I frequently add a helper like this one (from the r-pkgs book) to my packages and scripts to optionally respond to our error out on missing Suggests: dependencies:
#' Error out on unavailable optional pkgs
#' @inheritParams requireNamespace
#' @noRd
requireNamespace2 <- function(x) {
if (!requireNamespace(x, quietly = TRUE)) {
stop(
paste(
x,
"needed for this function to work.",
"Please install it."
),
call. = FALSE
)
}
}
It's small enough I guess, but I'd love to be able to just checkmate::assert_pkg(pkg = "foo") in my code without always adding the same helper function.
Any chance you might be interested in such an addition?
I know it sits a bit weirdly with the rest of the pkg, because that's mostly about R objects, not side effects (though, arguably checkmate::assert_directory() is pretty similar).
Don't think it would add dependencies, and I'd just love using the amazing checkmate signature for another thing.
Saves mental load.
I frequently add a helper like this one (from the r-pkgs book) to my packages and scripts to optionally respond to our error out on missing
Suggests:
dependencies:It's small enough I guess, but I'd love to be able to just
checkmate::assert_pkg(pkg = "foo")
in my code without always adding the same helper function.Any chance you might be interested in such an addition?
I know it sits a bit weirdly with the rest of the pkg, because that's mostly about R objects, not side effects (though, arguably
checkmate::assert_directory()
is pretty similar).Don't think it would add dependencies, and I'd just love using the amazing checkmate signature for another thing. Saves mental load.
I'd be happy to add a PR for this.