R devel - Dec 2012 - Generate .Rout.save files for vignettes

I am looking for a way to generate .Rout.save files for vignettes.
The manual "Writing R Extensions" states here [1] in item number 20:

"If there is a target output file .Rout.save in the vignette source 
directory, the output from running the code in that vignette is compared 
with the target output file."

Yet, there is no pointer on how to get the correct .Rout.save files for 
vignettes. (For the files in directory "test" there is a footnote on
how
to get the .Rout.save files. [2])

As a temporary solution, we currently use a script that calls 
tools:::.run_one_vignette() on each vignette and dumps the output:

echo 'tools:::.run_one_vignette("vignette.Rnw", docDir =
".");' | R
--vanilla > vignette.Rout.save

However, this doesn't result in the same code as produced by R CMD 
check. E.g., we get the R startup header and furthermore get the output 
in German where localization is available (thus having differences when 
running R CMD check).

Does anyone have any hints on how to automatically get the correct 
results (i.e., without the header)? And is it possible to include these 
hints in the "Writing R extensions" manual for other users?

Any help is highly appreciated.
Best,
    Benjamin

--------------------
[1] http://cran.r-project.org/doc/manuals/R-exts.html#Checking-packages
[2] http://cran.r-project.org/doc/manuals/R-exts.html#fn-15

On 12-12-10 11:45 AM, Benjamin Hofner wrote:
> I am looking for a way to generate .Rout.save files for vignettes.
> The manual "Writing R Extensions" states here [1] in item number
20:
>
> "If there is a target output file .Rout.save in the vignette source
> directory, the output from running the code in that vignette is compared
> with the target output file."
>
> Yet, there is no pointer on how to get the correct .Rout.save files for
> vignettes. (For the files in directory "test" there is a footnote
on how
> to get the .Rout.save files. [2])
I agree, this should be documented.  But it is rather easy:

Just create an empty file and call it vignette.Rout.save.  Run the 
checks, and you'll get lots of errors because it won't compare to the 
real output.

When you get a compare failure, the file vignette.Rnw.log will be left 
in the *.Rcheck directory.  You can just copy that into the 
vignette.Rout.save file.

Duncan Murdoch
>
> As a temporary solution, we currently use a script that calls
> tools:::.run_one_vignette() on each vignette and dumps the output:
>
> echo 'tools:::.run_one_vignette("vignette.Rnw", docDir =
".");' | R
> --vanilla > vignette.Rout.save
>
> However, this doesn't result in the same code as produced by R CMD
> check. E.g., we get the R startup header and furthermore get the output
> in German where localization is available (thus having differences when
> running R CMD check).
>
> Does anyone have any hints on how to automatically get the correct
> results (i.e., without the header)? And is it possible to include these
> hints in the "Writing R extensions" manual for other users?
>
> Any help is highly appreciated.
> Best,
>      Benjamin
>
> --------------------
> [1] http://cran.r-project.org/doc/manuals/R-exts.html#Checking-packages
> [2] http://cran.r-project.org/doc/manuals/R-exts.html#fn-15
>
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