>>>>> Martin Maechler <maech...@stat.math.ethz.ch>
>>>>> on Mon, 10 Jun 2013 11:44:57 +0200 writes:
>>>>> Dirk Eddelbuettel <e...@debian.org>
>>>>> on Sat, 8 Jun 2013 11:22:56 -0500 writes:
>> Summary:
>> The directory /usr/local/lib/R/site-library can be used
>> for site-wide multi-user installations of R.
>> This is even the default on Debian and Ubuntu (following
>> a suggestion by Kurt and Fritz a decade ago over beers --
>> what could be better). However, R enforces wrong
>> permissions on directories and files there (removing
>> group-write) which effectively defeats this purpose, and
>> breaks multiuser installation: if Tom, Dick and Harry are
>> members of group 'r-users', each one can install in the
>> directory, but neither can _upgrade_ a package installed
>> by one of the others.
>> I would like to correct this.
>> Details:
> [..........]
>> Proposal:
>> Add a new option() [with a to-be-determined name] which,
>> if enabled, turns on group-write modes for files and
>> directories, ie "664" and "775".
> [.........]
>> I would be happy to write such a patch (including
>> documentation updates) if someone from R Core can signal
>> willigness to look at it.
> "signal!" :-)
In the mean time, Dirk has sent me a patch which I've Martinized
a tiny bit,
and committed now, both for R-devel and 'R 3.0.1 patched'.
The new feature is advertized as
R CMD INSTALL --group-writable installs packages group writably,
such that update.packages() works for other group members
(suggested and from a patch by Dirk Eddelbuettel).
Wishing everyone a nice weekend,
Martin Maechler,
ETH Zurich
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