Return 0 version for non-existing dependency package

[PoGibas]

If any of the dependency packages is removed (tidyverse_deps(TRUE) or tidyverse_update(TRUE)) would fail. This happens because utils::packageVersion returns error (NA result from packageDescription).

To fix this issue we can check if dependency is within installed.packages() and if not return 0 so that comparison between package version with CRAN would work.

Example:

utils::remove.packages("selectr")
tidyverse::tidyverse_deps() # works
tidyverse::tidyverse_deps(TRUE) # returns: Error in FUN(X[[i]], ...) : package ‘selectr’ not found

PS. This would not happen if any of tidyverse packages is missing as the library(tidyverse) wouldn't work.

[MikeJohnPage]

I have come across the same problem:

tidyverse::tidyverse_deps(recursive = TRUE)
#> Error in FUN(X[[i]], ...): package 'ellipsis' not found

[hadley]

Thanks @PoGibas - I ended up taking a slightly different route.