Re: [PATCH] kbuild: use hostname -s along uname to obtain LINUX_COMPILE_HOST

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On Thu, Mar 31, 2022 at 3:23 AM FraSharp <f.duca00@xxxxxxxxx> wrote:
>
> From: Francesco Duca <s23265@xxxxxxxx>
>
> * On some systems (e.g. macOS), using commands like 'uname -n' or
>   'hostname' will print something similar to "hostname.domain"


Not only macOS, but also on Linux systems such as Fedora, Debian.

'uname -s' or 'hostname' prints "hostname.domain"




>   ("Francescos-Air.fritz.box" for example), which is very annoying.

I do not think so.


>   What works instead is 'hostname -s', which will only write hostname
>   without the domain ("Francescos-Air" for example),
>   but also keep 'uname -n', as some systems as Arch Linux does not have
>   'hostname' as command.

If so, on Arch Linux, will this patch spit
  hostname: command not found
error message because   "2>/dev/null" is missing ?


And, the intention of this patch is,
print  Francescos-Air if the 'hostname -s' command is available,
but Francescos-Air.fritz.box  otherwise, correct  ?






>
> * This commit is complementary to
>   1e66d50ad3a1dbf0169b14d502be59a4b1213149
>   ("kbuild: Use uname for LINUX_COMPILE_HOST detection")
>
> Signed-off-by: Francesco Duca <s23265@xxxxxxxx>
> ---
>  scripts/mkcompile_h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
> index ca40a5258..6054e3eee 100755
> --- a/scripts/mkcompile_h
> +++ b/scripts/mkcompile_h
> @@ -34,7 +34,7 @@ else
>         LINUX_COMPILE_BY=$KBUILD_BUILD_USER
>  fi
>  if test -z "$KBUILD_BUILD_HOST"; then
> -       LINUX_COMPILE_HOST=`uname -n`
> +       LINUX_COMPILE_HOST=$(hostname -s || uname -n)
>  else
>         LINUX_COMPILE_HOST=$KBUILD_BUILD_HOST
>  fi
> --
> 2.32.0 (Apple Git-132)
>


-- 
Best Regards
Masahiro Yamada



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