Download a file into a local cache. — cache_download • ggrrr

This function copies a remote file to a local cache once and makes sure it is reused.

Usage

cache_download(
  url,
  ...,
  .nocache = getOption("cache.disable", default = FALSE),
  .cache = getOption("cache.download.dir", default =
    rappdirs::user_cache_dir("ggrrr-download")),
  .stale = getOption("cache.stale", default = Inf),
  .extn = NULL
)

Arguments

url: the url to download
...: passed to `utils::download.file()`
.nocache: if set to TRUE all caching is disabled
.cache: the location of the downloaded files
.stale: how long to leave this file before replacing it.
.extn: the file name extension

Value

the path to the downloaded file