RequiredCapability does not impact the resolution algorithm per-se. It just captures the dependencies an IU has onto other things. The optional flag of a required capability is simply used by the resolver to ignore a dependency that can not be satisfied.

On 10/13/2016 11:07 AM, Mickael Istria wrote:


Hi all,

I'm trying to find possible hacks in Tycho/p2 to make Tycho able to include platform-specific features in category.xml. This usually fails during target-platform resolution, so I would like to find a way to first make Tycho much more (too) permissive by forcing all dependencies to be "optional". So I landed onto the RequiredCapability class, which describes how things are resolved. However I didn't see in this class about "optional" is defined. How is the optional behavior described at this layer of p2 API?

Thanks in advance,
--
Mickael Istria
Eclipse developer for Red Hat Developers <http://developers.redhat.com>
My blog <http://mickaelistria.wordpress.com> - My Tweets <http://twitter.com/mickaelistria>


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