Gentoo Archives: gentoo-portage-dev

From: Brian Harring <ferringb@×××××.com>
To: gentoo-portage-dev@l.g.o
Subject: Re: [gentoo-portage-dev] Moving ebuild-related where they belong
Date: Thu, 07 Sep 2006 16:45:23
Message-Id: 20060907164305.GC31255@seldon
In Reply to: Re: [gentoo-portage-dev] Moving ebuild-related where they belong by Zac Medico
1 On Thu, Sep 07, 2006 at 09:32:04AM -0700, Zac Medico wrote:
2 > Simon Stelling wrote:
3 > > repo-level profile, we move parts of the EAPI out into the tree, which
4 > > is a bad idea because we are unable to support multiple versions. As the
5 > > EAPI needed for the ebuild is unknown when sourcing
6 > > install-helpers.eclass, we're actually forced into using that one and
7 > > only version, which is quite limiting.
8 >
9 > Well, if the metadata generation step is viewed as being separate from the rest,
10 > and the helpers aren't needed during that step, then it's possible to get the
11 > EAPI from the ebuild without the helpers being in the environment. Once the
12 > EAPI is known, the package manager can use that to determine what else (if
13 > anthing) needs to be added to the environment. Then you'd only need a way to
14 > tell the package manager which EAPI levels the functions in your
15 > install-helpers.eclass (or whatever) apply to.
16 >
17 > > So, the correct way to do it is to define an EAPI=1 that does no longer
18 > > include these helper functions and make the eclasses/ebuilds that use it
19 > > inherit the eclass manually. However, this will need to run through -dev
20 > > and I'm afraid the ebuild devs wouldn't like it at all :-/
21 >
22 > They won't like it because it's expected that EAPI will provide the necessary
23 > information. Why should they have to inherit some special eclass if it's
24 > already implied by the EAPI that they've specified?
25
26 Blubb left out the real kicker.
27
28 Make this change, and it means that all overlays that can function as
29 standalone, must bundle the eapi helpers themselves.
30
31 This is ignoring the potential fun of an overlay that redefines an
32 eapi locked function.
33
34 Understand initial intention of wanting to make the scripts usable by
35 all pkg managers (pushed this myself shortly after I became a portage
36 dev), but the
37 A) requirement of trying to keep helper functionality exactly in sync
38 per tree,
39 B) fragmentation this implicitly enables
40 isn't good.
41 ~harring

Replies

Subject Author
Re: [gentoo-portage-dev] Moving ebuild-related where they belong Simon Stelling <blubb@g.o>