[R-pkg-devel] How to create a macos-arm64 virtual machine/cloud environment to debug R package?

[Vincent van Hees]

Sorry, I now see that this may actually be a timezone specific issue which
I can now reproduce in Windows by changing the timezone of the timeseries
to "Pacific/Auckland".

This would indicate that macos-arm64 CRAN machines are based in a different
timezone than the other machines, not the arm64 OS as such.

This reminds me that I ran into a similar issues earlier this year where I
struggled to get GitHub Actions to run the macos workflow in a non-default
timezone, which I raised elsewhere:
https://community.rstudio.com/t/upgrading-github-action-workflow-to-address-no-package-called-rcmdcheck-but-unclear-how-to-account-for-timezone/166876
... I should have thought about that first.

Vincent


On Wed, 6 Dec 2023 at 10:28, Vincent van Hees <vincentvanhees using gmail.com>
wrote:

> Hello,
>
> What is the recommended way to create a virtual machine or cloud based R
> environment for debugging R package issues specific to OS macos-arm64?
>
> Details:
> CRAN results show macos-arm64 specific problems for my package:
> https://cran.r-project.org/web/checks/check_results_GGIR.html. I am able
> to reproduce them with https://mac.r-project.org/macbuilder/submit.html.
> I suspect something goes wrong with the timestamp creation or handling as
> that has caused issues with this OS for me in the past. All this relates to
> this
> <https://github.com/wadpac/GGIR/blob/master/tests/testthat/test_part5_analyseRest.R>
> test for this
> <https://github.com/wadpac/GGIR/blob/master/R/g.part5.analyseRest.R>
> function, that in the process calls this
> <https://github.com/wadpac/GGIR/blob/master/R/POSIXtime2iso8601.R> short
> function. I have been trying some edits locally and re-submitting them to
> macbuilder a couple of times to no avail. To debug this efficiently it
> would be good to have access to an R environment for this OS. I do not have
> a physical macos myself.
>
> Vincent
>

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