Should `create_from_github()` support subdirs?

[hadley]

e.g. create_from_github("https://github.com/apache/arrow/tree/master/r")

[jennybc]

How would that actually work? I.e. what sort of Git concepts / operations are we talking about.

[hadley]

I think maybe it clones in the same way, you just use_rstudio() in a subdirectory?

[hadley]

Another approach would be to scan all subdirectories for an .Rproj file before creating a new one in the root.