Resolve the datasusr cache directory

Returns the active cache directory path. Checks, in order: the cache_dir argument, the DATASUSR_CACHE_DIR environment variable, the datasusr.cache_dir option, and finally a session-scoped subdirectory of tempdir(). To opt in to a persistent cache across sessions, set the DATASUSR_CACHE_DIR environment variable, the datasusr.cache_dir option, or pass cache_dir explicitly (for example, tools::R_user_dir("datasusr", "cache")).

Usage

datasus_cache_dir(cache_dir = NULL)

Arguments

cache_dir

Optional cache directory supplied by the caller.

Value

A single path string.

Examples

datasus_cache_dir()
#> [1] "/var/folders/j9/7g_srh2x0d71c5q0pbj5mxh40000gn/T//Rtmp7l1NmS/datasusr-cache"