[Rd] Ignore Sites Option For libPaths

[Dirk Eddelbuettel]

On 9 December 2020 at 02:00, Dario Strbenac wrote:
| That seems like a straightforward and reasonable thing to do, but:
| 
| ~$ R_LIBS="/tmp" R_LIBS_SITE="/var" Rscript -e 'print(.libPaths())'
| [1] "/dora/nobackup/biostat/Rpackages/v4" "/dora/users/course/splus/library/R" 
| [3] "/usr/lib/R/site-library"             "/usr/lib/R/library"

Hm. Maybe you have code in RHOME/etc/* or in HOME to set some of these?

The (very detailed) description of what happens when is in help(Startup)
which is a great resource but as dense as they get. My example came from my
Ubuntu 20.04 box where I set nothing apart from not using a ~/R/ path.

Also try "R -q -e 'print(.libPaths())'" with these switches to narrow it down:

  --no-environ          Don't read the site and user environment files
  --no-site-file        Don't read the site-wide Rprofile                 
  --no-init-file        Don't read the user R profile

| /tmp and /var exist of course.

Right, I didn't stress that but the choice made it clear.  I still think you
should be able to tune this with just base R.

Cheers, Dirk

-- 
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