Add recipe for Yocto ptests & run in GitHub Actions CI

[obbardc]

Initial commit. May be a bit useless as it takes a while to build the image, but we shall see.

[brgl]

Nice, is this free? Can I do the same for libgpiod core?

[obbardc]

Nice, is this free? Can I do the same for libgpiod core?

yep, for open source projects. Building a yocto image and running it in CI is a bit of an antipattern though

[brgl]

I don't see a different way of testing it without being able to run a custom kernel with gpio-sim module enabled.

[obbardc]

I don't see a different way of testing it without being able to run a custom kernel with gpio-sim module enabled.

Yeah, I agree.

Currently it fails with:

Run kas build kas/ci.yml
2026-04-21 14:23:29 - INFO     - kas 4.7 started
2026-04-21 14:23:29 - INFO     - Running on GitHub Actions
2026-04-21 14:23:29 - INFO     - Cloning repository poky
2026-04-21 14:23:29 - INFO     - Cloning repository meta-openembedded
2026-04-21 14:23:36 - INFO     - Repository meta-openembedded already contains master as commit
2026-04-21 14:23:45 - INFO     - Repository poky already contains master as commit
2026-04-21 14:23:45 - INFO     - Repository poky checked out to 5c2b3d184065b0a15695bad7db455ef65653e4c6
2026-04-21 14:23:46 - INFO     - Repository meta-openembedded checked out to 7bf89d06a41405b48fa3af260da36bc686973afc
2026-04-21 14:23:46 - ERROR    - Did not find any init-build-env script

Don't really have time right now to investigate it, but will come back to it soonish.

[obbardc]

@brgl I managed to build an image with the test deps, but the test always seems to pass. Can you help me figure out what I am doing wrong ? I build & run with:

# build the image
kas-container build tests/yocto/gpiod-sysfs-proxy-tests.yml
kas-container --runtime-args "-v $PWD:/mnt:ro" shell tests/yocto/gpiod-sysfs-proxy-tests.yml
runqemu qemux86-64 core-image-minimal nographic slirp snapshot \
  qemuparams="-virtfs local,path=/mnt,mount_tag=hostshare,security_model=none,id=hostshare"

# inside the VM:
mount -t 9p -o trans=virtio,version=9p2000.L hostshare /mnt
cp /mnt/gpiod-sysfs-proxy /usr/bin/gpiod-sysfs-proxy
systemctl restart gpiod-sysfs-proxy
cd /usr/lib/gpiod-sysfs-proxy/ptest/tests
./gpio-sysfs-compat-tests -v

[brgl]

@brgl I managed to build an image with the test deps, but the test always seems to pass. Can you help me figure out what I am doing wrong ? I build & run with:

You mean they pass with pyfuse3? The setup looks correct. What's the output from the test script?

[obbardc]

@brgl I managed to build an image with the test deps, but the test always seems to pass. Can you help me figure out what I am doing wrong ? I build & run with:

You mean they pass with pyfuse3? The setup looks correct. What's the output from the test script?

The test doesn't seem to use the local checkout of this repo :/. Not sure how to fix that, any pointers welcome!

[brgl]

@brgl I managed to build an image with the test deps, but the test always seems to pass. Can you help me figure out what I am doing wrong ? I build & run with:

You mean they pass with pyfuse3? The setup looks correct. What's the output from the test script?

The test doesn't seem to use the local checkout of this repo :/. Not sure how to fix that, any pointers welcome!

How about not installing the gpiod-sysfs-proxy package and getting it directly from git? Just install python3-pip, fuse-dev and packagegroup-self-hosted and you should be good to go?