[Rd] R CMD check should check date in description

[Paul Gilbert]

Robert Gentleman wrote:
> Kurt Hornik wrote:
>   
>>>>>>> hadley wickham writes:
>>>>>>>               
>>>> I recently thought about this.  I see several issues.
>>>>
>>>> * How can we determine if it is "old"?  Relative to the time when the
>>>> package was uploaded to a repository?
>>>>
>>>> * Some developers might actually want a different date for a variety of
>>>> reasons ...
>>>>
>>>> * What we currently say in R-exts is
>>>>
>>>> The optional `Date' field gives the release date of the current
>>>> version of the package.  It is strongly recommended to use the
>>>> yyyy-mm-dd format conforming to the ISO standard.
>>>>
>>>> Many packages do not comply with the latter (but I have some code to
>>>> sanitize most of these), and "release date" may be a moving target.
>>>>
>>>> The best that I could think of is to teach R CMD build to *add* a Date
>>>> field if there was none.
>>>>         
>>> That sounds like a good solution to me.
>>>       
>> Ok.  However, 2.7.0 feature freeze soon ...
>>     
>
>    Please no.  If people want one then they should add it manually. It 
> is optional, and some of us have explicitly opted out and would like to 
> continue to do so.
>
>
>   
>>> Otherwise, maybe just a message from R CMD check?  i.e. just like
>>> failing the codetools checks, it might be perfectly ok, but you should
>>> be doing it consciously, not by mistake.
>>>       
>> I am working on that, too (e.g. a simple NOTE in case the date spec
>> cannot be canonicalized, etc.).  If file time stamps were realiable, we
>> could compare these to the given date.  This is I guess all we can do
>> for e.g. CRAN's daily checking (where comparing to the date the check
>> is run is not too useful) ...
>>     
>
>    But definitely not a warning.
>   
Yes, please not a warning.  I think of warnings as something I should 
try to fix, so they throw errors in my make system.  If I change that I 
will miss all the warnings.  If something is really optional then it 
should at most be flagged by NOTE.  (BTW, if you use make to control 
your build it is pretty easy to put the date in automatically.)

Paul
>    Robert
>
>   
>> Best
>> -k
>>
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>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>>     
>
>   
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