Carl, I think your statement is false, the whole point of R_user_dir() is for packages to have a well-defined location that is allowed - from CRAN policy:
"For R version 4.0 or later (hence a version dependency is required or only conditional use is possible), packages may store user-specific data, configuration and cache files in their respective user directories obtained from tools::R_user_dir(), provided that by default sizes are kept as small as possible and the contents are actively managed (including removing outdated material)." Cheers, Simon > On 28/06/2023, at 10:36 AM, Carl Boettiger <cboet...@gmail.com> wrote: > > tools::R_user_dir() provides configurable directories for R packages > to write persistent information consistent with standard best > practices relative to each supported operating systems for > applications to store data, config, and cache information > respectively. These standard best practices include writing to > directories in the users home filespace, which is also specifically > against CRAN policy. > > These defaults can be overridden by setting the environmental > variables R_USER_DATA_DIR , R_USER_CONFIG_DIR, R_USER_CACHE_DIR, > respectively. > > If R developers should be using the locations provided by > tools::R_user_dir() in packages, why does CRAN's check procedure not > set these three environmental variables to CRAN compliant location by > default (e.g. tempdir())? > > In order to comply with CRAN policy, a package developer can obviously > set these environmental variables themselves within the call for every > example, every unit test, and every vignette. Is this the recommended > approach or is there a better technique? > > Thanks for any clarification! > > Regards, > > Carl > > --- > Carl Boettiger > http://carlboettiger.info/ > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
