linux-kernel - Re: [PATCH] setlocalversion: do not append git commit hash if localversion* exists

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Date:   Wed, 1 Feb 2023 02:20:10 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] setlocalversion: do not append git commit hash if
 localversion* exists

On Tue, Jan 31, 2023 at 10:33 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> Since commit dcfbcb1033bb ("setlocalversion: use only the correct
> release tag for git-describe"), KERNELRELEASE of linux-next is
> annoyingly long:
>
>   $ make kernelrelease
>   6.2.0-rc6-next-20230131-09515-g80bd9028feca
>
> The string '-09515-g80bd9028feca' is appended because git-describe now
> uses the v6.2.0 tag instead of the next-20230113 tag.

 v6.2.0  -> v6.2-rc6



>
> In linux-next, the 'localversion-next' file well specifies the local
> version, so the extra info from git is unneeded.
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> ---
>
>  scripts/setlocalversion | 21 +++++++++++----------
>  1 file changed, 11 insertions(+), 10 deletions(-)
>
> diff --git a/scripts/setlocalversion b/scripts/setlocalversion
> index e2b2d492ac13..4219a0ca1e62 100755
> --- a/scripts/setlocalversion
> +++ b/scripts/setlocalversion
> @@ -113,22 +113,23 @@ if [ -z "${KERNELVERSION}" ]; then
>         exit 1
>  fi
>
> -res="${KERNELVERSION}"
> -
>  # localversion* files in the build and source directory
> -res="${res}$(collect_files localversion*)"
> +file_localversion="$(collect_files localversion*)"
>  if test ! "$srctree" -ef .; then
> -       res="$res$(collect_files "$srctree"/localversion*)"
> +       file_localversion="${file_localversion}$(collect_files "$srctree"/localversion*)"
>  fi
>
> -# CONFIG_LOCALVERSION and LOCALVERSION (if set)
> +# CONFIG_LOCALVERSION
>  config_localversion=$(sed -n 's/^CONFIG_LOCALVERSION=\(.*\)$/\1/p' include/config/auto.conf)
> -res="${res}${config_localversion}${LOCALVERSION}"
>
>  # scm version string if not at the kernel version tag
> -if grep -q "^CONFIG_LOCALVERSION_AUTO=y$" include/config/auto.conf; then
> +if [ -n "${file_localversion}" ]; then
> +       # If localversion* files exist (like in linux-next), the version is
> +       # well specified. Do not append scm_version.
> +       scm_version=
> +elif grep -q "^CONFIG_LOCALVERSION_AUTO=y$" include/config/auto.conf; then
>         # full scm version string
> -       res="$res$(scm_version)"
> +       scm_version="$(scm_version)"
>  elif [ "${LOCALVERSION+set}" != "set" ]; then
>         # If the variable LOCALVERSION is not set, append a plus
>         # sign if the repository is not in a clean annotated or
> @@ -137,7 +138,7 @@ elif [ "${LOCALVERSION+set}" != "set" ]; then
>         #
>         # If the variable LOCALVERSION is set (including being set
>         # to an empty string), we don't want to append a plus sign.
> -       res="$res$(scm_version --short)"
> +       scm_version="$(scm_version --short)"
>  fi
>
> -echo "$res"
> +echo "${KERNELVERSION}${file_localversion}${config_localversion}${LOCALVERSION}${scm_version}"
> --
> 2.34.1
>


-- 
Best Regards
Masahiro Yamada