Antwort: Re: [PATCH] console: added colored print out of log levels

[Eugen.Wiens at JUMO.net]

Hi Sascha,

Sascha Hauer <s.hauer at pengutronix.de> schrieb am 22.02.2018 08:56:02:

> Von: Sascha Hauer <s.hauer at pengutronix.de>
> An: Eugen Wiens <eugen.wiens at jumo.net>
> Kopie: barebox at lists.infradead.org
> Datum: 22.02.2018 08:56
> Betreff: Re: [PATCH] console: added colored print out of log levels
> 
> Hi Eugen,
> 
> On Wed, Feb 21, 2018 at 09:26:38AM +0100, Eugen Wiens wrote:
> > When the system is booting the warnings and errors are not be quickly
> > discovered. With this improvement the errors are colored red, the
> > warnings yellow and the notices blue.
> 
> I polished the patch a bit to match the barebox coding style. 
That sounds good for me and I will working on me, so that the next patches
will be more compliant to barebox coding style.

> However,
> there is still one detail I do not like. Some pr_err() messages have
> pr_err("ERROR: bla\n"). With colored console we now get:
> "ERROR: ERROR: bla". Now we could say we remove all "ERROR:" strings
> from the callers, but then we would have no "ERROR:" at all when
> colored console is disabled. The obvious solution would be to always
> add "ERROR:" to the messages, be it colored or not.
> I applied it for now, but I think this is not the final solution.
cool. Thanks.

> 
> Sascha
> 
> --------------------------------8<-----------------------------------
> 
> From a019f725ab48536a4bb93ec2dea319d9fc5206c5 Mon Sep 17 00:00:00 2001
> From: Eugen Wiens <eugen.wiens at jumo.net>
> Date: Wed, 21 Feb 2018 09:26:38 +0100
> Subject: [PATCH] console: added colored print out of log levels
> 
> When the system is booting the warnings and errors are not be 
> quickly discovered. With this improvement the errors are colored 
> red, the warnings yellow and the notices blue.
> 
> Signed-off-by: Eugen Wiens <eugen.wiens at jumo.net>
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> ---
>  common/console_common.c | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/common/console_common.c b/common/console_common.c
> index 0202345a62..00e020bd35 100644
> --- a/common/console_common.c
> +++ b/common/console_common.c
> @@ -33,6 +33,15 @@
> 
>  #ifndef CONFIG_CONSOLE_NONE
> 
> +static const char *colored_log_level[] = {
> +   [MSG_EMERG] = "\033[31mEMERG:\033[0m ",      /* red */
> +   [MSG_ALERT] = "\033[31mALERT:\033[0m ",      /* red */
> +   [MSG_CRIT] = "\033[31mCRITICAL:\033[0m ",   /* red */
> +   [MSG_ERR] = "\033[31mERROR:\033[0m ",      /* red */
> +   [MSG_WARNING] = "\033[33mWARNING:\033[0m ",   /* yellow */
> +   [MSG_NOTICE] = "\033[34mNOTICE:\033[0m ",   /* blue */
> +};
> +
>  int barebox_loglevel = CONFIG_DEFAULT_LOGLEVEL;
> 
>  LIST_HEAD(barebox_logbuf);
> @@ -102,6 +111,18 @@ nolog:
>     puts(str);
>  }
> 
> +static void print_colored_log_level(const int level)
> +{
> +   if (!console_allow_color())
> +      return;
> +   if (level >= ARRAY_SIZE(colored_log_level))
> +      return;
> +   if (!colored_log_level[level])
> +      return;
> +
> +   pr_puts(level, colored_log_level[level]);
> +}
> +
>  int pr_print(int level, const char *fmt, ...)
>  {
>     va_list args;
> @@ -111,6 +132,8 @@ int pr_print(int level, const char *fmt, ...)
>     if (!IS_ENABLED(CONFIG_LOGBUF) && level > barebox_loglevel)
>        return 0;
> 
> +   print_colored_log_level(level);
> +
>     va_start(args, fmt);
>     i = vsprintf(printbuffer, fmt, args);
>     va_end(args);
> @@ -129,6 +152,8 @@ int dev_printf(int level, const struct device_d 
> *dev, const char *format, ...)
>     if (!IS_ENABLED(CONFIG_LOGBUF) && level > barebox_loglevel)
>        return 0;
> 
> +   print_colored_log_level(level);
> +
>     if (dev->driver && dev->driver->name)
>        ret += sprintf(printbuffer, "%s ", dev->driver->name);
> 
> -- 
> 2.16.1
> 
> -- 
> Pengutronix e.K.                           | |
> Industrial Linux Solutions                 | http://www.pengutronix.de/ 
|
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Mit freundlichen Grüßen / Best regards

JUMO GmbH & Co. KG
Entwicklung - Vorentwicklung Plattformen / Predevelopment Platforms

i. A. Dipl.-Ing.(FH) Eugen Wiens 

Tel:             +49 661 6003 9577
Fax:            +49 661 6003 88 9577
Adresse:    Moritz-Juchheim-Straße 1 
                   36039 Fulda, Germany 
E-Mail:      eugen.wiens at jumo.net 
Internet:     http://www.jumo.net



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