Re: [BuildStream] How to synchronize nested junctions

[Chandan Singh <chandan chandansingh net>]

Hi Tristan,

>     "BuildStream uses the junction element name as key to determine
>      which junctions to merge. It is recommended that the name of a
>      junction is set to the same as the name of the linked project."
>
> I realize that this is really not an obvious thing to realize in
> practice, maybe we need better messaging around this (and maybe there
> are still edge cases around this which don't work perfectly and
> conveniently ?).
>
> Maybe even some enhancements are possible around here, I am skeptical
> about having recursive junction lookups; when the end project wants to
> address sub-sub project elements, there is already the option of
> including a matching junction to the sub-sub project in the calling
> project, using a matching junction element name.
>
> Before considering further enhancements, I just wanted to point out the
> current, existing solution for this.

I agree that we should try the existing solutions before considering
further enhancements, but I am not sure if we have any existing
solutions for the use-case that I mentioned. Having a junction
matching to the sub-sub-project is what we have now, but it requires
them to be kept in sync. Is there a trick I am missing here? Because I
don't see a way around keeping the two junctions in sync, without
enforcing that as an external process.

Cheers,
Chandan