#!/bin/bash -e

top="$(git rev-parse --show-toplevel)"
files="$(git ls-files ':/*.[ch]')"
args=

case "$1" in
    -i)
        args="$args --in-place"
        shift
        ;;
esac

if ! parallel -h >/dev/null; then
    echo 'Please install GNU parallel (package "parallel")'
    exit 1
fi

for SCRIPT in ${@-$top/coccinelle/*.cocci} ; do
    echo "--x-- Processing $SCRIPT --x--"
    TMPFILE=`mktemp`
    echo "+ spatch --sp-file $SCRIPT $args ..."
    parallel --halt now,fail=1 --keep-order --noswap --max-args=20 \
             spatch --sp-file $SCRIPT $args ::: $files \
             2>"$TMPFILE" || cat "$TMPFILE"
    echo -e "--x-- Processed $SCRIPT --x--\n"
done