From the CRAN polcies:
"Packages on which a CRAN package depends should be available from a
mainstream repository: if any mentioned in ‘Suggests’ or ‘Enhances’
fields are not from such a repository, where to obtain them at a
repository should be specified in an ‘Additional_repositories’ field of
the DESCRIPTION file (as a comma-separated list of repository URLs) or
for other means of access, described in the ‘Description’ field. "
Best,
Uwe Ligges
On 03.01.2024 18:19, Josiah Parry wrote:
Thanks, both. I'm not familiar with Additional_repositories. Must the
package source be specified there? Or can it be specified via
documentation a la Rd file?
On Wed, Jan 3, 2024 at 12:14 PM Uwe Ligges
<lig...@statistik.tu-dortmund.de
<mailto:lig...@statistik.tu-dortmund.de>> wrote:
On 03.01.2024 17:58, Duncan Murdoch wrote:
> On 03/01/2024 11:33 a.m., Josiah Parry wrote:
>> I have a scenario where I have an exported function that
requires the
>> installation a package that *is not* available on CRAN. The body
of the
>> function is generally:
>>
>> fx <- function() {
>> rlang::check_installed("noncranpkg")
>> noncranpkg::gx()
>> }
>>
>> As required, this package is in the Suggests field. But this
results in a
>> note:
>>
>> checking package dependencies ... NOTE
>> Package suggested but not available for checking: ‘noncranpkg’
>>
>> Can this be safely ignored?
>
> Uwe said yes, and he's an authority. But for your users, it
might be
> nice to include an Additional_repositories field so they can find
the
> package. This needs to be organized as an actual repository; the
drat
> package is a very convenient way to set one up.
Thanks for elaborating, yes of course, people have to declare where to
get the package from. The note from above is still unavoidable in
that case.
Best,
Uwe
>
> Duncan Murdoch
>
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