From c@@rd|@g@bor @end|ng |rom gm@||@com  Mon Oct  5 19:18:30 2020
From: c@@rd|@g@bor @end|ng |rom gm@||@com (=?UTF-8?B?R8OhYm9yIENzw6FyZGk=?=)
Date: Mon, 5 Oct 2020 18:18:30 +0100
Subject: [Rd] Internet access and R CMD make check-devel
In-Reply-To: <CAOC91MTUe3Rv2uhv--KQv3bcWGMvWDxswjyFvF3O85UA44dzbw@mail.gmail.com>
References: <CAOC91MTUe3Rv2uhv--KQv3bcWGMvWDxswjyFvF3O85UA44dzbw@mail.gmail.com>
Message-ID: <CABtg=Kmqox1RrO2HYqeLTdy51iB9euPoPuh4-=S4D2LeY278rg@mail.gmail.com>

One way would be to comment out these tests, or really turn off the
internet, and then these tests don't run.

Indeed, a successful DNS query does not mean that you can connect to
the internet in general. FWIW pingr::is_online [1] implements a method
that works well. Apple's Captive Portal test page is the best method
to determine if you are online, in my experience.

[1] https://github.com/cran/pingr/blob/4594ce0cd40b6ba69f1bcc2379e0038c38dd710f/R/ping-package.r#L135

Gabor


On Mon, Oct 5, 2020 at 5:49 PM Thomas J. Leeper <thosjleeper at gmail.com> wrote:
>
> I am trying to install R on CentOS (either 7 or 8, behavior is the
> same) in an environment behind a firewall and while I am able to run:
>
> R CMD make check
>
> I am unable to run:
>
> R CMD make check-devel
>
> These latter tests fail. The failure occurs in the internet access
> if() conditional statement in these two tests:
>
> https://svn.r-project.org/R/trunk/tests/internet.R
> https://svn.r-project.org/R/trunk/tests/internet2.R
>
> In my environment, nsl("cran.r-project.org") returns a valid, non-null
> value but subsequent commands in those test files do not successfully
> access the internet.
>
> I'd like to be able to run the full test suite given I am building
> from source. I'm wondering if it's possible to make these conditionals
> more strict so that the conditional tests internet access in a manner
> more similar to how internet access is used in the tests. Would this
> be possible? Or, make tests that require internet access into a
> distinct `check-internet` or similar?
>
> As an additional reference, the same conditional statement appears to
> also be used in these other tests:
>
> https://svn.r-project.org/R/trunk/tests/CRANtools.R
> https://svn.r-project.org/R/trunk/tests/libcurl.R
>
> Thanks,
> -Thomas
>
> Thomas J. Leeper
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel



[Rd] Internet access and R CMD make check-devel
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