[R-pkg-devel] Cannot implement test configuration

[Hüsing, Johannes]

Thanks for your collective curiosity.

Ivan:
I am quite confident that the issue would be solved if the UNC version of the path would be replaced by the letter-plus-colon  MS-DOS-style expression. Typing getwd() indeed returns a letter-plus-colon path.

Kevin:
fs::file_exists(//some_servername/Userhome$) returns FALSE
file.exists(//some_servername/Userhome$) returns FALSE
fs::dir_exists(//some_servername/Userhome$) returns Error: [EPERM] Failed to stat '//some_servername/UserHome$': operation not permitted
dir.exists(//some_servername/Userhome$) returns FALSE


Michael:
Trace calls to fs::path_real() are issued multiple times when trying to build test infrastructure:
> devtools::test()
trace: path_real
ℹ No testing infrastructure found.
Create it?

1: I forget
2: Absolutely
3: No

Selection: 2
trace: dir_exists
trace: path_real
trace: path_real
✔ Setting active project to "//some_servername/UserHome$/jhuesing/R/Tools/ICD_O_3/ICDO3".
trace: dir_exists
Error: [EPERM] Failed to stat '//some_servername/UserHome$': operation not permitted
✔ Setting active project to "<no active project>".




Dr. Johannes Hüsing
Epidemiologie


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-----Ursprüngliche Nachricht-----
Von: Ivan Krylov <ikrylov using disroot.org>
Gesendet: Donnerstag, 4. September 2025 00:41
An: Hüsing, Johannes <Johannes.Huesing using krebsregister.nrw.de>
Cc: r-package-devel using r-project.org
Betreff: Re: [R-pkg-devel] Cannot implement test configuration

В Wed, 3 Sep 2025 05:50:50 +0000
"Hüsing, Johannes" <Johannes.Huesing using krebsregister.nrw.de> пишет:

> ✔ Setting active project to
> "//some-server/UserHome$/jhuesing/project_path

So, the goal is for a drive letter path to be in the above output instead of a UNC path?

> structure(list(message = "[EPERM] Failed to stat
> '//some-server/UserHome$': operation not permitted"), class =
> c("EPERM", "fs_error", "error", "condition"), location =
> "utils.cc:16"))

The error happens in fs::dir_create()... [1]

> 7: dir_create(path, recurse = TRUE)
> 6: create_directory(proj_path(path))
> 5: use_directory(path("tests", "testthat"))

...but the path originates from somewhere in usethis::proj_path().

Does getwd() return a path with a drive letter? If not, does it help to
setwd() to a drive letter path first?

Apparently usethis::proj_get() uses a UNC path. Does it help to give a drive letter path to usethis::proj_set() first?

--
Best regards,
Ivan

[1]
https://github.com/r-lib/fs/blob/0d261dd965404cb02ab57788f4437fa057a9e0a3/src/dir.cc#L31
https://github.com/r-lib/fs/blob/main/src/utils.cc#L16