[yocto] Setting a custom hostname using git revisions?

[Giordon Stark]

Hi all,

I looked at the bitbake manual, but if I have a custom layer that's checked
out at a specific revision, how can I access the variable containing the
revision to embed it into the hostname variable?

I would want to append the hostname variable in:
recipes-core/base-files/base-files_%.bbappend which is currently set to
"${MACHINE}".

Instead, I would like something along the lines of
"${MACHINE}-${LAYER_REV}".

Thanks,

Giordon
-- 
Giordon Stark
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