[OE-core] [RFC 2/7] image.bbclass: run postinst scripts once, at rootfs time

[Laurentiu Palcu]

On 09/19/2012 06:50 PM, Burton, Ross wrote:
> On 19 September 2012 16:45, Laurentiu Palcu <laurentiu.palcu at intel.com> wrote:
>> I'm a little confused here... Technically, when the postprocess hooks
>> are executed all the postinstall scripts were already executed. Ideally,
>> the run-once scripts are created from inside the postinst scriptlets
>> themselves. So, I don't really understand why using the postprocess hook
>> isn't safe. Can you please elaborate?
> 
> My concern (and it's just a hunch) is that there could be a
> post-process hook running before the intercepts are run which could be
> expecting the post install phase to have been completed.  With
> intercepts a portion of the post-install phase is happening later than
> they previously did, so they haven't completely been ran yet.
I see your point now... The only place we could do it in image.bbclass
is immediately after rootfs_${IMAGE_PKGTYPE}_do_rootfs in do_rootfs()
function. But then we fall into the same issue you mentioned. The
post-process hooks would be executed before the intercept scripts...

The alternative would be to use the post-install hooks
(ROOTFS_POSTINSTALL_COMMAND) instead of post-process. These are executed
before the post-process hooks.

Thanks,
Laurentiu

> 
> Ross
>