There is much to like about sourcehut, the only thing that keeps me from using it at the moment is that patches are handled through email instead of having a web interface for pull requests.

I converted the remaining 5-6 mercurial repos I had on bitbucket to git yesterday.

If you allow moving between folders as well as renaming you may get into some interesting issues.

One problem is that you are not guaranteed what order you get files and folders in, so one run could have a move fail because the target file exists, while another can succeed because the file with the target name was processed earlier and moved.

For instance if you have x/x/x/ containing x/foo and x/x/foo, and you move foo to x/foo recursively, then if you process x/foo before recursing into x/x/, it will fail, but if you recurse into x/x/ and move x/x/foo first, then moving x/foo will later succeed.

Even worse, C++ does not guarantee if any files or folders created after you create the directory iterator show up in it, so you could potentially have a rename bomb if you rename for instance f(o+)x to f$1$1x.