GLEP:40
Title:Standardizing "arch" keywording across all archs.
Version:1.1
Last-Modified:2005/09/09 03:06:28
Author:Grant Goodyear <g2boojum at gentoo.org>
Status:Draft
Type:Standards Track
Content-Type:text/x-rst
Created:3-Sep-2005
Post-History:6-Sep-2005

Contents

Credits

This GLEP originated from a rather contentious discussion [1] on gentoo-dev about combining the x86 and amd64 keywords. This GLEP attempts to get at the heart of that discontent. The proposed stable-keyword guidelines have been lifted verbatim from The Doc [2].

Abstract

It is time for x86 to no longer be an exception to the standard keywording guidelines. Thus, an x86 arch team should be responsible for moving packages from ~x86 to x86.

Motivation

The original, informal x86 keywording policy, where almost any x86 dev (which were the vast majority of devs) who used a package could mark it stable, arose from a time when there were relatively few Gentoo devs. Adding packages to the tree was the principal concern, as opposed to maintaining existing packages. QA considerations have since modified that policy slightly, and now it is the package maintainers who should mark an x86 package stable. Of course, that policy presumes that package maintainers are generally x86 devs, which is slowly becoming less and less true.

This policy for x86 is quite different from how every other arch marks packages stable. For the non-x86 archs, each arch has a specific "arch team" which is responsible for moving packages from ~arch to arch, although vapier notes that "arch teams generally defer to maintainers (and rightly so) as to when newer versions should go stable." This approach has worked quite well for the non-x86 archs, and this GLEP asserts that the same approach would benefit x86 as well.

Specification

Stabling guidelines for all archs

For a package to move to stable, the following guidelines must be met:

x86 arch team

A robust x86 arch team needs to be created. The x86@gentoo.org alias already exists, and it merely needs to be used. This team, with the aid of potential non-dev arch testers, has the responsibility of stabling all x86 packages. Current x86 devs who wish to mark their own packages stable must therefore either be members of or make individual arrangements with the x86 arch team.

Rationale

There will be a considerable one-time cost involved in establishing a robust x86 arch team--a good number of bodies (the amd64 atch team has 19 active devs and 12 active non-dev arch testers) need to be recruited to be part of the new arch team, and convincing devs that it is in their best interests to work in a new fashion is likely to be even harder. Certainly the benefit of consistency between the various archs is obvious, but is it worth the cost involved? Here are the arguments for enduring the pain involved:

Implementation

Creation of a robust x86 team is already underway. The more vital step is the official change in policy, along with a sustained effort to get existing x86 devs to go along with it.

Alternative Ideas

Stuart [4] has suggested the creation of a new arch keyword: "[-]maint", which would exist in tandem with the normal arch keywords, thereby making the package maintainer's intention explicit. Ciaranm has responded that by definition a package in ~arch is a candidate for arch, so a package's mere presence in the tree (without being in package.mask) should indicate the package maintainer's intention. There was a fair bit of discussion about whether the idea should be a "maint" keyword, or named something else, or an entirely different variable, etcetera, but the basic gist didn't change much.

Jstubbs notes that it could be a very good idea if all non-arch devs worked in overlays, but that new portage (gensync) support would be needed to make it truly viable. Stuart pointed out that php5 support was handled just that way. One author's view is that this approach would make the "package in ~arch means that it's a de-facto candidate for arch" interpretation even more valid.

Ciaranm and weeve have noted that it is occasionally necessary for arch teams to override a package maintainer when it comes to stabling a package. Stuart has asserted that in those cases the arch team should be willing to take on the support burden for that package.

Backwards Compatibility

Not really an issue here.

References

[1]http://tinyurl.com/bp859
[2]http://dev.gentoo.org/~plasmaroo/devmanual
[3]http://thread.gmane.org/gmane.linux.gentoo.devel/30369
[4]http://thread.gmane.org/gmane.linux.gentoo.devel/31060