#!/bin/bash

echo "Using PREFIX="${PREFIX:=$1}
echo "Using PROJECT="${PROJECT:=$2}
echo "Using COCCI="${COCCI:=$3}
echo "Using RESULTS="${RESULTS:=$4}
echo "Using SPFLAGS="${SPFLAGS:=$5}

if [ "`which spatch.opt`" ] ; then
    SPATCH=spatch.opt
else
    SPATCH=spatch
fi
echo "Using $SPATCH"

#echo "Using PREFIX="${PREFIX:=`pwd`}
#echo "Using COCCI="${COCCI:=$PREFIX/cocci}
#echo "Using PROJECT="${PROJECT:=$PREFIX/project}
#echo "Using RESULTS="${RESULTS:=$PREFIX/results}

SMPL=`find $COCCI -mindepth 1 -type f -name "*.cocci"| sed "s|$COCCI/||g"`

PRJNAME=`basename $PROJECT`

echo "Processing project \"$PRJNAME\""

mkdir -p $RESULTS/

for s in $SMPL;do

    f=`basename $s .cocci`

    # Produce bug report for a particular version and a particular bug pattern
    echo "#!/bin/bash" > $RESULTS/$f.sh
	echo "" >> $RESULTS/$f.sh
	echo "FLAGS=\"`grep -E \"// +Options *:\" $COCCI/$s | cut -f2 -d\":\"`\"" >> $RESULTS/$f.sh
	echo "INC?=$PROJECT/include" >> $RESULTS/$f.sh
	echo "echo \"Applying $COCCI/$s with: '\$FLAGS'\"" >> $RESULTS/$f.sh
	echo "nice -19 $SPATCH $SPFLAGS \$FLAGS -I \$INC -cocci_file $COCCI/$s -dir $PROJECT/ $FLAGS \\" >> $RESULTS/$f.sh
	echo "> $f.out \\" >> $RESULTS/$f.sh
	echo "2> $f.log" >> $RESULTS/$f.sh
	echo "echo \"$f.out completed\"" >> $RESULTS/$f.sh
	chmod u+x $RESULTS/$f.sh

done # s in $SMPL


#############################################
# Fill the Makefile
#############################################
# Generation of a Makefile per project
echo -e ".SUFFIXES: .out .sh\n" > $RESULTS/Makefile
echo -e "all: out\n" >> $RESULTS/Makefile
echo -e ".sh.out:" >> $RESULTS/Makefile
echo -e "\t-@./\$<\n" >> $RESULTS/Makefile

ALL_SMPL=`echo -n "out:"`

for s in $SMPL;do
    f=`basename $s .cocci`

#    echo "$f.out:" >> $RESULTS/Makefile
#    echo "	-./$f.sh" >> $RESULTS/Makefile
    ALL_SMPL="$ALL_SMPL $f.out"

done # s

echo "$ALL_SMPL" >> $RESULTS/Makefile

#############################################

# Cleanup dead links
find -L $RESULTS -type l -delete
# Cleanup empty dir.
find results/ -depth -type d -empty -delete
