Thanks. By the way, just for clarity, I do know that the option I wanted was --strip-comments, with two hyphens. When I posted this, apparently '--' got changed to a dash by auto-incorrect.
RL -----Original Message----- From: Duncan Murdoch <murdoch.dun...@gmail.com> Sent: Thursday, June 27, 2019 9:07 AM To: Lenth, Russell V <russell-le...@uiowa.edu>; r-package-devel@r-project.org Subject: [External] Re: [R-pkg-devel] pandoc version used in winbuilder On 27/06/2019 9:51 a.m., Duncan Murdoch wrote: > On 26/06/2019 2:54 p.m., Lenth, Russell V wrote: >> All, >> >> How does one tell what version of pandoc is being used by winbuilder (and >> probably other related CRAN-submission processes)? > > The function rmarkdown::pandoc_version() will tell you. >> >> I have a package with several HTML vignettes, for which I use a custom >> style. I had decided to add the pandoc option '-strip-comments' to my script >> (my vignettes have quite a few HTML comments that are used for indexing and >> are not needed after the vignettes are built). When I built the package and >> submitted it for checking to winbuilder (for the development version of R), >> the result was that each vignette failed to rebuild, with a message that >> pandoc.exe has no option -strip-comments. However, that option has been >> available since pandoc version 2.0; and its latest version is 2.7.3. >> >> This is not a big deal for my package, so I just removed that option and >> then all was OK. But still, why are we having to rely on a relatively >> ancient version of pandoc? > > It takes work to install a new version, and presumably nobody has done > that work. Pandoc is not easy to build, so some CRAN machines don't > have it at all. > > Your DESCRIPTION file should list it in SystemRequirements with the > required version number. I'd suggest using a reasonably low number if > you want CRAN to accept and build your package. By the way, I just looked through a fairly recent copy of CRAN, and only 3 packages asked for pandoc >= 2.0. So that's a reason it's been a low priority to install it. Duncan Murdoch ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
