Returns a tidy table of files currently held in the package cache, with
size and age. Useful for understanding what is stored locally and deciding
when to clear stale files via hmrc_clear_cache().
Value
A data frame with columns file, extension, size_bytes,
size_mb, modified (POSIXct), age_days, path. The data frame is
empty (zero rows) if the cache directory does not exist or is empty.
The cache directory itself is attached as the attribute "cache_dir".
See also
Other infrastructure:
hmrc_clear_cache(),
hmrc_list_tax_heads(),
hmrc_meta(),
hmrc_publications(),
hmrc_search()