 
"cvs annotate -r 1.5 SomeFile.java" shows you who owned which line at 
the time of revision 1.5 of the file. From "cvs log", you can get the 
date of revision 1.5. I guess this is exactly the data you need.

Richard