Read network device names from Network Manager

[ilmanzo]

Fix for openSUSE, makes the test independent from the network device naming scheme

• Related ticket: https://progress.opensuse.org/issues/151273
• Needles: N/A
• Verification runs:
  • https://openqa.opensuse.org/tests/3800277
  • https://openqa.suse.de/tests/13023338

[michaelgrifalconi]

Is there any other way instead of grep-ing text ouputs meant for user interface? Like some json output for example, to be more on the safe side (I am not a fan of using grep output as an API as might change, even if unlikely).
But on the other hand is an easy thing to fix if it will ever break, so no hard opinions here!

[ilmanzo]

Is there any other way instead of grep-ing text ouputs meant for user interface? Like some json output for example, to be more on the safe side (I am not a fan of using grep output as an API as might change, even if unlikely). But on the other hand is an easy thing to fix if it will ever break, so no hard opinions here!

I'm not aware of any json output option (but it can be a good proposal to add in upstream nmcli :) according to the man page,

 -t | --terse
           Output is terse. This mode is designed and suitable for computer (script) processing.

we can also use -g as @Vogtinator suggests, but it's pretty much an alias

[michaelgrifalconi]

Oh interesting, so they are aware that this is used in scripts and provide some sort of API-like text output :D Good enough I guess :)