I made a small Python script for checking how many Git commits have been done during the weekend days. It is a simple idea. Only mark the days when commits have been done. Don’t think too much about number of commits or how many changes have been done. It is up to us to interpret the graph, but you apply it on a project which has been going on for a very long time you can kind of read some things out of it.
Look at the picture above. Graph in the top left corner is from a commercial project. Clearly, nobody cares about it over the weekend. Percentage of activity is around 20%, which means that work has been spread proportionally.
Graph in the bottom right corner is from Django repository. More or less this is how all big Open Source projects look like with lot of participants. Work evenly spread over the entire week.
You can find out more here:
https://github.com/aerkalov/sabbath