drake no longer stores the config object,
the plan, etc. in the cache during make(). This change
improves speed.
read_drake_config(
  path = getwd(),
  search = TRUE,
  cache = NULL,
  verbose = 1L,
  jobs = 1,
  envir = parent.frame()
)Path to a drake cache
(usually a hidden .drake/ folder) or NULL.
Deprecated.
drake cache. See new_cache().
If supplied, path is ignored.
Deprecated on 2019-09-11.
Number of jobs/workers for parallel processing.
2019-01-06