[vmarkovtsev]

The age is April 2016. The source is github.com/src-d/go-git-ing

[minimaxir]

That's the tool, not the source.

Both the data source and tool are very important to include in analysis posts.

[vmarkovtsev]

Data source is GitHub of course - it's in the article title, so I don't quite get you...

We used go-git to fetch every repo out there.