linux-kernel - Re: [PATCH v2 2/9] gen_compile_commands: use choices for --log

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Date:   Fri, 21 Aug 2020 17:23:19 -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 2/9] gen_compile_commands: use choices for --log_levels option

On Fri, Aug 21, 2020 at 12:02 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> Use 'choices' instead of the own code to check if the given parameter
> is valid.
>
> I also simplified the help message because, with 'choices', --help
> shows the list of valid parameters:
>
>   --log_level {DEBUG,INFO,WARNING,ERROR,CRITICAL}
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>

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

> ---
>
> Changes in v2:
>   - New patch
>
>  scripts/gen_compile_commands.py | 14 ++++----------
>  1 file changed, 4 insertions(+), 10 deletions(-)
>
> diff --git a/scripts/gen_compile_commands.py b/scripts/gen_compile_commands.py
> index 1bcf33a93cb9..535248cf2d7e 100755
> --- a/scripts/gen_compile_commands.py
> +++ b/scripts/gen_compile_commands.py
> @@ -45,24 +45,18 @@ def parse_arguments():
>                     'compile_commands.json in the search directory)')
>      parser.add_argument('-o', '--output', type=str, help=output_help)
>
> -    log_level_help = ('The level of log messages to produce (one of ' +
> -                      ', '.join(_VALID_LOG_LEVELS) + '; defaults to ' +
> +    log_level_help = ('the level of log messages to produce (defaults to ' +
>                        _DEFAULT_LOG_LEVEL + ')')
> -    parser.add_argument(
> -        '--log_level', type=str, default=_DEFAULT_LOG_LEVEL,
> -        help=log_level_help)
> +    parser.add_argument('--log_level', choices=_VALID_LOG_LEVELS,
> +                        default=_DEFAULT_LOG_LEVEL, help=log_level_help)
>
>      args = parser.parse_args()
>
> -    log_level = args.log_level
> -    if log_level not in _VALID_LOG_LEVELS:
> -        raise ValueError('%s is not a valid log level' % log_level)
> -
>      directory = args.directory or os.getcwd()
>      output = args.output or os.path.join(directory, _DEFAULT_OUTPUT)
>      directory = os.path.abspath(directory)
>
> -    return log_level, directory, output
> +    return args.log_level, directory, output
>
>
>  def process_line(root_directory, file_directory, command_prefix, relative_path):
> --
> 2.25.1
>


-- 
Thanks,
~Nick Desaulniers