[R-pkg-devel] Testing on old R versions
I haven't tried it (yet), but perhaps using github actions CI you could specify an older version of R: https://github.com/r-lib/actions/tree/master/setup-r Sent from my Samsung Galaxy S10+. Get Outlook for Android<https://aka.ms/ghei36>
From: R-package-devel <r-package-devel-bounces at r-project.org> on behalf of Duncan Murdoch <murdoch.duncan at gmail.com>
Sent: Friday, January 29, 2021 1:35:40 AM
To: r-package-devel at r-project.org <r-package-devel at r-project.org>
Subject: [R-pkg-devel] Testing on old R versions
Sent: Friday, January 29, 2021 1:35:40 AM
To: r-package-devel at r-project.org <r-package-devel at r-project.org>
Subject: [R-pkg-devel] Testing on old R versions
I just received a bug report about the rgl package: it claims to depend on R >= 3.2.0, but actually uses the hcl.colors() function that was introduced in R 3.6.0, so fails to install. (This dependence was introduced while I had the dependence stated as R >= 4.0.0 for a while, until I tried to help people stuck on old releases; I fixed some of the 4.0.0 needs, but missed this one.) So of course what I should have done was to run the checks on R 3.2.0 (and maybe intermediate versions) to confirm it works, but I didn't try that before releasing to CRAN. I've just finished installing a copy of R 3.2.0 and testing my fix, so I think things are fine now. This took some work; some of the packages used by the current rgl didn't exist when R 3.2.0 was current, so no binaries exist for them; installing the tools for binary builds takes time, etc. So finally, my question: what is the recommended way to handle tests of new packages on old R versions? Do docker or other images exist that are already set up and ready to go? Duncan Murdoch ______________________________________________ R-package-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel