drake_plan_source {drake}

Show the code required to produce a given drake plan

Description

You supply a plan, and drake_plan_source() supplies code to generate that plan. If you have the prettycode package, installed, you also get nice syntax highlighting in the console when you print it.

Usage

drake_plan_source(plan)

Arguments

plan

A workflow plan data frame (see drake_plan())

Value

a character vector of lines of text. This text is a call to drake_plan() that produces the plan you provide.

See Also

drake_plan()

Examples

plan <- drake::drake_plan(
  small_data = download_data("https://some_website.com"),
  large_data_raw = target(
    command = download_data("https://lots_of_data.com"),
    trigger = trigger(
      change = time_last_modified("https://lots_of_data.com"),
      command = FALSE,
      depend = FALSE
    ),
    timeout = 1e3
  )
)
print(plan)
if (requireNamespace("styler", quietly = TRUE)) {
  source <- drake_plan_source(plan)
  print(source) # Install the prettycode package for syntax highlighting.
  file <- tempfile() # Path to an R script to contain the drake_plan() call.
  writeLines(source, file) # Save the code to an R script.
}