Fuzzing: Move LPM build to oss-fuzz Dockerfile by default

Author: ralight

fuzzing/scripts/oss-fuzz-build.sh

@@ -29,18 +29,6 @@ cmake \
 make -j $(nproc)
 make install
 
-cd ${SRC}/libprotobuf-mutator
-cmake \
-	-DCMAKE_C_COMPILER=clang \
-	-DCMAKE_CXX_COMPILER=clang++ \
-	-DCMAKE_BUILD_TYPE=Debug \
-	-DLIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF=ON \
-	-DLIB_PROTO_MUTATOR_EXAMPLES=OFF \
-	-DLIB_PROTO_MUTATOR_TESTING=OFF \
-	.
-make -j $(nproc)
-make install
-
 # Build broker and library static libraries
 cd ${SRC}/mosquitto
 make \

fuzzing/scripts/oss-fuzz-dependencies.sh

@@ -34,9 +34,13 @@ apt-get update && apt-get install -y \
 	ninja-build \
 	pkg-config
 git clone https://github.com/ralight/cJSON ${SRC}/cJSON
-git clone https://github.com/google/libprotobuf-mutator ${SRC}/libprotobuf-mutator
 
-mkdir ${SRC}/LPM
-cd ${SRC}/LPM
-cmake ../libprotobuf-mutator -GNinja -DLIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF=ON -DLIB_PROTO_MUTATOR_TESTING=OFF -DCMAKE_BUILD_TYPE=Release
-ninja
+# If building outside of oss-fuzz, we need LPM
+if [ ! -d ${SRC}/LPM ]; then
+	git clone https://github.com/google/libprotobuf-mutator ${SRC}/libprotobuf-mutator
+
+	mkdir ${SRC}/LPM \
+		&& cd ${SRC}/LPM \
+		&& cmake ../libprotobuf-mutator -GNinja -DLIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF=ON -DLIB_PROTO_MUTATOR_TESTING=OFF -DCMAKE_BUILD_TYPE=Release \
+		&& ninja
+fi