Re: [poky] One recipe for fetch a bigger repo, multiple recipes to build parts of it

On Tue, Nov 5, 2024 at 7:48 AM Steve via lists.yoctoproject.org <star=
[email protected]> wrote:

> On 11/5/24 13:06, Alexander Kanavin via lists.yoctoproject.org wrote:
> > On Tue, 5 Nov 2024 at 13:01, Steve via lists.yoctoproject.org
> > <[email protected]> wrote:
> >> well download may indeed happened just once, but isn't in each recipe
> >> the git folder with it's complete content?
> >> Maybe I described it misleading:
> >> So it is not about download, but about the amount of storage needed for
> >> each recipe. Assuming 10 recipes using same main repo, in each of the
> >> ../build/tmp/<recipe-name>/<tag>+gitAUTOINC+<git-hash>/git
> >> I see the full checked out repo.
> >
> > If you want to use individual submodules, then the best would be
> > probably to have an external script that determines SRCREV for each of
> > them from what is recorded in the parent repo, and writes that into
> > recipes.
> >
> > Alex
>
> True - that is one way.
> But that doesn't sound easy with external scripts.
> And the approach to use one recipe for checkout and multiple recipes to
> access this cloned git is more effective in terms of storage usage,
> isn't it?
> How a recipeB, C, ... can know the path below - where the git-has is the
> unknown component in this case.
> To workaround the path
> ../build/tmp/>arch>/<recipe-nameA>/<tag>+gitAUTOINC+<git-hash>/git
>

Have you looked at the work-shared technique we use for the kernel
and gcc ?

Bruce



>
> I guess an DEPENDS=recipeA needs also be part of all recipes using it.
> Well, the recipes B,C,D might need to evaluate that git-hash, but I
> don't know how in a recipe.
>
> Thanks
>
>
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