scripts/cmake: Set SOF_MICRO to 99 on main branch

[SurajSonawane2415]

Set SOF_MICRO to 99 on the main branch

This change ensures that SOF_MICRO is set to 99 when on the main branch, similar to Zephyr’s approach for never-released branches. For other branches, it remains 0 to maintain consistency with xtensa-build-zephyr.py.

Fixes the TODO:

"default this to .99 on the main, never released branch like zephyr does"

Changes:

Detect the current Git branch using git rev-parse --abbrev-ref HEAD
Set SOF_MICRO to 99 if on main, otherwise 0

Testing:

Verified SOF_MICRO = 99 on main, 0 on other branches by running:

 cmake -DSOF_ROOT_SOURCE_DIRECTORY=$(pwd) -P scripts/cmake/version.cmake

I would appreciate your review and any suggestions for improvement. Thank you!

[sofci]

Can one of the admins verify this patch?

reply test this please to run this test once

[lgirdwood]

test this please

[lgirdwood]

No objections from me, aligning with Zephyr makes sense.

[SurajSonawane2415]

Two checks previously failed due to:

• WARNING: Missing commit description - Add an appropriate one
• ERROR: Missing Signed-off-by: line(s)

I have amended the commit to include the commit description and Signed-off-by line to resolve these issues.

[SurajSonawane2415]

No objections from me, aligning with Zephyr makes sense.

Thank you for your review!

[kv2019i]

Thank you @SurajSonawane2415 for the pull request!

Some comment inline, I'm not sure how relevant the TODO entry is, please see my comment.

[kv2019i]

Hmm, I think this TODO predates our move to have 99 set in versions.json in SOF main (just like Zephyr has a VERSION file and sets 99 as micro/patchlevel in Zephyr main). Not sure we need this check and whether it has any impact now...? Or am I missing something?