r.in.pdal: Improve PDAL error handling

[marisn]

Some non-conformant LAS files trigger an error in PDAL library that results in an unhandled exit from r.in.pdal module. This code catches all PDAL errors and reports them in a GRASS way.

One of error sources is lack of SRS information in the imported LAS file. This code propagates SRS check override from GRASS to PDAL library thus eliminating an error observed by non-conformant 1.4 LAS files.

Fixes: #4157

See also:
qgis/QGIS#51862 (comment)
PDAL/PDAL#3818

[echoix]

Seems an appropriate solution to send nosrs to PDAL by reading your linked threads. Was the "nosrs" option available for all our supported versions? If not, we might need to change our version requirements.

[echoix]

@marisn I didn't know you were the person of knowledge on that topic. In the QGIS thread linked, it suggested having PDAL >=2.7.2. We had a problem in our docker images, where the PDAL version couldn't be upgraded, and we reverted it. #3960
Do you have an idea how we could get it unblocked? The later versions enforced a proj version that wasn't available for the ubuntu repositories.

One of the docker images is stuck on 2.7.1 (ubuntu wxGUI), and the debian one on 2.7.2.

[marisn]

Seems an appropriate solution to send nosrs to PDAL by reading your linked threads. Was the "nosrs" option available for all our supported versions? If not, we might need to change our version requirements.

Good catch! It has been added in PDAL 2.3.0 – we'll have to come up with some version check as PDAL doesn't like unknown options. Our minimum PDAL version is 1.7.1, although I have no idea if it is even possible to compile GRASS with all of its dependencies to work together with such ancient version.

[echoix]

Seems an appropriate solution to send nosrs to PDAL by reading your linked threads. Was the "nosrs" option available for all our supported versions? If not, we might need to change our version requirements.

Good catch! It has been added in PDAL 2.3.0 – we'll have to come up with some version check as PDAL doesn't like unknown options. Our minimum PDAL version is 1.7.1, although I have no idea if it is even possible to compile GRASS with all of its dependencies to work together with such ancient version.

We don't need to plan supporting such incompatible versions. Just like the Linux kernel assumes that, at one point, some older hardware isn't expected to be running the latest and greatest. It is normal for software to increase the requirements range at each release.