linux-kernel - Re: [PATCH v2 -next] scripts: add compare-config utility

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Date:   Tue, 12 Apr 2022 09:51:51 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Chen Lifu <chenlifu@...wei.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 -next] scripts: add compare-config utility

Hi--

On 4/12/22 01:30, Chen Lifu wrote:
> This is an alternative utility to compare two .config files. Unlike
> existing utilities "diffconfig" in the kernel tree, it prints detailed
> results in table style, and support config name prefix so that it can be
> used elsewhere. It is useful sometimes, for example, to analyze .config files
> through tables, or to compare Buildroot .config.
> 
> With grep and awk, it can print similar results like "diffconfg" as well.
> 
> Signed-off-by: Chen Lifu <chenlifu@...wei.com>

Is your goal to have this merged into the kernel source tree?
If so, you should also send the patch the the kconfig maintainer and
mailing list.

The output is quite verbose in its default mode (no options specified).
To get something useful, I use -C -O -N.

For my uses and preferences, I would like to see a -D (e.g.) which
is just a combination of -CON. And it would be nice if that was the
default mode also. :)

> ---
> Changes in v2:
> - Add config name prefix support
> 
>  scripts/compare-config | 201 +++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 201 insertions(+)
>  create mode 100755 scripts/compare-config

thanks.
-- 
~Randy