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[gentoo-dev] Re: [PATCH 2/3] udev.eclass: add udev_hwdb_reload function

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On Tue, Apr 28, 2026 at 2:16 PM Lukas Schmelting <lschmelting@posteo.com> wrote:
>
> reload the udev hardware database using the `systemd-hwdb update`
> command. The `udevadm hwdb` has been deprecated upstream.
>
> See-also: https://github.com/systemd/systemd/commit/f8717d2a723cf594617c3acb7e90992c881a3280
> Signed-off-by: Lukas Schmelting <lschmelting@posteo.com>
> ---
>  eclass/udev.eclass | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
>
> diff --git a/eclass/udev.eclass b/eclass/udev.eclass
> index 7d1c213fa643..1690f7dd16cb 100644
> --- a/eclass/udev.eclass
> +++ b/eclass/udev.eclass
> @@ -130,3 +130,20 @@ udev_reload() {
>  }
>
>  fi
> +
> +# @FUNCTION: udev_hwdb_reload
> +# @DESCRIPTION:
> +# Update the udev hardware database.
> +# Should be called from pkg_postinst and pkg_postrm in packages installing hwdb
> +# files.
> +udev_hwdb_reload() {
> +       if [[ -n ${ROOT} ]]; then
> +               return 0
> +       fi
> +
> +       if [[ -d ${ROOT}/run/udev ]]; then
> +               ebegin "Running systemd-hwdb update, to update the binary hardware database"
> +               systemd-hwdb update --root "${ROOT}"
> +               eend $?
> +       fi
> +}
> --
> 2.53.0
>

This command does not actually reload anything; it updates /etc/udev/hwdb.bin.

Please rename the function to udev_hwdb_update instead.

Also remove the /run/udev check; that's not needed here since we do
not actually communicate with udevd.

Also remove the comma in "Running systemd-hwdb update, to update the
binary hardware database".

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[gentoo-dev] [PATCH 0/3] refactor and extend udev handling Lukas Schmelting <lschmelting@posteo.com> - 2026-04-28 20:20 +0200
  [gentoo-dev] [PATCH 2/3] udev.eclass: add udev_hwdb_reload function Lukas Schmelting <lschmelting@posteo.com> - 2026-04-28 20:30 +0200
    [gentoo-dev] Re: [PATCH 2/3] udev.eclass: add udev_hwdb_reload function Mike Gilbert <floppym@gentoo.org> - 2026-04-28 20:40 +0200
      [gentoo-dev] [PATCH v2 0/2] range-diff v1/v2 Lukas Schmelting <lschmelting@posteo.com> - 2026-04-29 00:10 +0200
        [gentoo-dev] [PATCH v2 3/3] metadata/install-qa-check.d: add udev hwdb check Lukas Schmelting <lschmelting@posteo.com> - 2026-04-29 00:20 +0200
        [gentoo-dev] [PATCH v2 2/3] udev.eclass: add udev_hwdb_update function Lukas Schmelting <lschmelting@posteo.com> - 2026-04-29 00:20 +0200
      [gentoo-dev] [PATCH 3/3] metadata/install-qa-check.d: add udev hwdb check Lukas Schmelting <lschmelting@posteo.com> - 2026-04-29 20:00 +0200
      [gentoo-dev] [PATCH 0/3] "bash -n" fixes and nits Lukas Schmelting <lschmelting@posteo.com> - 2026-04-29 20:00 +0200
        [gentoo-dev] [PATCH 1/3] metadata/install-qa-check.d: refactor 60udev-eclass Lukas Schmelting <lschmelting@posteo.com> - 2026-04-29 20:00 +0200
        [gentoo-dev] [PATCH 2/3] udev.eclass: add udev_hwdb_update function Lukas Schmelting <lschmelting@posteo.com> - 2026-04-29 20:00 +0200
          [gentoo-dev] Re: [PATCH 2/3] udev.eclass: add udev_hwdb_update function Mike Gilbert <floppym@gentoo.org> - 2026-04-29 20:40 +0200
            [gentoo-dev] Re: [PATCH 2/3] udev.eclass: add udev_hwdb_update function Lukas Schmelting <lschmelting@posteo.com> - 2026-04-29 21:40 +0200
  [gentoo-dev] [PATCH 1/3] metadata/install-qa-check.d: refactor 60udev-eclass Lukas Schmelting <lschmelting@posteo.com> - 2026-04-28 20:30 +0200
  [gentoo-dev] [PATCH 3/3] metadata/install-qa-check.d: add udev hwdb check Lukas Schmelting <lschmelting@posteo.com> - 2026-04-28 20:30 +0200

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