Hello @bulwahn,
First time looking at it. Wish this would’ve been available back in May when we started with it 
.
From quick code to the commits, i can see that the PR you refer to is from August. Our commits started however in May. I asked @abilbaotm to review the code and here’s the feedback provided:
Main differences are:
- The ament.bbclass https://github.com/rojkov/meta-ros/blob/433b6457bbac9a512097f4d9e55843ff16bb0f22/classes/ament.bbclass: Our ament.bbclass depends on the system’s ament which calls to cmake (I was expecting to change that) and the @rojkov’s depends directly on cmake and meta-ros classes.
- The rest seems rather similar.
I wouldn’t say they are identical though but we’re happy to explore this in more detail. We’ll create another branch at GitHub - erlerobot/meta-ros2: ROS 2 Layer for OpenEmbedded Linux exploring the differences. Evaluate both and push the one that gives best results to our master branch. @bulwahn I’m happy giving you maintainer rights to meta-ros2.
License-wise:
From my (humble) experience with licensing, private companies, for obvious reasons, tend to contribute back more when code is licensed under GPLv3. (Speaking as part of a private company) I’d expect meta-ros2 to be rather popular for quite a few private companies so the license was placed with that in mind.
That said, again, happy reconsidering the license if it creates a hurdle.