[GRASS5] Imagery GROUP file

[Markus Neteler]

On Mon, Apr 15, 2002 at 09:34:28AM -0400, Frank Warmerdam wrote:
> Glynn Clements wrote:
> > Consequently, I've changed the definitions so that the files are
> > always called CURGROUP and CURSUBGROUP.
> > 
> > Users will need to rename (or re-create) any GROUP/SUBGROUP files
> > after updating to the new code.
> > 
> > Also, any supplied datasets (e.g. "imagery") will need to be updated.
> 
> Glynn,
> 
> While I concur with your reasoning is it possible to do anything with the
> code to improve backward compatibility?  Perhaps if no CURGROUP directory
> is found, the GROUP directory could be tried?  I realize implementation may
> be a little more complicated than that.
> 
> I humbly feel that changes like this can cause major user confusion and
> inconvenience and that all reasonable efforts should be made to smooth the
> compatability issues from the code side.
> 
> Finally, it would be nice to have a script that could be run to convert a
> datastore to the new naming convention if backward compatibility can't be
> maintained.

Hi,

(finally back to Italy), I agree with Frank. At least we need a migration
script since some users may have many imagery groups (like us here).

Markus