OS-independent way to select directory interactively in R

Question

I would like users to be able to select a directory interactively in R. The solution needs to work on different platforms (at least on Linux, Windows and Mac machines that have

Answer 1

for some use cases a little trick might be to use dirname() around file.choose()

dir <- dirname(file.choose())

this will return the directory. It does however require at least one file to be present in the directory