Utility Functions

NOTES

This file is not included in the source package because of the .nopurl suffix in its filename.
The chunks below have to be manually executed in order to regenerate the package data.
Although the datasets below are saved as "internal data" in R/sysdata.rda, they can still be exported and documented (by documenting the dataset's quoted name in the main .Rmd source file -- which only works when the dataset is also @exported), something not explicitly mentioned in the book R Packages. To do so, you first need to manually add the export() directive in the NAMESPACE file since roxygen2 won't add it automatically.

Setup

library(rlang,
        include.only = "%|%")
library(magrittr,
        include.only = c("%>%", "%<>%", "%T>%", "%!>%", "%$%"))

Define data

`mime_types_exts`

mime_types_exts <- c(mime::mimemap,
                     setdiff(mime:::mimeextra, mime::mimemap),
                     # MIME types not yet included in pkg mime
                     webp = "image/webp")

Write data

Save all the small data objects as a single internal file R/sysdata.rda. Note that when documenting them, they must be explicitly @exported to be available to package users.

usethis::use_data(mime_types_exts,
                  internal = TRUE,
                  overwrite = TRUE,
                  compress = "xz",
                  version = 3L)