On 14-04-2007 01:19:41 -0700, Robin H. Johnson wrote:
> On Sat, Apr 14, 2007 at 07:32:12AM +0100, Steve Long wrote:
> > Fabian Groffen wrote:
> > > This GLEP has been laying around for some long time now in my gleps dir.
> > > I nearly forgot about it. Anyway, feedback is appreciated.
>
> <list-admin-hat>
> Grobian: can you please resend your message to the list?
Because I don't have it either, luckily there is GMane:
http://thread.gmane.org/gmane.linux.gentoo.devel/48017
For ease of readers, some copy & paste:
For people that like reading it in html or via the web:
http://dev.gentoo.org/~grobian/gleps/glep-keywords.html
http://dev.gentoo.org/~grobian/gleps/glep-keywords.txt
--
Fabian Groffen
Gentoo on a different level
GLEP: XXX2
Title: Keywording scheme
Version: $Revision: 1.8 $
Last-Modified: $Date: 2007/04/13 17:26:35 $
Author: Diego Pettenò <[EMAIL PROTECTED]>, Fabian Groffen <[EMAIL PROTECTED]>
Status: Active
Type: Standards Track
Content-Type: text/x-rst
Created: 11-Dec-2005
Post-History: 13-Apr-2007
Abstract
========
This GLEP is a replacement of the keywording scheme from GLEP 22
[#GLEP22]_. The current use of keywords is retained in favour of
4-tuple keywords. This GLEP defines how current keywords are to be
interpreted, and how future keywords should be constructed.
Motivation
==========
Although the state of GLEP 22 [#GLEP22]_ is final, its keywording scheme
was never propagated through the tree. In fact, 4-tuple keywords are
not used at all. This GLEP defines a keywording scheme that is
compatible with the scheme that is currently in use.
Rationale
=========
The Gentoo/Alt project deals with different Operating Systems and
architectures. Recently Gentoo/FreeBSD for Sparc was introduced after
support for x86 platforms. This yielded in another new keyword.
For these kind of platforms, a single field keyword is not enough to
properly describe the OS and architecture. While four fields in a
keyword are overkill, two fields in a keyword should be enough for
everyone.
Backwards Compatibility
=======================
The proposed keywording scheme is fully compatible with the current
situation of the portage tree, this in contrast to GLEP 22. The
variables provided by GLEP 22 can't be extracted from the new keyword,
but since GLEP 22-style keywords aren't in the tree at the moment, that
is not a problem. The same information can be extracted from the
``CHOST`` variable, if necessary. No modifications to ebuilds will have
to be made.
Specification
=============
Keywords will consist out of two parts separated by a hyphen (``-``).
The left hand part of the keyword is the architecture, such as `x86`,
`sparc` or `ppc`. The right hand part indicates the operating system or
distribution, such as `linux`, `macos`, `solaris` or `fbsd`. If the
right hand part is omitted, it implies the operating system/distribution
type is GNU/Linux. In such case the hyphen is also omitted. Examples
of such keywords are ``x86`` and ``sparc-fbsd``. This is fully
compatible with the current keywords used in the tree. Examples of
OS/distributions for the right hand side of the keyword are:
::
(linux) GNU/Linux (Gentoo biased, but not fixed)
fbsd FreeBSD
macos Apple Mac OS
solaris Sun Solaris
Both architecture as well as OS/distribution are lower-case ASCII
(alpha) numeric character sequences. A valid keyword matches the
following expression:
``[a-z0-9]+(-[a-z0-9]+)?``
Note that no limit on the length of both fields in the keyword are
imposed. However, we cannot overemphasize our preference to keep
keywords small and sensible.
.. [#GLEP22] GLEP 22, New "keyword" system to incorporate various
userlands/kernels/archs, Goodyear,
(http://glep.gentoo.org/glep-0022.html)
Copyright
=========
This document has been placed in the public domain.
