From patchwork Sat May 9 10:43:07 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dawid Bijak X-Patchwork-Id: 87794 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25FD9CD3447 for ; Sat, 9 May 2026 10:44:14 +0000 (UTC) Received: from mail-wm1-f50.google.com (mail-wm1-f50.google.com [209.85.128.50]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.9805.1778323450838344576 for ; Sat, 09 May 2026 03:44:11 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@gmail.com header.s=20251104 header.b=aivqa6uV; spf=pass (domain: gmail.com, ip: 209.85.128.50, mailfrom: bijak.dawid@gmail.com) Received: by mail-wm1-f50.google.com with SMTP id 5b1f17b1804b1-48a563e4ef7so25038825e9.0 for ; Sat, 09 May 2026 03:44:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1778323449; x=1778928249; darn=lists.yoctoproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ei4+RvsXLWf6gFAPT9tu8Ww+AIZFSgxkmkl7zyQX4q4=; b=aivqa6uV6mTMAF6abhML+idmWoKfGvaNTgy2+orizDjqsUgMJokwFXylqgNV02gIXT nq+7nIzGe7nj4+JxrWFPMg6l/LYVYPF7SXcFCPUK1Q1i4hEFy8W8DKVtPhB4RgKupxb2 5X6AVQZ5EXJzdompGYDOxrgjm8a/ao8SWlTsEj7jR6wuuusXKxFkEBBwCOU2/QdkLB4R c7COc8rJr4jRTERh5yZ9wynxrT6whVQqfpiX87/Uu0Czu/rMNkNO991dCDPCNYSRMkcn bUW39dC79qRA6IV562n7yKymDWmQ4D7qNnDvdpquGTJaOqGM21zOodgBNjePvcKj9LC9 oWRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778323449; x=1778928249; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=ei4+RvsXLWf6gFAPT9tu8Ww+AIZFSgxkmkl7zyQX4q4=; b=T6IQI4EH08a6LnJmwhON9bp9R1LwFam911Obu3/u+xmtiSDhoMDnnEInrgXW3f0z+o UeuhvG1apBwOMcHR2pUKm3gmnf8bZHJG31r3eC8kP8NF21/4fqP78iAKr3l81Eyi+EvT Cm2EBONZW7pWxRZ8B5D9WG1a8Ua7rM5QQbVOQ1IxtX2FfXPpBeA9XRwbLqhm4dtcKSLL fjomDSOgTvlv96k2+mAY4D194i55SuDjvkPFRTdU9L2FYd0kUb6GdVIm1Pv/t2WouibU 4dSFRVr03lcD+GwIYlwoL+EURr9RH1Ea4M82bc76Dls+1nG/zJMNWaqbAVb+yCPNrqbn bHgg== X-Gm-Message-State: AOJu0YwCetPEascVt0H2uPH9e6NSvKGfYRgvaDz8RadCdkxmTEaWJxDi LUkEUyn/X0NlkXlq5DeCIK+0h83El9lsnBPTBros38zHRq4s3+kJgHrY X-Gm-Gg: Acq92OH+GSKdWW3idm+BvwctSIb/EfsjHDFdgG1sC+5jzB9Ov3VwiTYVAfR4KEgJDdf jDRzRnEfvFGNpxpgx/4Tsmbu2/45tu/7wSggyOHJQ+rO3+yo3P6Fid+NK5SLZA8fTptwacSSXo+ f6y4uizMeyxTA9lcvK4hsdeHr97i9aaJxxIfUiB1FyGpfdFSXU7poafp2lABJKTSr7LJPXIcS8c mm4OB3BomzbK7HAXWnhuTkXi1lSs1+axyPwmPLDTa0aLo8+gyVGtdgQ7ABGSgVSnS27hiykBDb6 06j+GFHmtSHy4njH989ncp0LYln5z6Mt6bg7ZqCMxplc6QPzMLOZ30LNwq4JZc5K6g3z36dkZ44 pDC1Vq3+Aiveo/KeWC368M4SrIH/OvwfBtYvO9UJh6XUdxhV/0vo67wnU6MXv/u4eV29FNcbDjA Fi/i05e1250AnpwAxlTtc0yk9J/WNq6MMR7AQJihRoh8nDAQ89QkkGHwsk9JEz1VHprWL3i7HBB mkMup3pDw8vPEJy3o4u9H6n6Ez+7LCIyGiEHg3WhQn0rvWixgZuCGcDCjYzc8Sl8A== X-Received: by 2002:a05:600c:630c:b0:48e:6275:27e1 with SMTP id 5b1f17b1804b1-48e6275282fmr141690905e9.26.1778323449176; Sat, 09 May 2026 03:44:09 -0700 (PDT) Received: from localhost.localdomain ([2a02:8070:d188:380:b100:f430:86bd:b50]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-48e6d895781sm38837255e9.0.2026.05.09.03.44.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 09 May 2026 03:44:08 -0700 (PDT) From: Dawid Bijak To: bitbake-devel@lists.openembedded.org Cc: docs@lists.yoctoproject.org, quentin.schulz@cherry.de, richard.purdie@linuxfoundation.org, Dawid Bijak Subject: [PATCH v3 3/3] doc: bitbake-user-manual-metadata: explain inherit_defer example Date: Sat, 9 May 2026 12:43:07 +0200 Message-ID: <20260509104307.26698-4-bijak.dawid@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20260509104307.26698-1-bijak.dawid@gmail.com> References: <20260509104307.26698-1-bijak.dawid@gmail.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Sat, 09 May 2026 10:44:14 -0000 X-Groupsio-URL: https://lists.yoctoproject.org/g/docs/message/9425 Add a short paragraph describing how the inherit_defer makes use of override syntax to achieve conditional inheritance, and rename VARNAME to VARIABLE to assure consistent naming throughout the documentation. Signed-off-by: Dawid Bijak --- doc/bitbake-user-manual/bitbake-user-manual-metadata.rst | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst b/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst index 52a9e7fa7..59216f69a 100644 --- a/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst +++ b/doc/bitbake-user-manual/bitbake-user-manual-metadata.rst @@ -827,7 +827,7 @@ the variable after the line is parsed will take effect. With the :ref:`inherit Here is an example:: - inherit_defer ${VARNAME} + inherit_defer ${VARIABLE} One way to achieve a conditional inherit in this case is to use overrides:: @@ -835,6 +835,11 @@ overrides:: VARIABLE = "" VARIABLE:someoverride = "myclass" +:ref:`inherit_defer ` +defers the evaluation of ``${VARIABLE}`` until the end of +parsing. Assuming ``someoverride`` is in :term:`OVERRIDES`, ``${VARIABLE}`` +expands to ``myclass``, which is then inherited. + Alternatively, you could use an inline Python expression in the following form::