Re: [gentoo-portage-dev] [PATCH] --config-root command-line option

[Daniel Barkalow]

On Fri, 17 Nov 2006, Marius Mauch wrote:

> I prefer to have one way to do things, and the system for variables
> worked quite well so far. Adding CLI overrides on top of that seems not
> only redundant to me but also potentially confusing (which vars have CLI
> overrides? where in the incremental stack does the override fit in?).
> Add that to the already overloaded option system.

This particular option clearly can't participate in the incremental stack 
at all, because it controls which set of config files you read the entire 
incremental stack out of. So that's not an issue.

> Besides, if you need this feature on a somewhat regular base it seems
> easier to me to just export the var once instead of specifying the
> option on the command line all the time (ok, using DEFAULT_OPTS avoids
> that, but then you have the same issues you listed above).

config_root is useful primarily when there are multiple configurations 
that you use. Exporting it in your environment would be profoundly 
confusing, because then you have different shells that build the same 
packages differently, with no indication of what's going on. You'd surely 
end up installing qtopia on your workstation or firefox on your pda.

To update your workstation you do:
% emerge -pvutDN world

To update your pda disk image you do:
% emerge --config-root=/etc/pda -pvutDN world

	-Daniel
*This .sig left intentionally blank*
-- 
gentoo-portage-dev@g.o mailing list