Thanks! That took care of it. I had been tripped up by how the R support in travis-ci throws errors if suggested packages aren't available.
On May 6, 2017 4:18 PM, "Duncan Murdoch" <murdoch.dun...@gmail.com> wrote: > On 06/05/2017 4:02 PM, William Brannon wrote: > >> Hi r-devel, >> >> I have a package called sqlscore ( >> https://cran.r-project.org/package=sqlscore) which depends on dplyr >> functions for SQL generation. The new version of dplyr splits these >> functions into a different package (dbplyr) and provides a recommended way >> to wrap around access to the function in the appropriate package. So when >> it's released in a few days, users with the new dplyr will see errors when >> trying to use sqlscore. So far, so good, though - updating my R code as >> such isn't hard. >> >> But dbplyr won't be released before the new dplyr is, and I can't figure >> out how to list it in Imports, Depends or even Suggests to release an >> update ahead of the new dplyr release. Doing so causes ERRORs in R CMD >> check about an unavailable dependency, and not doing so causes problems >> with "::" references to a package not mentioned in DESCRIPTION. >> >> I'd rather not wait until dbplyr is released to submit a new package, for >> obvious reasons. But releasing an update which depends on it before that >> might also cause breakage. >> >> Any suggestions for the right upgrade path? >> >> > You can list dbplyr in Suggests, and put in conditionals to test for it. > If you don't want to wait for its release you'll need to have code that > works without it as well, so something like this > > if (requireNamespace("dbplyr")) > foo <- dbplyr::foo > else if (packageVersion("dplyr") < "x.y.z") > foo <- dplyr::foo > else > stop("You need to install the dbplyr package, because dplyr::foo has > moved there.") > > will allow you to use foo() anywhere (as long as its interface is the same > in both packages, of course). > > Duncan Murdoch > [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
