[R-pkg-devel] Problem persists, was Re: Problem compressing vignettes for CRAN

[Michael Dewey]

Following on from Ivan's advice I have now installed qpdf and Ghostview. 
I have checked that they are both on my path by typing their name at the 
command line and verifying they open. I then built the package with the 
--compress-vignettes=both and then checked it with --as-cran I still get 
a complaint that it needs qpdf to check compression.

I notice that in the Writing R Extensions manual in section 1.6.1 it states
"The full path to the qpdf command can be supplied as environment 
variable R_QPDF ..."

Is that a typo for "must be supplied"? If it is where can I find the 
answers to questions about how R accepts Windows paths? Do I need to 
enclose parts of names containing spaces in "" signs? Does it mean the 
path up to, in this case, bin or must I include qpdf.exe after it?

I assume I do not need to do anything special to get it to find Ghostscript?

Michael

On 06/10/2023 16:30, Michael Dewey wrote:
> Dear Ivan
> 
> You must have psychic powers. After some digging I find that the copy 
> installed by TexLive is hidden from other software so I need to install 
> it again. I suppose while I am at it I should try installing qpdf.
> 
> Michael
> 
> On 06/10/2023 15:48, Ivan Krylov wrote:
>> В Fri, 6 Oct 2023 15:36:45 +0100
>> Michael Dewey <lists using dewey.myzen.co.uk> пишет:
>>
>>> But I did use the option --compact-vignettes=both when I built the
>>> tarball.
>>
>>> I do have gs installed but not qpdf. I built the package under
>>> Windows if that is relevant.
>>
>> Is the Ghostscript executable on the %PATH%? It might help to install a
>> newer version. It may also be informative to extract the vignette *.pdf
>> files from the source package tarball and run tools::compactPDF(pdfs,
>> gs_quality='ebook', verbose = TRUE) to see whether it breaks at any
>> point.
>>
> 

-- 
Michael