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#!/bin/sh

SPATCH="`which ${SPATCH:=spatch}`"

if [ ! -x "$SPATCH" ]; then
    echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'
    exit 1
fi

if [ "$MODE" = "" ] ; then
    echo 'You have not explicitly specify the mode to use. Fallback to "report".'
    echo 'You can specify the mode with "make coccicheck MODE=<mode>"'
    echo 'Available modes are: report, patch, context, org'
    MODE="report"
fi

echo ''
echo 'Please check for false positives in the output before submitting a patch.'
echo 'When using "patch" mode, carefully review the patch before submitting it.'
echo ''

function coccinelle {
    COCCI="$1"
    DIR="$2"

    OPT=`grep "Option" $COCCI | cut -d':' -f2`
    FILE=`echo $COCCI | sed "s|$DIR/||"`

    echo "Processing `basename $COCCI` with option(s) \"$OPT\""
    echo 'Message example to submit a patch:'

    sed -e '/\/\/\//!d' -e 's|^///||' $COCCI

    echo ' The semantic patch that makes this change is available'
    echo " in $FILE."
    echo ''
    echo ' More information about semantic patching is available at'
    echo ' http://coccinelle.lip6.fr/'
    echo ''

#   The option '-parse_cocci' can be used to syntaxically check the SmPL files.
#
#    $SPATCH -D $MODE -very_quiet -parse_cocci $COCCI $OPT > /dev/null

    $SPATCH -D $MODE -very_quiet -sp_file $COCCI $OPT -dir $DIR
}

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