I don't have cigwin installed but from the command window, the terminal that Git installs, RGui, and RStudio they all return "windows" for the .Platform$OS.type for me.
On Thu, Sep 30, 2021 at 2:38 PM Duncan Murdoch <murdoch.dun...@gmail.com> wrote: > On 30/09/2021 5:21 p.m., Jeff Newmiller wrote: > > What if you are on Windows but running R at the command prompt, or via > cygwin, or in the console window of RStudio? > > > > This seems unstable to me. > > Sorry, too much context missing. What's unstable? > > Duncan Murdoch > > > > > On September 30, 2021 11:52:16 AM PDT, Andrew Simmons < > akwsi...@gmail.com> wrote: > >> Hello, > >> > >> > >> I'm updating my package 'this.path' which is supposed to retrieve the > >> absolute path of the executing script when called. It's similar to > 'here', > >> except that 'here' constructs paths relative to a project directory, > >> whereas 'this.path' constructs paths relative to script directories. I > was > >> updating the section where I retrieve the executing script's path while > >> running from a script open in Rgui for Windows, and I needed > >> utils::getWindowsHandles to do such a thing. But > utils::getWindowsHandles > >> is a Windows only function, I > >> would imagine that 'utils' contains a similar line of code as above: > >> > >> > >> if (.Platform$OS.type == "windows") > >> getWindowsHandles <- function() ... > >> > >> > >> and then in the NAMESPACE: > >> > >> > >> if (.Platform$OS.type == "windows") > >> export(getWindowsHandles) > >> > >> > >> so I'd like to change my code to getWindowsHandles and import > >> getWindowsHandles from utils, but I can only do that on Windows, and so > the > >> conditional importing should work for me. At no point does my function > >> mis-behave because of a attempting to use a function that isn't > exported on > >> that platform, because within the function it only uses > getWindowsHandles > >> if the OS is Windows. > >> > >> > >> On Thu, Sep 30, 2021 at 11:01 AM Mark Miller < > mark.roman.mil...@gmail.com> > >> wrote: > >> > >>> Returning to the original question, if it's helpful: I'd like to know > what > >>> constraints led to considering an export only available on Windows, > and see > >>> if we can suggest some other designs. It'd be good to keep the user's > >>> mental model abstracted from the platform they're working on. There are > >>> often unavoidable differences due to platform, but usually they're > handled > >>> with warnings and errors rather than selective exports. > >>> > >>> On Thu, Sep 30, 2021 at 3:40 AM Berry Boessenkool < > >>> berryboessenk...@hotmail.com> wrote: > >>> > >>>> > >>>> One of the very best fortunes nominations! > >>>> > >>>> [...] > >>>> > >>>> I suspect something like > >>>> > >>>> if (stats::runif(1) > 0.5) export(someFunction) > >>>> > >>>> would work too, for a particularly frustrating experience for your > >>>> users. It would mean half the installs export the function, and half > >>>> don't. > >>>> > >>>> Duncan Murdoch > >>>> > >>>> > >>>> [[alternative HTML version deleted]] > >>>> > >>>> ______________________________________________ > >>>> 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 > >>> > >> > >> [[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 > -- John :wq [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel