On Thu, 21 Jun 2012, Ales Kozumplik wrote:
On 06/20/2012 01:04 PM, tim.lauridsen@xxxxxxxxx wrote:
Would it not be better to work with yum upstream to make the current yum
depsolver more modular so you could plugin another libsolv based
depsolver, instead of making a fork of yum and starts trashing the
current API. There is a lot more to yum, that just solving dependencies.
And making a fork there is not fully compatible will put a lot of work
on your shoulders :) without the benefit on the work done by yum
upstream :) like parallel download etc.
Tim
Hello Tim,
Be assured I am in contact with Yum developers and the new features happening
for F18 there are planned to be integrated to DNF.
The decision to fork yum into using libsolv instead of trying to evolve it
slowly was a difficult one yet it was the right one. Unified depsolving is
only a part of the project, the other primary goal is arriving at concrete,
cleaned up API for external applications and plugins. This is very hard to
get done without having free hands to refactor, remove, cleanup and change
for better testability because in Yum one always has to look behind his back
for tricky backward compatibility issues.
I think the best way to describe the "DNF" project really is as "the next-gen
yum". Departing from the old APIs is a part of it. There are little
alternatives also: the gradual deprecation of some of the Yum's legacy
interfaces hasn't been very successful in the past. Or I could keep DNF under
the lid for another one or two Fedora releases, but I find it a better
alternative to package this early version: both for those Fedora users who
will bravely try it (and hopefully report feedback) and the community members
who might join the effort.
Ales,
Tim _IS_ a yum developer. That he felt surprised by this means you've
only been communicating with yum devs on the internal red hat packaging
team not in the community channels related to yum specifically. It would
make good sense if you want to figure out what apis are important/matter
to discuss this on the yum-devel mailing list at the very least.
I think it would help everyone if the packaging team was a little more
outward interacting than it is currently.
Not with just a read-only blurb to the fedora features list but discussing
DNF with other folks who are explicitly in yum development.
Thanks,
-sv
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