https://bugs.freedesktop.org/show_bug.cgi?id=111637

Bug ID: 111637 Summary: Document configuration shadowing and clean up handling that in igt_core Product: DRI Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: not set Component: IGT Assignee: dri-devel@lists.freedesktop.org Reporter: arkadiusz.hiler@intel.com

The current agreed order of importance is as follows: .igtrc < ENV < --switch

or to put it in words .igtrc option is less important than ENV .igtrc and ENV are both less important than --switch

Real world example: https://patchwork.freedesktop.org/series/63553/

device for IGT execution can be specified as Common::Device in .igtrc, IGT_DEVICE env variable or --device switch on command line.

The idea is that .igtrc is the default set on the machine that can be overwritten for the whole session with env or just for a single test with --device.

This needs to be documented and the whey we handle this in igt_core.c could use some streamlining.