[oe] [PATCH 2/2] grub: allow menu.lst to be overridden using GRUB_CONFIG_PACKAGE.

[Chris Larson]

On Thu, May 7, 2009 at 12:03 PM, Michael Smith <msmith at cbnco.com> wrote:
[snip]
> My grub_0.97.bb could reference file://some.patch in its SRC_URI and bitbake
> could look in the next COLLECTION after failing to find it in the local one.
> In fact, I wouldn't even really need a bbfile in the overlay; just having
> files/menu.lst in the overlay could be enough to replace it. I guess this
> might just require some fudging to how FILESPATH is set up in base.bbclass.

This piece is covered relatively easily by manipulating FILESPATHBASE.

> Second, if a recipe could include a recipe of the same name and let bitbake
> search for it in the next COLLECTION, overlay packages could get a lot
> smaller. Say I need to add a private patch to grub -- my overlay
> grub_0.97.bb, if I had one, could just look like this:

This piece I believe I have a solution for.  I just wrote a 15 line
.inc file that when loaded in a .conf, automatically searches any
recipe's FILESPATH for an amend.inc, and if it exists, parses that in
after the recipe itself is parsed, so you can amend the recipe with
tweaks and things at the end of the parse.  So this coupled with the
aforementioned FILESPATHBASE alterations and you should be able to
supply overlay specific changes to a recipe without having to copy the
recipe itself into the overlay.
-- 
Chris Larson
clarson at kergoth dot com
clarson at mvista dot com
Founder - BitBake, OpenEmbedded, OpenZaurus
Maintainer - Tslib
Software Engineer
MontaVista Software, Inc.