Re: [PATCH v2] kbuild: control extra pacman packages with PACMAN_EXTRAPACKAGES

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On Wed, Aug 7, 2024 at 11:28 AM Jose Fernandez <jose.fernandez@xxxxxxxxx> wrote:
>
> Introduce a new variable, PACMAN_EXTRAPACKAGES, in the Makefile.package
> to control the creation of additional packages by the pacman-pkg target.
>
> The headers and api-headers packages will be included by default if
> PACMAN_EXTRAPACKAGES is not set. This changes the previous behavior
> where api-headers was always included, and headers was conditionally
> included if CONFIG_MODULES=y. Now, this decision is delegated to the
> user.
>
> To disable extra packages, set PACMAN_EXTRAPACKAGES to an empty value:
>
> make pacman-pkg PACMAN_EXTRAPACKAGES=
>
> or
>
> make pacman-pkg PACMAN_EXTRAPACKAGES=""
>
> Signed-off-by: Jose Fernandez <jose.fernandez@xxxxxxxxx>
> Reviewed-by: Peter Jung <ptr1337@xxxxxxxxxxx>
> ---
> v1 -> v2: Build all extra packages by default. Remove unnecessary lines.


I see only the main package built by default.




>
> In a previous patch, there was concern that adding a new debug package
> would increase the package time. To address this concern and provide
> more flexibility, this change has been added to allow users to decide
> which extra packages to include before introducing an optional debug
> package [1].
>
> [1] https://lore.kernel.org/lkml/20240801192008.GA3923315@thelio-3990X/T/
>
>  scripts/Makefile.package |  2 ++
>  scripts/package/PKGBUILD | 11 +++++++----
>  2 files changed, 9 insertions(+), 4 deletions(-)
>
> diff --git a/scripts/Makefile.package b/scripts/Makefile.package
> index 4a80584ec771..ccdf8ba41f0b 100644
> --- a/scripts/Makefile.package
> +++ b/scripts/Makefile.package
> @@ -144,6 +144,8 @@ snap-pkg:
>  # pacman-pkg
>  # ---------------------------------------------------------------------------
>
> +PACMAN_EXTRAPACKAGES ?= headers api-headers

Meaningless line.


Since 'export' is missing,
this default line is not propagated to PKGBUILD.


Nathan also mentioned 'export' would be needed if you wanted to
describe this here.

https://lore.kernel.org/linux-kbuild/20240806025853.GB1570554@thelio-3990X/




> +
>  PHONY += pacman-pkg
>  pacman-pkg:
>         @ln -srf $(srctree)/scripts/package/PKGBUILD $(objtree)/PKGBUILD
> diff --git a/scripts/package/PKGBUILD b/scripts/package/PKGBUILD
> index 663ce300dd06..8de869f9b1d4 100644
> --- a/scripts/package/PKGBUILD
> +++ b/scripts/package/PKGBUILD
> @@ -3,10 +3,13 @@
>  # Contributor: Jan Alexander Steffens (heftig) <heftig@xxxxxxxxxxxxx>
>
>  pkgbase=${PACMAN_PKGBASE:-linux-upstream}
> -pkgname=("${pkgbase}" "${pkgbase}-api-headers")
> -if grep -q CONFIG_MODULES=y include/config/auto.conf; then
> -       pkgname+=("${pkgbase}-headers")
> -fi
> +pkgname=("${pkgbase}")
> +
> +_extrapackages=${PACMAN_EXTRAPACKAGES:-}


Instead of adding inconsistent defaults in two places,
I would write like this:

_extrapackages=${PACMAN_EXTRAPACKAGES-headers api-headers}




Lastly, I will never accept new error messages
with CONFIG_MODULES=n.







> +for pkg in $_extrapackages; do
> +       pkgname+=("${pkgbase}-${pkg}")
> +done
> +
>  pkgver="${KERNELRELEASE//-/_}"
>  # The PKGBUILD is evaluated multiple times.
>  # Running scripts/build-version from here would introduce inconsistencies.
> --
> 2.46.0
>


--
Best Regards
Masahiro Yamada





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