[PROJ] PROJ 7.0.0RC1

[Even Rouault]

> Hence it seems that proj-datumgrid itself is not entirely superseded by
> proj-data, unlike the regional archives.

For "normal" users, proj-datumgrid should be deprecated. We indeed need a few 
"old" grids for the tests, that can be fetched for there. We could potentially 
consider just dumping them, or a spatial subset of them, in PROJ main repo, 
now that we have a data/for_tests subdirectory.

> Packaging proj-data has the same problem as proj-datumgrid regional
> archive, it's a PITA to maintain the copyright file for the various
> grids

How can we help for that ? We have the README files with all copyright and 
licensing information. I guess you may have some required formalism for the 
sake of Debian packaging. Would a CSV file like
https://github.com/OSGeo/proj-datumgrid/blob/master/filelist.csv be helpful, 
with filename, copyright and license columns, so that you can automate the 
building of the Debian copyright file ? That .csv file was created to automate 
the mass conversion of GTX & NTv2 grids to GeoTIFF files. It could be a good 
start if we wanted to resurect it in PROJ-data repository for the sake of 
easing maintaining copyright informatio
I'd note also that all GeoTIFF file in PROJ-data embed copyright & licensing 
info in TIFF metadata.

Even

-- 
Spatialys - Geospatial professional services
http://www.spatialys.com