Wrapper function for checking an install — cmd_install

This function can be lightly wrapped by package builders to build a user-friendly install checking function.

cmd_install_check(path_search, path = NULL)

Arguments

path_search	`function` output of `cmd_path_search()`
path	user-override path to check (identical to `path` argument of `cmd_path_search()` output)

pretty printed message indicating whether files exits or not. Green check = Yes, red X = No.

if (FALSE) {
path_search <- cmd_path_search(default = "/bin", utils = "ls")
cmd_install_check(path_search)
}