linux-kernel - Re: [PATCH] kernel/.gitignore: ignore temporary kheaders

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Message-ID: <20230117135208.pyyziocg7kc25vfy@t-8ch.de>
Date:   Tue, 17 Jan 2023 13:52:08 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Nicolas Schier <n.schier@....de>
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH] kernel/.gitignore: ignore temporary kheaders_data
 directory

On Tue, Jan 17, 2023 at 09:34:01AM +0100, Nicolas Schier wrote:
> On Tue, Jan 17, 2023 at 05:15:25AM +0000, Thomas Weißschuh wrote:
> > If the kheaders archive generation is interrupted then this directory
> > may be left. Ignore it, it will be deleted by the next run of
> > kernel/gen_kheaders.sh.
> > 
> > Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
> > ---
> >  kernel/.gitignore | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/kernel/.gitignore b/kernel/.gitignore
> > index c6b299a6b786..57ab1d703763 100644
> > --- a/kernel/.gitignore
> > +++ b/kernel/.gitignore
> > @@ -1,3 +1,4 @@
> >  # SPDX-License-Identifier: GPL-2.0-only
> >  /config_data
> >  /kheaders.md5
> > +/kheaders_data.tar.xz.tmp/
> 
> What about removing the temporary directory on failure instead?  E.g.:
> 
> diff --git a/kernel/gen_kheaders.sh b/kernel/gen_kheaders.sh
> index 473036b43c83..c656b72a3cdc 100755
> --- a/kernel/gen_kheaders.sh
> +++ b/kernel/gen_kheaders.sh
> @@ -61,6 +61,8 @@ echo "  GEN     $tarfile"
>  rm -rf $cpio_dir
>  mkdir $cpio_dir
>  
> +trap "rm -rf ${cpio_dir}" EXIT
> +
>  if [ "$building_out_of_srctree" ]; then
>         (
>                 cd $srctree
> 
> 
> Otherwise, I'd suggest to extent this .gitignore patch by also adding
> 
>    clean-files += kheaders_data.tar.xz.tmp/
> 
> to kernel/Makefile.

Thanks for the suggestions.
I went with the clean-files aproach.
This allows the introspection of the directory on errors and seems to
match what is done elsewhere.

Thomas