Separate qgis_process params with --

[m-kuhn]

Description

Collision free parameters for qgis_process by separating executable args and algorithm args with --

qgis_process run algname --distanceUnits=meters -- PARAM1=23 PARAM2=/path/to/file distanceUnits=someOtherParam

Still supports the legacy version using --PARAM=VALUE syntax

@nyalldawson looking for your feedback before finetuning

[nyalldawson]

Looks good! There's tests for this tool also which will need extending (also the docs)

[m-kuhn]

CC @stibu81 how does this look to you?

[qgis-bot]

@m-kuhn
This pull request has been tagged as requiring documentation.

A documentation ticket will be opened at https://github.com/qgis/QGIS-Documentation when this PR is merged.

Please update the description (not the comments) with helpful description and screenshot to help the work from documentors.
Also, any commit having [needs-doc] or [Needs Documentation] in will see its message pushed to the issue, so please be as verbose as you can.

Thank you!

[qgis-bot]

@m-kuhn
A documentation ticket has been opened at qgis/QGIS-Documentation#6192
It is your responsibility to visit this ticket and add as much detail as possible for the documentation team to correctly document this change.
Thank you!

[stibu81]

CC @stibu81 how does this look to you?

@m-kuhn This looks like an excellent idea! Thanks for letting me know.