[SoC] Week 12 report: Creation of a new GRASS GIS startup mechanism

L.Kladivova L.Kladivova at seznam.cz
Sat Aug 22 06:59:15 PDT 2020

Hello Community,

I am sending my last weekly report for Week 12 (August 17-August 23). The 
report can also be found in the project wiki: https://trac.osgeo.org/…dow
(https://trac.osgeo.org/grass/wiki/GSoC/2020/StartupWindow) . Next week, a 
more detailed final report will be added to this page including the state of
the art before GSoC, the state after GSoC as well as the comprehensive 
comparison of the old and new GRASS GIS startup mechanism using several 

1) What did I complete this week?

I finished implementing three very important PRs. Firstly, I aimed at the 
start in Demo Location (see ​https://github.com/OSGeo/grass/issues/862
(https://github.com/OSGeo/grass/issues/862), ​https://github.com/OSGeo/
grass/pull/868(https://github.com/OSGeo/grass/pull/868)). Now, when starting
GRASS GIS the startup screen can be skipped. It happens in two cases - 
either when a user is a first-time user (then the Demo Location with startup
mapset is offered) or the last used mapset is valid. In those cases, we can 
directly jump into GRASS GIS particularly to the Data Catalog which is now 
the core of the whole software. Secondly, I made checking functions that 
check mapsets, locations and GRASS databases when renaming and deleting in 
Data Catalog (see ​https://github.com/OSGeo/grass/issues/801
(https://github.com/OSGeo/grass/issues/801), ​https://github.com/OSGeo/
grass/pull/904(https://github.com/OSGeo/grass/pull/904)). It is not allowed 
to delete current database, location, and mapset, permanent mapset, mapset 
owned by a different user, or mapset which is "in use". Thirdly, we needed 
to have an option on how to remove the lock (how to open up mapsets "in 
use"). When switching to the mapset that is "in use", we can select if we 
want to stay in the current mapset or switch to selected mapset. So, we can 
force the removal of the lock and switch to the mapset anyway (see ​https://
, ​https://github.com/OSGeo/grass/pull/906
(https://github.com/OSGeo/grass/pull/906)). Furthermore, I corrected the bug
when multiple grass databases context menu shows Delete locations (see ​
(https://github.com/OSGeo/grass/issues/913), ​https://github.com/OSGeo/

Currently, there are two PRs which are almost done: 

   * Reflect changes when mapset/location is created from menu (​https://

This PR solves the case when mapset/location is created from menu. 

   * Add direct editing of mapset and location name and editing layer name 
   in other mapsets should be possible even when the restricted mode is on (
   (https://github.com/OSGeo/grass/pull/920), ​https://github.com/OSGeo/
   grass/issues/918(https://github.com/OSGeo/grass/issues/918), ​https://

Currently, we can rename the map by selecting it and clicking at it again, 
which opens an editing window (like in any file manager). This should work 
also for mapsets and locations. It should take into account if the 
restricted mode is on or off. The second thing is that in Data Catalog when 
we select a map in other mapset and click on it a second time to open 
editing window, we can rename it even when the restricted mode is on. This 
should not be permitted. 

2) What am I going to achieve for next week?

I am gonna write the final report that will sum up STATE BEFORE GSoC 2020 
and STATE AFTER GSoC 2020. The main part of the work is done, but there are 
a few things that are still ahead of us. I will mention them in the Final 

3) Is there any blocking issue?
No, it is not. 

Any suggestions are welcome.

Linda Kladivova
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