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Re: [tycho-dev] [discuss] tycho repository layout and metadata format

We need to know if *future* repository content changes can affect
resolution results. This I believe boils down to being able to tell if
IMatchExpression<IInstallableUnit> is guaranteed to match one and only
one installable unit or not. And even this may not be enough to handle
optional requirements.


On 11-06-01 10:39 AM, Sievers, Jan wrote:

Heh. This was exactly my plan when I started to integrate p2 into
tycho few years back. I actually had working prototype that took
top-level features, calculated resolved dependency set and reported
on loose IUs. There was also a way to provide additional resolution
constrains to further lock down the resolution. I think this is the
right approach, but as I mentioned earlier, I am not positive this
is possible to implement in p2 3.6+.

Hmm. I am not sure myself but Tobias told me this is related to
slicer mode.

What I understood is that in planner mode you can get those
"dangling" requirements (required but not included, and thus possibly
with version ranges), whereas in slicer mode you only get the
(transitively) included bundles, and these always have perfect
version matches.

Maybe Tobias can comment?

Regards, Jan

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