Re: [PATCH 0/4] BitBake update in Isar - part 1

["'Clara Kowalsky' via isar-users" <isar-users@googlegroups.com>]

On 11/4/26 10:32, Anton Mikanovich wrote:
> Hello Clara,
> 
> Bitbake was not updated for a long time for the reason.
> Newer Bitbake releases are using "valid_signals" call which was 
> introduced in
> Python 3.8, but Isar still support building Buster with Python 3.7 only.
> 
> Did you fix Buster compatibility somehow?

Yes, I fixed the Buster issue where WIC ran inside Buster's imaging 
chroot and imported BitBake. I have a commit that moves WIC to the build 
host's Python and leaves only imaging utilities in the chroot. I tested 
it extensively in the testsuite for Buster and newer targets + newest 
BitBake.

Regarding these first patches, I wanted to get some feedback on those 
first before sending the rest of the patches to not have too many 
changes at once.

Clara
> 
> 04.11.2026 11:22, 'Clara Kowalsky' via isar-users wrote:
>> These are first commits for preparing the update of BitBake in Isar.
>> Currently, BitBake v2.8.0 is used, which is very outdated. The goal is
>> to update to v2.20.0, which is the latest release.
>>
>> Clara Kowalsky (4):
>>    base: replace BitBake's outdated persist_data
>>    isar-events: preserve cleanup for default multiconfig
>>    isar-events: close /proc/mounts after cleanup
>>    meta: migrate fetcher references to bb.fetch
>>
>>   meta/classes-global/base.bbclass           |  39 +++++---
>>   meta/classes-global/isar-events.bbclass    |  48 +++++----
>>   meta/classes-global/sstate.bbclass         |  14 +--
>>   meta/classes-recipe/bootstrap.bbclass      |   4 +-
>>   meta/classes-recipe/dpkg-base.bbclass      |   6 +-
>>   meta/classes-recipe/dpkg.bbclass           |   2 +-
>>   meta/conf/bitbake.conf                     |   6 +-
>>   meta/lib/aptsrc_fetcher.py                 |   8 +-
>>   meta/lib/container_fetcher.py              |  12 +--
>>   meta/lib/oe/patch.py                       |  10 +-
>>   meta/recipes-devtools/base-apt/base-apt.bb |   2 +-
>>   testsuite/unittests/test_build_uuid.py     | 107 +++++++++++++++++++++
>>   12 files changed, 188 insertions(+), 70 deletions(-)
>>   create mode 100644 testsuite/unittests/test_build_uuid.py
>>
> 

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