Moved ancillary files to extras/ (fixes #1011)

extras/ci/fuzz.sh

@@ -0,0 +1,26 @@
+#!/bin/bash -eux
+
+ROOT_DIR=$(dirname $0)/../../
+INCLUDE_DIR=${ROOT_DIR}/src/
+FUZZING_DIR=${ROOT_DIR}/extras/fuzzing/
+CXXFLAGS="-g -fprofile-instr-generate -fcoverage-mapping -fsanitize=address,undefined,fuzzer -fno-sanitize-recover=all"
+
+fuzz() {
+	NAME="$1"
+	FUZZER="${NAME}_fuzzer"
+	FUZZER_CPP="${FUZZING_DIR}/${NAME}_fuzzer.cpp"
+	CORPUS_DIR="${FUZZING_DIR}/${NAME}_corpus"
+	SEED_CORPUS_DIR="${FUZZING_DIR}/${NAME}_seed_corpus"
+
+	clang++-${CLANG} ${CXXFLAGS} -o ${FUZZER} -I$INCLUDE_DIR ${FUZZER_CPP}
+
+	export ASAN_OPTIONS="detect_leaks=0"
+	export LLVM_PROFILE_FILE="${FUZZER}.profraw"
+	./${FUZZER} "$CORPUS_DIR" "$SEED_CORPUS_DIR" -max_total_time=30 -timeout=1
+
+	llvm-profdata-${CLANG} merge -sparse ${LLVM_PROFILE_FILE} -o ${FUZZER}.profdata
+	llvm-cov-${CLANG} report ./${FUZZER} -instr-profile=${FUZZER}.profdata
+}
+
+fuzz json
+fuzz msgpack