linux-kernel - Re: [PATCH 04/14] kconfig: print additional new line for choice for redirection

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Message-ID: <CAK7LNATE-8V=00-6g2AM6ymXR5mkc_GkL=Y-YU=raZhSG8MP1Q@mail.gmail.com>
Date:   Thu, 8 Feb 2018 15:00:56 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Ulf Magnusson <ulfalizer@...il.com>
Cc:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nicolas Pitre <nicolas.pitre@...aro.org>,
        "Luis R . Rodriguez" <mcgrof@...e.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Sam Ravnborg <sam@...nborg.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Marc Herbert <marc.herbert@...el.com>
Subject: Re: [PATCH 04/14] kconfig: print additional new line for choice for redirection

2018-02-08 8:34 GMT+09:00 Ulf Magnusson <ulfalizer@...il.com>:
> On Tue, Feb 6, 2018 at 1:34 AM, Masahiro Yamada
> <yamada.masahiro@...ionext.com> wrote:
>> If stdout is redirected to a file, prompts look differently due to
>> missing new lines.
>>
>> Currently, conf_askvalue() takes care of this by putting additional
>> new line, but conf_choice() does not.  Do likewise so that prompts
>> after 'choice' look properly.
>>
>> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
>> ---
>>
>>  scripts/kconfig/conf.c | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
>> index d346642..6ce06c8 100644
>> --- a/scripts/kconfig/conf.c
>> +++ b/scripts/kconfig/conf.c
>> @@ -317,6 +317,8 @@ static int conf_choice(struct menu *menu)
>>                 case oldaskconfig:
>>                         fflush(stdout);
>>                         xfgets(line, sizeof(line), stdin);
>> +                       if (!tty_stdio)
>> +                               printf("\n");
>>                         strip(line);
>>                         if (line[0] == '?') {
>>                                 print_help(menu);
>> --
>> 2.7.4
>>
>
> Reviewed-by: Ulf Magnusson <ulfalizer@...il.com>
>
> Maybe this could be moved into the xfgets() function as well.
>

Thanks for your comment!
Yes, it is better to move this into xfgets().

I improve this a bit more so that the redirected stdout
contains not only '\n' but also input keys.

https://patchwork.kernel.org/patch/10206611/


-- 
Best Regards
Masahiro Yamada