[Rd] pointers on including SVN revision number in package info?

[Prof Brian Ripley]

On 06/01/2012 20:24, Ben Bolker wrote:
>
>    I'm trying to keep debugging of a development package relatively sane.
>
>    I see that some packages manage to incorporate what appears to be
> Subversion (SVN) revision information in the package description; for
> example,
>
>> library(MASS)
>> sessionInfo()$otherPkgs$MASS$Revision
> [1] "$Rev: 3016 $"
>
>    which looks like an auto-generated revision number.
>
>    On the other hand, the rgl package (for example) appears to manually
> encode the SVN revision in the package number:
>
>> library(rgl)
>> sessionInfo()$otherPkgs$rgl$Version
> [1] "0.92.829"
>
>    I'd love an automatic strategy, if possible, so I can be lazy about
> updating the DESCRIPTION file every time I commit a change to SVN ...
> I searched the R extensions manual (and the r-forge manual), but I'm
> sure I could have missed something ...

The Subversion book?  The MASS/DESCRIPTION file has

gannet% svn proplist DESCRIPTION
Properties on 'DESCRIPTION':
   svn:keywords

Note this only tracks the version when DESCRIPTION is changed, not what 
anything else is updated.  But then I change the DESCRIPTION file 
immediately before release.

>    Or can people suggest other useful strategies for keeping track of
> which development (micro-)version a random user might be working with?
>
>   thanks,
>    Ben Bolker
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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