> I recently thought about this. I see several issues. > > * How can we determine if it is "old"? Relative to the time when the > package was uploaded to a repository? > > * Some developers might actually want a different date for a variety of > reasons ... > > * What we currently say in R-exts is > > The optional `Date' field gives the release date of the current > version of the package. It is strongly recommended to use the > yyyy-mm-dd format conforming to the ISO standard. > > Many packages do not comply with the latter (but I have some code to > sanitize most of these), and "release date" may be a moving target. > > The best that I could think of is to teach R CMD build to *add* a Date > field if there was none.
That sounds like a good solution to me. Otherwise, maybe just a message from R CMD check? i.e. just like failing the codetools checks, it might be perfectly ok, but you should be doing it consciously, not by mistake. Hadley -- http://had.co.nz/ ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel