[R] lock a package to specific R version

[Uwe Ligges]

On 26.10.2011 15:12, Mehmet Suzen wrote:
>> -----Original Message-----
>> From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk]
>> Sent: 26 October 2011 10:12
>> To: Uwe Ligges
>> Cc: Mehmet Suzen; r-help at r-project.org
>> Subject: Re: [R] lock a package to specific R version
>>
>> On Wed, 26 Oct 2011, Uwe Ligges wrote:
>>
>>>
>>>
>>> On 25.10.2011 11:42, Mehmet Suzen wrote:
>>>> Hi,
>>>>
>>>> I was wondering if it is possible to lock a package to a specific
>>>> version of R. Dependency attribute in the package DESCRIPTION
>>>> only accepts>= AFAIU
>>> Depends: R (>= 2.13.2), R (<= 2.13.2)
>>
>> Or even use ==
>
> Dear Professor Ripley,
>
> Thank you for the reply. We are maintaining
> Internal R packages and build binaries for different
> versions of R base, ranging from 2.8.x to 2.13.x
> We need to prevent users using "wrong" versions, but
> the ones we tested. (we distribute binaries only and package
> source base is evolving as well)
>
> Not sure how to address this, initially I was thinking
> to put R version in the package version, but package version
> in description files only allows x.x.x format which doesn't
> give a room.

No, you can have more, if you really want to.


>
>> I don't see why you would want to do this: why would a package work
>> with 2.13.1 and not 2.13.2, or 2.13.2 and not 2.14.0?  Ranges may make
>> sense.
>
> Ranges would be much more sensible then "==".

Do go ahead with my suggestion.

Best wishes,
Uwe



>
> Best Regards,
>
> Mehmet
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