[R-pkg-devel] [Rd] static html vignette

[Jan Gorecki]

I may add two cents on that as we recently made this change in data.table.
Using markdown package instead of rmarkdown as a vignette engine reduced
burden caused by extra dependencies tremendously. Moreover it made package
to not even need c++ compiler, as knitr and markdown both (and their
recursive deps) are pure C with no C++.
Gains were huge. Deps installation time from 12min to 30sec. CI pipeline
compute minutes saving around 100min on a single workflow.

But there is even a better news (so be sure to upvote), that knitr may not
be required to render Rmd at all in near future. For details see
https://github.com/rstudio/markdown/issues/109


On Thu, Jan 4, 2024, 22:27 Adrian Dușa <dusa.adrian using gmail.com> wrote:

> On Thu, Jan 4, 2024 at 10:44 PM Uwe Ligges <
> ligges using statistik.tu-dortmund.de>
> wrote:
>
> > On 04.01.2024 21:23, Duncan Murdoch wrote:[...]
> > > Users aren't forced to install "Suggests" packages.  That's a choice
> > > they make.  The default for `install.packages()` is `dependencies =
> NA`,
> > > which says to install hard dependencies (Imports, Depends, LinkingTo).
> > > Users have to choose a non-default setting to include Suggests.
> >
> > Also note that the maintainer builds the vignette whe calling
> > R CMD build
> > CRAN checks whether the vignette can be build.
> > If a user installs a package, the already produced vignette (on the
> > maintainers machine by R CMD build) is instaled. There is no need for
> > the user to install any extra package for being able to look at the
> > vignettes.
> >
>
> I see... then I must have tested with dependencies = TRUE thinking this
> refers to hard dependencies (one more reason to read the documentation
> properly).
>
> Thank you,
> Adrian
>
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