Generate CRAN-like Repository Index
write_PACKAGES_index(path = ".", output = "index.html",
pattern = NULL, title = "Packages", robots.file = TRUE)path to the repository's root directory
output filename -- relative to the
repository root path.
regular expression used to filter the names of the packages that will appear in the index.
title of the index page
logical that indicates if a file
robots.txt that hides the repository from search
engine robots should be created.