[Rd] Rcmd check fails on Windows Samba network path in R 2.9.1
hb at stat.berkeley.edu
Wed Jul 22 10:46:18 CEST 2009
See r-devel thread '[Rd] file.access() on network (mounted) drive on
Windows Vista' on Nov 26, 2008:
where it was concluded that file.access() is "not 100%", e.g.
file.access() and file.info() can give different answers.
I added fileAccess(..., safe=TRUE) to R.utils, which imitates
file.access() but relies also on file.info() and file.exists() to
infer the rights. It is still not 100% but (hopefully) closer than
On Tue, Jul 21, 2009 at 1:55 PM, Kevin R.
Coombes<krcoombes at mdacc.tmc.edu> wrote:
> The problem almost certainly has something to do with Samba. We also have a
> NetApp file system, and copying the package source to that drive and running
> Rcmd check from Windows works just fine.
> When running the commands from an interactive R session, file_test returns
> TRUE and file.access to test write permission indicates a failure, even
> though that information is incorrect.Here is a session transcript:
>  "n:/krc/Umpire/R-Package"
>> lib <- "Umpire.Rcheck"
>> file_test("-d", lib)
>  TRUE
>> file.access(lib, 2)
>> dir.create(paste(lib, "testdir", sep='/'))
>  "00check.log" "00install.out" "testdir" > sessionInfo()
> R version 2.9.1 (2009-06-26)
> LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
> States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252
> attached base packages:
>  stats graphics grDevices utils datasets methods base
> Again, this all worked (and still works) correctly in 2.8.1.
> Tony Plate wrote:
>> This error message looks like it comes from src/library/tools/R/install.R,
>> which contains the following test:
>> if (!.file_test("-d", lib) || file.access(lib, 2L))
>> stop("ERROR: no permission to install to directory ",
>> sQuote(lib), call. = FALSE)
>> The function .file_test() is defined earlier in the same file (it looks at
>> file.info(lib)$isdir) and appears to be intended to be the same as
>> You could start trying to figure out what the problem is by trying these
>> calls on the directory in question from an interactive R session.
>> (They seem to work as intended on my Windows system with a NetApp file
>> system mounted on a letter drive.)
>> -- Tony Plate
>> Kevin R. Coombes wrote:
>>> I have just updated R from version 2.8.1 to version 2.9.1. I am running
>>> Windows XP Professional, Service Pack 3.
>>> With the update, I decided to update a set of packages that I maintain by
>>> compiling them for the new version. Everything worked fine except for one
>>> package. This package is unique (among the six I was working on) in that is
>>> stored on a UNIX-based file server that is exported to the Windows network
>>> via Samba. The root of that network path is mapped to drive "N:" on the
>>> local machine.
>>> 'Rcmd check' fails for this package under 2.9.1. The error message in
>>> '00install.out' is:
>>> "Error: ERROR: no permission to install to directory
>>> 'Rcmd check' works for this package under 2.8.1.
>>> 'Rcmd check' works for this package if the directory is copied onto a
>>> local hard drive instead of the network drive.
>>> 'Rcmd build' and 'Rcmd build --binary' work under both versions.
>>> It would be nice if someone could figure out what has changed and fix
>>> Kevin Coombes
>>> R-devel at r-project.org mailing list
> R-devel at r-project.org mailing list
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