cached_planned() and cached_unplanned() not working with non-standard cache locations

[matthiasgomolka]

Prework

• Read and abide by drake's code of conduct.
• Search for duplicates among the existing issues, both open and closed.
• Advanced users: verify that the bug still persists in the current development version (i.e. remotes::install_github("ropensci/drake")) and mention the SHA-1 hash of the Git commit you install. Hash: 53214ac9a34dbc7102a1dd87fbc79ad896de9131.

Description

If the drake cache is not in the standard location, the functions cached_planned() and cached_unplanned() do not work.

Reproducible example

library(drake)

# create cache
cache_path <- file.path(tempdir(), ".drake")
my_cache <- new_cache(cache_path)

# create and make plan
plan <- drake_plan(iris = iris)
make(plan, cache = my_cache)
#> ▶ target iris

# change and remake plan
plan <- drake_plan(mtcars = mtcars)
make(plan, cache = my_cache)
#> ▶ target mtcars

# show error
cached_unplanned(plan, cache = my_cache)
Error: $ operator is invalid for atomic vectors

^{Created on 2020-06-04 by the reprex package (v0.3.0)}

Expected result

This should work, independently from the cache location.

Session info

Session info

devtools::session_info()
#> ─ Session info ───────────────────────────────────────────────────────────────
#>  setting  value                       
#>  version  R version 4.0.0 (2020-04-24)
#>  os       elementary OS 5.1.5 Hera    
#>  system   x86_64, linux-gnu           
#>  ui       X11                         
#>  language EN                          
#>  collate  de_DE.UTF-8                 
#>  ctype    de_DE.UTF-8                 
#>  tz       Europe/Berlin               
#>  date     2020-06-04                  
#> 
#> ─ Packages ───────────────────────────────────────────────────────────────────
#>  package     * version     date       lib source                            
#>  assertthat    0.2.1       2019-03-21 [1] CRAN (R 4.0.0)                    
#>  backports     1.1.7       2020-05-13 [1] CRAN (R 4.0.0)                    
#>  base64url     1.4         2018-05-14 [1] CRAN (R 4.0.0)                    
#>  callr         3.4.3       2020-03-28 [1] CRAN (R 4.0.0)                    
#>  cli           2.0.2       2020-02-28 [1] CRAN (R 4.0.0)                    
#>  colorout      1.2-2       2020-04-28 [1] Github (jalvesaq/colorout@726d681)
#>  crayon        1.3.4       2017-09-16 [1] CRAN (R 4.0.0)                    
#>  desc          1.2.0       2018-05-01 [1] CRAN (R 4.0.0)                    
#>  devtools      2.3.0       2020-04-10 [1] CRAN (R 4.0.0)                    
#>  digest        0.6.25      2020-02-23 [1] CRAN (R 4.0.0)                    
#>  drake       * 7.12.2.9000 2020-06-04 [1] Github (ropensci/drake@53214ac)   
#>  ellipsis      0.3.1       2020-05-15 [1] CRAN (R 4.0.0)                    
#>  evaluate      0.14        2019-05-28 [1] CRAN (R 4.0.0)                    
#>  fansi         0.4.1       2020-01-08 [1] CRAN (R 4.0.0)                    
#>  filelock      1.0.2       2018-10-05 [1] CRAN (R 4.0.0)                    
#>  fs            1.4.1       2020-04-04 [1] CRAN (R 4.0.0)                    
#>  glue          1.4.1       2020-05-13 [1] CRAN (R 4.0.0)                    
#>  highr         0.8         2019-03-20 [1] CRAN (R 4.0.0)                    
#>  hms           0.5.3       2020-01-08 [1] CRAN (R 4.0.0)                    
#>  htmltools     0.4.0       2019-10-04 [1] CRAN (R 4.0.0)                    
#>  igraph        1.2.5       2020-03-19 [1] CRAN (R 4.0.0)                    
#>  knitr         1.28        2020-02-06 [1] CRAN (R 4.0.0)                    
#>  lifecycle     0.2.0       2020-03-06 [1] CRAN (R 4.0.0)                    
#>  magrittr      1.5         2014-11-22 [1] CRAN (R 4.0.0)                    
#>  memoise       1.1.0       2017-04-21 [1] CRAN (R 4.0.0)                    
#>  pillar        1.4.4       2020-05-05 [1] CRAN (R 4.0.0)                    
#>  pkgbuild      1.0.8       2020-05-07 [1] CRAN (R 4.0.0)                    
#>  pkgconfig     2.0.3       2019-09-22 [1] CRAN (R 4.0.0)                    
#>  pkgload       1.1.0       2020-05-29 [1] CRAN (R 4.0.0)                    
#>  prettyunits   1.1.1       2020-01-24 [1] CRAN (R 4.0.0)                    
#>  processx      3.4.2       2020-02-09 [1] CRAN (R 4.0.0)                    
#>  progress      1.2.2       2019-05-16 [1] CRAN (R 4.0.0)                    
#>  ps            1.3.3       2020-05-08 [1] CRAN (R 4.0.0)                    
#>  R6            2.4.1       2019-11-12 [1] CRAN (R 4.0.0)                    
#>  Rcpp          1.0.4.6     2020-04-09 [1] CRAN (R 4.0.0)                    
#>  remotes       2.1.1       2020-02-15 [1] CRAN (R 4.0.0)                    
#>  rlang         0.4.6       2020-05-02 [1] CRAN (R 4.0.0)                    
#>  rmarkdown     2.2         2020-05-31 [1] CRAN (R 4.0.0)                    
#>  rprojroot     1.3-2       2018-01-03 [1] CRAN (R 4.0.0)                    
#>  sessioninfo   1.1.1       2018-11-05 [1] CRAN (R 4.0.0)                    
#>  storr         1.2.1       2018-10-18 [1] CRAN (R 4.0.0)                    
#>  stringi       1.4.6       2020-02-17 [1] CRAN (R 4.0.0)                    
#>  stringr       1.4.0       2019-02-10 [1] CRAN (R 4.0.0)                    
#>  testthat      2.3.2       2020-03-02 [1] CRAN (R 4.0.0)                    
#>  tibble        3.0.1       2020-04-20 [1] CRAN (R 4.0.0)                    
#>  txtq          0.2.0       2019-10-15 [1] CRAN (R 4.0.0)                    
#>  usethis       1.6.1       2020-04-29 [1] CRAN (R 4.0.0)                    
#>  vctrs         0.3.0       2020-05-11 [1] CRAN (R 4.0.0)                    
#>  withr         2.2.0       2020-04-20 [1] CRAN (R 4.0.0)                    
#>  xfun          0.14        2020-05-20 [1] CRAN (R 4.0.0)                    
#>  yaml          2.2.1       2020-02-01 [1] CRAN (R 4.0.0)                    
#> 
#> [1] /home/gomolka/R/x86_64-pc-linux-gnu-library/4.0
#> [2] /usr/local/lib/R/site-library
#> [3] /usr/lib/R/site-library
#> [4] /usr/lib/R/library

Details

This error can be solved by adding cache = cache as done here in lines 694 and 743. I'm working on a PR to adress this issue.

[wlandau]

Fixed in 101e113.