[RFC]: Drop support for Compiz in KDecoration

[Martin Gräßlin]

On Friday 15 March 2013 16:15:58 Sebastian Kügler wrote:
> On Friday, March 15, 2013 14:38:45 Martin Gräßlin wrote:
> > this is a small request for comments where I would like to get some
> > comments  for. That is I don't want to go ahead without consensus.
> > 
> > Since [1] KWin has the internal KDecorationBridge as a public part of the
> > KDecoration API to allow Compiz to implement it. This is rather
> > unfortunate
> > as  it makes our life more difficult as we cannot extend our internal API
> > without doing subclassing and all that effort (see for example [2]).
> > 
> > Given that it seems like nobody is still using Compiz instead of KWin I do
> > not  see why we should continue to support it. Therefore I want to request
> > to make KDecorationBridge private again by unexporting the header file. If
> > we agree on that I'm going to inform kde-packagers about it, so that they
> > can conflict the 4.10 package with compiz-kde.
> > 
> > To back my claim I checked various distributions:
> > * Ubuntu is not shipping kde-window-decorator in compiz-kde since precise
> > and  doesn't ship compiz-kde since quantal [3]
> > * Arch is shipping an outdated version in the community repo [4]
> > * openSUSE is shipping an outdated version [5]
> > * Gentoo is shipping an outdated version which is patched for 4.10 [6]
> > * Fedora is shipping an outdated Compiz version, but seems to not ship
> > compiz- kde [7]
> > * Mageia is shipping an up to date version of Compiz (!), whether it
> > includes  compiz-kde I couldn't figure out [8]
> > 
> > In all cases where I wrote outdated version it is the 0.8 branch of
> > compiz,
> > while Canonical is at 0.9.
> > 
> > If Compiz still wants to support our decorations (which I doubt, though
> > support for appmenu got added end of last year) they would only need to
> > fork  the header file and ensure by themselves that it works correctly.
> 
> Maybe interesting to know: Did you get any bugreports regarding use of
> compiz in Plasma Desktop lately?
No, which is a strong sign that it is no longer used given bug 143419.
> And: Compiz is dead upstream, isn't it?
For certain definitions of dead: yeah. Compiz has turned into an in-house 
product of Canoncial for Unity. That's to my knowledge the reason why most 
distros are still on 0.8 if they include it at all. This branch is quite dead. 
The Compiz 0.9 branch seems to be actively maintained given the history on 
launchpad [1]. But as outlined in the summary above only Mageia is shipping 
this branch apart from Ubuntu.
--
Martin Gräßlin

[1] https://code.launchpad.net/~compiz-team/compiz/0.9.9
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