On 9/2/25 08:23, Hüsing, Johannes via R-package-devel wrote:
I am trying to install a test configuration for an existing package under
Windows 10. Here’s my in- and the system’s output.
usethis::use_testthat(edition = 3, parallel = TRUE)
✔ Setting active project to
"//some_servername/UserHome$/jhuesing/R/some_packagename".
✔ Adding "true" to Config/testthat/parallel.
Error: [EPERM] Failed to stat '//some_servername/UserHome$': operation not
permitted
//some_servername/UserHome$/jhuesing points to my personal directory, which is
mapped to a drive specification consisting of a letter and a colon. While I
rightfully don’t have access as jhuesing to //some_servername/UserHome$, I
should have access to //some_servername/UserHome$/jhuesing, and if R would
address the directory via letter + colon, the system probably would permit the
action.
I would recommend to stick to drive letter based paths. UNC paths are
not fully supported even in base R. Some R functions support them, or
try to support them, but it is very unlikely that they would generally
work and they are certainly not tested. Sometimes they don't work with
external tools, including tools used commonly with R or to build R/packages.
So I would only use UNC paths if I were going to debug/test specific
issues with UNC paths. For anything else, I would defensively use drive
letters.
Best
Tomas
Is there a way to specify the directory path in which testthat shall be added,
allowing me to write the path in a way the system would accept?
Dr. Johannes Hüsing
Epidemiologie
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