linux-kernel - Re: [PATCH] coccinelle: grep Options and Requires fields more precisely

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Message-ID: <69422e77-ac67-d23f-59e2-c8d0df1819b6@imag.fr>
Date:   Thu, 26 Oct 2017 09:26:17 +0200
From:   "Nicolas Palix (LIG)" <Nicolas.Palix@...g.fr>
To:     Julia Lawall <julia.lawall@...6.fr>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     cocci@...teme.lip6.fr, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Gilles Muller <Gilles.Muller@...6.fr>,
        Michal Marek <michal.lkml@...kovi.net>
Subject: Re: [PATCH] coccinelle: grep Options and Requires fields more
 precisely

Le 26/10/17 à 06:59, Julia Lawall a écrit :
> 
> 
> On Thu, 26 Oct 2017, Masahiro Yamada wrote:
> 
>> Currently, the required version for badzero.cocci is picked up from
>> its "Comments:" line since it contains the word "Requires".
>>
>> Surprisingly, ld-version.sh can extract the version number from the
>> string "Requires Coccinelle version 1.0.0-rc20 or later", but this
>> expectation is fragile.  Fix the .cocci file.  I removed "-rc20"
>> because ld-version.sh cannot handle it.
> 
> OK.
> 
>> Make the coccicheck script to see exact patterns for "Options:" and
>> "Requires:" in order to avoid accidental matching to what just happens
>> to appear in comment lines.
>>
>> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
> 
> Thanks for checking on this!
> 
> Acked-by: Julia Lawall <julia.lawall@...6.fr>
Acked-by: Nicolas Palix <nicolas.palix@...g.fr>
> 
>> ---
>>
>>   scripts/coccicheck                    | 4 ++--
>>   scripts/coccinelle/null/badzero.cocci | 2 +-
>>   2 files changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/scripts/coccicheck b/scripts/coccicheck
>> index 3e21a1b..1bfa2d2 100755
>> --- a/scripts/coccicheck
>> +++ b/scripts/coccicheck
>> @@ -168,8 +168,8 @@ OPTIONS="$OPTIONS $SPFLAGS"
>>   coccinelle () {
>>       COCCI="$1"
>>
>> -    OPT=`grep "Option" $COCCI | cut -d':' -f2`
>> -    REQ=`grep "Requires" $COCCI | cut -d':' -f2 | sed "s| ||"`
>> +    OPT=`grep "Options:" $COCCI | cut -d':' -f2`
>> +    REQ=`grep "Requires:" $COCCI | cut -d':' -f2 | sed "s| ||"`
>>       REQ_NUM=$(echo $REQ | ${DIR}/scripts/ld-version.sh)
>>       if [ "$REQ_NUM" != "0" ] ; then
>>   	    if [ "$SPATCH_VERSION_NUM" -lt "$REQ_NUM" ] ; then
>> diff --git a/scripts/coccinelle/null/badzero.cocci b/scripts/coccinelle/null/badzero.cocci
>> index 5551da2..f597c80 100644
>> --- a/scripts/coccinelle/null/badzero.cocci
>> +++ b/scripts/coccinelle/null/badzero.cocci
>> @@ -10,7 +10,7 @@
>>   // Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.  GPLv2.
>>   // Copyright: (C) 2012 Gilles Muller, INRIA/LiP6.  GPLv2.
>>   // URL: http://coccinelle.lip6.fr/
>> -// Comments: Requires Coccinelle version 1.0.0-rc20 or later
>> +// Requires: 1.0.0
>>   // Options:
>>
>>   virtual patch
>> --
>> 2.7.4
>>
>>


-- 
Nicolas Palix
http://lig-membres.imag.fr/palix/


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