[R-pkg-devel] R-devel warning: You used a knitr feature that depends on the digest package.
maechler at stat.math.ethz.ch
Wed Feb 7 09:27:46 CET 2018
>>>>> Gábor Csárdi <csardi.gabor at gmail.com>
>>>>> on Tue, 6 Feb 2018 19:26:55 -0800 writes:
> codetools is a recommended package, and it is part of most R
> installations. builder.r-hub.io is a bit more strict, it does have the
> recommended packages, on some builders at least, so codetools might be
hmm... but a package maintainer has to also add recommended
packages to 'Suggests' if they are needed in the vignette (e.g.)
> On Tue, Feb 6, 2018 at 7:22 PM, David Scott <d.scott at auckland.ac.nz> wrote:
>> On a package I help maintain, we had a note from Kurt about a warning when
>> building vignettes on R-devel.
>> It was
>> Warning: You used a knitr feature that depends on the digest package.
>> Checking the location of the error and googling it, I am pretty certain it
>> comes from cache = true for a chunk in the vignette.
>> Adding digest as suggested package, I got no warning from winbuilder using
>> R-devel, but submitting to https://builder.r-hub.io gave me a new warning
>> from codetools at the same location as previously. Like digest, codetools is
>> suggested by knitr.
well, but "suggests of suggests are not suggests":
If your vignette really needs codetools you (your package
DESCRIPTION) need to suggest it yourself.
>> Any advice? One thought is just take off cache = true.
well, yes ;-) ..
Seriously, of course rather fix the problem, which must be
fixable relatively easily.
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