[bitbake-devel] distinguishing between bitbake and "higher" layers WRT fetching variables [LONG]

[Robert P. J. Day]

On Fri, 20 Jun 2014, Christopher Larson wrote:

>
> On Fri, Jun 20, 2014 at 8:47 AM, Robert P. J. Day <rpjday at crashcourse.ca> wrote:
>         (note: more annoying pedantry regarding bitbake configuration and
>       documentation but, if i'm going to explain this to my students, i
>       really need to understand it completely.)
>
>         some questions and observations about how bitbake defines some
>       fetch-related variables as opposed to how those variables are defined
>       in higher layers such as oe-core and poky. as richard purdie(?)
>       pointed out recently, the goal should be to document bitbake as
>       independently as possible from what happens in layers such as oe and
>       poky, but it seems this is not as clean as it could be.
>
>         consider first bitbake's current bitbake.conf file. first, can we
>       agree that this set of variables:
>
>
> Before I dive into the remainder of the email, we should note that
> the bitbake.conf in bitbake is never used when you use oe, it's
> solely as an example / starting point for other non-oe projects
> wanting to use bitbake. Presumably it gets forgotten about when
> changes to bitbake itself are made, and so it's fallen behind.

  oh, i realize that but (i think) my main point was that it seems
almost impossible to document bitbake completely stand-alone when
almost everyone is going to use it in the context of a higher layer
like OE, and there just seem to be unnecessary inconsistencies between
bitbake and OE that make the bitbake user manual confusing.

  more in a bit ...

rday

-- 

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
LinkedIn:                               http://ca.linkedin.com/in/rpjday
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