Bruce, As Ben and Thierry already mentioned (thanks!!) drat it pretty much designed to support that out of the box (but also supports repos elsewhere; however there are reasons such as gh-pages that make GitHub uniquely suited). I have some moderately strongly-held beliefs about how install_github is IMHO unsuitable as a _release-mechanism_ which I think of as, say, tarballs taken at author-chosen points in time rather then semi-randomly selected commits you may end with. And drat supports such releases. We do have a few examples on CRAN for mixing CRAN with external releases, and some are in fact managed by drat. We also rely on drat extensively at work for a local repo.
When I first wrote drat about a year ago, not everybody "got it" -- so there are a bunch of vignettes, as well as my talk at useR! 2015 about. Please peruse, and should you have questions do come back here (or file issues at it GitHub repo). Chaers, Dirk -- http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel