Re: Why lastrite when it works? (Was: Re: [gentoo-dev] Packages up for grabs due to retirement)

[Sam Jorna <wraeth@gentoo.org>]

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On Tue, Jan 17, 2017 at 04:45:39AM -0800, Daniel Campbell wrote:
> On 01/06/2017 12:46 PM, William L. Thomson Jr. wrote:
> > On Friday, January 6, 2017 9:14:54 AM EST Alec Warner wrote:
> >>
> >> The nice thing about ::graveyard or similar is that its a clear demarcation
> >> between maintained (in tree) and unmaintained (graveyard.) It also means
> >> that people doing actual maintenance work can basically ignore the
> >> graveyard as a matter of policy. The ebuilds are archived there (for users)
> >> but since they are unmaintained they may not work correctly.
> > 
> > This is what the Java team used to do. There was a java-graveyard-overlay. I 
> > do not believe any package ever moved there came back into the tree. It did 
> > result in a pretty messed up overlay, but makes it a user problem.
> > 
> > At the same time, something could always be restored from VC. Not like removal 
> > is removing all history and traces. Thus not sure such overlay is really even 
> > beneficial. Using it could cause lots of problems if they just care about 1 
> > package or a few.
> > 
> 
> There's a nice trick around that, actually: let's assume the overlay is
> called "foo-overlay".
> 
> In package.mask:
> 
>     */*::foo-overlay
> 
> will mask all packages in the overlay. You can then add packages to
> package.unmask:
> 
>     pkg-cat/foobar::foo-overlay
> 
> That should alleviate most issues, though it can make dependencies a
> PITA if those deps are also in the overlay. In that case, emerge should
> yell at you and suggest adding lines to package.unmask.

Another option would be to set the priority of the overlay to -1001 (one
less than gentoo.git) and explicitly emerge the package from the
overlay:

emerge -a pkg-cat/foobar::foo-overlay

Dependencies will by default be drawn from gentoo.git (if it has equal
or better version(s)), and overlay-only dependencies won't need to be
explicitly unmasked.

You may end up with gentoo.git-provided packages coming from the overlay
if they have newer versions, though when talking about graveyard, that
shouldn't be an issue.

-- 
Sam Jorna (wraeth)
GPG ID: 0xD6180C26


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