Re: [PATCH] meta-isar: hello: Use <orig-version> in CHANGELOG_V

[Jan Kiszka <jan.kiszka@siemens.com>]

On 07.05.20 22:09, Baurzhan Ismagulov wrote:
> On Wed, Apr 29, 2020 at 08:10:07AM +0200, Jan Kiszka wrote:
>> We have two problems to solve here:
>>
>>   - appending to the exact debian version our own suffix when patching it
>>   - tracking the upstream version under which the source package is
>>     extracted to so that ${S} is set correctly
>>
>> The former is addressed by my patch to debianize, for the latter I'm lacking
>> a good idea. However, that is generally not a bit issue because Debian does
>> less frequently the update of the major version, often only when switching
>> its own major release. Also, patches you carry are more likely to require
>> adjustments anyway in that case.
>>
>> The problem for setting S is not the version extraction like we do for the
>> changelog. It is that this has to happen rather early - but after recipe
>> parsing where it normally happens. It would require to rewrite do_apt_fetch
>> so that it identifies the path and sets S, somehow.
> 
> This is a very typical Debian vs. bitbake problem which falls into the 20% that
> bitbake doesn't solve nicely. Another example is static DEPENDS of bitbake vs.
> Debian's dynamic Depends that become known only after fetching. Besides hacking
> the relevant places like do_apt_fetch, these currently tend to require
> non-intuitive, hard-to-debug stuff like S="${@...}" or anonymous functions. I

Even that Python inlining won't help because it runs too early, during 
parsing, as well and we need that after some tasks have been completed, 
namely the apt-src fetching and unpacking.

Jan

> think this particular issue is a good minimal example how we could tackle such
> stuff with bitbake. That said, it requires careful consideration beyond the
> useful step that the patch addresses. So, I've applied this to next, thanks.
> 
> With kind regards,
> Baurzhan.
> 

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