dirty code to get an outline of commit history with gitk [Was: how to make gitk to use specified history information]

Eric Raible wrote:

Liu Yubao <yubao.liu <at> gmail.com> writes:

quoted

I want to obtain an outline of history information, for example:

  a - b - c - d - h -i -j
   \         /
    e- f - g

I simplify the graph like this:

  a - c - d - j
    \    /
      g

"gitk --simplify-by-decoration"?

- Eric

Hi, I get a very dirty implementation, see

http://jff.googlecode.com/svn/trunk/utils/git-branch-graph/

http://jff.googlecode.com/files/gitk-branch-graph--all.png
http://jff.googlecode.com/files/gitk--all.png

These are just to show my expectation, the code is very very very dirty,
I hope git and gitk will add this feature in an elegant and efficent way.