linux-kernel - [PATCH 5/6] Coccinelle: Add a new mode named 'chain'

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Message-Id: <1286566061-17122-6-git-send-email-npalix.work@gmail.com>
Date:	Fri,  8 Oct 2010 21:27:40 +0200
From:	Nicolas Palix <npalix.work@...il.com>
To:	Randy Dunlap <rdunlap@...otime.net>,
	Nicolas Palix <npalix.work@...il.com>,
	Julia Lawall <julia@...u.dk>, Michal Marek <mmarek@...e.cz>,
	Kulikov Vasiliy <segooon@...il.com>,
	Gilles Muller <Gilles.Muller@...6.fr>,
	Sam Ravnborg <sam@...nborg.org>,
	Joerg Roedel <joerg.roedel@....com>,
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	cocci@...u.dk
Subject: [PATCH 5/6] Coccinelle: Add a new mode named 'chain'

spatch now returns -1 when a virtual rule (given with
-D on the command line) is not defined in the semantic patch.

Using this spatch feature, coccicheck is now
tries several modes by default, in the order:
	patch, report, context, org

Signed-off-by: Nicolas Palix <npalix.work@...il.com>
Signed-off-by: Julia Lawall <julia@...u.dk>
---
 scripts/coccicheck |   16 +++++++++++-----
 1 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/scripts/coccicheck b/scripts/coccicheck
index ef78c87..c7beb63 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -16,6 +16,7 @@ if [ "$C" = "1" -o "$C" = "2" ]; then
 else
     ONLINE=0
     FLAGS="-very_quiet"
+    OPTIONS="-dir $srctree"
 fi
 
 if [ ! -x "$SPATCH" ]; then
@@ -25,11 +26,11 @@ fi
 
 if [ "$MODE" = "" ] ; then
     if [ "$ONLINE" = "0" ] ; then
-	echo 'You have not explicitly specified the mode to use. Fallback to "report".'
+	echo 'You have not explicitly specified the mode to use. Using default "chain" mode.'
+	echo 'All available modes will be tried (in that order): patch, report, context, org'
 	echo 'You can specify the mode with "make coccicheck MODE=<mode>"'
-	echo 'Available modes are: report, patch, context, org'
     fi
-    MODE="report"
+    MODE="chain"
 fi
 
 if [ "$ONLINE" = "0" ] ; then
@@ -71,10 +72,15 @@ coccinelle () {
 	    sed -ne 's|^//#||p' $COCCI
 	    echo ''
 	fi
+    fi
 
-	$SPATCH -D $MODE $FLAGS -sp_file $COCCI $OPT -dir $srctree || exit 1
+    if [ "$MODE" = "chain" ] ; then
+	$SPATCH -D patch   $FLAGS -sp_file $COCCI $OPT $OPTIONS || \
+	$SPATCH -D report  $FLAGS -sp_file $COCCI $OPT $OPTIONS || \
+	$SPATCH -D context $FLAGS -sp_file $COCCI $OPT $OPTIONS || \
+	$SPATCH -D org     $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1
     else
-	$SPATCH -D $MODE $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1
+	$SPATCH -D $MODE   $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1
     fi
 
 }
-- 
1.7.0.4

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