Error running simple pipeline with tar_files and format = "auto"

[paulseamer]

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Description

Hey Will

Thanks for all your work on targets. I'm a recent convert but already finding it extremely useful!

using targets_1.10.1 and tarchetypes_0.12.0

It's possible I've misunderstood something but even a super simple pipeline fails on its first run when I use tar_files to branch over files and set format = "auto". If I run tar_make again immediately after, the branch that failed completes and the pipeline works. And if I set format = "qs" inside the data target the pipeline completes first time.

readr::write_csv(tibble::tibble(x1 = 1, x2 = 1), "a.csv")
readr::write_csv(tibble::tibble(x1 = 1, x2 = 1), "b.csv")

targets::tar_script({
  targets::tar_option_set(format = "auto")
  library("targets")
  library("tarchetypes")
  library("readr")
  library("tibble")
  list(
    tarchetypes::tar_files(paths, c("a.csv", "b.csv")),
    targets::tar_target(
      data,
      readr::read_csv(paths, col_types = "dd"),
      pattern = map(paths)
    )
  )
})

# first run fails
targets::tar_make()
targets::tar_meta(fields = any_of("error"), complete_only = TRUE)$error
# [1] "_store_ no applicable method for store_write_path applied to an object of class ctar_auto, tar_store"
# if you run again immediately after pipeline completes successfully
targets::tar_make()

[wlandau]

Thanks for letting me know, and for the reprex. Turns out this is a bug introduced in version 1.9.0. Fixed in 4e70579

[paulseamer]

No problem, glad I could help. Thanks for sorting so quickly.