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Date: Wed, 9 Nov 2011 18:09:37 +0100
From: Michael Olbrich <m.olbrich@pengutronix.de>
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Subject: Re: [ptxdist] installing different config files for lighttpd
 depending on some config variable
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On Wed, Nov 09, 2011 at 01:26:48PM +0100, Alexander Dahl wrote:
> we build or BSP in different configurations depending on some options
> in the menuconfig, see:
> =

>     choice
>         prompt "Vendor name     "
> =

>         config VENDOR_FOO
>             bool
>             prompt "foo"
> =

>         config VENDOR_BAR
>             bool
>             prompt "bar"
> =

>         config VENDOR_BAZ
>             bool
>             prompt "baz"
> =

>     endchoice
> =

> This is evaluated in several rules and in combination with collections
> works quite well. In all configurations we use lighttpd as webserver,
> previously with equal lighttpd.conf, but now we need different webserver
> configs for each vendor/collection.
> =

> I could copy the rules/lighttpd.make from ptxdist distribution to our
> BSP now and adapt it, but this would require manual attention on merging
> both with each migration to a new ptxdist release and I'd like to avoid
> that. =

> =

> I came across the possibility of postinst/preinst scripts in
> targetinstall stage and assume I could use this. A preinst script would
> populate projectroot/etc/lighttpd/lighttpd.conf with the right config
> just before install_alternative() is called inside the distributed rule.
> =

> If this is a reasonable idea, where do I find documentation to these
> preinst/postinst stuff? The =BBDon't Panic=AB guide doesn't cover this
> topic. :-/

Thre pre-/postinst scripts are run when installing the ipkg, not before
targetistall.
It't not very nice but what about this:

-------- /etc/lighttpd/lighttpd.conf -----------
include "real-lighttpd.conf"
------------------------------------------------

and install real-lighttpd.conf in a local package depending on VENDOR_*

Michael

-- =

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