Cancel a target mid-build [Stable]

Source: R/drake_plan_helpers.R

Cancel a target mid-build. Upon cancellation, drake halts the current target and moves to the next one. The target's previous value and metadata, if they exist, remain in the cache.

cancel(allow_missing = TRUE)

Arguments

allow_missing

Logical. If FALSE, drake will not cancel the target if it is missing from the cache (or if you removed the key with clean()).

Value

Nothing.

See also

cancel_if

Examples

if (FALSE) {
isolate_example("cancel()", {
f <- function(x) {
  cancel()
  Sys.sleep(2) # Does not run.
}
g <- function(x) f(x)
plan <- drake_plan(y = g(1))
make(plan)
# Does not exist.
# readd(y)
})
}