[OE-core] [PATCH RFC] pixbufcache: Use sceneQueueComplete event to simplify usage

[Jacob Kroon]

On Sat, Aug 2, 2014 at 10:54 AM, Richard Purdie <
richard.purdie at linuxfoundation.org> wrote:

> [This is an RFC which depends on a patch to bitbake to operate]
>
> Currently, we have a mess of dependencies for pixbufcache and even then
> it breaks since they might be controlled by PACKAGECONFIG.
>
> Instead, this patch proposes an alternative approach where we allow
> "fixups" from a sceneQueueComplete() event at the end of the setscene
> process. We signal the need for these using simply stamp files.
>
> The one downside is that the processing code needs to be in a global
> event handler like base.bbclass rather than pixbufcache.bbclass but this
> is probably a price worth paying to avoid the dependency mess?
>
> Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
>
>
Instead of having the sstate_postinst() touch "needpixbuf", could we make
it write out the actual script that needs to be executed ?
Then base.bbclass could iterate over any scripts installed by any
sstate_postinst() and execute them. At least this would better isolate the
pixbuf-code to pixbufcache.bbclass, and make the snippet in base.bbclass
more generic.
/Jacob
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