Run a single target's command in debug mode.'

Not valid for dynamic branching. drake_debug() loads a target's dependencies and then runs its command in debug mode (see browser(), debug(), and debugonce()). This function does not store the target's value in the cache (see https://github.com/ropensci/drake/issues/587).

Usage

drake_debug(
  target = NULL,
  ...,
  character_only = FALSE,
  replace = FALSE,
  verbose = TRUE,
  config = NULL
)

Arguments

target

Name of the target.

...

Arguments to make(), such as the plan and environment.

character_only

Logical, whether name should be treated as a character or a symbol (just like character.only in library()).

replace

Logical. If FALSE, items already in your environment will not be replaced.

verbose

Logical, whether to print out the target you are debugging.

config

Deprecated 2019-12-22.

Value

The value of the target right after it is built.

See also

drake_build()

Examples

if (FALSE) { # \dontrun{
isolate_example("Quarantine side effects.", {
if (suppressWarnings(require("knitr"))) {
# This example is not really a user-side demonstration.
# It just walks through a dive into the internals.
# Populate your workspace and write 'report.Rmd'.
load_mtcars_example() # Get the code with drake_example("mtcars").
# out <- drake_debug(small, my_plan)
# `small` was invisibly returned.
# head(out)
}
})
} # }