[Rd] R CMD check should check date in description

[Spencer Graves]

      What do you think about adding this to section 1.1.1 of "Writing R 
Extensions", something like the following, between the paragraphs on 
"The 'package' and 'version' fields" and "The 'License' field: 


      The optional 'Date' field can be either a fixed date (preferably 
in the yyyy-mm-dd format conforming to the ISO standard) or as "Date:  
$Date$" or "Date:  $LastChangedDate$" so this field caries the package 
build date or last changed date, respectively. 


      Spencer

Dirk Eddelbuettel wrote:
> On 4 April 2008 at 14:05, hadley wickham wrote:
> | I'm always forgetting to update the date in DESCRIPTION.  Would it be
> | possible to add a warning to R CMD check if it's old?
>
> As I mentioned to Hadley in private mail, a version control system can update
> a field like $Date$ or $LastChangedDate$ automagically on writes or
> checkins. I use that as I also tend to forget to update the field manually.
> For SVN one must set one of the arcane propset fields.
>
> Hth, Dirk
>
> --
> Three out of two people have difficulties with fractions.
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