What kinds of changes were made that needed number of files to grow by a factor of 22? Or 27 if you just count go files?

The number of files didn't grow by a factor of 22. The screenshot shows how many files were modified in that time frame. In the case of the screenshot, it showed what happened in the last 3 months. This is what was modified in the last 72 hours.

https://gitsense.com/gogs-gitea/summaries+trees-72hours.png

This is the entire history.

https://gitsense.com/gogs-gitea/summaries+trees-history.png

Which shows the number of unique Go files to have ever existed to be 407 in Gogs and 1,753 in Gitea.

I'm guessing some files were moved around. I'll do a bit more digging and update if I find anything interesting.

Edit:

This a diff from the point of divergent to the latest commit for each branch.

Gogs (69 commits with 106 diffs):

https://gitsense.com/gogs-gitea/gogs-diff.png

Gitea (528 commits with 2,062 diffs):

https://gitsense.com/gogs-gitea/gitea-diff.png

The number of files is thus big because Gitea have its dependencies on the vendor/ folder, but Gogs no.

Even this is the case, Gitea has a lot a bug fixes that are still pending on Gogs.

Thanks for the info. So if you look at the vendor diffs, it accounts for 1,479 out of 2,062 diffs.

https://gitsense.com/gogs-gitea/gitea-vendor.png

So the difference isn't as drastic as it appears.