[OE-core] [PATCH] packagegroup: Add init-manager sanity check

[Enrico Scholz]

Richard Purdie <richard.purdie at linuxfoundation.org> writes:

>> no; the 'parsing recipes' phase throws an exceptions
>> 
>> | ERROR: Please ensure that your setting of
>> | VIRTUAL-RUNTIME_init_manager (sysvinit) matches the entries
>> | enabled in DISTRO_FEATURES## | ETA: 00:00:14
>> | ERROR: Unable to parse
>> | /srv/oe/dev/org.openembedded.core/meta/recipes-extended/packagegroups/packagegroup-core-basic.bb:
>> | Exited with "1"
>> | ERROR: Command execution failed: Exited with 1
>> 
>> 
>> Of course, I can BBMASK out these packagegroup-core recipes or simply
>> define VIRTUAL-RUNTIME_init_manager.
>
> Hmm, I understand now.
>
> The way I see this is that the system can't know if anything in your
> environment is going to use packagegroup-* or not.

Exactly; at this stage, the system does not known whether
VIRTUAL-RUNTIME_init_manager will ever be used and should not check it
there hence.


> Given that, I do think this is a valid warning

It's not a warning, but an error stopping the build


>> > Other proposals for solutions are welcome. I thought it better to
>> > catch a common user misconfiguration than generate broken images
>> > silently though.
>> 
>> You can put this check into e.g. do_configure[prefuncs].
>
> So it errors at build time some time later? Where we can is it not
> better to inform the user of configuration issues earlier?

The differrence is that the anonymous python function fails regardless
whether VIRTUAL-RUNTIME_init_manager is used or not (and can not cause
problems hence).

The check in do_configure() will fail only, when it is really used.

I know that the check in the anonymous python function is executed very
early while the do_configure() check might trigger hours later.  I do
not know whether such early warnings are really important; perhaps my
initial

| DEPENDS += "${@some_check(d)}"

suggestion could be enhanced so that some_check() throws an exception
and puts a note like the actual one.


Enrico