[GRASS-user] Error with installing addons in Windows

[Sajid Pareeth]

Hi Stefan

Thanks for the reply. Sorry for the delay in response.

I solved it temporarily by asking the participants to install GRASS 7.8.5
into the OSGeo4W/apps folder and update the environment accordingly, and it
worked.
But your solution of downloading the addon and extracting it to "
C:\Users\%USER%\AppData\Roaming\GRASS7\addons\", is more elegant and it
works.

I also support the additional feature of installing the addon in Windows.

Thanks again for pointing out "find_program", it is the perfect solution to
check if an addon is installed or not.

Best regards,

Sajid


On Mon, Aug 2, 2021 at 1:56 AM Stefan Blumentrath <
Stefan.Blumentrath at nina.no> wrote:

> Hi Sajid,
>
> On Windows, addons are distributed as precompiled binaries for a specific
> version.
> 7.8.6 is just a release candidate, so there are no pre-compiled addons yet.
> With OSGeo4W Version 1, which you can get here:
> https://download.osgeo.org/osgeo4w/osgeo4w-setup-x86-v1.exe
> you can get GRASS 7.8.5 where installation of addons works fine.
>
> In order to make addons work for GRASS 7.8.6 we would first need a release
> and then packaging of addons for that version. So no quick fix.
>
> As a workaround you could download the required addons for GRASS 7.8.5 and
> ask your students to extract them into their user profile, which is
> typically:
> C:\Users\%USER%\AppData\Roaming\GRASS7\addons\
> That is a hack of course but should work (though I have not tested)...
>
> As for your related questions:
> 1) Might be a good idea to support installation of addons from local zip
> files. At least for Python scripts that should generally work. There is
> already a similar feature request in here:
> https://github.com/OSGeo/grass/issues/625#issuecomment-797414504...
> 2) Not sure I understand the question correctly, but you could check if an
> addon is present (e.g. with
> https://grass.osgeo.org/grass79/manuals/libpython/script.html?highlight=find_#script.core.find_program
> )
>
> Hope that helps a bit (though it may be late for your course).
>
> Cheers
> Stefan
> ------------------------------
> *Fra:* grass-user <grass-user-bounces at lists.osgeo.org> på vegne av Sajid
> Pareeth <spareeth at gmail.com>
> *Sendt:* torsdag 29. juli 2021 16:48
> *Til:* GRASS user list <grass-user at lists.osgeo.org>
> *Emne:* [GRASS-user] Error with installing addons in Windows
>
> Dear all
>
> While installing an addon using g.extension in Windows 10, gives the
> following error.
>
> "ERROR: Cannot open URL:
>
>        http://wingrass.fsv.cvut.cz/grass78/x86_64/addons/grass-7.
> 8.6RC1/r.series.lwr.zip
> <https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwingrass.fsv.cvut.cz%2Fgrass78%2Fx86_64%2Faddons%2Fgrass-7.8.6RC1%2Fr.series.lwr.zip&data=04%7C01%7C%7C63bfed4d4eea4b708e4d08d9529fffdb%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637631669417533127%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=7Z5m4E2VcKIdpehXbq%2F8b6prPQkB%2FLx2428jwRt7NsE%3D&reserved=0>
> "
>
>
> I see that the addons for 7.8.5 are accessible:
> http://wingrass.fsv.cvut.cz/grass78/x86_64/addons/grass-7.8.5RC1/r.series.lwr.zip
> <https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwingrass.fsv.cvut.cz%2Fgrass78%2Fx86_64%2Faddons%2Fgrass-7.8.6RC1%2Fr.series.lwr.zip&data=04%7C01%7C%7C63bfed4d4eea4b708e4d08d9529fffdb%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637631669417543124%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=5pmClXaSPsn4ZmHKboj0P78vmoFkfDgR0ZoH8irx%2B5g%3D&reserved=0> ;
> But not accessible for 7.8.6RC1.
>
> The latest OSGeo4W setup gives two GRASS GIS versions: 7.8.6RC1-4 and
> 7.8.6RC1-5.
>
> So there is no option to install 7.8.5 using OSGeo4W.
>
> Any quick work around for this issue? I am in the middle of providing
> training, and it would be great if there is a quick fix.
>
> *Related questions: *
> 1) Is there any way to install an addon from a local zip package or url in
> Windows? In the manual it says it works only for Linux and Mac.
>
> 2) Is there any way to skip installation of an addon, if it is already
> installed? Useful within a python script.
>
> Many thanks in advance
>
> Best
>
> Sajid
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/grass-user/attachments/20210813/9bbc25bd/attachment.html>