I can easily believe that. It was maily for Joris, that it might not be
necessary to reinstall.
-pd
On 17 Jan 2018, at 11:55 , Thompson, Pete <pete.thomp...@iqvia.com>
wrote:
That solution works fine for the use case where each user has a network
based home directory and needs to run R from there, but doesn’t help with
my situation. I need to be able to support arbitrary network based paths in
arbitrary numbers – so mapping drives isn’t an option. I have found a
workaround using symbolic links to the network share created within the
temporary folder, but would much prefer that R support UNC paths – it seems
a reasonably simple fix.
Cheers
Pete
On 17/01/2018, 10:52, "Peter Dalgaard" <pd....@cbs.dk> wrote:
I usually draw a complete blank if I try to assist our IT department
with such issues (we really need better documentation than the Admin manual
for large-system installs by non-experts in R).
However, it is my impression that there are also options involving
environment variables and LFS naming. E.g., map the networked user
directory to, say, a P: "drive" and make sure that the environment is set
up to reflect this.
-pd
On 16 Jan 2018, at 17:52 , Joris Meys <jorism...@gmail.com> wrote:
Hi all,
I ran into this exact issue yesterday during the exam of statistical
computing. Users can install packages in a user library that R tries to
create automatically on the network drive of the student. But that
doesn't
happen as the unc path is not read correctly, leading to R attempting to
create a local directory and being told it has no right to do so.
That is an older version of R though (3.3), but I'm wondering whether I
would ask our IT department to just update R on all these computers to
the
latest version, or if we have to look for another solution.
Cheers
Joris
On Mon, Jan 8, 2018 at 1:43 PM, Thompson, Pete <pete.thomp...@iqvia.com
wrote:
Hi, I’d like to ask about bug 17159:
https://bugs.r-project.org/bugzilla/show_bug.cgi?id=17159
I can confirm that I see exactly this bug when using dir.create on
paths
of UNC form (\\server\share\xxx), with the recursive flag set. I’m
seeing
this when attempting to use install.packages with such a path (which I
know
isn’t supported, but would be great if it was!). I can see that a
patch has
been suggested for the problem and from looking at the source code I
believe it’s a correct fix. Is there a possibility of getting this
patch
included?
The existing logic for Windows recursive dir.create (platform.c lines
2209-22203) appears to be:
- Skip over any \\share at the start of the directory name
- Loop while there are pieces of directory name left (i.e. we haven’t
hit
the last \ character)
= Find the next portion of the directory name (up to the next \
character)
= Attempt to create the directory (unless it is of the form x: - i.e. a
drive name)
= Ignore any ‘already exists’ errors, otherwise throw an error
This logic appears flawed in that it skips \\share which isn’t a valid
path format (according to https://msdn.microsoft.com/en-
us/library/windows/desktop/aa365247(v=vs.85).aspx ). Dredging my
memory,
it’s possible that \\share was a supported format in very old versions
of
Windows, but it’s been a long time since the UNC format came in. It’s
also
possible that \\share is a valid format in some odd environments, but
the
UNC format is far more widely used.
The patch suggested by Evan Cortens is simply to change the skip logic
to
skip over \\server\share instead of \\share. This will certainly fix
the
common use case of using UNC paths, but doesn’t attempt to deal with
all
the more complex options in Microsoft’s documentation. I doubt many
users
would ask for the complex cases, but the basic UNC format would be of
wide
applicability.
Thanks
Pete Thompson
Director, Information Technology
Head of Spotfire Centre of Excellence
IQVIA
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________________________________________
IMPORTANT - PLEASE READ: This electronic message, including its
attachments, is CONFIDENTIAL and may contain PROPRIETARY or LEGALLY
PRIVILEGED or PROTECTED information and is intended for the authorized
recipient of the sender. If you are not the intended recipient, you are
hereby notified that any use, disclosure, copying, or distribution of this
message or any of the information included in it is unauthorized and
strictly prohibited. If you have received this message in error, please
immediately notify the sender by reply e-mail and permanently delete this
message and its attachments, along with any copies thereof, from all
locations received (e.g., computer, mobile device, etc.). Thank you.
______________________________________________
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--
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: pd....@cbs.dk Priv: pda...@gmail.com
