[GRASS-user] Running r-grass examples when building a R package

[Stefan Blumentrath]

Hi Bernardo,

Seems like GRASS GIS isn`t installed on the CI VM.

Please see:
https://github.com/NINAnor/oneimpact/pulls

You may add UbuntuGIS PPAs if you want other versions than shipped by plain Ubuntu.

Cheers
Stefan

From: grass-user <grass-user-bounces at lists.osgeo.org> On Behalf Of Bernardo Santos via grass-user
Sent: fredag 26. august 2022 12:56
To: grass-stats at lists.osgeo.org; GRASS User List <grass-user at lists.osgeo.org>
Subject: [GRASS-user] Running r-grass examples when building a R package

Dear all,

I am building a R package and some of the functions use rgrass to connect to a GRASS project and run thingfs within GRASS.
I have now set up a webpage for the package using pkgdown in integrated to Github actions. This means when I push new commits all the examples of R functions are run again and the webpage is updated with the results of the examples. Here is the webpage: https://ninanor.github.io/oneimpact/<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fninanor.github.io%2Foneimpact%2F&data=05%7C01%7CStefan.Blumentrath%40nina.no%7C4ec863c6b2d14350bafa08da8751a786%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637971082028512352%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=tLKgU9W3QU2M9Jyr4lWtCa3qDuvvH%2B4d41sewIzdYPU%3D&reserved=0>

All works fine, except the functions calling GRASS. When I run the examples form my local computer everything works, but in the Github actions it does not run, apparently because the command


system<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Frdrr.io%2Fr%2Fbase%2Fsystem.html&data=05%7C01%7CStefan.Blumentrath%40nina.no%7C4ec863c6b2d14350bafa08da8751a786%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637971082028512352%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Xlu8yfS8TnTLHdkRc91AGeQI8fUCDpRdCbySjheiaNY%3D&reserved=0>("grass78 --config path", intern = T)
to find the GRASS folder and use within rgrass::initGRASS does not work, so the connection between R and GRASS do not exist.

Does someone in the group has experience with that and could help with hints to solve it?
Is there a recommended way to make sure Github actions know where GRASS is and use it?

Best
Bernardo
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