Gitignore man directory of an R package?

As a convenience to users who use devtools::install_github().

If man/*.Rd is not in the repo, they will get a note like No man pages found in package... upon install and later, help(...) or ?... or ??... will fail for your users with No documentation or No results found.

If you want the man directory to be present but not the files generated in it, place a .gitignore file in the man directory. This will force git to generate the directory, but still ignore the files generated.