<div dir="ltr"><div class="gmail_default" style="font-family:times new roman,serif;font-size:large"><span style="font-family:arial,sans-serif;font-size:small">On Tue, Jul 28, 2015 at 5:37 AM, Florian Festi </span><span dir="ltr" style="font-family:arial,sans-serif;font-size:small"><<a href="mailto:ffesti@redhat.com" target="_blank">ffesti@redhat.com</a>></span><span style="font-family:arial,sans-serif;font-size:small"> wrote:</span><br></div><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 07/28/2015 09:43 AM, Lubos Kardos wrote:<br>
> Support in rpm is not enough but libsolv supports rich deps since the version<br>
> 0.6.9 too thus rich deps work also in hawkey and dnf if the version 0.6.9 or<br>
> a newer version of libsolv is installed.<br>
<br>
</span>Right now only AND and OR is supported by libsolv. Implementation of IF<br>
ELSE is still pending.<br>
<br>
Also we still need to settle to a final syntax for the operators [1].<br>
Unfortunately there is no consensus among the other packaging formats<br>
what to use. Right now rpm accepts 3 different styles:<br>
* AND OR IF ELSE<br>
* & | ? :<br>
* && || ? :<br>
But the final release will only support on of them. As soon as the alpha<br>
stops eating babies that's a discussion we need to have.<br>
<br>
So for now they are more a tech preview in Fedora but we want to get<br>
them operational til the release. This still means that they are not<br>
supposed to be used in F23 as they may only completely work very late.<br>
Also there is still a lot of paper work to do for the packaging policy.<br>
<br>
I expect that both Boolean Deps and File Triggers won't be introduced in<br>
one go but there will be multiple Fedora Features introducing them one<br>
use case at a time. E.g. one feature per file trigger replacing one kind<br>
of scriptlets. Boolean dependencies being used for language packs being<br>
one Feature/Package Policy section and other use cases being others.<br>
<br>
This may start in the F24 time frame - especially for some urgent corner<br>
cases - but my guess is that this will rather take multiple releases.<br>
<br>
Florian<br>
<br>
[1] <a href="http://rpm.org/wiki/PackagerDocs/BooleanDependencies" rel="noreferrer" target="_blank">http://rpm.org/wiki/PackagerDocs/BooleanDependencies</a><br>
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