[Rd] Ignore Sites Option For libPaths

[Gabriel Becker]

Hi Dario,

My switchr package is designed specifically to do what you're describing,
and does support excluding site libraries. So clearly I agree it would be
useful, but also, it does go against the "concept" of site libraries
somewhat.

I agree it would be a useful addition with the default to including them,
personally. And the patch would be pretty easy to put together. I can put
together a patch and add it to bugzilla as a wishlist item and we'll see
what thoughts are (unless I hear an emphatic no here, in which case I won't
bother, or unless you'd like to take a crack at it yourself).

~G

On Tue, Dec 8, 2020 at 3:00 PM Dario Strbenac <dstr7320 using uni.sydney.edu.au>
wrote:

> Good day,
>
> Could .libPaths gain an option to ignore all values other than the
> user-specified new parameter? Currently, it takes the union of new and
> .Library and .Library.site and there is no way to turn it off. For quick
> and convenient troubleshooting that doesn't involve requiring the editing
> of configuration files, it would be nice to be able to run
> .libPaths(.libPaths()[1], ignoreSiteFiles = TRUE) to limit to only one
> folder of R packages.
>
> > .libPaths()
> [1] "/dskh/nobackup/biostat/Rpackages/v4"
> "/usr/users/course/splus/library/R"
> [3] "/usr/lib/R/site-library"             "/usr/lib/R/library"
> > .libPaths(.libPaths()[1]) # No option to ignore system-wide folders.
> > .libPaths() # Paths are same as before.
> [1] "/dskh/nobackup/biostat/Rpackages/v4"
> "/usr/users/course/splus/library/R"
> [3] "/usr/lib/R/site-library"             "/usr/lib/R/library"
>
> --------------------------------------
> Dario Strbenac
> University of Sydney
> Camperdown NSW 2050
> Australia
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