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Date:   Thu, 26 Oct 2017 10:49:28 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Julia Lawall <Julia.Lawall@...6.fr>
Cc:     "Luis R . Rodriguez" <mcgrof@...nel.org>,
        kernel-janitors@...r.kernel.org,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Michal Marek <michal.lkml@...kovi.net>, cocci@...teme.lip6.fr,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Coccinelle: make DEBUG_FILE option more useful

Hi Julia,


2017-10-15 18:55 GMT+09:00 Julia Lawall <Julia.Lawall@...6.fr>:
> Make coccicheck checked for the existence of DEBUG_FILE on each semantic
> patch, and bailed if it already existed.  This meant that DEBUG_FILE was
> useless for checking more than one semantic patch at a time.  Now the check
> is moved to the start of make coccicheck, and the 2> is changed to a 2>> to
> append to the file on each semantic patch.  Furthermore, the spatch command
> that is run for each semantic patch is also added to the DEBUG_FILE, to
> make clear what each stdout trace corresponds to.
>
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
>

I think this is a good improvement,
and looks almost good to me.

Just one nit.


>
>  }
>
> +if [ "$DEBUG_FILE" != "/dev/null" -a "$DEBUG_FILE" != "" ]; then
> +       if [ -f $DEBUG_FILE ]; then
> +               echo "Debug file $DEBUG_FILE exists, bailing"
> +               exit
> +       fi
> +       touch $DEBUG_FILE

I think this "touch" is redundant.

If the DEBUG_FILE does not exist, 2>> will automatically create it.




> +else
> +       DEBUG_FILE="/dev/null"
> +fi
> +
>  if [ "$COCCI" = "" ] ; then
>      for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do
>         coccinelle $f
>



-- 
Best Regards
Masahiro Yamada

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