[QGIS-Developer] [WIP] GRASS Processing port to new API

[Tim Sutton]

Hi Médéric

I just wanted to echo the others in this thread in thanking you for doing this important work for QGIS 3!

Regards

Tim


> On 18 Sep 2017, at 7:15 AM, Nyall Dawson <nyall.dawson at gmail.com> wrote:
> 
> On 16 September 2017 at 17:35, Médéric Ribreux
> <mederic.ribreux at medspx.fr <mailto:mederic.ribreux at medspx.fr>> wrote:
>> Hello devs,
>> 
>> just a simple mail to tell you that I am currently working on QGIS3
>> Processing port of GRASS plugin.
>> You can read the code in my forked QGIS git repository:
>> https://github.com/medspx/QGIS/tree/ProcessingPortGrass72
>> 
>> For the moment, about 50% of the job is done:
>> - I have used the new QgsProcessing framework for parameters (I have used
>> modifications of processing/parameters.py made by Nyall in the SAGA port).
>> - I have modified description files according to this new framework.
>> - I can launch most of the algorithms for rasters and vectors (and some
>> imagery).
>> - I have also worked on improving layers management (importing/exporting
>> into/from temporary GRASS DB).
>> 
>> I still need to work on the following points:
>> - Adapt and factorize ext/ scripts to the new framework.
>> - Multiformat support for vector and rasters.
>> - A better support for OutputFiles (HTML and text files).
>> - Add new GRASS7.2 algorithms (less than a dozen).
>> - Verify all description files to support the new parameters introduced into
>> GRASS7.2.
>> - Port and improve unit tests.
>> - Try to fix all bugs linked to unicode support under MS-Windows.
>> 
>> I am going offline for the next 3 weeks and I think I'll be able to make a
>> (decent) PR at the end of this period of time.
>> 
>> I really hope that QGIS3 will have GRASS Processing in its first release...
> 
> Wow - tremendous work!
> 
> Please please don't hesitate to contact me if you need assistance with
> the porting or have any questions regarding the new API. There's also
> a good chance we may need to make changes/additions to the c++ API to
> handle your work - if so, let me know and we can address :)
> 
> Nyall
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