I'm also suing dunfell branch, I did a small modification in my_distro_version.bbclass:

def my_distro_version(d):
import subprocess
project_path = d.getVar('MY_LAYER_BASE', True)
cmd = "git describe --tags"
proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True, cwd=project_path)
out, err = proc.communicate()
return out.decode("utf-8").rstrip()
MY_DISTRO_VERSION := "${@my_distro_version(d)}"

Then in meta-mylayer/conf/distro/my_distro.conf I used:

INHERIT += "my_distro_version"
DISTRO_VERSION := "${MY_DISTRO_VERSION}"

It seems to be working now :-)

Thank you for the support :-)

cheers,

On Thu, Apr 28, 2022 at 1:32 PM <Mikko.Rapeli@bmw.de> wrote:

On Thu, Apr 28, 2022 at 01:25:03PM +0200, Ayoub Zaki wrote:
> Hi,
>
> thanks for the quick reply I tried your suggestion but I get:
>
> ERROR: Unable to parse Var <DISTRO_VERSION[:=]>
> Traceback (most recent call last):
> File "Var <DISTRO_VERSION[:=]>", line 1, in <module>
> bb.data_smart.ExpansionError: Failure expanding variable
> DISTRO_VERSION[:=], expression was ${@my_distro_version(d)} which triggered
> exception NameError: name 'my_distro_version' is not defined

Did you include the bbclass?

> I think in this case the INHERIT doesn't work !

Well I have in distro config:

require classes/distroversion.bbclass

which has a single python function

def get_distro_version(d, dirty=True, abbrev=None):

which basically calls "git describe --always --dirty --abbrev=8",
the last one was added when git versions started behaving differently
and breaking reproducibility.

And then distro config also has:

DISTRO_VERSION := "${@get_distro_version(d)}"

This works for me up to yocto 3.1 dunfell at least.

Cheers,

-Mikko