"Drawing Git Graphs with Graphviz and Org-Mode"
Drawing Git Graphs with Graphviz and Org-Mode - correl.phoenixinquis.net
Today I needed something like TortoiseGit's "Revision Graphs": a simple graph that shows tags and branches of a git repository in topological order.
While searching on the net, I found this cool blog post about generating this kind of graphs with elisp and graphviz. Even though the author uses Lisp, the code is very simple and approachable, and it can be easily translated to Python or other languages.