[QGIS-Developer] Settings migration from QGIS 2 to 3

[Olivier Dalang]

Hi !

I think the migration should be optional (eg. by displaying a message on
first start if there's a QGIS2 conf). I'd say this is what most programs do
for major updates. This would allow users who are a bit messy (like me) to
take advantage of QGIS3 to make a clean start.

Also, you'd be able to easily reset to factory settings by wiping the whole
QGIS3 directory (actually it's by trying to do that and not understanding
why the browser kept my providers that I learned that config was migrated).

What do you think ? Should I open a feature request ?

Still the feature will definitely be very useful for most users ! Thank you
very much for developing it :)

Olivier


On Wed, Nov 1, 2017 at 9:50 PM, Stefan Blumentrath <
Stefan.Blumentrath at nina.no> wrote:

> Thanks so much Alessandro!
>
>
>
> Having read some documentation:
>
> https://connect.boundlessgeo.com/docs/desktop/1.1.0/system_
> admins/globalsettings.html
>
> I am sure that this will be a cool new feature in QGIS 3 that will be very
> much appreciated by organisations!!!
>
>
>
> Thanks again for the hint!
>
>
>
> Cheers
>
> Stefan
>
>
>
> *From:* Alessandro Pasotti [mailto:apasotti at gmail.com]
> *Sent:* onsdag 1. november 2017 09.30
> *To:* Stefan Blumentrath <Stefan.Blumentrath at nina.no>
> *Cc:* Nathan Woodrow <madmanwoo at gmail.com>; Borys Jurgiel <
> lists at borysjurgiel.pl>; Richard Duivenvoorde <richard at duif.net>;
> qgis-developer at lists.osgeo.org
>
> *Subject:* Re: [QGIS-Developer] Settings migration from QGIS 2 to 3
>
>
>
>
> Stefan, you may try to use global settings for shared user settings, you
> can specify the global settings file path in several ways (and it could
> even be a shared network folder).
>
> See:
> https://github.com/qgis/QGIS/blob/master/src/app/main.cpp#L131
>
> and:
> https://github.com/qgis/QGIS/blob/master/src/app/main.cpp#L831
>
> the global settings format is exactly the same of the user settings file:
> INI.
>
> Hope this helps.
>
>
>
>
>
> On Tue, Oct 31, 2017 at 11:19 PM, Stefan Blumentrath <
> Stefan.Blumentrath at nina.no> wrote:
>
> Dear all,
>
>
>
> I am really looking forward to seeing all QGIS configuration in ini-files
> and that registry will be abandoned on Windows in QGIS 3!
>
> That will be a great improvement, esp. from a sys-admin perspective!
>
>
>
> In this consolidation context I was wondering I would be possible to
> prepare for:
>
> -          Use of relative path (https://issues.qgis.org/issues/12623)
>
> -          Usage of variables in the ini file
>
>
>
> I have been earlier thinking about “versioning” of ini files, so that
> updates (e.g. changes in OWS URLs) can be passed to all users as a sort of
> “diff/merge” without damaging individual adjustments they might have made.
>
> Background is that the Norwegian mapping authority provides a “Service
> feed” (https://register.geonorge.no/register/tjenestevarsler) where all
> OWS changes are announced… I would love to be able to just apply those
> changes to all our users…
>
>
>
> No idea if such a thing could be fostered by the way settings are stored
> in the ini files?
>
>
>
> Cheers
>
> Stefan
>
>
>
> *From:* QGIS-Developer [mailto:qgis-developer-bounces at lists.osgeo.org] *On
> Behalf Of *Nathan Woodrow
> *Sent:* mandag 30. oktober 2017 15.27
> *To:* Borys Jurgiel <lists at borysjurgiel.pl>
> *Cc:* Richard Duivenvoorde <richard at duif.net>;
> qgis-developer at lists.osgeo.org
> *Subject:* Re: [QGIS-Developer] Settings migration from QGIS 2 to 3
>
>
>
> Ah right.  I'm happy with whatever there.
>
>
>
> On Tue, Oct 31, 2017 at 12:25 AM, Borys Jurgiel <lists at borysjurgiel.pl>
> wrote:
>
> Dnia wtorek, 31 października 2017 00:19:49 Nathan Woodrow pisze:
> > Hey,
> >
> > > There are over 100 keys there, are we going to migrate them all from
> >
> > Windows
> > to windows, like we did with Qgis -> qgis?
> >
> > No I don't think we need to do anything for those subgroups, dropping the
> > Windows placement between version isn't a big deal.  The main core things
> > to migrate is stuff that is a pain to setup again.
>
> Sorry I was unclear. I didn't mean migrating the values, just changing the
> section for all these keys.
>
> Regards,
> Borys
>
>
>
>
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>
>
>
> --
>
> Alessandro Pasotti
> w3:   www.itopen.it
>
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