[R-pkg-devel] Avoid reprocessing Rmd vignette
spencer.graves at effectivedefense.org
Tue Mar 20 15:27:04 CET 2018
On 2018-03-20 06:17, Johannes Ranke wrote:
>> The idea exposed by Dirk is the same: requireNamespace will find the
>> package on CRAN and will set eval=TRUE. What you want though is to
>> avoid running a chunk on CRAN, even if the package is available. So
>> you need to set eval=FALSE *unconditionally*.
> Or conditional on the package version (as Dirk proposed regarding tests) or on
> an environment variable NOT_CRAN which you can set to true on the machine
> where you do want to run the code (as used by devtools).
The function "fda::CRAN" allows package developers to run tests
themselves that should not run on CRAN or with "R CMD check –as-cran".
Several of my packages have code in "\examples" that include something
like the following:
#Code I do not want run if a certain parameter is in Sys.getenv()
I have not tried this, but I think you could set a parameter,
e.g., '-no-vignette' via either Sys.setenv('-no-vignette'=1) or "R CMD
check -no-vignette", then bracket code snippets in the vignette with
This will NOT turn off compiling the vignette, but it will allow
you to suppress running code snippets in the vignette that take time.
Hope this helps.
p.s. I just tested "Sys.setenv('-no-vignette'=1); tst2 <-
CRAN('-no-vignette', '-no-vignette')" and got TRUE, when CRAN() returned
FALSE. When I tried print(tst2) I got:
Error in formatDL(x, ...) : unused argument (digits = 7)
I do not understand this error message, but it does not seem to
be a problem I have to fix right now, so I won't.
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