Presumably when your code tries to open the database, it will fail with
an error. What you should do is catch that error so the vignette
doesn't fail, and print a message to the user explaining why things
didn't work.
If you are using knitr, you can call `knitr::knit_exit()`
and it will quit at that point without appearing to fail.
Duncan Murdoch
On 2025-08-18 9:06 a.m., Hüsing, Johannes via R-package-devel wrote:
Disclaimer: I am building a package for local usage (for now), which will
probably be not submitted to CRAN. If you view this posting as off topic,
please say so or ignore.
In a vignette like this one
https://rdrr.io/cran/DBI/f/vignettes/DBI-advanced.Rmd, code is introduced that,
on invocation, would try to establish a DB connection which probably would not
exist on someone else's than the maintainer's configuration. Would the
maintainer expect the user of the package to tweak her local configuration, or
rather vignette script, to make the code run? The R packages book reads:
Note that since you build vignettes locally, CRAN only receives the html/pdf
and the source code. However, CRAN does not re-build the vignette. It only
checks that the code is runnable (by running it).
What happens when running the script on the user's configuration if the DB
handle does not exist? Or indeed, when CRAN runs the code and no DB is built by
running the code?
This posting
https://forum.posit.co/t/vignettes-that-require-locally-stored-data/2392 seems
to come close to my question.
Best
Johannes
Dr. Johannes H�sing
Epidemiologie
Landeskrebsregister NRW gGmbH
Gesundheitscampus 10
44801 Bochum
T 0234 54509-216
F 0234 54509-499
johannes.hues...@krebsregister.nrw.de<mailto:johannes.hues...@krebsregister.nrw.de>
www.landeskrebsregister.nrw<http://www.landeskrebsregister.nrw>
Das Landeskrebsregister NRW online
FACEBOOK: https://www.facebook.com/LKRNordrheinWestfalen/
INSTAGRAM: https://www.instagram.com/landeskrebsregister_nrw
LINKEDIN: https://www.linkedin.com/company/87452209/admin/feed/posts/
Newsletter LKR NRW - jetzt anmelden unter
https://www.landeskrebsregister.nrw/aktuelles/newsletter
5. Landesqualit�tskonferenz
Mittwoch 08. Oktober 2025 in M�nster
20 Jahre Krebsregistrierung f�r Nordrhein-Westfalen
Eine Erfolgsgeschichte f�r die onkologische Forschung und Versorgung
Anmeldung: https://www.landeskrebsregister.nrw/5-landesqualitaetskonferenz-nrw/
Gesch�ftsf�hrer
Dr. Andres Sch�tzend�bel
Vorsitzender der Gesellschafterversammlung
Staatssekret�r Matthias Heidmeier
Sitz der Gesellschaft
Bochum
Registergericht
Amtsgericht Bochum
HRB 17715
HINWEIS: Diese Nachricht ist nur f�r den Adressaten bestimmt. Es ist nicht
erlaubt, diese Nachricht zu kopieren oder Dritten zug�nglich zu machen. Sollten
Sie irrt�mlich diese Nachricht erhalten haben, bitte ich um Ihre Mitteilung per
E-Mail oder unter der oben angegebenen Telefonnummer.
[[alternative HTML version deleted]]
______________________________________________
R-package-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-package-devel
______________________________________________
R-package-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-package-devel
