That would work.
Sys.info()['release']
# release
# "5.4.72-microsoft-standard-WSL2"
Brenton
From: Martin Maechler
Sent: Wednesday, April 14, 2021 03:28
To: Brenton Wiernik
Cc: r-devel@r-project.org
Subject: Re: [Rd] Sys.timezone() fails on Linux under Microsoft WSL
>>>>> Brenton Wiernik
>>>>> on Tue, 13 Apr 2021 09:15:50 -0400 writes:
> In Microsoft’s Windows Subsystem for Linux (WSL or WSL2),
> there is not system framework, so utilities that depend on
> it fail. This includes timedatectl which R uses in
> Sys.timezone(). The timedatectl utility is present on
> Linux systems installed under WSL/WSL2, but is
> non-functional. So, when Sys.timezone() checks for
> Sys.which("timedatectl"), it receives a false
> positive. The subsequent methods after this if () do work,
> however.
> This can be fixed if line 42 of Sys.timezone() were changed from:
> if (nzchar(Sys.which("timedatectl"))) {
> to:
> if (nzchar(Sys.which("timedatectl")) && !grepl("microsoft", system("uname
-r", intern = TRUE), ignore.case = TRUE)) {
> "uname -r" returns for example: "5.4.72-microsoft-standard-WSL2"
> So checking for "microsoft" or "WSL" would probably work.
> Brenton Wiernik
Thank you. This all makes sense.
However, using system("uname -r") creates another platform
dependency (it fails, i.e., signals an error, e.g., on our Windows Server).
Could Sys.info() be used instead?
What does it give on your platform?
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