RE: [bitbake-devel] conditional inheriting classes does not work with bbappends

[Peter Kjellerstedt <peter.kjellerstedt@axis.com>]

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Yes, require is evaluated immediately, just like inherit, so unfortunately the suggested example below doesn’t solve the problem either.

//Peter

From: bitbake-devel@lists.openembedded.org <bitbake-devel@lists.openembedded.org> On Behalf Of Jose Quaresma
Sent: den 13 april 2022 12:25
To: Christopher Larson <kergoth@gmail.com>
Cc: bitbake-devel@lists.openembedded.org; Christian Eggers <ceggers@arri.de>
Subject: Re: [bitbake-devel] conditional inheriting classes does not work with bbappends

Hi

Christopher Larson <kergoth@gmail.com<mailto:kergoth@gmail.com>> escreveu no dia quinta, 7/04/2022 à(s) 22:59:
There’s no way to avoid that, inherit lines are evaluated *at the moment of inherit* on that line, they aren’t postponed.

Does the require have the same behaviour as the inherit? i.e: evaluated *at the moment of inherit*
if not something like that can do the job:

cat <<'EOF' > my.bbappend
PACKAGECONFIG ?= "my-knob"
require ${@bb.utils.contains('PACKAGECONFIG<mailto:$%7b@bb.utils.contains('PACKAGECONFIG>', 'my-knob', 'my-conditional-inheriting.inc', '', d)}
EOF

cat <<'EOF' >my-conditional-inheriting.inc
inherit my.bbclass
EOF


Jose


--
Christopher Larson
chris_larson@mentor.com<mailto:chris_larson@mentor.com>, chris.larson@siemens.com<mailto:chris.larson@siemens.com>, kergoth@gmail.com<mailto:kergoth@gmail.com>
Principal Software Engineer, Embedded Linux Solutions, Siemens Digital Industries Software
On Apr 7, 2022, 7:17 AM -0700, Christian Eggers <ceggers@arri.de<mailto:ceggers@arri.de>>, wrote:

Example: meta-openembedded/meta-networking/recipes-support/chrony/chrony_4.2.bb<http://chrony_4.2.bb>

--------------------------------8<--------------------------------
# Add chronyd user if privdrop packageconfig is selected
inherit ${@bb.utils.contains('PACKAGECONFIG<mailto:$%7b@bb.utils.contains('PACKAGECONFIG>', 'privdrop', 'useradd', '', d)}
USERADD_PACKAGES = "${@bb.utils.contains('PACKAGECONFIG', 'privdrop', '${PN}', '', d)}<mailto:$%7b@bb.utils.contains('PACKAGECONFIG',%20'privdrop',%20'$%7bPN%7d',%20'',%20d)%7d>"
USERADD_PARAM:${PN} += "${@bb.utils.contains('PACKAGECONFIG', 'privdrop', '--system -d / -M --shell /bin/nologin chronyd;', '', d)}<mailto:$%7b@bb.utils.contains('PACKAGECONFIG',%20'privdrop',%20'--system%20-d%20/%20-M%20--shell%20/bin/nologin%20chronyd;',%20'',%20d)%7d>"

...

PACKAGECONFIG ??= ...
-------------------------------->8--------------------------------


Problem #1: useradd is not inherited because PACKAGECONFIG is set below the conditional "inherit"
statement. Even when I add "privdrop" to PACKAGECONFIG here, useradd.bbclass is not inherited. I
must move the PACKAGECONFIG line above the inherit statement to make this work.

Problem #2: Due to problem #1, useradd.bbclass is also not inherited when I add "privdrop" to
PACKAGECONFIG in bbappend file (in a custom layer).

regards
Christian



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--
Best regards,

José Quaresma

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