linux-kernel - Re: [PATCH v2 4/9] gen_compile_commands: reword the help message of -d option

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Date:   Fri, 21 Aug 2020 17:29:23 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Nathan Huckleberry <nhuck@...gle.com>,
        Tom Roeder <tmroeder@...gle.com>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 4/9] gen_compile_commands: reword the help message of
 -d option

On Fri, Aug 21, 2020 at 12:02 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> I think the help message of the -d option is somewhat misleading.
>
>   Path to the kernel source directory to search (defaults to the working directory)
>
> The part "kernel source directory" is the source of the confusion.
> Some people misunderstand as if this script did not support separate
> output directories.
>
> Actually, this script also works for out-of-tree builds. You can
> use the -d option to point to the object output directory, not to
> the source directory. It should match to the O= option used in the
> previous kernel build, and then appears in the "directory" field of
> compile_commands.json.
>
> Reword the help message.
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> ---
>
> Changes in v2:
>   - New patch
>
>  scripts/gen_compile_commands.py | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/scripts/gen_compile_commands.py b/scripts/gen_compile_commands.py
> index 1b9899892d99..5f6318da01a2 100755
> --- a/scripts/gen_compile_commands.py
> +++ b/scripts/gen_compile_commands.py
> @@ -31,13 +31,13 @@ def parse_arguments():
>
>      Returns:
>          log_level: A logging level to filter log output.
> -        directory: The directory to search for .cmd files.
> +        directory: The work directory where the objects were built

Punctuation (add a period `.`).

>          output: Where to write the compile-commands JSON file.
>      """
>      usage = 'Creates a compile_commands.json database from kernel .cmd files'
>      parser = argparse.ArgumentParser(description=usage)
>
> -    directory_help = ('Path to the kernel source directory to search '
> +    directory_help = ('specify the output directory used for the kernel build '

Capitalization (specify -> Specify)

With that:
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>

>                        '(defaults to the working directory)')
>      parser.add_argument('-d', '--directory', type=str, help=directory_help)
>
> --
> 2.25.1
>


-- 
Thanks,
~Nick Desaulniers