Compiled code is another source of long names. Some libraries are produced by companies with style restrictions that demand LongDescriptiveNames for functions and classes, and which expect file names to match the name of the class contained within. If you've got Models/SpecificModelFamily/PosteriorSamplers/SpecificTypeOfPosteriorSampler.hpp it leaves very little room (20 characters) for "C:\Users\..." etc up front.
I solved my 'tar' problems with 'sed'. In human readable code I keep the long names. In the code that gets submitted to CRAN I pass specific file names through sed to rename the long files. I have an install script with lines like: hdr="MvStateSpaceRegressionPosteriorSampler.hpp" new_hdr="MVSSRPS.hpp" mv "$ibase/$dbase/$hdr" "$ibase/$dbase/$new_hdr" echo "replacing $dbase/$hdr with $dbase/$new_hdr" grep -rl "$dbase/$hdr" "$BOOM_DIR/src/Models" | xargs $SED -i "s|$dbase/$hdr|$dbase/$new_hdr|g" This renames the files, and uses sed to replace #include references to file names with the shorter file names. The SED macro is because on mac 'sed' is spelled 'gsed'. I agree the system sucks. It would be nice if one of the steps in winbuilder took non-windows compliant TAR files and replaced them with ZIP files or something similar. We'd still have the Win32 character limit, but 256 > 100 so the problem wouldn't bite so hard. On Thu, Dec 14, 2023 at 6:19 AM Vladimir Dergachev <volo...@mindspring.com> wrote: > > > On Wed, 13 Dec 2023, McGrath, Justin M wrote: > > > On Windows, packages will be in "C:\Users\[User > Name]\Documents\R\win-library\[R version]\[Package Name]". > > > > With a 150 byte limit, that leaves 70 bytes for the user name, R version > > and package name. That seems more than sufficient. If people are > > downloading the source files, that also leaves plenty of space > > regardless where they choose to extract the files. > > > > 70 bytes ?? My name is 18 characters long and there are plenty of people > with longer names. I also saw practice on Windows systems to append the > name of organization or department. > > Also, this restricts the length of package name which is arguably more > important that internal package path names that the user never sees. > > That said, that Windows limitation is only for some programs, and the > pertitent question is whether R and any software used by R has this > limitation. I suspect the answer is no, but as all my systems are Linux > I can not check. > > Vladimir Dergachev > > ______________________________________________ > R-package-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-package-devel > [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
