Re: [PATCH v3 2/2] kbuild: make W=1 warn files that are tracked but ignored by git

[Nicolas Schier]

On Thu, Dec 29, 2022 at 04:43:10PM +0900 Masahiro Yamada wrote:
> The top .gitignore comments about how to detect files breaking
> .gitignore rules, but people rarely care about it.
> 
> Add a new W=1 warning to detect files that are tracked but ignored by
> git. If git is not installed or the source tree is not tracked by git
> at all, this script does not print anything.
> 
> Running it on v6.2-rc1 detected the following:
> 
>   $ make W=1 misc-check
>   Documentation/devicetree/bindings/.yamllint: warning: ignored by one of the .gitignore files
>   drivers/clk/.kunitconfig: warning: ignored by one of the .gitignore files
>   drivers/gpu/drm/tests/.kunitconfig: warning: ignored by one of the .gitignore files
>   drivers/hid/.kunitconfig: warning: ignored by one of the .gitignore files
>   fs/ext4/.kunitconfig: warning: ignored by one of the .gitignore files
>   fs/fat/.kunitconfig: warning: ignored by one of the .gitignore files
>   kernel/kcsan/.kunitconfig: warning: ignored by one of the .gitignore files
>   lib/kunit/.kunitconfig: warning: ignored by one of the .gitignore files
>   mm/kfence/.kunitconfig: warning: ignored by one of the .gitignore files
>   tools/testing/selftests/arm64/tags/.gitignore: warning: ignored by one of the .gitignore files
>   tools/testing/selftests/arm64/tags/Makefile: warning: ignored by one of the .gitignore files
>   tools/testing/selftests/arm64/tags/run_tags_test.sh: warning: ignored by one of the .gitignore files
>   tools/testing/selftests/arm64/tags/tags_test.c: warning: ignored by one of the .gitignore files
> 
> These are ignored by the '.*' or 'tags' in the top .gitignore, but
> there is no rule to negate it.
> 
> You might be tempted to do 'git add -f' but I want to have the real
> issue fixed (by fixing a .gitignore, or by renaming files, etc.).
> 
> Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
> Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx>
> Reviewed-by: Nicolas Schier <nicolas@xxxxxxxxx>
> ---
> 
> Changes in v3:
>   - change working directory to srctree (Nicolas)
> 
> Changes in v2:
>   - Add $(srctree)/ to make it work with O=
> 
>  Makefile           |  6 ++++++
>  scripts/misc-check | 19 +++++++++++++++++++
>  2 files changed, 25 insertions(+)
>  create mode 100755 scripts/misc-check

Tested-by: Nicolas Schier <nicolas@xxxxxxxxx>

out of curiosity: do you plan to implement more checks in the misc-checks
target?

Kind regards,
Nicolas

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