On 5 November 2022 at 19:32, David Hugh-Jones wrote: | I'm considering submitting the package onetime ( | https://github.com/hughjonesd/onetime/) to CRAN. | | Onetime has functions for showing a message or warning only once (ever per | user). It does this by writing to a file in the user's configuration | directory, as reported by rappdirs::user_config_dir().
There is a base R function tools::R_user_dir() which I use in a few packages along with packageName() to store config information across sessions. A quick search at GitHub's 'cran' org mirroring CRAN finds 110 hits: https://github.com/search?q=org%3Acran+R_user_dir&type=code You could keep a hashmap in that directory, and maybe (before it has been written a first time) alert the user that you cannot write without (initial) permission. As I recall, the idea behind the (sensible) CRAN Policy is to not litter user directories with random files with the user knowing. Dirk -- dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
